Antenna arrangement, in particular for a mobile radio base station

• US 20080036674A1
• Filed: 07/30/2007
• Published: 02/14/2008
• Est. Priority Date: 08/10/2006
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Kathrein-Werke KG. (Kathrein SE)
• Inventors: Riedel, Matthias, Saddington, Stephen
• Granted Patent: US 7,679,576 B2
• Time in Patent Office: Days
• US Class Current: 343/818
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H01Q 19/108 Combination of a dipole with a plane reflecting surface H01Q19/106 takes precedence; strip line H01Q9/065
• CPC Class Codes: H01Q 21/062 using dipole aerials; H01Q21/067, H01Q21/068 take precedence
• CPC Class Codes: H01Q 21/26 Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre

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.

Claims

1. An antenna arrangement comprising:

at least one dipole-shaped radiator arrangement, the dipole-shaped radiator arrangement comprising a carrying device and/or balancing device and associated dipole and/or radiator halves,

the reflector arrangement having an electrically conductive reflector face,

the reflector arrangement comprising at least a part of a reflector,

the antenna arrangement comprising at least one 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.

2. The antenna arrangement as claimed in claim 1, wherein:

the reflector arrangement or the reflector frame having a recess, in the region of which the carrying device extending transversely and, in particular, perpendicularly to the plane of the reflector arrangement or of the reflector frame and/or balancing device of the dual-polarized radiator arrangement extends, and

the carrying device and/or balancing device is preferably mechanically rigidly connected at its base with at least two holding or support webs arranged offset in the peripheral direction to the reflector arrangement surrounding the recess or the reflector frame.

3. The antenna arrangement as claimed in claim 1, wherein the dipole-shaped radiator arrangement with the associated carrying device and/or balancing device and the associated dipole and/or radiator halves and the reflector or the part reflector or the reflector frame are formed from a common cast part, a common deep drawn part, a common stamped part or a common milled part, or the like or comprises a part of this type, in other words preferably a common part formed by the so-called primary forming method.

4. The antenna arrangement as claimed in claim 1, wherein the radiator arrangement consists of a singly-polarized dipole radiator or of a dual-polarized radiator arrangement.

5. The antenna arrangement as claimed in claim 1, wherein the dual-polarized radiator arrangement consists of a cross dipole, a dipole square, or a vector dipole.

6. The antenna arrangement as claimed in claim 1, wherein the support or holding webs have a thickness which corresponds to the material thickness of the reflector arrangement or of the reflector frame and/or the base of the carrying device.

7. The antenna arrangement as claimed in claim 1, wherein balancing slots extending perpendicularly to the reflector plane are introduced in the singly or dual-polarized radiator arrangement and end close to or at the level of the holding and support webs.

8. The antenna arrangement as claimed in claim 7, wherein the holding and support webs are provided at the level of the base of the carrying device and/or the balancing device of the dual-polarized radiator arrangement.

9. The antenna arrangement as claimed in claim 1, wherein, in an axial plan view of the dual-polarized radiator arrangement, the holding and support webs are arranged in a linear extension of the at least one carrying device and/or balancing device slot.

10. The antenna arrangement as claimed in claim 1, wherein the reflector arrangement or the reflector frame also comprises a printed circuit board,

the printed circuit board comprises a printed circuit board side, on which an electrically conductive ground face is provided,

the reflector arrangement or the reflector frame comprises a reflector face which extends parallel to the printed circuit board and/or the ground face and is used as a coupling face,

the coupling face has the recess, via which the ground face located therebelow and/or the printed circuit board and an optionally provided insulating intermediate layer is not covered, and

the at least one radiator arrangement is positioned and/or held on the printed circuit board in the region of the recess.

11. The antenna arrangement as claimed in claim 1, wherein the reflector arrangement or the reflector frame in addition to the reflector face also comprises at least one longitudinal web and/or at least one transverse web which rises transverse to the plane of the reflector face and is a component of the common part, in particular cast part, comprising the radiator arrangement and the reflector arrangement or the reflector frame.

12. The antenna arrangement as claimed in claim 11, wherein the reflector arrangement or the reflector frame comprising at least two longitudinal web and/or at least two transverse webs.

13. The antenna arrangement as claimed in claim 11, wherein the reflector arrangement or the reflector frame is connected to the printed circuit board by means of mechanical connection means.

14. The antenna arrangement as claimed in claim 13, wherein the reflector arrangement or the reflector frame is rigidly connected to the printed circuit board by means of a clip and/or latching and/or snap device.

15. The antenna arrangement as claimed in claim 11, wherein the reflector arrangement or the reflector frame is bonded to the printed circuit board.

16. The antenna arrangement as claimed in claim 11, wherein the reflector arrangement or the reflector frame is rigidly connected to the printed circuit board using an adhesive tape adhering on both sides and/or an adhesive film adhering on both sides, or the like.

17. The antenna arrangement as claimed in claim 16, wherein the adhesive tape or the adhesive film has a recess, the size and/or position of which corresponds at least to the size and/or the position of a corresponding recess.

18. The antenna arrangement as claimed in any one of claim 11, wherein the adhesive tape or the adhesive film is provided between the lower side of the reflector face and the ground face or an insulating layer covering the ground face and therebeyond in the region of the recess in the reflector face, preferably also in the region between the base of the carrying device and/or balancing device of the radiator arrangement and the ground face on the printed circuit board.

19. The antenna arrangement as claimed in claim 11, wherein a double-sided adhesive tape or a double-sided adhesive film is also provided below the base of the carrying device and/or balancing device of the radiator arrangement, via which the base of the carrying device and/or balancing device is mechanically connected to the printed circuit board.

20. The antenna arrangement as claimed in claim 1, wherein a plurality of radiator arrangement are provided which are positioned at a spacing with respect to one another preferably successively in a mounting direction.

21. The antenna arrangement as claimed in claim 1, wherein one radiator device is arranged per recess in a coupling face.

22. The antenna arrangement as claimed in claim 1, wherein a transverse web is provided between two radiator arrangement.