A 920-MHz Dual-Mode Receiver with Energy Harvesting for UHF RFID Tag and IoT
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作者
SYSTEM; SOLAR
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刊物名称
Electronics
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年、卷、文献号
2020, 9, 1042
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关键词
SYSTEM; SOLAR
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摘要
A low-power dual-mode receiver is presented for ultra-high-frequency (UHF) radio frequency identification (RFID) systems. The reconfigurable architecture of the tag is proposed to be compatible with low-power and high-sensitivity operating modes. The read range of RFID system and the lifetime of the tag are increased by photovoltaic, thermoelectric and RF energy-harvesting topology. The receiver is implemented in a 0.18-mu m standard CMOS process and occupies an active area of 0.65 mm x 0.7 mm. For low-power mode, the tag is powered by the rectifier and the sensitivity is -18 dBm. For high-sensitivity mode, the maximum PCE of the fully on-chip energy harvester is 46.5% with over 1-mu W output power and the sensitivity is -40 dBm with 880 nW power consumption under the supply voltage of 0.8 V.
