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- W2092402611 abstract "In this paper, a lumped directional coupler with a tunable reflector is proposed for an UHF passive RFID front-end system in which the sensitivity is limited by the isolation between transmitter and receiver. The proposed directional coupler can tunably eliminate TX-to-RX leakage caused by both the imperfect isolation of a directional coupler and the mismatch of antenna impedance which may be changed due to near-field environment. The measured result shows excellent TX-to-RX isolation above 70dB at 910MHz and 55dB over Korean UHF-RFID band." @default.
- W2092402611 created "2016-06-24" @default.
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- W2092402611 date "2009-01-01" @default.
- W2092402611 modified "2023-10-18" @default.
- W2092402611 title "Lumped directional coupler with a varactor tuned reflector for RFID applications" @default.
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- W2092402611 doi "https://doi.org/10.1587/elex.6.129" @default.
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