A Polarization-Reconfigurable Wideband High-Gain Antenna Using Liquid Metal Tuning

被引：26
|
作者：
Xu, Chang [1 ]
Wang, Zhengpeng [1 ]
Wang, Yi [2 ]
Wang, Peng [1 ]
Gao, Steven [3 ]
机构：
[1] Beihang Univ BUAA, Sch Elect & Informat Engn, Electromagnet Lab, Beijing 100191, Peoples R China
[2] Univ Birmingham, Dept Elect Elect & Syst Engn, Birmingham B15 2TT, W Midlands, England
[3] Univ Kent, Sch Engn & Digital Arts, Canterbury CT2 7NT, Kent, England
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2020年 / 68卷 / 08期
基金：
英国工程与自然科学研究理事会;
关键词：
Metals; Liquids; Bandwidth; Impedance; Broadband antennas; Gain; Liquid metal; polarization reconfigurable; Yagi antenna; MICROSTRIP PATCH ANTENNA; YAGI ANTENNA; FREQUENCY;
D O I：
10.1109/TAP.2020.2996773
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：
This article presents a polarization-reconfigurable wideband high-gain antenna based on liquid metal tuning. The antenna consists of a center-feed circular patch antenna with a C-shaped slot as the driven element. To broaden the bandwidth and improve the realized gain, a parasitic circular disc and 13 circular directors are employed. The direction of polarization can be tuned by changing the location of the liquid metal alloy contained in the tube. The relationship between the dimensions and the maximally achievable gain has been analyzed. The antenna has exhibited a -10 dB impedance bandwidth from 4.3 to 5.3 GHz (a fractional bandwidth of 21.2%). A 14.4 dBi gain is achieved at 5.3 GHz. The simulation and measurement results show good agreement with each other.
引用
收藏
页码：5835 / 5841
页数：7
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