Passive self-jammer cancellation in RFID systems
A self-jammer-cancellation circuit in an RFID system uses passive variable capacitance networks to attenuate phase-adjusted carrier signals, which are then combined with a received signal to reduce unwanted carrier signals in the received signal. The self-jammer-cancellation circuit also adjusts the...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A self-jammer-cancellation circuit in an RFID system uses passive variable capacitance networks to attenuate phase-adjusted carrier signals, which are then combined with a received signal to reduce unwanted carrier signals in the received signal. The self-jammer-cancellation circuit also adjusts the passive variable capacitance networks such that the overall capacitance of each network remains constant or the overall relationship of capacitances between the networks remains constant. |
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