EP2050165B1 - Antenna arrangement, in particular for a mobile radio base station - Google Patents

Abstract

An improved antenna arrangement comprises at least a dipole-shaped radiator arrangement with the associated carrying device and/or balancing device and the associated dipole and/or radiator halves as well as the reflector or the part reflector or the reflector frame 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 consists of a dielectric material.

Description

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 US Pat WO 00/039894 A1 known. In this Vorveröffentlichung a vertically alignable reflector is described, to eat two vertical and mutually parallel outer side boundaries each formed in a radiation direction and thus transverse to the reflector plane side web. Arranged one above the other in the vertical direction are a plurality of dipole arrangements which radiate in two planes of polarization aligned perpendicular to one another and which consist of so-called vector dipoles. These vector dipoles are designed structurally similar to dipole squares. However, the design and the feeding are such that, despite the horizontally or vertically oriented Dipole the dipole arrangement acts as a whole X-polarized antenna, in which the two mutually perpendicular polarization planes are aligned at an angle of + 45 ° or -45 ° relative to the vertical or the horizontal.

From the generic DE 103 59 622 A1 It can be seen that the dual-polarized radiator, sitting in front of a reflector, can be provided with a capacitive outer conductor coupling. In each half of the two by 90 ° twisted symmetries are therefore perpendicular to the reflector plane extending axial bores introduced in the area with the reflector galvanically connected rod-shaped coupling elements 21 sit, which are surrounded by cylindrical insulators, on which with the four axial bores provided and rotated by 90 ° to each other arranged pairs of symmetry halves of the dual-polarized radiator arrangement can be placed. Within two rod-shaped coupling elements, an inner conductor for feeding the two mutually perpendicular polarizations of the radiator arrangement can be laid from the rear side of the reflector forth.

It can also be seen from this prior publication that the dipole radiator arrangement with the associated support device and / or symmetrization and the associated dipole and / or radiator halves form a common part which is electrically conductive or provided with an electrically conductive surface or surface layer. The radiator arrangement thus formed is then according to the above DE 103 59 622 A1 by means of said outer conductor coupling on an associated Reflector arrangement attached.

A Strahleranördnung is also from the EP 1 588 454 B1 known. According to this prior publication, the use of, for example, a vertically alignable antenna arrangement with a reflector is described on the vertical lateral boundary lines two transverse and in particular perpendicular to the reflector plane in the beam direction projecting side webs are formed, between which sit in the vertical direction superposed dual polarized radiator. Also according to this prior publication, the base of the symmetrization of the associated radiator arrangement is connected capacitively (ie without electrical galvanic contact) connected or coupled thereto, with the interposition of a base with the reflector, for which purpose the reflector has a recess in which the non-conductive base engages and is anchored which in turn holds the symmetrization or the basis of the symmetrization of the dual-polarized radiator. The laying of the inner conductor can be carried out as described in the aforementioned prior art.

Finally, antenna arrangements with reflectors are known, on whose longitudinal side areas, that is to say at their longitudinal or vertical side areas, ridges protruding forwardly from the reflector plane are provided, as is the case, for example, from the prior publications WO 99/62138 A1 . US 5,710,569 A or EP 0 916 169 B1 can be seen.

In an alternative embodiment according to this prior publication shows that instead of an electrically conductive reflector, usually in the form of a metal sheet, a printed circuit board are used can, on which the reflector is constructed. In this case, the electrically conductive ground plane is preferably omitted on one side of the printed circuit board or the base is also provided with an insulation in this area.

From the WO 2004/091041 A1 It can be seen as known that a reflector for a radiator arrangement, for example, is not assembled from a plurality of sheet metal parts, but may consist of a casting, a deep-drawn part, a stamped part or a milled part. In this case, the reflector thus produced may also be formed at least with an additionally integrated functional part, which is integrally connected to the reflector. This functional part can be one or more housing parts for HF components. It is described, for example, how on the reflector back a housing approach is made in one piece with the reflector, in which for the supply of arranged on the front emitters feed lines can be accommodated.

Object of the present invention is, starting from the generic state of the art according to the DE 103 59 622 A1 to provide an antenna arrangement in which the risk of the occurrence of intermodulation products is minimized. Here, the production-related assembly effort should also be as low as possible.

