METHOD AND SYSTEM FOR A RFID TRANSPONDER WITH CONFIGURABLE FEED POINT FOR RFID COMMUNICATIONS
First Claim
1. A method for communication, the method comprising:
- receiving RF signals via a leaky wave antenna of a radio frequency identification (RFID) transponder; and
modulating an amplitude of a backscattered signal associated with said received signals by controlling an input impedance of said RFID transponder, wherein said input impedance is controlled by switching between a plurality of feed points of said leaky wave antenna.
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Accused Products
Abstract
A Method and system for a RFID transponder with configurable feed point for RFID communications is provided. In this regard, an RFID transponder may receive RF signals via a leaky wave antenna and modulate an amplitude of a backscattered signal associated with the received RF signals by switching between a plurality of feed points of the leaky wave antenna to vary an input impedance of said RFID transponder. Each of the plurality of feed points may be located in a different position in the resonant cavity of the leaky wave antenna. The input impedance may be controlled by switching a load in and out of a receive path of the RFID transponder. The leaky wave antenna may be integrated within and/or on an integrated circuit, an integrated circuit package, or a combination thereof.
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Citations
20 Claims
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1. A method for communication, the method comprising:
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receiving RF signals via a leaky wave antenna of a radio frequency identification (RFID) transponder; and modulating an amplitude of a backscattered signal associated with said received signals by controlling an input impedance of said RFID transponder, wherein said input impedance is controlled by switching between a plurality of feed points of said leaky wave antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15)
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11. A system for communication, the system comprising:
one or more circuits for use in an RFID transponder comprising a leaky wave antenna, said one or more circuits being operable to; receive RF signals via a leaky wave antenna of a radio frequency identification (RFID) transponder; and modulate an amplitude of a backscattered signal associated with said received RF signals by switching between a plurality of feed points of said leaky wave antenna to vary an input impedance of said RFID transponder. - View Dependent Claims (13, 16, 17, 18, 19, 20)
Specification