Ka-Band Cavity-Backed Detached Crossed Dipoles for Circular Polarization

被引：26

作者：

Bai, Xue ^{[1
]}

Qu, Shi-Wei ^{[1
]}

Xia, Run-Liang ^{[1
]}

机构：

[1] UESTC, Sch Elect Engn, Chengdu 611731, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2014年 / 62卷 / 12期

基金：

中国博士后科学基金;

关键词：

Cavity-backed antennas; circular polarization; crossed dipoles; millimeter waves (mm-waves); WIDE-BAND; BOWTIE ANTENNA;

D O I：

10.1109/TAP.2014.2358688

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：

An implementation of circularly polarized crossed dipoles in millimeter-wave band is presented in this paper. Novel detached crossed dipoles have been designed to tackle the problems confronted by single-fed crossed dipoles in mm-wave band. An evolution procedure from conventional crossed dipoles to the proposed ones is given. Meanwhile, a metallic ridge is added in the cavity to provide a robust feeding structure. Measurements of an optimized antenna prototype show that it can achieve a bandwidth from 27 to 36.8 GHz for both AR <= 3 dB and vertical bar S-11 vertical bar <= -10 dB and an average broadside gain of 12.4 dBi. The measured results agree reasonably well with simulations. For reference to practical designs, studies on five critical parameters have also been performed in this paper.

引用

收藏

页码：5944 / 5950

页数：7

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