The object is achieved according to the features specified in claim 1. Advantageous embodiments of the invention are specified in the subclaims.

The invention provides an improved antenna arrangement that can be manufactured easily and with high accuracy with exactly predetermined radiation characteristics while avoiding potential sources of interference such as unwanted intermodulation.

The Antennaanördnung invention is characterized in that the at least one radiator assembly and an associated reflector or at least one associated reflector frame manufactured in common, in particular cast, ie consist of a common part or, for example, cast part. Preferably, the entire antenna arrangement comprises at least one radiator arrangement and the reflector or the partial reflector or a reflector frame, which are formed from a common die cast part, in particular a metal die cast part such as an aluminum cast part. It is also possible to cast the entire arrangement of a dielectric material, in particular plastic material and then with a metallized, i. electrically conductive surface to provide.

In particular, when the antenna assembly is made in its essential parts, so for example with the aforementioned radiator arrangement (ie, for example, the dipole and / or radiator halves and the associated supporting or balancing device and the associated reflector or a partial reflector) made of metal, come Other manufacturing processes into consideration, for example. the production by deep drawing, milling, or the like.
In other words, therefore, the essential parts of such an antenna arrangement, comprising the radiator arrangement with the associated support means and / or Symmetrization and the associated reflector or associated reflector part, from a jointly manufactured part, which can also be referred to all in one piece or in one piece. Frequently, such parts are also referred to by a so-called "original molding process".

In this case, the. Reflector arrangement on a recess, within which the support means of the radiator arrangement is provided, which is preferably mechanically fixedly connected at its base via at least two and preferably at least four offset circumferentially arranged holding or supporting webs with the recess surrounding the reflector assembly.

Within the scope of such an antenna arrangement according to the invention, the reflector arrangement may also comprise at least one 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 usually comprises a plurality of spaced-apart radiator arrangements when installed in vertical alignment, so that such inventive, uniformly cast antenna with multiple radiators and / or radiator arrangements and the cast reflector or reflector frame two includes lateral, longitudinally extending longitudinal webs (which may be arranged offset on a lateral edge or rather to the center). Furthermore, however, the antenna arrangement according to the invention may also comprise an upper and lower transverse web. If a plurality of radiator arrangements offset in the direction of attachment to each other, can also between these still each transverse webs extending be formed, which are also integrally molded with the entire antenna assembly. An entire such antenna arrangement can thus be produced as a uniformly manageable casting.

In a preferred embodiment, the with the reflector or the reflector frame cast with radiator assembly can also consist of dual-polarized radiator arrangements, which radiate in two mutually perpendicular polarization planes. This cross-shaped dipole radiator could be used, but also so-called vector dipoles, as they are basically from the WO 00/039894 A1 are known.

In a preferred embodiment, vector diols are used, as they are known from the WO 2004/100315 A1 are known, in 'namely the belonging to each polarization levels diagonally arranged and considered by itself in plan view square or square shaped radiator halves can be configured with a closed surface or even closed over the entire surface.

In a preferred embodiment, it is further provided that corresponding recesses are provided in the region of the reflector plane in the region of these dipole or radiator halves. Namely, in the region of the individual dipole halves or radiator halves separating slits that merge into recesses of the radiator supporting symmetry or support means, preferably lying in the reflector plane holding webs or holding connections can be provided on what the center-mounted radiator assembly is held by the surrounding reflector frame.

The latter embodiment also offers the advantage that a corresponding tool can be used which has a cavity defining the upper surface during the casting process, which forms the lower surface of the respective dipole half or radiator half. This tool can then be deducted downwards, ie with a transverse component to the reflector plane through the corresponding window-shaped recess, wherein the entire radiator assembly is held by the mentioned holding webs or holding connection sections, about which the radiator arrangement is connected to the surrounding reflector.

In particular, if a reflector without longitudinal and / or transverse webs is formed, it would also be possible to remove tools laterally with a withdrawal movement parallel to the reflector plane during demolding, so that then the reflector plane could also be closed.

In a reflector thus formed, the base of the symmetrization of the radiator arrangement with the reflector plane would be galvanic, i. be DC connected.

