| Citation: |
Wang Xiao, Tian Jiayin, Yan Na, Min Hao. Analysis and Design of a Low-Cost RFID Tag Analog Front-End[J]. Journal of Semiconductors, 2008, 29(3): 510-515.
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Wang X, Tian J Y, Yan N, Min H. Analysis and Design of a Low-Cost RFID Tag Analog Front-End[J]. J. Semicond., 2008, 29(3): 510.
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Analysis and Design of a Low-Cost RFID Tag Analog Front-End
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Abstract
A new,low-cost RFID tag analog front-end compatible with ISO 14443A and ISO 14443B is presented.By substituting conventional multi-circle antenna with single-circle antenna,the package cost of the tag is greatly reduced.Based on this exasperate antenna performance,a new rectifier with high power conversion efficiency and low turn-on voltage is presented.The circuit is implemented in an SMIC 0.18μm EEPROM process.Measurement results show that with a 120kΩ load,the power conversion efficiency reaches as high as 36%.For a sinusoidal wave with magnitude of 0.5V,the output DC voltage reaches 1V,which is high enough for RFID tags.The read distance is as far as 22cm.-
Keywords:
- RFID,
- analog front-end,
- charge pump,
- low power,
- low voltage,
- single-circle antenna
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References
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Proportional views
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