Compact Circularly Polarized Patch Antenna With Wide Axial-Ratio Beamwidth

被引：42
|
作者：
Wang, Meng-Shuang [1 ]
Zhu, Xiao-Qi [1 ]
Guo, Yong-Xin [2 ,3 ]
Wu, Wen [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Ministerial Key Lab JGMT, Nanjing 210094, Jiangsu, Peoples R China
[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
[3] Natl Univ Singapore, Suzhou Res Inst, Suzhou 215123, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
Axial ratio (AR); circular polarization (CP); patch antenna; BAND SATELLITE ANTENNA; ENHANCEMENT; ARRAYS;
D O I：
10.1109/LAWP.2018.2813160
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：
This letter presents a compact circularly polarized patch antenna with wide axial-ratio (AR) beamwidth. The simulation reveals that by etching two pairs of asymmetric slots on the patch and loading coupled strips, the phase differences between the radiated orthogonal fields become flatter and maintain approximately at 90 degrees over a wide angular range; hence, a wide AR beamwidth is achieved. Experimental results agree well with the simulation results. Particularly, this antenna achieves a wide AR beamwidth of 188 degrees in both the principal and diagonal planes.
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页码：714 / 718
页数：5
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