DESIGN OF A WIDEBAND RECTANGULAR LOOP TAG ANTENNA FOR UHF RFID LIBRARY MANAGEMENT

被引:4
|
作者
Kim, Uisheon [1 ]
Choi, Jaehoon [1 ]
机构
[1] Hanyang Univ, Dept Elect & Comp Engn, Seoul 133791, South Korea
关键词
antennas; RFID; tag; UHF;
D O I
10.1002/mop.25219
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
In this letter, we propose a wideband rectangular loop tag antenna for ultra-high frequency radio frequency identification library management systems. The proposed antenna has a small matching loop for conjugate impedance matching with the impedance of a tag IC. The impedance bandwidth of the proposed antenna is broadened by lengthening the vertical sides of a rectangular loop. We considered the effects of books in designing the tag antenna. The optimized tag antenna, which is 35 HMI X 90 nun in size, has a wide impedance bandwidth of 170 MHz for SI, less than 10 dB. The maximum reading distance of a single tag is about 5 in, and the concurrent reading distance of 19 arranged tags is 1 in. (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1439-1445.2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25219
引用
收藏
页码:1439 / 1445
页数:7
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