Antenna Array Isolation For A Multiple Channel Communication System

• US 20110014959A1
• Filed: 07/17/2009
• Published: 01/20/2011
• Est. Priority Date: 07/17/2009
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Tassoudji, Mohammad A., Sampath, Hemanth
• Application Number:
  US12/505,318
• Publication Number:
  US 20110014959A1
• Time in Patent Office: Days
• US Class Current: 455/575.7
• CPC Class Codes: H01Q 1/007 specially adapted for indoor communication
• CPC Class Codes: H01Q 1/22 by structural association with other equipment or articles
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• 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 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00

Abstract

A multi-channel wireless communication device includes first and second antenna elements. The first antenna element, being of a first type, transmits and receives a first wireless communication signal over a first predetermined wireless channel. The second antenna element, being of a second type different than the first type, transmits and receives a second wireless communication signal over a second predetermined wireless channel, different from the first predetermined wireless channel.

Claims

1. A multi-channel wireless communication device comprising:

a first antenna element, being of a first type, for transmitting and receiving a first wireless communication signal over a first predetermined wireless channel; and

a second antenna element, being of a second type different than the first type, for transmitting and receiving a second wireless communication signal over a second predetermined wireless channel, different from the first predetermined wireless channel.

2. The multi-channel wireless communication device of claim 1,

wherein the first antenna element, being of the first type, has a first radiation pattern, and

wherein the second antenna element, being of the second type, has a second radiation pattern different from the first radiation pattern.

3. The multi-channel wireless communication device of claim 1,

wherein the first antenna element, being of the first type, has a first polarization, and

wherein the second antenna element, being of the second type, has a second polarization different from the first polarization.

4. The multi-channel wireless communication device of claim 1,

wherein the first antenna element, being of the first type, radiates in a first direction, and

wherein the second antenna element, being of the second type, radiates in a second direction different from the first direction.

5. The multi-channel wireless communication device of claim 1 wherein the first antenna element, being of the first type, further comprise one of the following types of antennas:

a slot antenna, a ceramic chip antenna, a monopole antenna, a planar inverted F antenna (PIFA), a wire inverted F antenna, and a donut antenna.

6. The multi-channel wireless communication device of claim 1 wherein the second antenna element, being of the second type, further comprise one of the following types of antennas:

a slot antenna, a ceramic chip antenna, a monopole antenna, a planar inverted F antenna (PIFA), a wire inverted F antenna, and a donut antenna.

7. The multichannel wireless communication device of claim 1 wherein the first and second predetermined wireless channels are wireless frequency sub-bands selected from 2.4 GHz and 5 GHz wireless bands.

8. The multichannel wireless communication device of claim 1 wherein the wireless communication device is a multi-channel wireless access point for a wireless local area network, wherein the multi-channel wireless access point is in communication with a plurality of wireless subscriber stations.

9. The multichannel wireless communication device of claim 1 wherein the wireless communication device is a multi-channel wireless subscriber station for a wireless local area network, wherein the multi-channel wireless subscriber station is in communication with a one or more multi-channel wireless access points.

10. The multichannel wireless communication device of claim 1 wherein the first and second antenna elements are ones of a respective plurality of pairs of antenna elements, for transmitting and receiving respective wireless telecommunications signals over respective predetermined wireless channels.

11. The multi-channel wireless communication device of claim 1 wherein the first and second antenna elements are configured so that as one of the first and second antenna elements is transmitting a wireless signal, the respective other one of the first and second antenna elements is receiving a wireless signal.

12. The multi-channel wireless communication device of claim 1 further comprising:

a radio frequency (RF) transceiver for generating the respective first and second wireless communication signals.

13. The multi-channel wireless communication device of claim 12 wherein the RF transceiver further comprises:

a first transmitter and a first receiver coupled to the first antenna; and

a second transmitter and a second receiver coupled to the second antenna.

14. A multi-channel wireless communication device comprising:

a first antenna element, being of a first type, for transmitting and receiving a first wireless communication signal over a first predetermined wireless channel;

wherein the first antenna element, being of the first type, has a first radiation pattern, has a first polarization, and radiates in a first direction; and

a second antenna element, being of a second type different than the first type, for transmitting and receiving a second wireless communication signal over a second predetermined wireless channel, different from the first predetermined wireless channel, wherein the second antenna element, being of the second type, has a second radiation pattern different from the first radiation pattern, has a second polarization different from the first polarization, and radiates in a second direction different from the first direction.

15. The multi-channel wireless communication device of claim 14 wherein the first antenna element, being of the first type, further comprise one of the following types of antennas:

a slot antenna, a ceramic chip antenna, a monopole antenna, a planar inverted F antenna (PIFA), a wire inverted F antenna, and a donut antenna.

16. The multi-channel wireless communication device of claim 14 wherein the second antenna element, being of the second type, further comprise one of the following types of antennas:

a slot antenna, a ceramic chip antenna, a monopole antenna, a planar inverted F antenna (PIFA), a wire inverted F antenna, and a donut antenna.

17. The multichannel wireless communication device of claim 14 wherein the first and second predetermined wireless channels are wireless frequency sub-bands selected from 2.4 GHz and 5 GHz wireless bands.

18. The multichannel wireless communication device of claim 14 wherein the wireless communication device is a multi-channel wireless access point for a wireless local area network, wherein the multi-channel wireless access point is in communication with a plurality of wireless subscriber stations.

19. The multichannel wireless communication device of claim 14 wherein the wireless communication device is a multi-channel wireless subscriber station for a wireless local area network, wherein the multi-channel wireless subscriber station is in communication with a one or more multi-channel wireless access points.

20. The multichannel wireless communication device of claim 14 wherein the first and second antenna elements are ones of a respective plurality of pairs of antenna elements, for transmitting and receiving respective wireless telecommunications signals over respective predetermined wireless channels.

21. The multi-channel wireless communication device of claim 14 wherein the first and second antenna elements are configured so that as one of the first and second antenna elements is transmitting a wireless signal, the respective other one of the first and second antenna elements is receiving a wireless signal.

22. The multi-channel wireless communication device of claim 14 further comprising:

a radio frequency (RF) transceiver for generating the respective first and second wireless communication signals.

23. The multi-channel wireless communication device of claim 22 wherein the RF transceiver further comprises:

a first transmitter and a first receiver coupled to the first antenna; and

a second transmitter and a second receiver coupled to the second antenna.