Title of Invention	ANTENNA ARRANGEMENT, IN PARTICULAR FOR A MOBILE RADIO BASE STATION
Abstract	An improved antenna arrangement is characterized by the following features: the antenna arrangement comprises at least one dipolar emitter arrangement (3) with the associated supporting device and/or balancing (21) and the associated dipole and/or emitter halves (3a) and the reflector or the reflector element or the reflector frame (11), which are formed from a common part, and the material of this common part is electrically conductive or is provided with an electrically conductive surface or surface layer if it comprises a dielectric material.

Title of Invention

ANTENNA ARRANGEMENT, IN PARTICULAR FOR A MOBILE RADIO BASE STATION

Abstract

An improved antenna arrangement is characterized by the following features: the antenna arrangement comprises at least one dipolar emitter arrangement (3) with the associated supporting device and/or balancing (21) and the associated dipole and/or emitter halves (3a) and the reflector or the reflector element or the reflector frame (11), which are formed from a common part, and the material of this common part is electrically conductive or is provided with an electrically conductive surface or surface layer if it comprises a dielectric material.

Full Text	Antenna arrangement, in particular for a mobile radio base station The invention relates to an antenna arrangement, in particular for a mobile radio base station, according to the preamble of Claim 1. Antenna arrangements, in particular for a mobile radio base station, are known, for example, from WO 00/039894 A1. In this prior publication, a vertically alignable reflector is described, on the two outer lateral limitations of which running vertically and parallel with respect to one another, a lateral web projecting in the radiation direction and therefore transverse to the reflector plane is configured, in each case. Arranged one above each other in the vertical direction are a plurality of dipole arrangements which radiate in two polarization planes aligned perpendicularly with respect to one another and which consist of so-called vector dipoles. These vector dlpoles are structurally similarly designed to dipole squares. The design and the feed are, however, such that, despite the horizontally or vertically aligned dipoles, the dipole arrangement as a whole acts as an X-polarized antenna, in which the two polarization planes which are perpendicular with respect to one another are aligned at an angle of +45° or -45° with respect to the vertical or the horizontal. It can be inferred from the generic DE 103 596 22 A1, that the dual-polarized radiators, which are seated in front of a reflector, can be provided with a capacitive outer conductor coupling. Introduced in each half of the two balancing devices located rotated about 90° with respect to one another are therefore axial bores extending perpendicularly to the reflector plane, in the region of which, rod-shaped coupling elements 21 galvanically connected to the reflector are seated and are surrounded by cylindrical insulators, on which the pairs of balancing halves, which are provided with the total of four axial bores and arranged rotated about 90° with respect to one another, of the dual-polarized radiator arrangement can be mounted. An inner conductor for feeding the two polarizations of the radiator arrangement located perpendicularly with respect to one another can be laid inside two rod- shaped coupling elements from the rear side of the reflector. From this prior publication it can also be inferred that the dipoie-shaped radiator arrangement, with the associated carrying device and/or balancing device and the associated dipole and/or radiator halves, forms a common part which is electrically conductive, or is provided with an electrically conductive surface or surface layer. The radiator arrangement formed in this manner is then placed by means of the outer conductor coupling mentioned on an associated reflector arrangement, according to the above-mentioned DE 103 59 622 A1. A radiator arrangement is also known from EP 1 588 454 B1. According to this prior publication, the use, for example, of a vertically alignable antenna arrangement with a reflector is described, on the vertical lateral limiting lines of which two lateral webs projecting transversely and, in particular, perpendicularly to the reflector plane in the direction of radiation are configured, between which the dual-polarized radiators arranged in the vertical direction above one another are seated. According to this prior publication, the base of the balancing device of the associated radiator arrangement is also capacitively connected (in other words without any electric/galvanic contact) to the reflectors, or coupled thereto, with the interposition of a base, for which purpose the reflector has a recess, in which the non-conductive base engages and is anchored and in turn holds the balancing device or the base of the balancing device of the dual-polarized radiator. The inner conductor can be laid here as described in the above-mentioned prior art. Finally, antenna arrangements with reflectors are known, on the longitudinal lateral regions of which, in other words on the longitudinal or vertical lateral regions thereof, webs projecting forward from the reflector plane are provided, as can be inferred, for example, from the prior publications WO 99/62138 A1, US 5,710,569 A or EP 0 916 169 B1. In an alternative embodiment according to this prior publication, it is shown that, instead of an electrically conductive reflector, generally in the form of a metal sheet, a printed circuit board can also be used, on which the reflector is constructed. In this case, the electrically conductive ground face is preferably omitted on one side of the printed circuit board or the base is also provided with insulation in this region. It is to be inferred as known from WO 2004/091041 A1 that a reflector for a radiator arrangement is not constructed, for example, from a plurality of sheet-metal parts, but may consist of a cast part, a deep drawn part, a stamped part or a milled part. In this case, the reflector produced in this manner may also be configured at least with an additionally integrated functional part, which is integrally connected to the reflector. This functional part may be one or more housing parts for HF components. It is described how, for example, a housing attachment is produced integrally with the reflector on the reflector rear, in which housing attachment feed lines for the feeding of radiators arranged on the front can be accommodated. It is an object of the invention, proceeding from the generic prior art according to DE 103 59 622 A1, to provide an antenna arrangement, in which the risk of the occurrence of intermodulation products is as low as possible. In this case, the production-related outlay for assembly is also to be as low as possible. The object is achieved according to the invention according to the features disclosed in Claim 1. Advantageous configurations of the invention are given in the sub-claims. The invention provides an improved antenna arrangement which can be produced simply and with high precision with exactly predetermined radiation properties, avoiding potential sources of interference, such as, for example, undesired intermodulations. The antenna arrangement according to the invention is distinguished in that the at least one radiator arrangement and an associated reflector or at least an associated reflector frame are produced together, in particular are cast, in other words consist of a common part or, for example, cast part. The entire antenna arrangement preferably comprises at least one radiator arrangement and the reflector or part reflector or a reflector frame which are formed from a common diecast part, in particular a metal diecast part, such as, for example, an aluminium cast part. It is also possible to cast the entire arrangement from a dielectric material, in particular plastics material, and then to provide it with a metallised, i.e. electrically conductive surface. In particular when the antenna arrangement is produced from metal with regard to its important parts, in other words, for example, with the mentioned radiator arrangement (in other words, for example, the dipole and/or radiator halves and the associated carrying or balancing device and the associated reflector or a part reflector), other production methods can also be considered, for example production by deep drawing, milling or the like. In other words, the important parts of the antenna arrangement of this type, comprising the radiator arrangement with the associated carrying device and/or balancing device and the associated reflector or associated reflector part, consist of a part produced together which can also be called one-part or integral. Frequently a so-called "primary forming method" is also referred to for parts produced in this manner. In this case, the reflector arrangement has a recess, within which the carrying device of the radiator arrangement is provided, which is preferably mechanically rigidly connected at its base by means of at least two, and preferably by means of at least four, holding or support webs arranged offset in the peripheral direction to the reflector arrangement surrounding the recess. In the framework of an antenna arrangement of this type according to the invention, the reflector arrangement may also at least comprise a longitudinal and/or transverse web. If the antenna arrangement according to the invention is used, in particular, as a base station for a mobile radio antenna, it generally comprises, when erected in a vertical orientation, a plurality of radiator devices arranged one above the other at a spacing, so a uniformly cast antenna of this type according to the invention with a plurality of radiators and/or radiator arrangements and the cast reflector or reflector frame comprises two lateral longitudinal webs extending in the vertical direction (which may be arranged located at a lateral edge or located offset thereto rather toward the centre). Furthermore, the antenna arrangement according to the invention may, however, also comprise an upper and a lower transverse web. If a plurality of radiator arrangements are arranged offset with respect to one another in the mounting direction, transverse webs may also be configured running between them in each case which are also cast integrally with the entire antenna arrangement. An entire antenna arrangement of this type may thus be produced as a uniform cast part which can be handled. In a preferred embodiment, the radiator arrangement cast with the reflector or the reflector frame may also consist of dual-polarized radiator arrangements which radiate in two polarization planes which are perpendicular with respect to one another. In this case, cruciform dipole radiators could be used but also so-called vector dipoles, as are basically known from WO 00/039894 A1. In a preferred embodiment, vector dipoles are used, as known from WO 2004/100315 A1, in which namely the radiator halves belonging to each polarization plane, arranged diagonally with respect to one another and, viewed alone in plan view, formed so as to be square or similar to a square, can be configured with a closed part face or even closed over the whole face. In a preferred embodiment, it is also provided here that in the region of these dipole or radiator halves, corresponding recesses are provided in the region of the reflector plane. Namely, in the region of the slots separating the individual dipole halves or radiator halves from one another, which pass into recesses of the balancing device or carrying device carrying the radiator device, holding webs or holding connections may preferably be provided located in the reflector plane, via which the radiator arrangement seated in the centre is held by the reflector frame surrounding it. The embodiment mentioned last also offers the advantage that a corresponding tool can also be used which, during the casting process, has an upper face limiting the cavity, which forms the lower face of the respective dipole half or radiator half. This tool can then be withdrawn downwardly, in other words with the transverse component to the reflector plane through the corresponding window-like recess, the entire radiator arrangement being held by the holding webs mentioned or holding connection portions, via which the radiator arrangement is connected with the reflector surrounding it. In particular when a reflector is formed without longitudinal and/or transverse webs, there would also be the possibility of removing tools laterally with a withdrawal movement parallel to the reflector plane during demolding, so the reflector plane could then also be closed. In a reflector formed in this manner, the base of the balancing device of the radiator arrangement may be connected galvanically, i.e. in terms of direct current, to the reflector plane. The dual-polarized radiator arrangement and the associated reflector frame may be formed as a whole from an electrically conductive material. The radiator arrangement and the reflector frame may, however, also be formed from a plastics material or in general dielectric material, i.e. cast, the corresponding parts then being provided with an electrically conductive surface layer. In this case, it is not necessary, however, for example, for the above-mentioned holding webs or holding connections between the carrying device and the radiator device and the reflector frame to also be electrically conductive. In other words, the radiator device and, in particular, its carrying device and/or the balancing device and the reflector frame may be galvanically separated from one another. The antenna arrangement according to the invention with a reflector arrangement preferably comprising a plurality of radiators and a reflector frame with longitudinal and/or transverse webs may, however, also be capacitively coupled to a ground face or capacitively coupled to a ground face arranged below the so-called reflector frame. It has previously been conventional in the prior art, to generally use reflectors made of a metal sheet, on which the radiator modules are constructed. Owing to the radiators arranged between the lateral outer limitation of the reflector plane and the radiators generally arranged rather to the centre, it was possible to configure at a suitable point the longitudinal lateral limitations projecting transversely to the reflector plane in the form of longitudinal webs which could be adjusted, for example, between a perpendicular alignment with respect to the reflector plane through to an angled alignment in such a way that a desired radiation shaping was possible. If, on the other hand, it was desired to use reflectors in the form of printed circuit boards (so-called PCBs), which were provided on one printed circuit board side with an electrically conductive ground face, this required that the webs required for the radiation formation had to be connected to the ground face of the printed circuit board by means of screw or solder connections in order to produce a clear galvanic connection here. This assembly work was, however, not only laborious but constantly caused potential intermodulation sources of interference. In contrast, it is now proposed, proceeding from a printed circuit board which is preferably provided on the radiator side with an electrically conductive ground face and an insulating layer located thereabove, building on this, to position the reflector frame with the radiator arrangement connected thereto, which reflector frame is provided with a coupling face parallel to the ground face of the printed circuit board, longitudinal and/or transverse webs required for the pattern formation then being configured in turn on this coupling face. In other words, a capacitive reflector frame coupling is preferably proposed which makes it possible to capacitively couple the longitudinal and/or transverse webs required for the pattern formation to a ground face seated on a printed circuit board. In the scope of the invention, a capacitive coupling of the reflector frame is thus preferably provided on a