The dual-polarized radiator arrangement and the associated reflector frame can be made of an electrically conductive material. However, the radiator arrangement and the reflector frame can also be formed from a plastic or generally dielectric material, ie cast, in which case the corresponding parts are provided with an electrically conductive surface layer. In However, in this case, it is not necessary, for example, for the abovementioned holding webs or holding connections to be electrically conductive between the carrying device and the emitter device and the reflector frame. In other words, the radiator device and in particular its support device and / or the balancing and the reflector frame can be galvanically separated from each other.

In addition, the antenna arrangement according to the invention with a reflector arrangement comprising preferably a plurality of radiators and a reflector frame with longitudinal and / or transverse webs can also be capacitively coupled to a ground area or capacitively coupled to a ground area arranged below the so-called reflector frame.

In the prior art, it has hitherto been customary to generally use reflectors made of a metal sheet on which the radiator modules are constructed. By between the lateral outer boundary of the reflector plane and the generally more centrally arranged radiators could be formed in the form of longitudinal webs at a suitable location the transversely to the reflector plane projecting longitudinal side, for example, set between a vertical orientation to the reflector plane to an angled orientation could be that a desired beam shaping was possible.

In contrast, if one wanted to use reflectors in the form of printed circuit boards (so-called PCB's), which were provided on a circuit board side with an electrically conductive ground surface, this has required that the webs required for beam forming by means of screw or Soldered connections had to be connected to the ground plane of the printed circuit board in order to realize a clear galvanic connection here. However, this assembly work was not only costly, but always caused potential sources of intermodulation interference.

In contrast, it is now proposed, starting from a printed circuit board, which is preferably provided on the radiator side with an electrically conductive ground surface and an insulating layer above, building on the reflector frame with its associated radiator arrangement, which is provided with a coupling surface parallelel to the ground surface of the printed circuit board, wherein at this coupling surface then again required for the diagram forming longitudinal and / or transverse webs are formed. In other words, it is preferable to provide a capacitive reflector frame coupling which makes it possible to capacitively couple the longitudinal and / or transverse webs necessary for the shaping of the diagram to a ground plane which is seated on a printed circuit board.

In the context of the invention, therefore, a capacitive coupling of the reflector frame is preferably provided on a printed circuit board without galvanic connection between reflector and printed circuit board ground plane. The invention is characterized by a stable intermodulation-free connection.
Above all, a precisely defined coupling between the ground plane of the printed circuit board and the reflector frame can be ensured within the scope of the invention by a clearly defined distance and / or by a clearly predefinable size of the coupling surfaces.

Finally, it is also fast and easy Assembly within the scope of the invention possible, whereby sources of error are reduced and above all eliminate solder joints on the reflector. If the uniformly cast antenna arrangement according to the invention consisting of reflector frame and radiator module or radiator modules is used as the antenna arrangement, then further mounting steps for connection to an additional printed circuit board provided, for example, with a ground plane would not be necessary at all. If such a grounded printed circuit board for producing a capacitive outer conductor coupling is used, then a simple connection is possible, for example, a double-sided adhesive strip is used to the reflector frame with the underlying provided with a ground plane circuit board to form the overall reflector with the capacitive outer conductor coupling produce.

The fully assembled unit, consisting of the reflector frame and the associated radiator arrangement and the printed circuit board, forms a self-supporting unit. The reflector frame as well as the base of the radiator arrangement or the radiator arrangements can be fixed on the board by any suitable means, for example by means of clips, by means of a double-sided adhesive tape, separate adhesive etc.

Preferably, the ground surface on the printed circuit board is provided with a galvanic isolation from the reflector beam enabling insulating layer, for example in the form of a paint, in particular Lötstoplackes, a film or other plastic layer. If the reflector frame by means of a two-sided Adhesive adhesive tape is glued, thereby already an insulation and thus a galvanic separation between the electrically conductive reflector frame on the one hand and ground plane on the circuit board on the other hand generated, so that could even be dispensed with a separate insulating layer on the ground plane.

Figur 1:

eine schematische dreidimensionale Darstellung eines Grundtyps einer erfindungsgemäßen Antenne mit einer dualpolarisierten Strahleranordnung;

Figur 2:

eine Explosionsdarstellung des Ausführungsbeispieles nach Figur 1;

Figur 3:

eine entsprechende schematische dreidimensionale Darstellung für eine erfindungsgemäße Antennenanordnung mit drei versetzt zueinander angeordneten und dualpolarisierten Strahlern;

Figur 4:

eine Explosionsdarstellung des Ausführungsbeispiels nach Figur 3;

Figur 5 :

eine schematische Querschnittsdarstellung durch einen dualpolarisierten Strahler mit einem Teil der Reflektoranördnung zur Verdeutlichung der Speisung des Strahlers; und

Figur 6 :

ein zu Figur 5 abgewandeltes Ausführungsbeispiel.

