Power harvester design for passive UHF RFID tag using a voltage boosting technique

被引：99

作者：

Shameli, Amin ^{[2
]}

Safarian, Aminghasem

Rofougaran, Ahmadreza

Rofougaran, Maryam

De Flaviis, Franco

机构：

[1] Univ Calif Irvine, Dept Elect Engn & Comp Sci, Irvine, CA 92697 USA

[2] Braodcom Corp, Irvine, CA 92617 USA

[3] Univ Calif Irvine, Dept Elect & Comp Sci, Irvine, CA 92697 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2007年 / 55卷 / 06期

关键词：

charge pump; impedance transformation; power harvester; RF identification (RFID) system; transponder; UHF RFID;

D O I：

10.1109/TMTT.2007.896819

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a guideline to design and optimize a power harvester circuit for an RF identification transponder. A power harvester has been designed and fabricated in a CMOS 0.18-mu m process that operates at the UHF band of 920 MHz. The circuit employs an impedance transformation circuit to boost the input RF signal that leads to the improvement of the circuit performance. The power harvester has been optimized to achieve maximum sensitivity by characterizing both the impedance transformation network and the rectifier circuit and choosing the optimum values for the circuit parameters. The measurement results show sensitivity of - 14.1 dBm for dc output voltage of 1 V and the output current of 2 mu A that corresponds to the output power of 2 mu W.

引用

页码：1089 / 1097

页数：9

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