printed circuit board without a galvanic connection between the reflector and printed circuit board ground face. The invention is distinguished by a stable intermodulation-free connection. Above all, a precisely defined coupling between the ground face of the printed circuit board and the reflector frame can also be ensured in the scope of the invention by a clearly defined spacing and/or by a clearly definable size of the coupling faces. Finally, a rapid and uncomplicated assembly is also possible in the scope of the invention, so fault sources are reduced and, above all, solder points on the reflector are omitted. If the uniformly cast antenna arrangement according to the invention consisting of the reflector frame and radiator module or radiator modules is used as the antenna arrangement, further assembly steps for connection to an additional printed circuit board, for example one provided with a ground face, would no longer be necessary at all. If a printed circuit board of this type provided with a ground face is used to produce a capacitive outer conductor coupling, a simple connection is possible, for example, by using an adhesive strip which adheres on both sides, in order to produce the reflector frame with the printed circuit board located therebelow and provided with a ground face with the formation of the total reflector with the capacitive outer conductor coupling. The completely assembled unit, consisting of the reflector frame and the radiator arrangement connected thereto and the printed circuit board, forms a self-supporting unit. The reflector frame and the base of the radiator arrangement or the radiator arrangements may be fixed on the board with all suitable means, for example by means of clips, by means of an adhesive tape which adheres on both sides, separate adhesive etc. The ground face is preferably provided on the printed circuit board by the producer with an insulating layer allowing a galvanic separation with respect to the reflector frame, for example in the form of a lacquer, in particular solder resist lacquer, a film or another plastics material layer. If the reflector frame is glued on by means of an adhesive tape adhering on both sides, an insulation and therefore a galvanic separation is through this produced between the electrically conductive reflector frame, on the one hand, and ground face on the printed circuit board, on the other hand, so a separate insulating layer on the ground face could even be dispensed with. Further advantages, details and features of the invention emerge below from the embodiments described in the figures, in which, in detail: Fig. 1: shows a schematic three-dimensional view of a basic type of an antenna according to the invention with a dual-polarized radiator arrangement; Fig. 2: shows an exploded view of the embodiment of Fig. 1; Fig. 3: shows a corresponding schematic three-dimensional view of an antenna arrangement according to the invention with three dual- polarized radiators arranged offset with respect to one another; Fig. 4: shows an exploded view of the embodiment of Fig. 3; Fig. 5: shows a schematic cross sectional view through a dual-polarized radiator with a part of the reflector arrangement to clarify the feeding of the radiator; and Fig. 6: shows an embodiment modified with respect to Fig. 5. Fig. 1 shows the basic type of an antenna arrangement according to the invention as can be used, for example, for a mobile radio base station. The antenna arrangement comprises a reflector arrangement 1, in front of which a dual-polarized radiator or a dual-polarized radiator arrangement 3 is provided. In the embodiment shown, this is a vector dipole, which radiates in two polarization planes P which are perpendicular with respect to one another and which are perpendicular to the reflector plane and run virtually diagonally through the corners of the radiator arrangement which is square in plan view. With regard to the construction and mode of functioning of such a radiator type, reference is made, for example, to WO 00/039894 A1. However, any radiator or radiator type can basically be used in the scope of the invention, in particular dipole radiators and/or patch radiators, such as are known, for example, from the prior publications DE 197 22 742 A1, DE 196 27 015 A1, US 5,710,569 A, WO 00/039894 A1 or DE 101 50 150 A1. It can be inferred from the view according to Fig. 1 that the antenna arrangement has a so-called reflector or reflector frame 11. This reflector or reflector frame 11 comprises a reflector face 13 which will sometimes also be called a coupling face 13' below in view of an embodiment of the invention still to be described below. This reflector face 13 is provided, in the embodiment shown, with longitudinal webs 15 extending perpendicularly with respect to the reflector face 13 and transverse webs 17 which are configured and/or provided, in the embodiment shown, on the outer limitations of the reflector frame 11 but may also be located offset further inward relative to the outer limitations of the reflector frame 11, so a portion of the reflector projecting outwardly over the webs 15, 17 remains. These longitudinal and transverse webs 15, 17 are also connected to one another at the corner regions 19. The longitudinal and transverse webs shown do not absolutely necessarily have to be aligned perpendicularly to the reflector face 13. These webs may also partially extend in an alignment to the reflector face differing from a 90° angle, for example diverging in the radiation direction or running toward one another or may be more inclined to the left or the right etc. To this extent, limitations basically do not exist. It can also be seen from the view according to Fig. 1 that the reflector face 13 is provided with a recess 13a which, in the embodiment shown, has dimensions in the longitudinal and transverse direction that are as large as the dual-polarized radiator 3 with regard to its longitudinal and/or transverse extension. The cut-out face with the formation of the corresponding recess 13a may be shaped in any way here, i.e. it may differ from the outer contour of the radiator and even comprise curved edge courses, so the recess 13a thus formed is defined by curved section courses or any other limitation lines. It can also be seen from the view according to Fig. 1 that the two balancing devices 21 arranged rotated about 90° with respect to one another (one balancing device for each polarization of the radiator device 3) have a base 121 located at the bottom in Fig. 1 connecting them together, from which upwardly extending so-called balancing slots 123 are provided. To this extent, a carrying device 21 for the dipoles or radiators or dipole or radiator halves etc. is primarily also referred to below, the carrying device comprising corresponding slots 123 extending axially from the top in the direction of the base 121. The antenna arrangement according to the invention is distinguished according to one embodiment in that the at least one radiator arrangement and an associated reflector or at least one associated reflector frame are cast together, in other words consist of a common cast part. The entire antenna arrangement preferably comprises at least one radiator arrangement and the reflector or the part reflector or a reflector frame which are formed from a common cast part, in particular a diecast part, such as, for example, a metal diecast part or an aluminium cast part. It is also possible to cast the entire arrangement from a dielectric material, in particular plastics material and to then provide it with a metallised, i.e. electrically conductive surface. As can also be seen from Fig. 1, the window-like recess 13a provided in the reflector plane of the reflector frame 11, in other words at the level of the reflector face 13, is substantially square in plan view. In this case, this window-like square configuration is divided into four part openings 13'a, namely by holding webs 131 which in each case extend from the base 121 of the carrying device and/or balancing device 21 centrally and transversely, i.e. in particular perpendicularly to the side limitations of the window cut-out and are cast during the casting process of the antenna arrangement together with the radiator arrangement and the reflector frame 11. The carrying device and/or balancing device 21 and therefore the entire radiator arrangement 3 is connected to the reflector frame 11 and therefore held by this total of four holding webs 131. The width of the holding webs 131 corresponds to the slot width of the slots 123 in the carrying device and/or balancing device 21, via which the dipole or radiator halves 3a located at the top are held. The thickness of the holding webs 131 can be selected as desired. Thus, the thickness of the holding webs 131 may, for example, correspond to the thickness of the coupling faces 13 or else to the thickness of the base 121 of the carrying device and/or balancing device 21, i.e. the carrying device 21. In the embodiment shown, the slots 123 reach approximately to the surface of the coupling faces 13 or the surface of the holding webs 131 but may also end thereabove. The reflector frame 11 is preferably produced together with the entire radiator arrangement 3 from an electrically conductive material, for example from a metal cast part (aluminium, but also other materials may be considered for this). This may also be a plastics material part which is then metallised, in other words covered with a metallic conductive surface. In particular when producing the reflector frame 11 from metal, other production methods may be considered, for example production of the reflector frame by deep drawing, milling, or the like. In other words, the antenna arrangement with the reflector arrangement 3 and the reflector or reflector frame may also be produced by other production methods as a common part, for example by milling, optionally by deep drawing etc. Frequently, a so-called "primary forming method" is referred to here. A configuration of the antenna arrangement with the above-mentioned holding webs 131 and the slots 123 and the described window-like recesses 13'a has the advantage that a casting tool can be used, for example, that has cruciform walls which, once the casting process is complete in the drawing according to Fig. 1, can be removed upwardly perpendicular to the reflector face, whereby the cruciform separating and balancing slots and the inner further recesses 151 (which are required to lay feed cables here) can be removed upwardly, whereas another part of the casting tool can be removed downwardly through the four part window recesses 13'a. Only if at least transverse and/or longitudinal webs were to be dispensed with, could a tool of this type also be removed laterally, i.e. parallel to the coupling face plane 13, so the window-like recesses 13a could then be dispensed with at the level of the coupling faces 13. An antenna arrangement formed in this manner is fully functional per se, once the corresponding cabling, in particular for feeding the radiator arrangement, has been installed. In this case, a uniform, handleable, mechanically rigidly connected overall arrangement consisting of a dipole radiator (a dual-polarized dipole radiator in the embodiment shown) and a reflector frame is formed, in this case, by the antenna arrangement described with the aid of Fig. 1. In contrast to this, this antenna arrangement may also be further completed, namely with an additional ground face producing the overall reflector, which is formed on a substrate. For this purpose, reference is made to the exploded view according to Fig. 2. As emerges, in particular from the exploded view with regard to a preferred development of the invention according to Fig. 2, the antenna arrangement may also comprise a printed circuit board 5 (PCB), which is preferably provided on the side 5a facing the radiator side, the so-called radiator or ground face side 5a, with a preferably all-over electrically conductive ground face 7. The electric components and the conductor paths connecting the electric components are then provided on the opposing conductor path plane 5b (in other words on the lower side of the printed circuit board 5 not shown in more detail with respect to Fig. 1 and 2). The ground face 7 is generally covered with an insulating layer 8 not reproduced in Fig. 2, for example in the form of a plastics material or film layer, a lacquer layer or so-called solder resist lacquer layer etc.. 5 The antenna arrangement described with the aid of Fig. 1 with the radiator arrangement 3 and the reflector frame 11 can be rigidly connected to the printed circuit board 5, specifically by any measures suitable for this. The two parts can be assembled, for example, by fixing a screw to be screwed in from the rear side of the printed circuit board into the lower side, in other words the base 121 of the carrying i device and/or balancing device 21 or by means of other clip-like fastening elements, the carrying device and/or balancing device 21, via which the radiator elements 3a of the dual-polarized radiator 3 are held, being capacitively coupled with the ground face 7 of the printed circuit board 5 located therebelow. The reflector frame 11 could also be connected to the printed circuit board by means of suitable mechanical means. However, the reflector frame 11 is preferably fastened to the upper side of the printed circuit board 5 by means of an adhesive film 9 that adheres on both sides, the adhesive film 9 being provided, in the embodiment shown, with a window-like cut-out 9', the size and positioning of which corresponds or is approximated to the cut-out 13a in the coupling face 13 of the reflector frame 11. The adhesive film may also be continuous, however, in other words be provided without the above-mentioned window-like cut-out 9'. In this case, a corresponding adhesive film 9 provided with an adhesive layer on both sides or another spacer may also be provided on the lower side of the base 121 of the carrying device and/or balancing device 21, so the same spacing ratios and conditions are provided between the lower side of the coupling faces 13 and the lower side of the base 121 with respect to the ground face 7 of the printed circuit board 5 located therebelow and covered with an insulating layer. If the insulating layer 8 on the ground face 7 should also be provided with a window, so the insulting layer 8 is omitted in the region of this window (with it being possible for this region, where the insulating layer 8 is omitted on the ground face, to be comparable with the size and/or arrangement of the other window 9' with regard to the double-sided adhesive device 9 and/or the recess 13a in the reflector face 13), the ground face 7 would in this region lie "bare". In this case, the base 121, in other words the lower side of the carrying device and/or balancing device 21, could also be galvanically contacted by the ground face 7. In the board, bores and axial bores flush therewith are configured in the base 121 of the carrying device and/or balancing device 21 of the radiator arrangements in order to guide an inner conductor being used for feeding upwardly from the rear side of the printed circuit board here, in each case, and to couple it galvanically via a bridge portion with the respective diagonally opposing second half 3a of the radiator device 3 located at the top or, to couple it inductively, as described in WO 2005/060049 A1, for example. Reference is therefore also made to this extent, with regard to the mode of functioning, to the above-mentioned prior publication or to the Figs. 5 and 6 described later. To ensure a rigid connection between the reflector face 13, in other words a rigid connection between the reflector frame 11, on the one hand, and the lower side of the base 121 of the radiator arrangement 3, on the other hand, with the printed circuit board, all conceivable connection methods may be considered. Thus, for example, an adhesive compound may be applied to the upper side of the printed circuit board (in other words the ground face or the insulating layer 9 covering the ground face) and/or to the lower side of the coupling face 13. However, clip-like parts which engage