Further advantages, details and features of the invention will become apparent from the following with reference to figures explained embodiments. In detail:

FIG. 1:

a schematic three-dimensional representation of a basic type of antenna according to the invention with a dual-polarized radiator arrangement;

FIG. 2:

an exploded view of the embodiment according to FIG. 1 ;

FIG. 3:

a corresponding schematic three-dimensional representation of an antenna arrangement according to the invention with three mutually offset and dual-polarized emitters;

FIG. 4:

an exploded view of the embodiment according to FIG. 3 ;

FIG. 5:

a schematic cross-sectional view through a dual-polarized radiator with a part of the Reflektoranördnung to illustrate the supply of the radiator; and

FIG. 6:

one too FIG. 5 modified embodiment.

In FIG. 1 shows the basic type of antenna arrangement according to the invention, as it 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 emitter or a dual-polarized emitter arrangement 3 is provided. In the exemplary embodiment shown, this is a vector dipole which radiates in two mutually perpendicular planes of polarization P, which are perpendicular to the reflector plane and extend virtually diagonally through the corners of the emitter array which is formed quadratically in plan view. With respect to the structure and operation of such a type of radiator, for example, the WO 00/039894 A1 directed.

In principle, however, any radiator or radiator type can be used within the scope of the invention, in particular dipole radiators and / or patch radiators, such as those described in the previous 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 are known.

From the illustration according to FIG. 1 It can be seen that the antenna arrangement has a so-called reflector or reflector frame 11. This reflector or reflector frame 11 comprises a reflector surface 13, which will hereinafter also be referred to as a coupling surface 13 ', partly also with regard to an embodiment of the invention to be discussed later. This reflector surface 13 is provided in the embodiment shown with perpendicular to the reflector surface 13 extending longitudinal webs 15 and transverse webs 17, which are formed and / or provided in the embodiment shown on the outer boundaries of the reflector frame 11, but may also be offset from the outer boundaries of the reflector frame 11 further inward, so that an outside of the webs 15, 17 projecting portion of the reflector remains. These longitudinal and transverse webs 15, 17 are also connected to each other at the corner regions 19. The longitudinal and transverse webs shown need not necessarily be aligned perpendicular to the reflector surface 13. Some of these webs can also run in a direction deviating from a 90 ° angle to the reflector surface, for example, diverging or converging in the beam direction or rather inclined to the left or to the right, etc. In principle, there are no restrictions.

From the illustration according to FIG. 1 is also apparent that the reflector surface 13 is provided with a recess 13a, which is dimensioned in the embodiment shown in the longitudinal and transverse directions at least as large as the dual-polarized radiator 3 with respect to its longitudinal and / or transverse extent. The cutout surface forming the corresponding recess 13a can be arbitrarily shaped, ie they can deviate from the outer contour of the radiator and even comprise curved edge courses, so that the recess 13a thus formed is defined by curved track sequences or by any other boundary lines.

From the illustration according to FIG. 1 can also be seen that the two arranged rotated by 90 ° to each other Symmetries 21 (one symmetry for each polarization of the radiator device 3) one in common FIG. 1 underlying base 121, of the upward extending so-called Symmetrierschlitze 123 are provided. In that regard, in the following, in particular, a supporting device 21 for the dipoles or radiators or dipole or radiator halves, etc., is used, wherein the carrying device comprises corresponding slots 123 extending axially from above in the direction of the base 121.

The antenna arrangement according to the invention is characterized 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, ie consist of a common casting.
Preferably, the entire antenna arrangement comprises at least one radiator arrangement and the reflector or the partial reflector or a reflector frame, which are formed from a common casting, in particular die-cast part such as a metal die-cast part or an aluminum casting. It is also possible to cast the entire arrangement of a dielectric material, in particular plastic material, and then to provide it with a metallized, ie electrically conductive surface.

