Antenna arrangement, in particular for a mobile radio base station

• US 7,679,576 B2
• Filed: 07/30/2007
• Issued: 03/16/2010
• Est. Priority Date: 08/10/2006
• Status: Expired due to Fees

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Kathrein-Werke KG. (Kathrein SE)
• Inventors: Riedel, Matthias, Saddington, Stephen John
• Primary Examiner(s): Owens; Douglas W
• Assistant Examiner(s): TRAN, CHUC
• Application Number:
  US11/882,085
• Publication Number:
  US 20080036674A1
• Time in Patent Office: 960 Days
• Field of Search: 343/797, 343/798, 343/810, 343/816, 343/872, 343/878, 343/818
• 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 associated radiator halves,

a reflector arrangement having an electrically conductive reflector face, the reflector arrangement comprising at least a part of a reflector and plural holding webs electrically and mechanically rigidly connected thereto,

the at least one dipole-shaped radiator arrangement with the associated carrying device and the associated radiator halves as well as the reflector arrangement being formed from a common part, material of said common part being electrically conductive or provided with an electrically conductive surface,

the reflector arrangement defining a recess, in the region of which, transversely and perpendicularly to the plane of the reflector arrangement, the carrying device of the dual-polarized radiator arrangement extends, and

the carrying device is mechanically rigidly and electrically connected with the plural holding webs arranged offset in a direction that is peripheral to the reflector arrangement surrounding the recess.

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

the carrying device is mechanically rigidly connected at its base with said plural holding webs arranged offset in the direction that is peripheral to the reflector arrangement surrounding the recess.

3. The antenna arrangement as claimed in claim 1, wherein the dipole-shaped radiator arrangement with the associated carrying device and the associated radiator halves and the reflector are formed from a common part formed by the so-called primary forming method selected from casting, deep drawing, stamping or milling.

4. The antenna arrangement as claimed in claim 1, wherein the radiator arrangement comprises a singly-polarized dipole radiator.

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

6. The antenna arrangement as claimed in claim 1, wherein the holding webs have a thickness which corresponds to the material thickness of the reflector arrangement.

7. The antenna arrangement as claimed in claim 1, further comprising balancing slots extending perpendicularly to the reflector plane and end close to or at the level of the holding webs.

8. The antenna arrangement as claimed in claim 7, wherein the holding webs are provided at the level of the base of the carrying device.

9. The antenna arrangement as claimed in claim 7, wherein, in an axial plan view of the radiator arrangement, the holding webs are arranged in a linear extension of the at least one carrying device.

10. The antenna arrangement as claimed in claim 1, wherein the reflector arrangement comprises a printed circuit board having a printed circuit board side on which an electrically conductive ground face is provided,

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

the coupling face has the recess, via which the ground face located therebelow is not covered, and

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

11. The antenna arrangement as claimed in claim 10, wherein the reflector arrangement comprises at least one web which rises transverse to the plane of the reflector face and is a component of the common part.

12. The antenna arrangement as claimed in claim 11, wherein the reflector arrangement comprises at least one of two longitudinal webs and two transverse webs.

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

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

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

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

17. The antenna arrangement as claimed in claim 16, wherein the adhesive tape or 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 claim 17, wherein the adhesive tape or 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, also in the region between the base of the carrying device of the radiator arrangement and the ground face on the printed circuit board.

19. The antenna arrangement as claimed in claim 18, wherein a double-sided adhesive tape or film is also provided below the base of the carrying device of the radiator arrangement, via which the base of the carrying device is mechanically connected to the printed circuit board.

20. The antenna arrangement as claimed in claim 11, wherein a transverse web is provided between two radiator arrangements.

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

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