Dual polarized antenna

• US 7,427,966 B2
• Filed: 12/28/2005
• Issued: 09/23/2008
• Est. Priority Date: 12/28/2005
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Kathrein-Werke KG. (Kathrein SE)
• Inventors: Boss, Michael, Kreuzer, Norbert, Langenberg, Jörg, Rumold, Jürgen, Gottl, Maximilian
• Primary Examiner(s): DINH, TRINH VO
• Application Number:
  US11/319,211
• Publication Number:
  US 20070146225A1
• Time in Patent Office: 1,000 Days
• Field of Search: 343/797, 343/810
• US Class Current: 343/797
• CPC Class Codes: H01Q 21/08 the units being spaced along or adjacent to a rectilinear path waveguide fed H01Q21/0037
• 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

A dual polarized antenna with at least one dual polarized radiator device comprises a reflector (3) and longitudinal or transverse webs (9, 11) provided at least on its longitudinal side and/or on its transverse side. The improvement is distinguished by the following features: at least one longitudinal web (9) and/or at least two longitudinal webs (9) provided with respect to the radiator device (1, 1′) located in between and/or at least one transverse web (11) and/or at least two transverse webs (11) provided with respect to the radiator device (1, 1′) located in between are positionally changeable directly or at least indirectly by pivoting and/or bending and/or deforming and curving.

Claims

1. A dual polarized antenna comprising:

a reflector having a plane,

at least one dual polarized radiator device disposed on said reflector, the at least one dual polarized radiator device having polarization planes, the polarization planes of the at least one radiator device being aligned at an angle of +45° and

−

45°

respectively, with respect to the longitudinal or transverse direction of the reflector,

a first web pivotably disposed on the reflector, said first web having a first longitudinal edge,

a second web pivotably disposed on said reflector, said second web having a second longitudinal edge, said first and second webs being arranged on said reflector so that said first and second longitudinal edges are disposed parallel to and offset in relation to one another, the at least one dual polarized radiator device being disposed between the first and second webs, and

a third web disposed on said reflector, said third web having a third longitudinal edge parallel to and offset in relation to said second longitudinal edge,

wherein;

the first and second webs are positionally changeable by pivoting with respect to the reflector, and

the reflector is electrically/galvanically separated from and/or capacitively connected with at least one of the first and second webs.

2. Antenna according to claim 1, wherein the first and second pivotable webs comprise at least one pair of longitudinal and/or transverse webs that are pivoted in the same direction.

3. Antenna according to claim 1, wherein said first and second webs comprise at least one pair of longitudinal and/or transverse webs that are pivoted toward one another.

4. Antenna according to claim 1, wherein at least one of said first and second webs comprises at least one pair of longitudinal and/or transverse webs that are pivoted away from one another.

5. Antenna according to claim 1, wherein pivoting axis runs parallel to the webs.

6. Antenna according to claim 1, wherein said first and second webs comprise plural longitudinal webs and/or transverse webs interacting with respect to a radiator device that are pivotable toward one another in such a way that the clear distance between the ends of the longitudinal and/or transverse webs lying away from the reflector is greater than in a basic position, in which the longitudinal and/or transverse webs are aligned perpendicular to the plane of the reflector or to a reflector region in the direct vicinity of the radiator device.

7. Antenna according to claim 1, wherein said first and second webs comprise plural longitudinal webs and/or transverse webs interacting with respect to a radiator device that are pivoted away from another in such a way that the clear distance between the ends of the longitudinal and/or transverse webs lying away from the reflector is less than in a basic position, in which the longitudinal and/or transverse webs are aligned perpendicular to the plane of the reflector or to a reflector region in the direct vicinity of the radiator device.

8. Antenna according to claim 1, wherein the first and second webs have a pivoting axis that is arranged part-way up and at a distance from the plane of the reflector, parallel to the plane of the reflector or a reflector region in the vicinity of the radiator device.

9. Antenna according to claim 1, wherein the first and second webs have a pivoting axis that lies offset in relation to the longitudinal and/or transverse webs, in the plane of the reflector.

10. Antenna according to claim 1, wherein the reflector has a reflector portion that can be pivoted with an associated longitudinal and/or transverse web about a pivoting axis.

11. Antenna according to claim 1, wherein the first and second webs comprise longitudinal webs and transverse webs provided on either side of the radiator device to form a radiator environment, an associated reflector projecting beyond the longitudinal webs and/or transverse webs, viewed from the associated radiator device.

12. Antenna according to claim 1, wherein at least one of the first and second webs is mechanically connected to the reflector by means of a dielectric pivoting body, forming a pivoting axis or pin.

13. Antenna according to claim 1, wherein the first and second webs, have or comprise, thin conductive layer spring elements on a film substrate or partly flexible printed circuit boards or portions of a printed circuit board.

14. Antenna according to claim 13, wherein the positional change of first and second webs is remotely controllable.

15. Antenna according to claim 1, further including means for adjusting manually or by means of an actuating or control device.

16. Antenna according to claim 1, wherein at least one of the first and second webs has varied heights over its entire length of extent or at least has a different height than a further web.

17. Antenna according to claim 1, wherein the first web can be flipped over onto the plane of the reflector, the bending and/or pivoting axis arranged at the outer limitation of the reflector being able to increase the area of the reflector when the first web is pivoted outward.

18. Antenna according to claim 1 wherein said third web is also pivotable with respect to said reflector.

19. Antenna according to claim 1 wherein said reflector defines an edge, said third web is disposed at said reflector edge, and said second web is disposed between said third web and said radiator device.

20. Antenna according to claim 1, wherein said reflector defines an edge, said second web is disposed at said reflector edge, and said third web is disposed between said second web and said radiator device.

21. Antenna according to claim 1, wherein no radiator device is disposed between said second and third webs.