Compact Omnidirectional Antenna of Circular Polarization

被引：47
|
作者：
Yu, Yufeng [1 ]
Shen, Zhongxiang [2 ]
He, Sailing [1 ,3 ]
机构：
[1] Zhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou 310027, Zhejiang, Peoples R China
[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[3] Royal Inst Technol, Sch Electromagnet Engn, S-10044 Stockholm, Sweden
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2012年 / 11卷
关键词：
Bended monopole; circular polarization (CP); omnidirectional antenna;
D O I：
10.1109/LAWP.2012.2231392
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 omnidirectional antenna of circular polarization (CP) is presented for 2.4-GHz WLAN access-point applications. The antenna consists of four bended monopoles, which are simultaneously excited through an associated feeding network. The radiated horizontal and vertical field components are derived based on an analytical model, and the 90 degrees phase difference between them is shown to be naturally guaranteed. With a size of, 0.22 lambda(0) x 0.22 lambda(0) x 0.076 lambda(0), the antenna exhibits a bandwidth (vertical bar S-11 vertical bar <= -10 dB and AR <= 3 dB) of 3.56% and a left-handed CP average gain of 1.39 dB in the azimuth plane at 2.44 GHz.
引用
收藏
页码：1466 / 1469
页数：4
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