SYSTEM AND METHOD FOR USE IN WIRELESS COMMUNICATION EMPLOYING MULTIPLE ANTENNAS

• US 20070024510A1
• Filed: 06/21/2006
• Published: 02/01/2007
• Est. Priority Date: 07/26/2005
• Status: Abandoned Application

• Current Assignee: Lear Corporation
• Original Assignee: Lear Corporation
• Inventors: Ghabra, Riad, Nantz, John, Tang, Tom
• Application Number:
  US11/425,521
• Publication Number:
  US 20070024510A1
• Time in Patent Office: Days
• US Class Current: 343/711
• CPC Class Codes: E05Y 2400/664 by radio waves
• CPC Class Codes: G07C 9/00944 Details of construction or manufacture
• CPC Class Codes: H01Q 1/32 Adaptation for use in or on road or rail vehicles
• CPC Class Codes: H01Q 1/3233 particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
• CPC Class Codes: H01Q 21/30 Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
• CPC Class Codes: H04B 7/06 at the transmitting station
• CPC Class Codes: H04B 7/08 at the receiving station
• CPC Class Codes: H04B 7/12 Frequency diversity

Abstract

A system and method for use in wireless communication includes selectively connecting a communication circuit to one of multiple antennas. The system and method also include preventing the remaining antennas from interacting with the antenna connected to the communication circuit.

Claims

1. A system for use in wireless communication, the system comprising:

a communication circuit;

a plurality of antennas, each antenna optimized for operation in one of a plurality of designated frequency bands; and

a controller for selectively connecting the communication circuit to one of the plurality of antennas based on a desired one of the plurality of designated frequency bands, and for preventing the remaining ones of the plurality of antennas from interacting with the one of the plurality of antennas selectively connected to the communication circuit.

2. The system of claim 1 wherein the communication circuit comprises a transceiver.

3. The system of claim 1 wherein the communication circuit comprises a transmitter.

4. The system of claim 1 wherein the communication circuit comprises a receiver.

5. The system of claim 2 wherein the transceiver is for use in an automotive application.

6. The system of claim 3 wherein the transmitter is for use in an automotive application.

7. The system of claim 4 wherein the receiver is for use in an automotive application.

8. The system of claim 1 wherein the controller controls a first switch to selectively connect the communication circuit to one of the plurality of antennas, and wherein the controller controls at least a second switch to open the remaining ones of the plurality of antennas in order to prevent the remaining ones of the plurality of antennas from interacting with the one of the plurality of antennas selectively connected to the communication circuit.

9. The system of claim 1 wherein each of the plurality of antennas is optimized for operation in one of a plurality of designated frequency bands, and the controller is further for determining a desired one of the plurality of designated frequency bands for use in selectively connecting the communication circuit to the one of the plurality of antennas based on the desired one of the plurality of designated frequency bands.

10. The system of claim 9 wherein at least one of the plurality of designated frequency bands comprises a single frequency.

11. The system of claim 9 wherein each of the plurality of designated frequency bands comprises a single frequency.

12. A method for use in wireless communications, the method comprising:

selectively connecting a communication circuit to one of a plurality of antennas; and

preventing the remaining ones of the plurality of antennas from interacting with the one of the plurality of antennas selectively connected to the communication circuit.

13. The method of claim 12 wherein the communication circuit comprises a transmitter.

14. The method of claim 12 wherein the communication circuit comprises a receiver.

15. The method of claim 12 wherein the communication circuit comprises a transceiver.

16. The method of claim 12 further comprising:

controlling a first switch to selectively connect the communication circuit to one of the plurality of antennas; and

controlling at least a second switch to open the remaining ones of the plurality of antennas in order to prevent the remaining ones of the plurality of antennas from interacting with the one of the plurality of antennas selectively connected to the communication circuit.

17. The method of claim 12 wherein each of the plurality of antennas is optimized for operation in one of a plurality of designated frequency bands, the method further comprising determining a desired one of the plurality of designated frequency bands for use in selectively connecting the communication circuit to the one of the plurality of antennas based on the desired one of the plurality of designated frequency bands.

18. The method of claim 17 wherein at least one of the plurality of designated frequency bands comprises a single frequency.

19. The method of claim 17 wherein each of the plurality of designated frequency bands comprises a single frequency.

20. The method of claim 12 wherein the communication circuit is for use in an automotive application.