Dual polarization antenna array with increased wireless coverage

• US 7,965,252 B2
• Filed: 10/23/2009
• Issued: 06/21/2011
• Est. Priority Date: 08/18/2004
• Status: Active Grant

• Current Assignee: Ruckus IP Holdings LLC
• Original Assignee: Ruckus Wireless, Inc. (CommScope Holding Company, Inc.)
• Inventors: Baron, Bernard, Shtrom, Victor, Kish, William
• Primary Examiner(s): Chen; Shih-Chao
• Application Number:
  US12/604,832
• Publication Number:
  US 20100103065A1
• Time in Patent Office: 606 Days
• Field of Search: 343/700.MS, 343/795, 343/818, 343/876, 343/893
• US Class Current: 343/795
• CPC Class Codes: H01Q 15/148 with means for varying the reflecting properties H01Q15/147 takes precedence
• CPC Class Codes: H01Q 19/24 the primary active element being centre-fed and substantially straight, e.g. H-antenna
• CPC Class Codes: H01Q 21/062 using dipole aerials; H01Q21/067, H01Q21/068 take precedence
• CPC Class Codes: H01Q 21/205 providing an omnidirectional coverage turnstile aerials H01Q21/26
• CPC Class Codes: H01Q 21/24 Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001
• CPC Class Codes: H01Q 3/24 varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
• CPC Class Codes: H01Q 3/446 the radiating element being at the centre of one or more rings of auxiliary elements
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407

Abstract

A wireless device having vertically and horizontally polarized antenna arrays can operate at multiple frequencies concurrently. A horizontally polarized antenna array allows for the efficient distribution of RF energy in dual bands using, for example, selectable antenna elements, reflectors and/or directors that create and influence a particular radiation pattern. A vertically polarized array can provide a high-gain dual band wireless environment using reflectors and directors as well. The polarized horizontal antenna arrays and polarized vertical antenna arrays can operate concurrently to provide dual band operation simultaneously.

Claims

1. An antenna system, comprising:

a horizontally polarized antenna;

a vertically polarized antenna coupled to the horizontally polarized antenna by fitting the vertically polarized antenna in a first aperture formed within a printed circuit board of the horizontally polarized antenna, the vertically polarized antenna having a plurality of vertically polarized antenna elements; and

a first reflector coupled to the printed circuit board by fitting the first reflector in a second aperture formed within the printed circuit board.

2. The antenna system of claim 1, wherein the horizontally polarized antenna includes a plurality of selectable antenna elements configured to be selectively coupled to a radio frequency feed port.

3. The antenna system of claim 2, further comprising an antenna selector configured to couple at least one antenna element to the radio frequency feed port.

4. The antenna system of claim 1, wherein the horizontally polarized antenna radiation is substantially perpendicular to the vertically polarized antenna radiation.

5. The antenna system of claim 1, further comprising a first reflector array which includes the first reflector configured to influence a radiation pattern of the vertically polarized antenna.

6. The antenna system of claim 5, wherein the first reflector array includes three reflectors.

7. The antenna system of claim 5, further comprising a second reflector array coupled to the horizontally polarized antenna array and configured to influence a radiation pattern of the vertically polarized antenna array.

8. The antenna system of claim 7, wherein each of the first reflector array and the second reflector array include a plurality of selectable reflectors configured to be coupled to a ground portion of a PCB.

9. The antenna system of claim 1, further comprising a plurality of reflectors within the printed circuit board of the horizontally polarized antenna and configured to reflect the horizontally polarized antenna array radiation.

10. The antenna system of claim 1, wherein the horizontally polarized antenna array is configured in a triangular orientation.