Homodyne RFID receiver and method
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United States of America Patent
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May 19, 2009
Grant Date -
Oct 25, 2007
app pub date -
Apr 24, 2007
filing date -
Nov 19, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
An RFID circuit comprises an RF carrier signal source, a hybrid coupled to the RF carrier signal source operable to generate an in-phase and a quadrature phase component of the RF carrier signal, a switch coupled to the hybrid operable to pass one of the in-phase and quadrature phase components of the RF carrier signal to its output, and a mixer coupled to the output of the switch operable to multiply one of the in-phase and quadrature phase component of the carrier signal and a received modulated carrier signal and generate a baseband signal.
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