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A low cost fully integrated single-chip UHF radio frequency identification(RFID) reader SoC for short distance handheld applications is presented.The SoC integrates all building blocks—including an RF transceiver,a PLL frequency synthesizer,a digital baseband and an MCU—in a 0.18μm CMOS process.A high-linearity RX frontend is designed to handle the large self-interferer.A class-E power amplifier with high power efficiency is also integrated to fulfill the function of a UHF passive RFID reader.The measured maximum output power of the transmitter is 20.28 dBm and the measured receiver sensitivity is-60 dBm.The digital baseband including MCU core consumes 3.91 mW with a clock of 10 MHz and the analog part including power amplifier consumes 368.4 mW.The chip has a die area of 5.1×3.8 mm~2 including pads.
A low cost fully integrated single-chip UHF radio frequency identification (RFID) reader SoC for short distance handheld applications is presented. The SoC integrates all building blocks-including an RF transceiver, a PLL frequency synthesizer, a digital baseband and an MCU-in a 0.18μm CMOS process. A high-linearity RX frontend is designed to handle the large self-interferer. A class-E power amplifier with high power efficiency is also integrated to fulfill the function of a UHF passive RFID reader. The measured maximum output power of the transmitter is 20.28 dBm and the measured receiver sensitivity is -60 dBm. The digital baseband includes MCU core consumes 3.91 mW with a clock of 10 MHz and the analog part includes power amplifier consumes 368.4 mW. The chip has a die area of 5.1 × 3.8 mm ~ 2 including pads.