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A UHF RFID Reader Transceiver for China standard (840~925 MHz) as well as meeting the protocols of EPC Class-1 Gen-2 and ISO/IEC 18000-6C is presented. To suppress the large self-jammer from transmitter to receiver, an on-chip self-jammer cancellation (SC) circuits and a fully-integrated DC-offset Cancellation (DCOC) circuits with quickly time-varying cut-off frequency are proposed to kill the self-jammer...
A 1.8-V 0.18..m CMOS direct-conversion Tuner for UHF band mobile digital TV applications is presented. To meet the stringent requirements of Noise Figure (NF) and IIP3, a capacitor cross-coupled (CCC) common-gate LNA and a novel high-linearity, low-flicker noise Gilbert Mixer are adopted. The LNA achieves 26 dB variable gain by using digital controlled current-steering technique and a resistive attenuator...
This paper presents a UHF band (840 MHz~925 MHz) RFID reader transceiver design for the protocols of EPC Class-1 Gen-2 and ISO/IEC 18000-6C. The architecture and modules for the proposed transceiver are described and implemented in a standard 0.18 μm CMOS process. To suppress the leakage signal from transmitter to receiver, directional coupler and leakage cancellation circuit are introduced in the...
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