A circularly polarized horn antenna with elliptical waveguide polarizer

被引：2

作者：

Yu, Haiyang ^{[1
]}

Yu, Junsheng ^{[1
]}

Liu, Xiaoming ^{[2
]}

Yao, Yuan ^{[1
]}

Chen, Xiaodong ^{[3
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China

[2] Anhui Normal Univ, Coll Phys & Elect Informat, Wuhu 241002, Anhui, Peoples R China

[3] Queen Mary Univ London, Sch Elect Engn & Comp Sci, London, England

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2019年 / 61卷 / 12期

基金：

中国国家自然科学基金;

关键词：

circularly polarized horn; elliptical waveguide polarizer; millimeter-wave antenna;

D O I：

10.1002/mop.31949

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：

In this article, a circularly polarized horn antenna with elliptical waveguide polarizer is proposed. By converting linear polarization into circular polarization in the elliptical waveguide polarizer, circularly polarized radiation can be realized by the proposed antenna in D-band. The observation shows that the proposed antenna achieves the impedance bandwidth of 16.7% for S11 < -10 dB from 110 to 130 GHz and the axial-ratio bandwidth of 11.7% from 114 to 128 GHz. The measured gain of the proposed antenna can reach the range 13.6-17.82 dBic from 110 to 130 GHz. Besides, the measured normalized beam of the proposed antenna at the far field is able to realize a sidelobe below -25 dB, as well as good axial symmetry. With the elliptical waveguide polarizer, it is obtained that the proposed antenna has the potential application of circularly polarized radiation in millimeter and sub-millimeter wave band.

引用

页码：2681 / 2686

页数：6

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