Wideband circularly polarised patch antenna with multi-section λ/4 transmission lines

被引：2
|
作者：
Wu, Qiong-Sen [1 ]
Zhang, Xiao [2 ]
Zhu, Lei [3 ]
Zhang, Gary [1 ,4 ]
机构：
[1] Guangdong Univ Technol, Sch Informat Engn, Guangzhou 510006, Guangdong, Peoples R China
[2] Shenzhen Univ, Coll Informat Engn, ATR Natl Key Lab Def Technol, Shenzhen 518060, Peoples R China
[3] Univ Macau, Fac Sci & Technol, Dept Elect & Comp Engn, Macau, Peoples R China
[4] GDUT, Synergy Innovat Inst, Heyuan 517000, Peoples R China
来源：
ELECTRONICS LETTERS | 2019年 / 55卷 / 22期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; broadband antennas; antenna feeds; wideband circularly polarised patch antenna; patch radiator; feeding circuit; antenna structure; multisection transmission lines; parasitic radiation; filter design theory; axial ratio response;
D O I：
10.1049/el.2019.2609
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 wideband circularly polarised patch antenna with multi-section lambda/4 transmission lines is proposed. The multi-section lines are directly connected to the patch radiator. The feeding circuit and patch are on the same layer, which makes it easy for integration. There is no coupling structure, and consequently, the parasitic radiation from the feeding circuit can be minimised. The whole antenna structure is designed according to the traditional filter design theory. Two minima in the axial ratio response come up to achieve wideband characteristic. Finally, the proposed antenna structure and wideband performances are experimentally verified by an antenna prototype.
引用
收藏
页码：1172 / 1173
页数：2
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