Long range passive RFID-tag for sensor networks

被引:0
|
作者
Kitayoshi, H [1 ]
Sawaya, K [1 ]
机构
[1] Tohoku Univ, Hatchery Sq R&D 7, Aoba Ku, Sendai, Miyagi 9808579, Japan
关键词
passive RFID; sensor networks; long range transponder; microstrip antenna; multiplying rectifier;
D O I
暂无
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
A novel passive RFID tag for a long reading range composed of a divided microstrip antenna and a rectifying circuit boosting the DC voltage is proposed. Experimental study of fabricated passive tag using varactor diodes, in which 30 m range response can be, achieved at 860-950 MHz band, is described. Passive tags for temperature-monitoring system at 2.45 GHz band is also fabricated to demonstrate validity of proposed tags for a range longer than 9 m. The tags have sizes of 90x6Ox4 nun and 60x25x4 mm for 900 MHz and 2.45 GHz bands, respectively.
引用
收藏
页码:2696 / 2700
页数:5
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