Design of a Quad-Polarization-Agile Antenna Using a Switchable Impedance Converter

被引：26
作者：
Sun, Hucheng [1 ,2 ]
Pan, Zhiqiang [1 ,2 ]
机构：
[1] Nanjing Univ Informat Sci & Technol, Jiangsu Collaborat Innovat Ctr Atmospher Environm, Nanjing 210044, Jiangsu, Peoples R China
[2] Nanjing Univ Informat Sci & Technol, Res Ctr Appl Electromagnet, Nanjing 210044, Jiangsu, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2019年 / 18卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Aperture-coupled patch antenna; linear and circular polarizations; reconfigurable converter; RECONFIGURABLE PATCH ANTENNA;
D O I：
10.1109/LAWP.2018.2888843
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 letter presents a novel quad-polarization-agile aperture-coupled antenna using a reconfigurable impedance converter. The designed reconfigurable converter can achieve impedance and phase changes under the control of p-i-n diodes. Based on this converter, a quad-mode switchable feeding network can be produced. Utilizing the feeding network to excite a dual-polarized aperture-coupled patch antenna, polarization reconfigurability is realized. By switching the p-i-n diodes, two orthogonal linear polarizations (LPs) and two orthogonal circular polarizations can be generated. Measurement results show that its return-loss bandwidth is wider than 2.5% at LP modes, its axial-ratio bandwidth is better than 1.8%, and its cross polarizations are below -20 dB for all the states.
引用
收藏
页码：269 / 273
页数：5
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