Bidirectional circularly polarized microstrip antenna fed by coplanar waveguide

被引：0
|
作者：
Zhang Qian-yue [1 ]
Wang Guang-ming [1 ]
Xia Dong-yu [1 ]
机构：
[1] Air Force Engn Univ, Missile Inst, Sanyuan 713800, Peoples R China
来源：
2006 7TH INTERNATIONAL SYMPOSIUM ON ANTENNAS, PROPAGATION AND EM THEORY, VOLS 1 AND 2, PROCEEDINGS | 2006年
关键词：
coplanar waveguide (CPW); circular polarization (CP); bidirectional antenna;
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 novel bidirectional microstrip antenna fed by coplanar waveguide (CPW) is proposed to obtain circular polarization (CP) radiation. Two radiating patches, located on the front and back sides of the CPW respectively, are fed by coupling through the CPW open stub. Same rotation CP radiations in two opposite directions are achieved by adding perturbation segments at different sides of the square patches. The symmetrical characteristics of the antenna suppress the even mode in the CPW line. Measured results show that the proposed antenna can have an input impedance bandwidth of 11.6% and CP bandwidth of 1.86%. Left-hand circular polarization (LHCP) is found on both sides of the antenna. This bidirectional CP antenna is suited to be a reader antenna for the radio frequency identification (RFID) system.
引用
收藏
页码：405 / 407
页数：3
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