Compact Square Quadrifilar Spiral Antenna with circular polarization for UHF mobile RFID Reader

被引：0
|
作者：
Son, Wang-Ik [1 ]
Lee, Han-Lim [1 ]
Lee, Moon-Que [2 ]
Min, Sang-Bo [3 ]
Yu, Jong-Won [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Elect Engn & Comp Sci, 373-1 Guseong Dong, Daejeon 305701, South Korea
[2] Univ Seoul, Seoul, South Korea
[3] Actenna Corp, Seoul, South Korea
来源：
2010 ASIA-PACIFIC MICROWAVE CONFERENCE | 2010年
关键词：
Quadrifilar spiral antenna; UHF mobile RFID reader antenna; circular polarization;
D O I：
暂无
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：
A compact square quadrifilar spiral antenna (QSA) with right-hand circular polarization for mobile UHF passive radio frequency identification (RFID) reader is presented. The proposed QSA consists of four spiral antennas fed by microstrip feed network. The proposed reader antenna matching is optimized by using the matching condition for a small 4-port antenna. Experimental results show that the QSA of size 60 x 60 x 17 mm(3) has a 3-dB beamwidth of more than 130, the front-to-back ratio of more than 15 dB, the peak gain of 2.5 dBic and the axial ratio under 2 dB.
引用
收藏
页码：2271 / 2274
页数：4
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