Circularly Polarized Semi-Eccentric Annular Dielectric Resonator Antenna for X-Band Applications

被引：45

作者：

Lee, Jong Min ^{[1
]}

Kim, Sung-Jin ^{[1
]}

Kwon, Gina ^{[1
]}

Song, Chan Mi ^{[1
]}

Yang, Youngoo ^{[1
]}

Lee, Kang-Yoon ^{[1
]}

Hwang, Keum Cheol ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Elect & Elect Engn, Suwon 440746, South Korea

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷

基金：

新加坡国家研究基金会;

关键词：

Circular polarization; coaxial probe; dielectric resonator antenna; eccentric annular dielectric resonator;

D O I：

10.1109/LAWP.2015.2435052

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 letter, a compact single-feed circularly polarized dielectric resonator antenna is proposed for X-band applications. The radiator comprises a semi-eccentric annular dielectric resonator (DR), which is a semi-elliptical DR with a hollow elliptical cylinder. A vertical coaxial probe is located adjacent to a cutting surface of the DR to excite the proposed antenna. The two main design parameters, the aspect ratio of the elliptical DR and the feeding position, were optimized, and a prototype of the antenna was fabricated and tested. The experimental results exhibit a -10-dB reflection bandwidth of 29.14% (9.41-12.62 GHz) and a 3-dB axial-ratio bandwidth of 5.71% (10.37-10.98 GHz). The measured peak gain varies from 4.17 to 4.78 dBic.

引用

页码：1810 / 1813

页数：4

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