一种用于无线识别系统的应答器IC

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications Pub Date : 1996-10-15 DOI:10.1109/PIMRC.1996.567555

Sau-Mou Wu, Jeng-Rern Yang, Tzen-Yi Liu

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引用次数: 10

摘要

提出了一种新型的无电池自供电应答器设计及其芯片布局。应答器分两阶段工作。首先，通过对来自RFID基站的询问射频场的电磁能量进行整流来给芯片通电;提取的能量被暂时储存起来，然后用来为整个电路供电。第二，应答器开始通过FSK调制将编码数据发送回基站。设计的主要部分采用了数字CMOS电路，因此设计简单，易于实现。电路的设计使得输出频率与天线的负载无关;仿真结果表明，天线的变化公差在/spl plusmn/10%以内。该设计与TIRIS系统兼容，TIRIS系统是德州仪器公司设计的一种流行的RFID产品。它在134.2和123.2 kHz频段运行。该布局占用约0.8 um/spl倍/0.8 um的面积。

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A transponder IC for wireless identification systems

A novel batteryless, self-powered transponder design as well as its chip layout is presented. The transponder operates in two phases. First, the chip is energized by rectifying the electromagnetic energy from the interrogating RF field from the RFID base station; the extracted energy is temporarily stored and is thereafter used to power the whole circuitry. Second, the transponder starts to transmit coded data by FSK modulation back to the base station. The major part of the design uses a digital CMOS circuit, thus it is simple and easy to implement. The circuit is designed such that the output frequencies are independent of the load of the antenna; the simulation results show that the tolerance of the antenna variation is within /spl plusmn/10%. The design is compatible with the TIRIS system, a popular RFID product designed by Texas Instruments. It operates in the 134.2 and 123.2 kHz frequency bands. The layout occupies about 0.8 um/spl times/0.8 um area.

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来源期刊

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications

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