UHF 대역 수동형 RFID 태그 전치부 설계
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0.18um CMOS based UHF passive RFID tag front-end and its verified performance are shown in this paper. Several key components are highlighted: a voltage multiplier based on the threshold voltage cancellation scheme, demodulator using current mode, and so on. Tag's modulation performance is verified using pulse width modulation scheme.