How out FIG. 1 It can also be seen that in the reflector plane of the reflector frame 11, that is provided in the amount of the reflector surface 13 window-shaped recess 13a in plan view is approximately square.
In this case, this window-shaped square configuration is divided into four partial openings 13'a, namely by each of the base 121 of the support means and / or symmetrization 21 centrally and transversely, ie in particular perpendicular to the side boundaries of the window opening Holding webs 131, which are cast during the casting process of the antenna assembly with the radiator assembly and the reflector frame 11 together. Through this total of four retaining webs 131, the support device and / or balancing 21 and thus the entire radiator assembly 3 is connected to the reflector frame 11 and thus held.

The width of the holding webs 131 corresponds to the slot width of the slots 123 in the carrying device and / or symmetrization 21, over which the overhead dipole or emitter halves 3 a are held. The thickness of the holding webs 131 can be chosen arbitrarily. Thus, the thickness of the holding webs 131, for example, the thickness of the coupling surfaces 13 or even the thickness of the base 121 of the support means and / or balancing 21, i. the carrier device 21 accordingly.

In the embodiment shown, the slots 123 extend approximately to the surface of the coupling surfaces 13 and the surface of the holding webs 131, but can also end above. Preferably, the reflector frame 11 is made together with the entire radiator assembly 3 of an electrically conductive material, for example of a metal casting (aluminum but other materials come into consideration for this). It may also be a plastic part, which is then metallized, that has been coated with a metallic conductive surface. In particular, in the production of the reflector frame 11 made of metal, other manufacturing methods come into consideration, for example, a production of the reflector frame by deep drawing, milling or the like. With In other words, the antenna arrangement can be made with the radiator assembly 3 and the reflector or reflector frame by other manufacturing methods as a common part, for example by milling, optionally by deep drawing, etc. Often, in this respect also referred to by a so-called "archetype method".

A design of the antenna arrangement with the above-mentioned holding webs 131 and the slots 123 and the illustrated window-shaped recesses 13'a has the advantage that, for example, a casting tool can be used, which has cruciform walls, which after completion of the casting process in the illustration FIG. 1 perpendicular to the reflector surface could be deducted upwards, about which the cross-shaped separation and Symmetrierschlitze and lying inside further recesses 151 (which are required to lay supply cable here) can be pulled upwards, whereas another part of the casting tool through the four Teilwindausnehmungen 13'a can be deducted down. Only if at least transverse and / or longitudinal webs would be dispensed with, could such a tool also laterally, ie parallel to the coupling surface plane 13 are deducted, so that then the window-shaped recesses 13a in height of the coupling surfaces 13 could be omitted.

Such a formed antenna arrangement is in itself, after the corresponding wiring has been installed in particular for feeding the radiator assembly, fully functional. It is characterized by the basis of FIG. 1 explained antenna arrangement a uniformly manageable, mechanically firmly connected overall arrangement consisting of a dipole radiator (in the illustrated embodiment formed from a dual-polarized dipole radiator) and a reflector frame.

Deviating from this, however, this antenna arrangement can also be completed even further, namely with an additional total surface area resulting from the total reflector, which is formed on a substrate.

For this purpose, the exploded view according to FIG. 2 directed.

As can be seen in particular from the exploded view with respect to a preferred embodiment of the invention according to FIG. 2 Furthermore, the antenna arrangement may also comprise a printed circuit board 5, namely a so-called "printed circuit board" (PCB), which preferably on the side facing the radiator side 5a, the so-called radiator or mass surface side 5a, with a preferably full-surface electrically conductive ground plane 7 is provided. On the opposite track level 5b (ie on the zu FIG. 1 and 2 Unillustrated underside of the printed circuit board 5) then the electrical components and the interconnecting the electrical components interconnects are provided.

Usually, the ground surface 7 with an in FIG. 2 not reproduced insulating layer 8 covered, for example in the form of a plastic or foil layer, a lacquer layer or so-called Lötstoplackschicht etc.

The basis of FIG. 1 explained antenna arrangement with the radiator assembly 3 and the reflector frame 11 can be firmly connected to the printed circuit board 5, namely through all appropriate measures. An assembly of both parts can be done for example by fixing one of the printed circuit board back forth in the bottom, ie the base 121 of the support device and / or balancing 21 einzudrehenden screw or other clip-like fasteners, wherein the support means and / or balancing 21, what the radiator elements 3a of the dual-polarized radiator 3, is capacitively coupled to the underlying ground surface 7 of the printed circuit board 5.

