Method and circuit for providing RF isolation of a power source from an antenna and an RFID device employing such a circuit
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United States of America Patent
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Apr 24, 2012
Grant Date -
Dec 17, 2009
app pub date -
Apr 16, 2009
filing date -
Oct 17, 2006
priority date (Note) -
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Abstract
An RFID device including:
- electronic circuitry suitable for an RFID device comprising a radio frequency section;an antenna;a battery which provides the device with power; andat least one quarter wavelength transmission line coupled between the battery and one or both of the electronic circuitry and the antenna.
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