| 带新解调结构的UHF RFID标签低功耗模拟前端设计 |
| |
| 引用本文： | 李凤阳,毛陆虹,徐凯,马力远,王峥,陈力颖,张世林.带新解调结构的UHF RFID标签低功耗模拟前端设计[J].固体电子学研究与进展,2011,31(5). |
| |
| 作者姓名： | 李凤阳 毛陆虹 徐凯 马力远 王峥 陈力颖 张世林 |
| |
| 作者单位： | 天津大学电子信息工程学院,天津,300072 |
| |
| 基金项目： | 863计划重大项目(2008AA04A102); 国家自然科学基金资助项目(61072010) |
| |
| 摘 要： | 基于ISO/IEC 18000-6C协议,对UHF无源电子标签模拟前端中的ASK解调电路、整流器、稳压电路等进行低功耗设计。解调电路中微分电路的加入扩大了解调电路工作范围,在解调电路近距离工作时,可以更有效地解调。整流电路采用了零阈值MOS管代替肖特基二极管,降低芯片成本。整流稳压电路可稳定地为芯片供电,供电电压2 V,建立时间仅为25μs。电路采用SMIC 0.18μm 2P4M CMOS工艺进行流片,芯片面积720μm×390μm。测试得到模拟前端整体工作电流仅2.4μA,标签工作距离大于7 m。
|
| 关 键 词： | 射频识别 标签芯片 超高频 模拟前端 解调电路 |
A Low Power Analog Frond-end Design for UHF RFID Tag with a Novel Demodulator |
| |
| LI Fengyang,MAO Luhong,XU Kai,MA Liyuan,WANG Zheng,CHEN Liying,ZHANG Shilin.A Low Power Analog Frond-end Design for UHF RFID Tag with a Novel Demodulator[J].Research & Progress of Solid State Electronics,2011,31(5). |
| |
| Authors: | LI Fengyang MAO Luhong XU Kai MA Liyuan WANG Zheng CHEN Liying ZHANG Shilin |
| |
| Affiliation: | LI Fengyang MAO Luhong XU Kai MA Liyuan WANG Zheng CHEN Liying ZHANG Shilin(School of Electronics and Information Engineering,Tianjin University,Tianjin,300072,CHN) |
| |
| Abstract: | This work presents the design of the analog frond-end(AFE) circuits for a UHF RFID tag in compliance with the ISO/IEC 18000-6C protocol.The low power AFE circuits include a novel demodulator and a voltage rectifier as well as regulator.The ASK demodulator employs a differentiator circuit,which extends the voltage range of the input RF signal and solves the demodulating problem when the tag works close to a reader.In order to reduce the cost of the chip,NMOS transistors with zero threshold voltage are used i... |
| |
| Keywords: | RFID(radio frequency identification) tag UHF analog front-end(AFE) demodulator |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