Also, the reflector frame 11 could be connected by suitable mechanical means to the circuit board.
Preferably, however, the reflector frame 11 is attached by means of a double-sided adhesive film 9 on the upper side of the printed circuit board 5, wherein the adhesive film 9 is provided in the illustrated embodiment with a window-like cutout 9 ', the size and positioning of the cutout 13a in the coupling surface 13 of the reflector frame eleventh corresponds or approximates. But the adhesive film can also be continuous, so be provided without the above-mentioned window-like cutout 9 '. It can also be provided on the underside of the base 121 of the support means and / or symmetrization 21 a corresponding provided with a double-sided adhesive layer adhesive film 9 or other spacers, so that between the bottom of the coupling surfaces 13 and the bottom of the base 121 to the underlying Covered with an insulating layer ground surface 7 of the printed circuit board 5, the same distance conditions and conditions are given.

Should the insulating layer 8 on the ground surface 7 also be provided with a window, so that in the region of this window, the insulating layer 8 is omitted (this area where the insulating layer 8 is omitted on the ground surface, comparable or size and / or arrangement of the other window 9 'with respect to the double-sided adhesive device 9 and / or may correspond to the recess 13a in the reflector surface 13), the ground surface 7 would be "bare" in this area. In this case, the base 121, that is to say the underside of the carrying direction and / or symmetrization 21, could also be contacted galvanically with the ground surface 7. In the board holes and aligned axial bores in the base 121 of the support means and / or balancing 21 of the radiator assemblies are formed to lead here from the back of the circuit board each serving a serving inner conductor upwards and over a Bückenabschnitt with each diagonally opposite second half 3a of the overhead radiator device 3 galvanic or as in the example WO 2005/060049 A1 described inductively couple. It is therefore to that extent also with respect to the operation of the above-mentioned prior publication or on the later discussed Figures 5 and 6 directed.

In order to ensure a firm connection once between the reflector surface 13, that is to say a fixed connection between the reflector frame 11 on the one hand and the underside of the base 121 of the radiator arrangement 3 on the other hand with the printed circuit board, all imaginable connecting methods can be considered. For example, an adhesive can be applied to the upper side of the printed circuit board (that is to say the ground surface or the insulating layer 9 covering the ground surface) and / or on the underside of the printed circuit board Coupling surface 13 are applied. But are also possible clip-shaped parts that engage in touchdown and realize a catch.

Preferably, however, the above-mentioned double-sided adhesive tape 9 is used, thereby ensuring a fixed predetermined distance between the coupling surface 13 and the ground surface 7 and gleichzeltig a mechanically fixed connection is realized. By such a connection, the reflector frame 11 with the printed circuit board 5 is a firmly connected self-supporting unit.

Due to the described construction, a capacitive coupling is generated by the capacitive coupling of the reflector surface 13, which is therefore also partially referred to as the coupling surface 13 ', and the underlying ground surface 7 on the printed circuit board 5, which also for the longitudinal and / or transverse webs 15, 17th ensures the desired capacitive coupling of the ground plane.

Based on FIG. 3 only one extension is reproduced in such a way, according to which the corresponding antenna arrangement can also comprise several adjacent in the mounting direction of each other or superimposed radiator arrangements 3, such an antenna array with the plurality of radiators is usually placed in the vertical direction, so that the plurality of radiator arrays arranged one above the other in a vertical plane are. The reflector frame can comprise a number of reflector fields 25 corresponding to the number of the radiator arrangement. The size of the antenna arrangement is as far as possible expandable. Preferably, in this case, the double-sided adhesive tape 9 is formed correspondingly long and provided with three recesses 9 ', which correspond to the three recesses or windows 13a with the respective four sub-windows 13'a in the three reflector fields 25 of the reflector frame 11. Through the incorporated in the printed circuit board bore 26 (see FIG. 2 or 4 ) can be similar to the embodiment according to FIG. 3 , From below by screwing a screw into the base of the support means and / or symmetrization of the radiator device 13 these Strahlereinrichlung additionally be fixed, preferably an electrically non-conductive screw is used, especially if the base of the support means and / or symmetrization the radiator device 3 is to be capacitively coupled to the ground plane 7 of the printed circuit board 5. Preferably, however, a double-sided adhesive film similar to the double-sided adhesive tape 9 is provided on the underside of the base 121, so that the underside of the base 121 and the underside of the coupling surfaces 13 sit at the same distance level to the top of the underlying printed circuit board 5.

