A Filtering Patch Antenna With Reconfigurable Quad-Polarization Diversity

被引：6
作者：
Sun, Yiqing [1 ,2 ]
Lin, Feng [1 ,3 ]
Zhao, De Hao [1 ,3 ]
Zhai, Zhen Jun [1 ,3 ]
Sun, Hou Jun [1 ,3 ]
Zhang, Xiu Yin [4 ]
机构：
[1] Beijing Inst Technol, Sch Integrated Circuits & Elect, Beijing 100081, Peoples R China
[2] City Univ Hong Kong, Dept Elect Engn, State Key Lab Terahertz & Millimeter Waves, Hong Kong, Peoples R China
[3] Beijing Key Lab Millimeter Wave & Terahertz Techn, Beijing 10081, Peoples R China
[4] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510006, Peoples R China
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2024年 / 71卷 / 03期
基金：
北京市自然科学基金;
关键词：
Filtering antenna; quad-polarization; radiation nulls; reconfigurable device; WIDE-BAND; COMPACT; FREQUENCY; POWER;
D O I：
10.1109/TCSII.2023.3327000
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 brief presents a filtering patch antenna with reconfigurable quad-polarization diversity. By loading parasitic patches and a Jerusalem-cross-shaped metal strip on a patch antenna, two radiation nulls are introduced to realize frequency selectivity. Then, to achieve reconfigurability, a feeding network with four switchable output modes is proposed. By switching the PIN diodes, the antenna realizes vertical linear-polarized (V-LP), horizontal linear-polarized (H-LP), left-hand circular-polarized (LHCP) and right-hand circular-polarized (RHCP) radiations while maintaining its intrinsic filtering characteristic. A prototype operating at 2.28 GHz is fabricated, and the measured 10-dB overlapped bandwidth of the four polarization states is 5.7%. The peak gains for the four states are higher than 6.65 dBi, and the overlapped 3-dB AR bandwidth is 7.89%.
引用
收藏
页码：1106 / 1110
页数：5
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