Differential Probe Fed Liquid Crystal-Based Frequency Tunable Circular Ring Patch Antenna

被引：21
作者：
Xu, Guanghui [1 ]
Peng, Hong-Li [1 ]
Sun, Changli [2 ]
Lu, Jian-Gang [2 ]
Zhang, Yaoping [1 ]
Yin, Wen-Yan [1 ,3 ]
机构：
[1] Shanghai Jiao Tong Univ, Key Lab, Minist Educ Design & Electromagnet Compatibil Hig, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Ctr Optoelect Mat & Devices, Shanghai 200240, Peoples R China
[3] Zhejiang Univ, Coll Informat & Elect Engn, Hangzhou 310058, Zhejiang, Peoples R China
来源：
IEEE ACCESS | 2018年 / 6卷
关键词：
Circular ring patch antennas; cavity model; nematic liquid crystal; differential probe fed; MICROSTRIP ANTENNA;
D O I：
10.1109/ACCESS.2017.2786870
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A differential probe-fed liquid crystal (LC)-based frequency tunable circular-ring patch antenna is presented. Besides, cavity model is extended to analyze the LC-based antenna for the differential operation. According to the cavity model, the permittivity and loss tangent of the LC are extracted from the measured differential reflection coefficients. Acceptable agreements among the measurement, simulation, and calculation for differential impedances, reflection coefficients, and radiation patterns are obtained and also validate the extraction method and model. More importantly, the extended cavity model can provide a deep physical insight into the LC-based antenna.
引用
收藏
页码：3051 / 3058
页数：8
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