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A UHF RFID reader receiver is implemented in 0.18μm CMOS. The direct-conversion receiver consists of an LNA, passive mixers, baseband PGAs and LPFs. As high as 18.5dBm measured IIP3 of the RF front-end is achieved by using passive mixers driven by 25% duty cycle square wave LO. The receiver has a sensitivity of -77dBm in the normal mode and -87dBm in the LBT mode. The total power dissipation in the...
Aiming at the specified protocol of EPC global Class-1 Generation-2, design considerations are expatiated to a novel structure of transmitter front-end for mobile RFID reader with 0.18 um CMOS process. The transmitter front-end consists mainly of an up-conversion mixer, a linear power amplifier (PA) and a non-linear PA. Controlled by the reader's working status, the implemented scheme can transmit...
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