in one another and produce a catch mechanism when attached are also possible. However, the above-mentioned adhesive tape 9 adhering on both sides, ensuring a rigidly predetermined spacing between the coupling face 13 and the ground face 7 and simultaneously producing a mechanically rigid connection, is preferred. The reflector frame 11 with the printed circuit board 5 is a rigidly connected self- supporting unit owing to a connection of this type. Owing to the structure described, a capacitive coupling, which also ensures the desired capacitive coupling of the ground face for the longitudinal and/or transverse webs 15, 17, is produced by the capacitive coupling of the reflector face 13, which is therefore sometimes also called a coupling face 13', and of the ground face 7 located therebelow on the printed circuit board 5. With the aid of Fig. 3, only one extension is reproduced such that the corresponding antenna arrangement may also comprise a plurality of radiator arrangements 3 seated next to one another or above one another in the mounting direction, an antenna arrangement of this type being erected with the plurality of radiators generally in the vertical direction, so the plurality of radiator arrangements are arranged spaced apart one above the other in a vertical plane. The reflector frame may, in this case, comprise a number of reflector fields 25 corresponding to the number of radiator arrangements. The size of the antenna arrangement can thus be extended as desired. In this case, the adhesive tape 9 which adheres on the two sides is preferably configured so as to be a corresponding length and provided with three recesses 9' which correspond to the three recesses or windows 13a with the respective four part windows 13'a in the three reflector fields 25 of the reflector frame 11. This radiator arrangement may also be additionally fixed through the bore 26 incorporated in the printed circuit board (see Fig. 2 or 4), similarly to in the embodiment according to Fig. 3, from below by screwing a screw into the base of the carrying device and/or balancing device of the radiator device 13, preferably using an electrically non-conductive screw, above all when the base of the carrying device and/or balancing device of the radiator device 3 is to be capacitively coupled to the ground face 7 of the printed circuit board 5. However, a film adhering on both sides comparable with the adhesive tape 9 adhering on both sides is preferably also provided on the lower side of the base 121, so the lower side of the base 121 and the lower side of the coupling faces 13 are seated at the same spacing level with respect to the upper side of the printed circuit board 5 located therebelow. With the aid of Figs. 5 and 6, it is only indicated by a schematic section through a corresponding radiator arrangement how a feed of a dual-polarized radiator or, in a similar manner, also of a singly-polarized radiator 3 can take place. The feed generally takes place by means of a coaxial cable which extends from the lower side of the reflector through an axial bore 103 leading in the carrying device or balancing device 21 to the plane of the actual dipole and/or radiator halves 3a. At the upper end of this axial bore at the level of the dipole and/or radiator halves 3a, the coaxial cable is then stripped, so the outer conductor, which is insulated in the axial bore 103 relative to the carrying and/or balancing device 21, is exposed and is then electrically/galvanically connected in the upper region, for example, by means of a solder 201 to the inner end of an associated dipole or radiator half 3a. Substantially, only the inner conductor 101b is drawn in here in Fig. 5 in the drawings. The coaxial cable would thus be passed upwardly from below through the axial bore 103, the outer conductor, as mentioned, then being electrically/galvanically connected to the associated dipole or radiator half 3a at the upper end of the carrying device 21 via the solder 201. Up to this point, the outer conductor is insulated relative to the carrying device 21. Alternatively or preferably, however, a coaxial feed cable would be connected in such a way that the outer conductor is held at the lower end of the bore 103, for example, on a solder point 201' and the inner conductor 101b is held only by an insulator and guided upwardly separately in the bore 103. The bore in the carrying device thus acts as an outer conductor which surrounds the inner conductor 101b, so a coaxial feed line is virtually formed as a result, via which the dipole and/or radiator halves which are electrically/galvanically conductively connected to the carrying device, generally as a common component, are fed. If the one dipole half (which is not fed by the inner conductor) is not fed by an electrical/galvanic coupling, for example in the region of the bore of the carrying device, but, for example, by soldering on an outer conductor of a coaxial cable, the corresponding feed may also be brought about capacitively, for example by a capacitive coupling between the base of the carrying device and the ground c reflector face. Generally, the associated feed line, usually the outer conductor of coaxial cable, is thus connected in a region below the carrying device, which i preferably located, with a plan view perpendicular to the reflector, in that regioi i below the dipole or radiator half which is fed thereby. The inner conductor 101b generally connected to the inner conductor of a coaxia cable, is generally angled approximately at the level of the dipole and/or radiatoi halves 3a by 90° or approximately 90° and leads to the adjacent inner end of the associated second dipole and/or radiator half 3a and is generally contacted there electrically by means of a solder 203. In the case of a dual-polarized radiator, the feed of the dipole and/or radiator halves 3a located offset with respect to one another by 90° takes place accordingly, the second inner conductor extending crosswise with respect to the first inner conductor 101b being arranged on another plane, so the two inner conductors do not touch in the middle but are guided past one another. In a singly-polarized radiator with only one polarization plane, only one feed conductor also designated an inner conductor is required. In the embodiment according to Fig. 6, it is shown that the end 101b' of the inner conductor 101b ends freely in a further axial bore 103, this further axial bore 103 being provided in the carrying device and/or balancing device 21. In this case, the freely ending end portion of the inner conductor 101b is guided downwardly over a certain axial length in this further bore 103 and thus held via an insulator 203 in the bore 103 (similarly to the corresponding insulator 203 for fixing the inner conductor 101b in the other axial bore 103), so a capacitive or serial coupling is produced here with regard to the second dipole and/or radiator half 3a'. Other feeds are also possible. It is mentioned only for the sake of completeness that it can, for example, also be seen from Figs. 5 and 6 that the slots 23 extend here to the lower plane or base 121 of the carrying and/or balancing device 21. The level of this carrying and/or balancing device 21 or the slots 123 should preferably lie in a range of about 1/8 to 3/8 of a wavelength from the relevant operating frequency band to be transmitted or received; the level should preferably thus be 1/8 to 3/8 based on the medium wavelength A of the frequency band to be transmitted or received, in other words preferably about 1/4 A. In general, therefore, the radiator level relative to the reflector, in other words relative to the ground or reflector face should not fall below a value of A/10, with there basically being no upward restriction, so the radiator level could even be any multiple of A. The slots 123 can then be adapted accordingly with respect to their length. Claims 1. Antenna arrangement having the following features: - comprising at least one dipole-shaped radiator arrangement (3), - the dipole-shaped radiator arrangement (3) comprises a carrying device (21) and associated dipole or radiator halves (3a), - with a reflector arrangement (1), which has an electrically conductive reflector face (13), and - the reflector arrangement (1) comprises a reflector, a part reflector or a reflector frame (11), characterised by the following further features: - the dipole-shaped radiator arrangement (3) with the associated carrying device (21) and the associated dipole or radiator halves (3a) and the reflector arrangement (1) form a common part. - the material of this common part is electrically conductive or is provided with an electrically conductive surface or surface layer if it consists of a dielectric material, the reflector arrangement (1) has a recess (13a), in the region of which, transversely and, in particular, perpendicularly to the plane of the reflector arrangement (1), the carrying device (21) of the dual-polarized radiator arrangement (3) extends, and - the carrying device (21) is mechanically rigidly connected with at least two holding webs (131) arranged offset in the peripheral direction to the reflector arrangement (1) surrounding the recess (13 a). 2. Antenna arrangement according to Claim 1, characterised in that the carrying device (21) is mechanically rigidly connected at its base (121) with at least both and preferably with at least four holding webs (131) arranged offset in the peripheral direction to the reflector arrangement (1) surrounding the recess (13a). 3. Antenna arrangement according to Claim 1 or 2, characterised in that the dipole-shaped radiator arrangement (3) with the associated carrying device (21) and the associated dipole and/or radiator halves (3a) and the reflector or the part reflector or the reflector frame (11) are formed from a common cast part, a common deep drawn part, a common stamped part or a common milled part, or comprises a part of this type, in other words preferably a common part formed by the so-called primary forming method. 4. Antenna arrangement according to Claim 1 or 2, characterised in that the radiator arrangement (3) consists of a singly-polarized dipole radiator or of a dual- polarized radiator arrangement (3). 5. Antenna arrangement according to any one of Claims 1 to 2 or 4, characterised in that the dual-polarized radiator arrangement (3) consists of a cross dipole, a dipole square, or a vector dipole. 6. Antenna arrangement according to any one of Claims 1 to 5, characterised in that the holding webs (131) have a thickness which corresponds to the material thickness of the reflector arrangement or of the reflector frame (11) and/or the base (121) of the carrying device (21). 7. Antenna arrangement according to any one of Claims 1 to 6, characterised in that balancing slots (123) extending perpendicularly to the reflector plane are introduced in the singly or dual-polarized radiator arrangement (3) and end close to or at the level of the holding webs (131). 8. Antenna arrangement according to Claim 7, characterised in that the holding webs (131) are provided at the level of the base (121) of the carrying device (121) of the dual-polarized radiator arrangement (3). 9. Antenna arrangement according to Claim 7 or 8, characterised in that, in an axial plan view of the dual-polarized radiator arrangement (3), the holding webs (131) are arranged in a linear extension of the at least one carrying device and/or balancing device slot (123). 10. Antenna arrangement according to any one of Claims 1 to 9, characterised by the following further features - the reflector arrangement (1) or the reflector frame (11) also comprises a printed circuit board (5), - the printed circuit board (5) comprises a printed circuit board side (5a), on which an electrically conductive ground face (7) is provided, - the reflector arrangement (1) or the reflector frame (11) comprises a reflector face (13) which extends parallel to the printed circuit board (5) and/or the ground face (7) and is used as a coupling face (13'), - the coupling face (13') has the recess (13a), via which the ground face (7) located therebelow and/or the printed circuit board (5) and an optionally provided insulating intermediate layer is not covered, and - the at least one radiator arrangement (3) is positioned and/or held on the printed circuit board (5) in the region of the recess (13a). 11. Antenna arrangement according to any one of Claims 1 to 9, characterised in that the reflector arrangement (1) or the reflector frame (11) in addition to the reflector face (13) also comprises at least one longitudinal web (15) and/or at least one transverse web (17) which rises transverse to the plane of the reflector face (13) and is a component of the common part, in particular cast part, comprising the radiator arrangement (3) and the reflector arrangement (1) or the reflector frame (11). 12. Antenna arrangement according to Claim 11, characterised in that the reflector arrangement (1) or the reflector frame (11) comprises at least two longitudinal webs (15) and/or at least two transverse webs (17). 13. Antenna arrangement according to Claim 11 or 12, characterised in that the reflector arrangement (1) or the reflector frame (11) is connected to the printed circuit board (5) by means of mechanical connection means. 14. Antenna arrangement according to Claim 13, characterised in that the reflector arrangement (1) or the reflector frame (11) is rigidly connected to the printed circuit board (5) by means of a clip and/or latching and/or snap device. 15. Antenna arrangement according to any one of Claims 11 to 14, characterised in that the reflector arrangement (1) or the reflector frame (11) is bonded to the printed circuit board (5). 16. Antenna arrangement according to any one of Claims 11 to 15, characterised in that the reflector arrangement (1) or the reflector frame (11) is rigidly connected to the printed circuit board (5) using an adhesive tape (9) adhering on both sides or an adhesive film (9) adhering on both sides. 17. Antenna arrangement according to Claim 16, characterised in that the adhesive tape (9) or the adhesive film (9) has a recess, the size and/or position of which corresponds at least to the size and/or the position of a corresponding recess (13a). 18. Antenna arrangement according to Claim 17, characterised in that the adhesive tape (9) or the adhesive film (9) is provided between the lower side of the reflector face (13) and the ground face (7) or an insulating layer covering the ground face (7) and therebeyond in the region of the recess (13a) in the reflector face (13), preferably also in the region between the base (121) of the carrying device (21) of the radiator arrangement (3) and the ground face (7) on the printed circuit board (5). 19. Antenna arrangement according to Claim '18, characterised in that a double- sided adhesive tape (9) or a double-sided adhesive film (9) is also provided below the base (121) of the carrying device (21) of the radiator arrangement (3), via which the base (121) of the carrying device (21) is mechanically connected to the printed circuit board (5). 20. Antenna arrangement according to any one of Claims 1 to 19, characterised in that a plurality of radiator arrangements (3) are provided which are positioned at a spacing with respect to one another preferably successively in a mounting direction. 21. Antenna arrangement according to any one of Claims 1 to 20, characterised in that one radiator arrangement (3) is arranged per recess (13a) in a coupling face (15). 22. Antenna arrangement according to any one of Claims 11 to 19, characterised in that a transverse web (17) is provided between two radiator arrangements (3). An improved antenna arrangement is characterized by the following features: the antenna arrangement comprises at least one dipolar emitter arrangement (3) with the associated supporting device and/or balancing (21) and the associated dipole and/or emitter halves (3a) and the reflector or the reflector element or the reflector frame (11), which are formed from a common part, and the material of this common part is electrically conductive or is provided with an electrically conductive surface or surface layer if it comprises a dielectric material.

