A Polarization-Reconfigurable Glass Dielectric Resonator Antenna Using Liquid Metal

被引：65
作者：
Chen, Zhe [1 ]
Wong, Hang [1 ]
Kelly, James [2 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, State Key Lab Terahertz & Millimeter Waves, Hong Kong, Peoples R China
[2] Queen Mary Univ London, Sch Elect Engn & Comp Sci, London E1 4NS, England
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2019年 / 67卷 / 05期
基金：
英国工程与自然科学研究理事会;
关键词：
Glass dielectric resonator antenna (DRA); liquid metal; polarization reconfiguration; polarizer; FREQUENCY;
D O I：
10.1109/TAP.2019.2901132
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 communication, we introduce a glass dielectric resonator antenna (DRA) incorporating a liquid-metal polarizer capable of polarization reconfiguration. The polarizer is formed by a type of liquid-metal alloy composed of gallium, indium, and tin. The antenna is capable of generating three different polarizations: a -45 degrees polarization (STATE 1), a +45 degrees polarization (STATE 2), and a y-axis polarization (STATE 3). The glass DRA is designed to operate at 2.4 GHz with a wide effective bandwidth (overlapped impedance bandwidths of the three states) of 18.0% and a high radiation efficiency of more than 80%. The experimental results agree well with the theoretical analyses.
引用
收藏
页码：3427 / 3432
页数：6
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