Analysis, design and implementation of semi-passive Gen2 tag

Wenyi Che,Yuqing Yang,Conghui Xu,Na Yan,Xi Tan,Qiang Li,Hao Min,Jie Tan

Orlando, FL（2009）

引用 26|浏览67

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摘要

An EPCglobal Gen2 compatible semi-passive (or be called battery-assisted passive) tag is proposed. The transmission link is studied to optimize power distribution in a backscatter RFID system. For long read range consideration, design targets for low power tag are given. The tag chip is implemented in SMIC 0.18 mum standard CMOS technology. A high efficiency AC-DC charge pump serves as a rectifier. A low power wake-up circuit detects the input energy level and controls a button cell battery to supply the chip. The equivalent tag power is 230 nW by measurement.

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关键词

backscatter rfid system,standard cmos technology,power distribution optimisation,cmos integrated circuits,transmission link,input energy level,semi-passive tag,power 230 nw,charge pump circuits,semipassive gen2 rfid tag,radiofrequency integrated circuits,low power wake-up circuit,ac-dc charge pump,size 0.18 mum,radiofrequency identification,power conversion efficiency,low power,cell battery,read range,telecommunication power supplies,conversion efficiency,circuits,backscatter,charge pump,energy states,cmos technology,energy levels,chip

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