Dual Band Dual Polarization Antenna Array

• US 20100103066A1
• Filed: 10/23/2009
• Published: 04/29/2010
• Est. Priority Date: 08/18/2004
• Status: Active Grant

• Current Assignee: ARRIS Enterprises LLC (CommScope Holding Company, Inc.)
• Original Assignee: Ruckus Wireless, Inc. (CommScope Holding Company, Inc.)
• Inventors: Baron, Bernard, Shtrom, Victor, Kish, William
• Granted Patent: US 8,031,129 B2
• Time in Patent Office: Days
• US Class Current: 343/834
• 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. A dual band antenna system, comprising:

a horizontally polarized antenna array configured to concurrently operate at a first frequency and a second frequency; and

a vertically polarized antenna array coupled to the horizontally polarized antenna array and configured to concurrently operate at the first frequency and the second frequency with the horizontally polarized antenna array; and

a radio modulator/demodulator configured to communicate a radio frequency signal with the horizontally polarized antenna array and vertically polarized antenna array.

2. The dual band antenna system of claim 1, the first frequency higher than the second frequency, the first antenna positioned outside of the radiation produced by the second antenna.

3. The dual band antenna system of claim 1, wherein the horizontally polarized antenna array includes a first antenna element configured to operate at the first frequency and a second antenna element configured to operate at the second frequency.

4. The dual band antenna system of claim 2, wherein first antenna element operates at about 2.4 GHz and the second antenna element operates at about 5.0 GHz.

5. The dual band antenna system of claim 2, wherein the first antenna element and the second antenna element are on a single printed circuit board.

6. The dual band antenna system of claim 1, wherein the vertically polarized array is configured to couple with the horizontally polarized array through a slit in the horizontally polarized array.

7. The dual band antenna system of claim 1, the vertically polarized array including a first vertical antenna element array including a first antenna element configured to operate at the first frequency and a second vertical antenna element array including a second antenna element configured to operate at the second frequency.

8. The dual band antenna system of claim 7, wherein the first vertical antenna element array and second vertical antenna element array are equally spaced around the horizontal antenna array.

9. The dual band antenna system of claim 1, wherein the first vertical antenna element array and second vertical antenna element array are alternatively positioned around the horizontal antenna array.

10. The dual band antenna system of claim 1, further comprising an antenna selector configured to selectively couple to antenna elements within the horizontally polarized array and vertically polarized array.

11. The dual band antenna system of claim 1, further comprising a reflector configured to reflect a radiation pattern of the horizontally polarized antenna array or vertically polarized antenna array.