PIEZO-BASED CIRCUIT FOR MODIFYING FUNCTIONALITY OF RFID TAGS
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United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Jul 5, 2024
filing date -
Jul 5, 2024
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Abstract
A radio frequency identification (RFID) tag comprising a tag integrated circuit (IC), an antenna coupled to the tag IC, and an impedance tuned circuit coupled to the antenna, wherein the impedance tuned circuit configured to tune a circuit impedance of the antenna based on power received by the impedance tuned circuit. The RFID tag further comprises a piezo electric energy harvesting module coupled to the impedance tuned circuit, wherein the piezo electric energy harvesting module is configured to supply the power to the impedance tuned circuit.
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