Cavity model analysis of differential dual-polarised annular-ring patch antenna

被引：3

作者：

Xu, Guanghui ^{[1
]}

Peng, Hong-Li ^{[1
]}

Zhang, Yaoping ^{[1
]}

Yin, Wen-Yan ^{[1
,2
]}

Mao, Jun-Fa ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Key Lab, Minist Educ Design & Electromagnet Compatibil Hig, Shanghai, Peoples R China

[2] Zhejiang Univ, Innovat Inst Electromagnet Informat & Elect Integ, Coll Informat Sci & Elect Engn, Hangzhou, Zhejiang, Peoples R China

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2019年 / 13卷 / 09期

基金：

中国国家自然科学基金;

关键词：

electromagnetic wave polarisation; microstrip antennas; antenna radiation patterns; cavity model analysis; annular-ring patch; four-port cavity model; acceptable agreements; radiation patterns; single-ended input impedance; adjacent modes TM; operating mode TM; symmetrical E-plane radiation pattern; cross polarisation level; port-to-port coupling impedance; RADIATION; IMPEDANCE;

D O I：

10.1049/iet-map.2018.5794

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：

The four-port cavity model is presented to study a differential dual-polarised annular-ring patch antenna operating at higher order mode TM12. Acceptable agreements among calculated, simulated, and measured impedances and radiation patterns are obtained. Theoretical analysis shows that the differential port-to-port coupling impedance is zero, and its isolation is theoretically infinite. The differential input impedance is about four times of the single-ended input impedance at the resonant frequency of higher order mode TM12. The differential operation can suppress the adjacent modes TM02 and TM22 near the operating mode TM12 and lead to a more symmetrical E-plane radiation pattern and lower cross polarisation level.

引用

页码：1389 / 1393

页数：5

共 22 条

[1] Dual-band, dual-polarised metallic slot transmitarray antenna [J].