Photoconductive multi-resonator chipless RFID
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United States of America Patent
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Jun 27, 2017
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app pub date -
Dec 22, 2015
filing date -
Dec 22, 2015
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Abstract
A chipless RFID transponder is disclosed. The transponder comprises an antenna and a plurality of resonant structures that together define a spectral signature of the RFID transponder. Each of the resonant structures comprises conductive portions separated by interstitial regions. A reversible photoconductive material is disposed in the interstitial regions of the resonant structures between the conductive portions. The photoconductive material is positioned so as to shift the spectral signature of the RFID when exposed to radiation.
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