Full Text

Antenna arrangement, in particular for a mobile radio base station
The invention relates to an antenna arrangement, in particular for a mobile radio
base station, according to the preamble of Claim 1.
Antenna arrangements, in particular for a mobile radio base station, are known, for
example, from WO 00/039894 A1. In this prior publication, a vertically alignable
reflector is described, on the two outer lateral limitations of which running vertically
and parallel with respect to one another, a lateral web projecting in the radiation
direction and therefore transverse to the reflector plane is configured, in each case.
Arranged one above each other in the vertical direction are a plurality of dipole
arrangements which radiate in two polarization planes aligned perpendicularly with
respect to one another and which consist of so-called vector dipoles. These vector
dlpoles are structurally similarly designed to dipole squares. The design and the
feed are, however, such that, despite the horizontally or vertically aligned dipoles,
the dipole arrangement as a whole acts as an X-polarized antenna, in which the two
polarization planes which are perpendicular with respect to one another are aligned
at an angle of +45° or -45° with respect to the vertical or the horizontal.
It can be inferred from the generic DE 103 596 22 A1, that the dual-polarized
radiators, which are seated in front of a reflector, can be provided with a capacitive
outer conductor coupling. Introduced in each half of the two balancing devices
located rotated about 90° with respect to one another are therefore axial bores
extending perpendicularly to the reflector plane, in the region of which, rod-shaped
coupling elements 21 galvanically connected to the reflector are seated and are
surrounded by cylindrical insulators, on which the pairs of balancing halves, which
are provided with the total of four axial bores and arranged rotated about 90° with
respect to one another, of the dual-polarized radiator arrangement can be mounted.

