Rectangular dielectric resonator antenna with polarization reconfigurable characteristic

被引：8
|
作者：
Liu, Beijia [1 ]
Qiu, Jinghui [1 ]
Wang, Changhui [1 ]
Wang, Nannan [1 ]
Li, Guoqiang [2 ]
机构：
[1] Harbin Inst Technol, Dept Microwave Engn, Harbin 150001, Heilongjiang, Peoples R China
[2] Harbin Kejia Gen Mech & Elect Co, Dept Automat Image Recognit, Harbin, Heilongjiang, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2019年 / 61卷 / 03期
基金：
中国国家自然科学基金;
关键词：
adjustable feed network; dielectric resonator antenna; polarization reconfigurable antenna;
D O I：
10.1002/mop.31608
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：
A rectangular dielectric resonator antenna (DRA) with multiple polarization modes is proposed in this study. The antenna is fed by adjustable feed network composed by Wilkinson power divider and tunable phase shift elements. On this reconfigurable design, it can operate in left-handed circular polarization, right-handed circular polarization, and linear polarization (LP) modes. The 3-dB axial ratio bandwidth of 30.2% for CP modes and impedance bandwidth of 33.3% for CP states are obtained. The maximum gains are 5.7 dBic and 6.34 dBi for CP and LP states. A prototype is built on the FR4 substrate with ideal switches and tested to validate the design. Simulated and measured results showed good agreement on the polarization reconfigurable performances of interest. The proposed DRA can be applied to modern wireless system with polarization diversity requirements.
引用
收藏
页码：766 / 771
页数：6
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