RIFD device with microstrip antennas

Details RIFD device with microstrip antennas RIFD device with microstrip antennas

2011-08-23

2011-08-23

Dinh, Trinh (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S846000, C343S829000, C340S572100, C235S492000

Reexamination Certificate

active

08004468

ABSTRACT:
A Radio Frequency Identification (RFID) device according to one embodiment of the present invention includes a first microstrip antenna comprising a microstrip positioned towards a first side of the device, and a Radio Frequency—(RF-)reflective back plane spaced from the microstrip of the first microstrip antenna; a second microstrip antenna comprising a microstrip positioned farther from the first side of the device than the microstrip of the first microstrip antenna, and an RF-reflective back plane spaced from the microstrip of the second microstrip antenna; and circuitry for receiving signals from the first and second microstrip antennas, wherein the first and second microstrip antennas are each independently coupled to the circuitry.

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Office Action Summary from U.S. Appl. No. 11/470,968 mailed on Dec. 5, 2008.
Notice of Allowance from U.S. Appl. No. 11/470,968 mailed on Mar. 18, 2009.

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