An inner conductor for feeding the two polarizations of the radiator arrangement
located perpendicularly with respect to one another can be laid inside two rod-
shaped coupling elements from the rear side of the reflector.
From this prior publication it can also be inferred that the dipoie-shaped radiator
arrangement, with the associated carrying device and/or balancing device and the
associated dipole and/or radiator halves, forms a common part which is electrically
conductive, or is provided with an electrically conductive surface or surface layer.
The radiator arrangement formed in this manner is then placed by means of the
outer conductor coupling mentioned on an associated reflector arrangement,
according to the above-mentioned DE 103 59 622 A1.
A radiator arrangement is also known from EP 1 588 454 B1. According to this prior
publication, the use, for example, of a vertically alignable antenna arrangement with
a reflector is described, on the vertical lateral limiting lines of which two lateral webs
projecting transversely and, in particular, perpendicularly to the reflector plane in the
direction of radiation are configured, between which the dual-polarized radiators
arranged in the vertical direction above one another are seated. According to this
prior publication, the base of the balancing device of the associated radiator
arrangement is also capacitively connected (in other words without any
electric/galvanic contact) to the reflectors, or coupled thereto, with the interposition of
a base, for which purpose the reflector has a recess, in which the non-conductive
base engages and is anchored and in turn holds the balancing device or the base of
the balancing device of the dual-polarized radiator. The inner conductor can be laid
here as described in the above-mentioned prior art.
Finally, antenna arrangements with reflectors are known, on the longitudinal lateral
regions of which, in other words on the longitudinal or vertical lateral regions thereof,
webs projecting forward from the reflector plane are provided, as can be inferred, for
example, from the prior publications WO 99/62138 A1, US 5,710,569 A or EP 0 916
169 B1.

In an alternative embodiment according to this prior publication, it is shown that,
instead of an electrically conductive reflector, generally in the form of a metal sheet,
a printed circuit board can also be used, on which the reflector is constructed. In this
case, the electrically conductive ground face is preferably omitted on one side of the
printed circuit board or the base is also provided with insulation in this region.
It is to be inferred as known from WO 2004/091041 A1 that a reflector for a radiator
arrangement is not constructed, for example, from a plurality of sheet-metal parts,
but may consist of a cast part, a deep drawn part, a stamped part or a milled part. In
this case, the reflector produced in this manner may also be configured at least with
an additionally integrated functional part, which is integrally connected to the
reflector. This functional part may be one or more housing parts for HF components.
It is described how, for example, a housing attachment is produced integrally with
the reflector on the reflector rear, in which housing attachment feed lines for the
feeding of radiators arranged on the front can be accommodated.
It is an object of the invention, proceeding from the generic prior art according to DE
103 59 622 A1, to provide an antenna arrangement, in which the risk of the
occurrence of intermodulation products is as low as possible. In this case, the
production-related outlay for assembly is also to be as low as possible.
The object is achieved according to the invention according to the features disclosed
in Claim 1. Advantageous configurations of the invention are given in the sub-claims.
The invention provides an improved antenna arrangement which can be produced
simply and with high precision with exactly predetermined radiation properties,
avoiding potential sources of interference, such as, for example, undesired
intermodulations.
The antenna arrangement according to the invention is distinguished in that the at
least one radiator arrangement and an associated reflector or at least an associated
reflector frame are produced together, in particular are cast, in other words consist of

a common part or, for example, cast part. The entire antenna arrangement
preferably comprises at least one radiator arrangement and the reflector or part
reflector or a reflector frame which are formed from a common diecast part, in
particular a metal diecast part, such as, for example, an aluminium cast part. It is
also possible to cast the entire arrangement from a dielectric material, in particular
plastics material, and then to provide it with a metallised, i.e. electrically conductive
surface.
In particular when the antenna arrangement is produced from metal with regard to its
important parts, in other words, for example, with the mentioned radiator
arrangement (in other words, for example, the dipole and/or radiator halves and the
associated carrying or balancing device and the associated reflector or a part
reflector), other production methods can also be considered, for example production
by deep drawing, milling or the like. In other words, the important parts of the
antenna arrangement of this type, comprising the radiator arrangement with the
associated carrying device and/or balancing device and the associated reflector or
associated reflector part, consist of a part produced together which can also be
called one-part or integral. Frequently a so-called "primary forming method" is also
referred to for parts produced in this manner.
In this case, the reflector arrangement has a recess, within which the carrying device
of the radiator arrangement is provided, which is preferably mechanically rigidly
connected at its base by means of at least two, and preferably by means of at least
four, holding or support webs arranged offset in the peripheral direction to the
reflector arrangement surrounding the recess.
In the framework of an antenna arrangement of this type according to the invention,
the reflector arrangement may also at least comprise a longitudinal and/or transverse
web.
If the antenna arrangement according to the invention is used, in particular, as a
base station for a mobile radio antenna, it generally comprises, when erected in a

vertical orientation, a plurality of radiator devices arranged one above the other at a
spacing, so a uniformly cast antenna of this type according to the invention with a
plurality of radiators and/or radiator arrangements and the cast reflector or reflector
frame comprises two lateral longitudinal webs extending in the vertical direction
(which may be arranged located at a lateral edge or located offset thereto rather
toward the centre). Furthermore, the antenna arrangement according to the invention
may, however, also comprise an upper and a lower transverse web. If a plurality of
radiator arrangements are arranged offset with respect to one another in the
mounting direction, transverse webs may also be configured running between them
in each case which are also cast integrally with the entire antenna arrangement. An
entire antenna arrangement of this type may thus be produced as a uniform cast part
which can be handled.
In a preferred embodiment, the radiator arrangement cast with the reflector or the
reflector frame may also consist of dual-polarized radiator arrangements which
radiate in two polarization planes which are perpendicular with respect to one
another. In this case, cruciform dipole radiators could be used but also so-called
vector dipoles, as are basically known from WO 00/039894 A1.
In a preferred embodiment, vector dipoles are used, as known from WO
2004/100315 A1, in which namely the radiator halves belonging to each polarization
plane, arranged diagonally with respect to one another and, viewed alone in plan
view, formed so as to be square or similar to a square, can be configured with a
closed part face or even closed over the whole face.
In a preferred embodiment, it is also provided here that in the region of these dipole
or radiator halves, corresponding recesses are provided in the region of the reflector
plane. Namely, in the region of the slots separating the individual dipole halves or
radiator halves from one another, which pass into recesses of the balancing device
or carrying device carrying the radiator device, holding webs or holding connections
may preferably be provided located in the reflector plane, via which the radiator
arrangement seated in the centre is held by the reflector frame surrounding it.

The embodiment mentioned last also offers the advantage that a corresponding tool
can also be used which, during the casting process, has an upper face limiting the
cavity, which forms the lower face of the respective dipole half or radiator half. This
tool can then be withdrawn downwardly, in other words with the transverse
component to the reflector plane through the corresponding window-like recess, the
entire radiator arrangement being held by the holding webs mentioned or holding
connection portions, via which the radiator arrangement is connected with the
reflector surrounding it.
In particular when a reflector is formed without longitudinal and/or transverse webs,
there would also be the possibility of removing tools laterally with a withdrawal
movement parallel to the reflector plane during demolding, so the reflector plane
could then also be closed.
In a reflector formed in this manner, the base of the balancing device of the radiator
arrangement may be connected galvanically, i.e. in terms of direct current, to the
reflector plane.
The dual-polarized radiator arrangement and the associated reflector frame may be
formed as a whole from an electrically conductive material. The radiator
arrangement and the reflector frame may, however, also be formed from a plastics
material or in general dielectric material, i.e. cast, the corresponding parts then being
provided with an electrically conductive surface layer. In this case, it is not
necessary, however, for example, for the above-mentioned holding webs or holding
connections between the carrying device and the radiator device and the reflector
frame to also be electrically conductive. In other words, the radiator device and, in
particular, its carrying device and/or the balancing device and the reflector frame
may be galvanically separated from one another.
The antenna arrangement according to the invention with a reflector arrangement
preferably comprising a plurality of radiators and a reflector frame with longitudinal
and/or transverse webs may, however, also be capacitively coupled to a ground face

or capacitively coupled to a ground face arranged below the so-called reflector
frame.
It has previously been conventional in the prior art, to generally use reflectors made
of a metal sheet, on which the radiator modules are constructed. Owing to the
radiators arranged between the lateral outer limitation of the reflector plane and the
radiators generally arranged rather to the centre, it was possible to configure at a
suitable point the longitudinal lateral limitations projecting transversely to the reflector
plane in the form of longitudinal webs which could be adjusted, for example, between
a perpendicular alignment with respect to the reflector plane through to an angled
alignment in such a way that a desired radiation shaping was possible.
If, on the other hand, it was desired to use reflectors in the form of printed circuit
boards (so-called PCBs), which were provided on one printed circuit board side with
an electrically conductive ground face, this required that the webs required for the
radiation formation had to be connected to the ground face of the printed circuit
board by means of screw or solder connections in order to produce a clear galvanic
connection here. This assembly work was, however, not only laborious but
constantly caused potential intermodulation sources of interference.
In contrast, it is now proposed, proceeding from a printed circuit board which is
preferably provided on the radiator side with an electrically conductive ground face
and an insulating layer located thereabove, building on this, to position the reflector
frame with the radiator arrangement connected thereto, which reflector frame is
provided with a coupling face parallel to the ground face of the printed circuit board,
longitudinal and/or transverse webs required for the pattern formation then being
configured in turn on this coupling face. In other words, a capacitive reflector frame
coupling is preferably proposed which makes it possible to capacitively couple the
longitudinal and/or transverse webs required for the pattern formation to a ground
face seated on a printed circuit board.

