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
收藏
页码：1810 / 1813
页数：4
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