A CPW-fed broadband circularly polarized wide slot antenna with modified shape of slot and modified feeding structure

被引：11
作者：
Chen, Zhe-Feng [1 ]
Xu, Bo [1 ]
Hu, Jun [1 ]
He, Sailing [1 ,2 ]
机构：
[1] Zhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou 310058, Zhejiang, Peoples R China
[2] KTH Royal Inst Technol, Sch Elect Engn, S-10044 Stockholm, Sweden
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2016年 / 58卷 / 06期
关键词：
axial ratio; broadband antenna; circularly polarized; wide slot antenna; RADIATION; STRIPS;
D O I：
10.1002/mop.29817
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 low-profile, compact, concisely designed CPW-fed broadband circularly polarized wide slot antenna is proposed. By protruding the ground into the wide slot, the distribution of equivalent magnetic currents inside the slot is changed. Together with appropriate adjustment of the feeding structure, broad impedance bandwidth and broad axial ratio bandwidth (ARBW) can be achieved simultaneously. General design steps are given so that the antenna can be easily transplanted to other bands. The measured results show that the 3 dB ARBW is 1.85-3.15 GHz (52%) and the impedance bandwidth is 1.35-4.12 GHz (101.3%). Detailed design procedures and key parameters analysis are also given for further understanding of the antenna design. (c) 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1453-1457, 2016
引用
收藏
页码：1453 / 1457
页数：5
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