A 950-MHz rectifier circuit for sensor network tags with 10-m distance

被引:303
作者
Umeda, T [1 ]
Yoshida, H
Sekine, S
Fujita, Y
Suzuki, T
Otaka, S
机构
[1] Toshiba Co Ltd, Corp Res & Dev Ctr, Mobile Commun Lab, Kawasaki, Kanagawa 2128582, Japan
[2] Toshiba Co Ltd, Corp Res & Dev Ctr, Adv Funct Mat Lab, Kawasaki, Kanagawa 2128582, Japan
[3] Toshiba Co Ltd, Corp Res & Dev Ctr, Human Cent Lab, Kawasaki, Kanagawa 2128582, Japan
关键词
bias voltage distributor; effective threshold voltage; high-sensitivity rectifier; radio-frequency identification (RFID); wireless power transmission;
D O I
10.1109/JSSC.2005.858620
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 [电气工程]; 0809 [电子科学与技术];
摘要
This paper presents a 950-MHz wireless power transmission system and a high-sensitivity rectifier circuit for ubiquitous sensor network tags. The wireless power transmission offers a battery-life-free sensor tag by recharging the output power of a base station into a secondary battery implemented with the tag. For realizing the system, a high-sensitivity rectifier with dynamic gate-drain biasing has been developed in a 0.3-mu m CMOS process. The measurement results show that the proposed rectifier can recharge a 1.2-V secondary battery over -14-dBm input RF power at a power conversion efficiency of 1.2%. In the proposed wireless system, this sensitivity corresponds to 10-m distance communication at 4-W output power from a base station.
引用
收藏
页码:35 / 41
页数:7
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