In the scope of the invention, a capacitive coupling of the reflector frame is thus
preferably provided on a printed circuit board without a galvanic connection between
the reflector and printed circuit board ground face. The invention is distinguished by
a stable intermodulation-free connection. Above all, a precisely defined coupling
between the ground face of the printed circuit board and the reflector frame can also
be ensured in the scope of the invention by a clearly defined spacing and/or by a
clearly definable size of the coupling faces.
Finally, a rapid and uncomplicated assembly is also possible in the scope of the
invention, so fault sources are reduced and, above all, solder points on the reflector
are omitted. If the uniformly cast antenna arrangement according to the invention
consisting of the reflector frame and radiator module or radiator modules is used as
the antenna arrangement, further assembly steps for connection to an additional
printed circuit board, for example one provided with a ground face, would no longer
be necessary at all. If a printed circuit board of this type provided with a ground face
is used to produce a capacitive outer conductor coupling, a simple connection is
possible, for example, by using an adhesive strip which adheres on both sides, in
order to produce the reflector frame with the printed circuit board located therebelow
and provided with a ground face with the formation of the total reflector with the
capacitive outer conductor coupling.
The completely assembled unit, consisting of the reflector frame and the radiator
arrangement connected thereto and the printed circuit board, forms a self-supporting
unit. The reflector frame and the base of the radiator arrangement or the radiator
arrangements may be fixed on the board with all suitable means, for example by
means of clips, by means of an adhesive tape which adheres on both sides,
separate adhesive etc.
The ground face is preferably provided on the printed circuit board by the producer
with an insulating layer allowing a galvanic separation with respect to the reflector
frame, for example in the form of a lacquer, in particular solder resist lacquer, a film
or another plastics material layer. If the reflector frame is glued on by means of an

adhesive tape adhering on both sides, an insulation and therefore a galvanic
separation is through this produced between the electrically conductive reflector
frame, on the one hand, and ground face on the printed circuit board, on the other
hand, so a separate insulating layer on the ground face could even be dispensed
with.
Further advantages, details and features of the invention emerge below from the
embodiments described in the figures, in which, in detail:
Fig. 1: shows a schematic three-dimensional view of a basic type of an
antenna according to the invention with a dual-polarized radiator
arrangement;
Fig. 2: shows an exploded view of the embodiment of Fig. 1;
Fig. 3: shows a corresponding schematic three-dimensional view of an
antenna arrangement according to the invention with three dual-
polarized radiators arranged offset with respect to one another;
Fig. 4: shows an exploded view of the embodiment of Fig. 3;
Fig. 5: shows a schematic cross sectional view through a dual-polarized
radiator with a part of the reflector arrangement to clarify the feeding of
the radiator; and
Fig. 6: shows an embodiment modified with respect to Fig. 5.
Fig. 1 shows the basic type of an antenna arrangement according to the invention as
can be used, for example, for a mobile radio base station. The antenna arrangement
comprises a reflector arrangement 1, in front of which a dual-polarized radiator or a
dual-polarized radiator arrangement 3 is provided. In the embodiment shown, this is
a vector dipole, which radiates in two polarization planes P which are perpendicular

with respect to one another and which are perpendicular to the reflector plane and
run virtually diagonally through the corners of the radiator arrangement which is
square in plan view. With regard to the construction and mode of functioning of such
a radiator type, reference is made, for example, to WO 00/039894 A1.
However, any radiator or radiator type can basically be used in the scope of the
invention, in particular dipole radiators and/or patch radiators, such as are known, for
example, from the prior publications DE 197 22 742 A1, DE 196 27 015 A1, US
5,710,569 A, WO 00/039894 A1 or DE 101 50 150 A1.
It can be inferred from the view according to Fig. 1 that the antenna arrangement has
a so-called reflector or reflector frame 11. This reflector or reflector frame 11
comprises a reflector face 13 which will sometimes also be called a coupling face 13'
below in view of an embodiment of the invention still to be described below. This
reflector face 13 is provided, in the embodiment shown, with longitudinal webs 15
extending perpendicularly with respect to the reflector face 13 and transverse webs
17 which are configured and/or provided, in the embodiment shown, on the outer
limitations of the reflector frame 11 but may also be located offset further inward
relative to the outer limitations of the reflector frame 11, so a portion of the reflector
projecting outwardly over the webs 15, 17 remains. These longitudinal and
transverse webs 15, 17 are also connected to one another at the corner regions 19.
The longitudinal and transverse webs shown do not absolutely necessarily have to
be aligned perpendicularly to the reflector face 13. These webs may also partially
extend in an alignment to the reflector face differing from a 90° angle, for example
diverging in the radiation direction or running toward one another or may be more
inclined to the left or the right etc. To this extent, limitations basically do not exist.
It can also be seen from the view according to Fig. 1 that the reflector face 13 is
provided with a recess 13a which, in the embodiment shown, has dimensions in the
longitudinal and transverse direction that are as large as the dual-polarized radiator 3
with regard to its longitudinal and/or transverse extension. The cut-out face with the
formation of the corresponding recess 13a may be shaped in any way here, i.e. it

may differ from the outer contour of the radiator and even comprise curved edge
courses, so the recess 13a thus formed is defined by curved section courses or any
other limitation lines.
It can also be seen from the view according to Fig. 1 that the two balancing devices
21 arranged rotated about 90° with respect to one another (one balancing device for
each polarization of the radiator device 3) have a base 121 located at the bottom in
Fig. 1 connecting them together, from which upwardly extending so-called balancing
slots 123 are provided. To this extent, a carrying device 21 for the dipoles or
radiators or dipole or radiator halves etc. is primarily also referred to below, the
carrying device comprising corresponding slots 123 extending axially from the top in
the direction of the base 121.
The antenna arrangement according to the invention is distinguished according to
one embodiment in that the at least one radiator arrangement and an associated
reflector or at least one associated reflector frame are cast together, in other words
consist of a common cast part. The entire antenna arrangement preferably
comprises at least one radiator arrangement and the reflector or the part reflector or
a reflector frame which are formed from a common cast part, in particular a diecast
part, such as, for example, a metal diecast part or an aluminium cast part. It is also
possible to cast the entire arrangement from a dielectric material, in particular
plastics material and to then provide it with a metallised, i.e. electrically conductive
surface.
As can also be seen from Fig. 1, the window-like recess 13a provided in the reflector
plane of the reflector frame 11, in other words at the level of the reflector face 13, is
substantially square in plan view. In this case, this window-like square configuration
is divided into four part openings 13'a, namely by holding webs 131 which in each
case extend from the base 121 of the carrying device and/or balancing device 21
centrally and transversely, i.e. in particular perpendicularly to the side limitations of
the window cut-out and are cast during the casting process of the antenna
arrangement together with the radiator arrangement and the reflector frame 11. The

carrying device and/or balancing device 21 and therefore the entire radiator
arrangement 3 is connected to the reflector frame 11 and therefore held by this total
of four holding webs 131.
The width of the holding webs 131 corresponds to the slot width of the slots 123 in
the carrying device and/or balancing device 21, via which the dipole or radiator
halves 3a located at the top are held. The thickness of the holding webs 131 can be
selected as desired. Thus, the thickness of the holding webs 131 may, for example,
correspond to the thickness of the coupling faces 13 or else to the thickness of the
base 121 of the carrying device and/or balancing device 21, i.e. the carrying device
21.
In the embodiment shown, the slots 123 reach approximately to the surface of the
coupling faces 13 or the surface of the holding webs 131 but may also end
thereabove.
The reflector frame 11 is preferably produced together with the entire radiator
arrangement 3 from an electrically conductive material, for example from a metal
cast part (aluminium, but also other materials may be considered for this). This may
also be a plastics material part which is then metallised, in other words covered with
a metallic conductive surface. In particular when producing the reflector frame 11
from metal, other production methods may be considered, for example production of
the reflector frame by deep drawing, milling, or the like. In other words, the antenna
arrangement with the reflector arrangement 3 and the reflector or reflector frame
may also be produced by other production methods as a common part, for example
by milling, optionally by deep drawing etc. Frequently, a so-called "primary forming
method" is referred to here.
A configuration of the antenna arrangement with the above-mentioned holding webs
131 and the slots 123 and the described window-like recesses 13'a has the
advantage that a casting tool can be used, for example, that has cruciform walls
which, once the casting process is complete in the drawing according to Fig. 1, can

be removed upwardly perpendicular to the reflector face, whereby the cruciform
separating and balancing slots and the inner further recesses 151 (which are
required to lay feed cables here) can be removed upwardly, whereas another part of
the casting tool can be removed downwardly through the four part window recesses
13'a. Only if at least transverse and/or longitudinal webs were to be dispensed with,
could a tool of this type also be removed laterally, i.e. parallel to the coupling face
plane 13, so the window-like recesses 13a could then be dispensed with at the level
of the coupling faces 13.
An antenna arrangement formed in this manner is fully functional per se, once the
corresponding cabling, in particular for feeding the radiator arrangement, has been
installed. In this case, a uniform, handleable, mechanically rigidly connected overall
arrangement consisting of a dipole radiator (a dual-polarized dipole radiator in the
embodiment shown) and a reflector frame is formed, in this case, by the antenna
arrangement described with the aid of Fig. 1.
In contrast to this, this antenna arrangement may also be further completed, namely
with an additional ground face producing the overall reflector, which is formed on a
substrate.
For this purpose, reference is made to the exploded view according to Fig. 2.
As emerges, in particular from the exploded view with regard to a preferred
development of the invention according to Fig. 2, the antenna arrangement may also
comprise a printed circuit board 5 (PCB), which is preferably provided on the side 5a
facing the radiator side, the so-called radiator or ground face side 5a, with a
preferably all-over electrically conductive ground face 7. The electric components
and the conductor paths connecting the electric components are then provided on
the opposing conductor path plane 5b (in other words on the lower side of the printed
circuit board 5 not shown in more detail with respect to Fig. 1 and 2).