Based on Figures 5 and 6 is indicated only in a schematic section through a corresponding radiator arrangement, as a supply of a dual-polarized or in a similar manner also a simple polarized radiator 3 can be done.

The feeding is usually carried out by means of a coaxial cable which extends from the underside of the reflector through an axial bore 103 leading to the plane of the actual dipole and / or radiator halves 3a in the carrying device or symmetrization 21. At the upper end of this axial bore at the level of the dipole and / or radiator halves 3a is then stripped of the coaxial cable, so that the outer conductor, which is isolated in the axial bore 103 with respect to the support and / or balancing 21, exposed and then in the upper region, for example by means of a soldering 201 with the inner end of an associated dipole or radiator half 3a is galvanically connected. In FIG. 5 is shown in the drawings essentially only the inner conductor 101b. The coaxial cable would thus be laid through the axial bore 103 from below upwards, the outer conductor, as mentioned, then at the upper end of the support means 21 via the solder 201 with the associated dipole or radiator half 3a is electrically-galvanically connected. Up to this point, the outer conductor is insulated from the support device 21.

Alternatively or preferably, however, a coaxial feed cable would be connected so that the outer conductor at the lower end of the bore 103, for example, at a soldering point 201 'and the inner conductor 101b held only by an insulator and separated in the bore 103 is guided upwards. The bore in the support device thus acts as an outer conductor, which surrounds the inner conductor 101b, so that quasi a coaxial feed line is formed, via which the dipole and / or radiator halves, which are connected electrically conductive to the carrier device usually as a common component are to be fed.

If the supply of a dipole half (which is not fed via the inner conductor) is not effected by an electrical-galvanic coupling, for example in the region of the bore of the support device, but for example by Soldering an outer conductor of a coaxial cable, the corresponding power supply can also be effected capacitively, for example by a capacitive coupling between the base of the support means and the ground or reflector surface. Usually, therefore, the associated feed line, usually the outer conductor of a coaxial cable, connected in an area below the support means, which is preferably perpendicular to the reflector in plan view in that area below the dipole or radiator half, which is fed thereto.

The inner conductor 101b usually connected to the inner conductor of a coaxial cable is generally angled approximately at the level of the dipole and / or radiator 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 usually contacted there electrically by means of soldering 203.

In the case of a dual-polarized radiator, the feed of the dipole and / or radiator halves 3a offset by 90 ° takes place correspondingly, the second inner conductor extending crosswise over the first inner conductor 101b being arranged on a different plane so that the two inner conductors do not become centered touch, but be led past each other.

In a simply polarized radiator with only one plane of polarization, only one feeder, also referred to as an inner conductor, is needed.

In the embodiment according to FIG. 6 It is shown that the end 101b 'of the inner conductor 101b in another Axial bore 103 free ends, this further axial bore 103 is provided in the supporting and / or balancing device 21. In this case, the freely ending end portion of the inner conductor 101b is guided downward over a certain axial length in this further bore 103 and held in the bore 103 via an insulator 203 (similar to the corresponding insulator 203 for fixing the inner conductor 101b in the other axial bore 103). , whereby a capacitive or serial coupling with respect to the second dipole and / or radiator half 3a 'is accomplished here.

Other supplies are also possible.

Only for the sake of completeness it is mentioned that for example from the Figures 5 and 6 It can also be seen that here the slots 123 extend to the lower level or basic 121 of the carrying and / or balancing device 21. The height of this support and / or balancing device 21 or the slots 123 should preferably be in a range of about 1/8 to 3/8 of a wavelength from the relevant operating frequency band to be transmitted or received, preferably the height should therefore 1/8 to 3/8 relative to the mean wavelength λ of the frequency band to be transmitted or received, so preferably by about 1/4 λ. In general, therefore, the radiator height relative to the reflector, ie with respect to the ground or reflector surface should not fall below a value of λ / 10, with a restriction upwards basically does not exist, so that the radiator height could even be an arbitrary multiple of λ. The slots 123 can then be adjusted in length accordingly.

Claims (22)

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).

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