| Citation: |
Che Wenyi, Yan Na, Yang Yuqing, Min Hao. A Low Voltage,Low Power RF/Analog Front-End Circuit for Passive UHF RFID Tags[J]. Journal of Semiconductors, 2008, In Press.
Che W Y, Yan N, Yang Y Q, Min H. A Low Voltage,Low Power RF/Analog Front-End Circuit for Passive UHF RFID Tags[J]. J. Semicond., 2008, 29(3): 433.
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A Low Voltage,Low Power RF/Analog Front-End Circuit for Passive UHF RFID Tags
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Abstract
This paper presents a low voltage,low power RF/analog front-end circuit for passive ultra high frequency (UHF) radio frequency identification (RFID) tags.Temperature compensation is achieved by a reference generator using sub-threshold techniques.The chip maintains a steady system clock in a temperature range from -40 to 100℃.Some novel building blocks are developed to save system power consumption,including a zero static current power-on reset circuit and a voltage regulator.The RF/analog front-end circuit is implemented with digital base-band and EEPROM to construct a whole tag chip in 0.18μm CMOS EEPROM technology without Schottcky diodes.Measured results show that the chip has a minimum supply voltage requirement of 0.75V.At this voltage,the total current consumption of the RF/analog front-end circuit is 4.6μA.-
Keywords:
- RFID,
- tag,
- low voltage,
- low power,
- temperature compensation
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References
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Proportional views
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