Method and system for dynamic range detection and positioning utilizing leaky wave antennas

• US 8,577,314 B2
• Filed: 06/09/2010
• Issued: 11/05/2013
• Est. Priority Date: 06/09/2009
• Status: Expired due to Fees

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Rofougaran, Ahmadreza, Rofougaran, Maryam
• Primary Examiner(s): Lee, John J
• Application Number:
  US12/797,203
• Publication Number:
  US 20100309040A1
• Time in Patent Office: 1,245 Days
• Field of Search: 455/456.1, 455/13.3, 455/63.4, 455/66.1, 455/67.11, 455/9, 455/82, 455/121, 455/272, 455/275, 455/276.1, 455/277.1, 455/129, 455/127.2, 455/110, 455/269, 455/41.3, 455/102, 342/104, 342/386, 342/909, 342/432
• US Class Current: 455/129
• CPC Class Codes: G01S 13/06 Systems determining position data of a target
• CPC Class Codes: G06K 7/10316 using at least one antenna particularly designed for interrogating the wireless record carriers antennas in general H01Q1/22
• CPC Class Codes: H01L 2224/16225 the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2224/32225 the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2224/73204 the bump connector being embedded into the layer connector
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/13091 Metal-Oxide-Semiconductor Field-Effect Transistor [MOSFET]
• CPC Class Codes: H01Q 1/2283 mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package
• CPC Class Codes: H01Q 13/20 Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
• CPC Class Codes: H01Q 13/22 Longitudinal slot in boundary wall of waveguide or transmission line H01Q13/203 takes precedence
• CPC Class Codes: H01Q 15/006 Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
• CPC Class Codes: H01Q 15/0066 said selective devices being reconfigurable, tunable or controllable, e.g. using switches
• CPC Class Codes: H01Q 15/23 Combinations of reflecting surfaces with refracting or diffracting devices
• CPC Class Codes: H01Q 19/06 using refracting or diffracting devices, e.g. lens radome H01Q1/42
• CPC Class Codes: H04B 1/0458 Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages matching circuits in general H03H
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 7/24 for communication between two or more posts wireless communication networks H04W

Abstract

Methods and systems for dynamic range detection and positioning utilizing leaky wave antennas (LWAs) are disclosed and may include configuring one or more LWAs to enable communication of signals in a particular direction. RF signals that are reflected from an object may be received via the LWAs, and a location of the object may be determined based on the received reflected RF signals. The velocity of the object may be determined based on a Doppler shift associated with the received reflected RF signals. A frequency chirped signal may be transmitted by the LWAs to determine a location of the object. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. LWAs may be situated along a plurality of axes in the wireless device. The LWAs may include microstrip or coplanar waveguides, where a cavity height is dependent on spacing between conductive lines in the waveguides.

Claims

1. A method for communication, the method comprising:

in a wireless communication device comprising one or more leaky wave antennas;

configuring said one or more leaky wave antennas to enable communication of signals in a particular direction;

receiving via said configured one or more leaky wave antennas, RF signals that are reflected from an object; and

determining a velocity and a location of said object based on received reflected RF signals.

2. The method according to claim 1, comprising determining said velocity of said object based on a Doppler shift associated with said received reflected RF signals.

3. The method according to claim 1, comprising chirping a frequency of an RF signal transmitted by said configured one or more leaky wave antennas.

4. The method according to claim 3, comprising determining a location of said object based on said received reflected RF signals resulting from said chirping of said frequency of said transmitted RF signal.

5. The method according to claim 1, comprising configuring a resonant frequency of said one or more leaky wave antennas utilizing micro-electro-mechanical systems (MEMS) deflection.

6. The method according to claim 1, wherein said one or more leaky wave antennas are situated along a plurality of axes in said wireless device.

7. The method according to claim 1, wherein said one or more leaky wave antennas comprise microstrip waveguides.

8. The method according to claim 7, wherein a cavity height of said one or more leaky wave antennas is dependent on spacing between conductive lines in said microstrip waveguides.

9. The method according to claim 1, wherein said one or more leaky wave antennas comprise coplanar waveguides.

10. The method according to claim 9, wherein a cavity height of said one or more leaky wave antennas is dependent on spacing between conductive lines in said coplanar waveguides.

11. A system for enabling communication, the system comprising:

one or more circuits for use in a wireless device comprising one or more leaky wave antennas, wherein said one or more circuits are operable to;

configure said one or more leaky wave antennas to enable communication of signals in a particular direction;

receive via said configured one or more leaky wave antennas, RF signals that are reflected from an object; and

determine a velocity and a location of said object based on received reflected RF signals.

12. The system according to claim 11, wherein said one or more circuits are operable to determine said velocity of said object based on a Doppler shift associated with said received reflected RF signals.

13. The system according to claim 11, wherein said one or more circuits are operable to chirp a frequency of an RF signal transmitted by said configured one or more leaky wave antennas.

14. The system according to claim 11, wherein said one or more circuits are operable to determine a location of said object based on said received reflected RF signals resulting from said chirping of said frequency of said transmitted RF signal.

15. The system according to claim 11, wherein said one or more circuits are operable to configure a resonant frequency of said one or more leaky wave antennas utilizing micro-electro-mechanical systems (MEMS) deflection.

16. The system according to claim 11, wherein said one or more leaky wave antennas are situated along a plurality of axes in said wireless device.

17. The system according to claim 11, wherein said one or more leaky wave antennas comprise microstrip waveguides.

18. The system according to claim 17, wherein a cavity height of said one or more leaky wave antennas is dependent on spacing between conductive lines in said microstrip waveguides.

19. The system according to claim 11, wherein said one or more leaky wave antennas comprise coplanar waveguides.

20. The system according to claim 19, wherein a cavity height of said one or more leaky wave antennas is dependent on spacing between conductive lines in said coplanar waveguides.