DESIGN OF BROADBAND CIRCULARLY POLARIZED DIELECTRIC RESONATOR ANTENNA USING IMPROVED FEED NETWORK

被引：3
|
作者：
Han, Rong-Cang [1 ,2 ]
Zhong, Shun-Shi [1 ]
Liu, Jing [1 ,3 ]
机构：
[1] Shanghai Univ, Sch Commun & Informat Engn, Shanghai 200072, Peoples R China
[2] Linyi Univ, Sch Sci, Dept Phys & Elect, Linyi 276000, Shandong, Peoples R China
[3] Shanghai Univ Elect Power, Sch Elect & Informat Engn, Shanghai 200090, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2014年 / 56卷 / 09期
基金：
中国国家自然科学基金;
关键词：
broadband antenna; circular polarization; dielectric resonator antenna; feed network;
D O I：
10.1002/mop.28550
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 design of a broadband dual-feed type circularly polarized rectangular dielectric resonator antenna is presented. Its feed network is of a switched line structure comprised of a 3-dB Wilkinson power divider and a wideband 90 degrees phase shifter, providing good impedance matching, equal power splitting, and consistent 90 degrees phase shifting over a wide bandwidth. The proposed antenna prototype has been fabricated and measured. The measurements verify that it exhibits advanced characteristics with an impedance bandwidth (VSWR <= 2) of 50.8%, an axial ratio bandwidth (AR <= 3 dB) of 41.7% and a 3-dB gain bandwidth of 45.5%. (C) 2014 Wiley Periodicals, Inc.
引用
收藏
页码：2191 / 2195
页数：6
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