The ground face 7 is generally covered with an insulating layer 8 not reproduced in
Fig. 2, for example in the form of a plastics material or film layer, a lacquer layer or
so-called solder resist lacquer layer etc..
5 The antenna arrangement described with the aid of Fig. 1 with the radiator
arrangement 3 and the reflector frame 11 can be rigidly connected to the printed
circuit board 5, specifically by any measures suitable for this. The two parts can be
assembled, for example, by fixing a screw to be screwed in from the rear side of the
printed circuit board into the lower side, in other words the base 121 of the carrying
i device and/or balancing device 21 or by means of other clip-like fastening elements,
the carrying device and/or balancing device 21, via which the radiator elements 3a of
the dual-polarized radiator 3 are held, being capacitively coupled with the ground
face 7 of the printed circuit board 5 located therebelow.
The reflector frame 11 could also be connected to the printed circuit board by means
of suitable mechanical means. However, the reflector frame 11 is preferably
fastened to the upper side of the printed circuit board 5 by means of an adhesive film
9 that adheres on both sides, the adhesive film 9 being provided, in the embodiment
shown, with a window-like cut-out 9', the size and positioning of which corresponds
or is approximated to the cut-out 13a in the coupling face 13 of the reflector frame
11. The adhesive film may also be continuous, however, in other words be provided
without the above-mentioned window-like cut-out 9'. In this case, a corresponding
adhesive film 9 provided with an adhesive layer on both sides or another spacer may
also be provided on the lower side of the base 121 of the carrying device and/or
balancing device 21, so the same spacing ratios and conditions are provided
between the lower side of the coupling faces 13 and the lower side of the base 121
with respect to the ground face 7 of the printed circuit board 5 located therebelow
and covered with an insulating layer.
If the insulating layer 8 on the ground face 7 should also be provided with a window,
so the insulting layer 8 is omitted in the region of this window (with it being possible
for this region, where the insulating layer 8 is omitted on the ground face, to be

comparable with the size and/or arrangement of the other window 9' with regard to
the double-sided adhesive device 9 and/or the recess 13a in the reflector face 13),
the ground face 7 would in this region lie "bare". In this case, the base 121, in other
words the lower side of the carrying device and/or balancing device 21, could also be
galvanically contacted by the ground face 7. In the board, bores and axial bores
flush therewith are configured in the base 121 of the carrying device and/or
balancing device 21 of the radiator arrangements in order to guide an inner
conductor being used for feeding upwardly from the rear side of the printed circuit
board here, in each case, and to couple it galvanically via a bridge portion with the
respective diagonally opposing second half 3a of the radiator device 3 located at the
top or, to couple it inductively, as described in WO 2005/060049 A1, for example.
Reference is therefore also made to this extent, with regard to the mode of
functioning, to the above-mentioned prior publication or to the Figs. 5 and 6
described later.
To ensure a rigid connection between the reflector face 13, in other words a rigid
connection between the reflector frame 11, on the one hand, and the lower side of
the base 121 of the radiator arrangement 3, on the other hand, with the printed
circuit board, all conceivable connection methods may be considered. Thus, for
example, an adhesive compound may be applied to the upper side of the printed
circuit board (in other words the ground face or the insulating layer 9 covering the
ground face) and/or to the lower side of the coupling face 13. However, clip-like
parts which engage in one another and produce a catch mechanism when attached
are also possible.
However, the above-mentioned adhesive tape 9 adhering on both sides, ensuring a
rigidly predetermined spacing between the coupling face 13 and the ground face 7
and simultaneously producing a mechanically rigid connection, is preferred. The
reflector frame 11 with the printed circuit board 5 is a rigidly connected self-
supporting unit owing to a connection of this type.

Owing to the structure described, a capacitive coupling, which also ensures the
desired capacitive coupling of the ground face for the longitudinal and/or transverse
webs 15, 17, is produced by the capacitive coupling of the reflector face 13, which is
therefore sometimes also called a coupling face 13', and of the ground face 7
located therebelow on the printed circuit board 5.
With the aid of Fig. 3, only one extension is reproduced such that the corresponding
antenna arrangement may also comprise a plurality of radiator arrangements 3
seated next to one another or above one another in the mounting direction, an
antenna arrangement of this type being erected with the plurality of radiators
generally in the vertical direction, so the plurality of radiator arrangements are
arranged spaced apart one above the other in a vertical plane. The reflector frame
may, in this case, comprise a number of reflector fields 25 corresponding to the
number of radiator arrangements. The size of the antenna arrangement can thus be
extended as desired. In this case, the adhesive tape 9 which adheres on the two
sides is preferably configured so as to be a corresponding length and provided with
three recesses 9' which correspond to the three recesses or windows 13a with the
respective four part windows 13'a in the three reflector fields 25 of the reflector frame
11. This radiator arrangement may also be additionally fixed through the bore 26
incorporated in the printed circuit board (see Fig. 2 or 4), similarly to in the
embodiment according to Fig. 3, from below by screwing a screw into the base of the
carrying device and/or balancing device of the radiator device 13, preferably using
an electrically non-conductive screw, above all when the base of the carrying device
and/or balancing device of the radiator device 3 is to be capacitively coupled to the
ground face 7 of the printed circuit board 5. However, a film adhering on both sides
comparable with the adhesive tape 9 adhering on both sides is preferably also
provided on the lower side of the base 121, so the lower side of the base 121 and
the lower side of the coupling faces 13 are seated at the same spacing level with
respect to the upper side of the printed circuit board 5 located therebelow.

With the aid of Figs. 5 and 6, it is only indicated by a schematic section through a
corresponding radiator arrangement how a feed of a dual-polarized radiator or, in a
similar manner, also of a singly-polarized radiator 3 can take place.
The feed generally takes place by means of a coaxial cable which extends from the
lower side of the reflector through an axial bore 103 leading in the carrying device or
balancing device 21 to the plane of the actual dipole and/or radiator halves 3a. At
the upper end of this axial bore at the level of the dipole and/or radiator halves 3a,
the coaxial cable is then stripped, so the outer conductor, which is insulated in the
axial bore 103 relative to the carrying and/or balancing device 21, is exposed and is
then electrically/galvanically connected in the upper region, for example, by means
of a solder 201 to the inner end of an associated dipole or radiator half 3a.
Substantially, only the inner conductor 101b is drawn in here in Fig. 5 in the
drawings. The coaxial cable would thus be passed upwardly from below through the
axial bore 103, the outer conductor, as mentioned, then being
electrically/galvanically connected to the associated dipole or radiator half 3a at the
upper end of the carrying device 21 via the solder 201. Up to this point, the outer
conductor is insulated relative to the carrying device 21.
Alternatively or preferably, however, a coaxial feed cable would be connected in
such a way that the outer conductor is held at the lower end of the bore 103, for
example, on a solder point 201' and the inner conductor 101b is held only by an
insulator and guided upwardly separately in the bore 103. The bore in the carrying
device thus acts as an outer conductor which surrounds the inner conductor 101b,
so a coaxial feed line is virtually formed as a result, via which the dipole and/or
radiator halves which are electrically/galvanically conductively connected to the
carrying device, generally as a common component, are fed.
If the one dipole half (which is not fed by the inner conductor) is not fed by an
electrical/galvanic coupling, for example in the region of the bore of the carrying
device, but, for example, by soldering on an outer conductor of a coaxial cable, the
corresponding feed may also be brought about capacitively, for example by a

capacitive coupling between the base of the carrying device and the ground c
reflector face. Generally, the associated feed line, usually the outer conductor of
coaxial cable, is thus connected in a region below the carrying device, which i
preferably located, with a plan view perpendicular to the reflector, in that regioi
i below the dipole or radiator half which is fed thereby.
The inner conductor 101b generally connected to the inner conductor of a coaxia
cable, is generally angled approximately at the level of the dipole and/or radiatoi
halves 3a by 90° or approximately 90° and leads to the adjacent inner end of the
associated second dipole and/or radiator half 3a and is generally contacted there
electrically by means of a solder 203.
In the case of a dual-polarized radiator, the feed of the dipole and/or radiator halves
3a located offset with respect to one another by 90° takes place accordingly, the
second inner conductor extending crosswise with respect to the first inner conductor
101b being arranged on another plane, so the two inner conductors do not touch in
the middle but are guided past one another.
In a singly-polarized radiator with only one polarization plane, only one feed
conductor also designated an inner conductor is required.
In the embodiment according to Fig. 6, it is shown that the end 101b' of the inner
conductor 101b ends freely in a further axial bore 103, this further axial bore 103
being provided in the carrying device and/or balancing device 21. In this case, the
freely ending end portion of the inner conductor 101b is guided downwardly over a
certain axial length in this further bore 103 and thus held via an insulator 203 in the
bore 103 (similarly to the corresponding insulator 203 for fixing the inner conductor
101b in the other axial bore 103), so a capacitive or serial coupling is produced here
with regard to the second dipole and/or radiator half 3a'.
Other feeds are also possible.

It is mentioned only for the sake of completeness that it can, for example, also be
seen from Figs. 5 and 6 that the slots 23 extend here to the lower plane or base 121
of the carrying and/or balancing device 21. The level of this carrying and/or
balancing device 21 or the slots 123 should preferably lie in a range of about 1/8 to
3/8 of a wavelength from the relevant operating frequency band to be transmitted or
received; the level should preferably thus be 1/8 to 3/8 based on the medium
wavelength A of the frequency band to be transmitted or received, in other words
preferably about 1/4 A. In general, therefore, the radiator level relative to the
reflector, in other words relative to the ground or reflector face should not fall below a
value of A/10, with there basically being no upward restriction, so the radiator level
could even be any multiple of A. The slots 123 can then be adapted accordingly with
respect to their length.

Claims
1. Antenna arrangement having the following features:
- comprising at least one dipole-shaped radiator arrangement (3),
- the dipole-shaped radiator arrangement (3) comprises a carrying device (21)
and associated dipole or radiator halves (3a),
- with a reflector arrangement (1), which has an electrically conductive reflector
face (13), and
- the reflector arrangement (1) comprises a reflector, a part reflector or a
reflector frame (11),
characterised by the following further features:
- the dipole-shaped radiator arrangement (3) with the associated carrying
device (21) and the associated dipole or radiator halves (3a) and the reflector
arrangement (1) form a common part.
- the material of this common part is electrically conductive or is provided with
an electrically conductive surface or surface layer if it consists of a dielectric material,
the reflector arrangement (1) has a recess (13a), in the region of which,
transversely and, in particular, perpendicularly to the plane of the reflector
arrangement (1), the carrying device (21) of the dual-polarized radiator arrangement
(3) extends, and
- the carrying device (21) is mechanically rigidly connected with at least two
holding webs (131) arranged offset in the peripheral direction to the reflector
arrangement (1) surrounding the recess (13 a).
2. Antenna arrangement according to Claim 1, characterised in that the carrying
device (21) is mechanically rigidly connected at its base (121) with at least both and
preferably with at least four holding webs (131) arranged offset in the peripheral
direction to the reflector arrangement (1) surrounding the recess (13a).

3. Antenna arrangement according to Claim 1 or 2, characterised in that the
dipole-shaped radiator arrangement (3) with the associated carrying device (21) and
the associated dipole and/or radiator halves (3a) and the reflector or the part
reflector or the reflector frame (11) are formed from a common cast part, a common
deep drawn part, a common stamped part or a common milled part, or comprises a
part of this type, in other words preferably a common part formed by the so-called
primary forming method.
4. Antenna arrangement according to Claim 1 or 2, characterised in that the
radiator arrangement (3) consists of a singly-polarized dipole radiator or of a dual-
polarized radiator arrangement (3).
5. Antenna arrangement according to any one of Claims 1 to 2 or 4,
characterised in that the dual-polarized radiator arrangement (3) consists of a cross
dipole, a dipole square, or a vector dipole.
6. Antenna arrangement according to any one of Claims 1 to 5, characterised in
that the holding webs (131) have a thickness which corresponds to the material
thickness of the reflector arrangement or of the reflector frame (11) and/or the base
(121) of the carrying device (21).
7. Antenna arrangement according to any one of Claims 1 to 6, characterised in
that balancing slots (123) extending perpendicularly to the reflector plane are
introduced in the singly or dual-polarized radiator arrangement (3) and end close to
or at the level of the holding webs (131).
8. Antenna arrangement according to Claim 7, characterised in that the holding
webs (131) are provided at the level of the base (121) of the carrying device (121) of
the dual-polarized radiator arrangement (3).
9. Antenna arrangement according to Claim 7 or 8, characterised in that, in an
axial plan view of the dual-polarized radiator arrangement (3), the holding webs

(131) are arranged in a linear extension of the at least one carrying device and/or
balancing device slot (123).
10. Antenna arrangement according to any one of Claims 1 to 9, characterised by
the following further features
- the reflector arrangement (1) or the reflector frame (11) also comprises a
printed circuit board (5),
- the printed circuit board (5) comprises a printed circuit board side (5a), on
which an electrically conductive ground face (7) is provided,
- the reflector arrangement (1) or the reflector frame (11) comprises a reflector
face (13) which extends parallel to the printed circuit board (5) and/or the ground
face (7) and is used as a coupling face (13'),
- the coupling face (13') has the recess (13a), via which the ground face (7)
located therebelow and/or the printed circuit board (5) and an optionally provided
insulating intermediate layer is not covered, and
- the at least one radiator arrangement (3) is positioned and/or held on the
printed circuit board (5) in the region of the recess (13a).
11. Antenna arrangement according to any one of Claims 1 to 9, characterised in
that the reflector arrangement (1) or the reflector frame (11) in addition to the
reflector face (13) also comprises at least one longitudinal web (15) and/or at least
one transverse web (17) which rises transverse to the plane of the reflector face (13)
and is a component of the common part, in particular cast part, comprising the
radiator arrangement (3) and the reflector arrangement (1) or the reflector frame
(11).
12. Antenna arrangement according to Claim 11, characterised in that the
reflector arrangement (1) or the reflector frame (11) comprises at least two
longitudinal webs (15) and/or at least two transverse webs (17).

13. Antenna arrangement according to Claim 11 or 12, characterised in that the
reflector arrangement (1) or the reflector frame (11) is connected to the printed circuit
board (5) by means of mechanical connection means.
14. Antenna arrangement according to Claim 13, characterised in that the
reflector arrangement (1) or the reflector frame (11) is rigidly connected to the printed
circuit board (5) by means of a clip and/or latching and/or snap device.
15. Antenna arrangement according to any one of Claims 11 to 14, characterised
in that the reflector arrangement (1) or the reflector frame (11) is bonded to the
printed circuit board (5).
16. Antenna arrangement according to any one of Claims 11 to 15, characterised
in that the reflector arrangement (1) or the reflector frame (11) is rigidly connected to
the printed circuit board (5) using an adhesive tape (9) adhering on both sides or an
adhesive film (9) adhering on both sides.
17. Antenna arrangement according to Claim 16, characterised in that the
adhesive tape (9) or the adhesive film (9) has a recess, the size and/or position of
which corresponds at least to the size and/or the position of a corresponding recess
(13a).
18. Antenna arrangement according to Claim 17, characterised in that the
adhesive tape (9) or the adhesive film (9) is provided between the lower side of the
reflector face (13) and the ground face (7) or an insulating layer covering the ground
face (7) and therebeyond in the region of the recess (13a) in the reflector face (13),
preferably also in the region between the base (121) of the carrying device (21) of
the radiator arrangement (3) and the ground face (7) on the printed circuit board (5).
19. Antenna arrangement according to Claim '18, characterised in that a double-
sided adhesive tape (9) or a double-sided adhesive film (9) is also provided below
the base (121) of the carrying device (21) of the radiator arrangement (3), via which

the base (121) of the carrying device (21) is mechanically connected to the printed
circuit board (5).
20. Antenna arrangement according to any one of Claims 1 to 19, characterised
in that a plurality of radiator arrangements (3) are provided which are positioned at a
spacing with respect to one another preferably successively in a mounting direction.
21. Antenna arrangement according to any one of Claims 1 to 20, characterised
in that one radiator arrangement (3) is arranged per recess (13a) in a coupling face
(15).
22. Antenna arrangement according to any one of Claims 11 to 19, characterised
in that a transverse web (17) is provided between two radiator arrangements (3).

An improved antenna arrangement is characterized by the following features: the antenna arrangement comprises at least one dipolar emitter arrangement (3) with the associated supporting device and/or balancing (21) and the associated dipole and/or emitter halves (3a) and the reflector or the reflector element or the reflector frame (11), which are formed from a common part, and the material of this common part is electrically conductive or is provided with an electrically conductive surface or surface layer if it comprises a dielectric material.

Documents:

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Patent Number

272245

Indian Patent Application Number

5165/KOLNP/2008

PG Journal Number

14/2016

Publication Date

01-Apr-2016

Grant Date

23-Mar-2016

Date of Filing

17-Dec-2008

Name of Patentee

KATHREIN-WERKE KG

Applicant Address

ANTON-KATHREIN-STR. 1-3, 83022 ROSENHEIM, GERMANY

Inventors:

#	Inventor's Name	Inventor's Address
1	RIEDEL, MATTHIAS	FALKENSTRASSE 5, 83071 STEPHANSKIRCHEN, GERMANY
2	SADDINGTON, STEPHEN, JOHN	AM KIRCHSTEIG 7A, 83569 VOGTAREUTH, GERMANY

PCT International Classification Number

H01Q 19/10,H01Q 1/27

PCT International Application Number

PCT/EP2007/006636

PCT International Filing date

2007-07-26

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	10 2006 037 517.3	2006-08-10	Germany