A Dual-Polarized Pattern Reconfigurable Yagi Patch Antenna for Microbase Stations

被引：71
|
作者：
Deng, Wan-Qiang [1 ]
Yang, Xue-Song [1 ]
Shen, Cong-Song [1 ]
Zhao, Jianping [2 ]
Wang, Bing-Zhong [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Sichuan, Peoples R China
[2] Huawei Technol Co Ltd, Wireless Res Dept, Shanghai 201204, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2017年 / 65卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Dual-polarized antenna; H-shaped slots; microstrip antenna; pattern reconfigurable antenna; Yagi-Uda antenna; TO-SLOTLINE TRANSITION; WIDE-BAND; PLANAR ANTENNA;
D O I：
10.1109/TAP.2017.2741022
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：
A two-port pattern reconfigurable three-layered Yagi-Uda patch antenna with +/- 45 degrees dual-polarization characteristic is presented. A driven patch (DP) and two large parasitic patches (LPPs) are printed on the top side of the middle layer, and the middle and bottom layers share a common metal ground. Two microstrip feedlines printed orthogonally on the bottom side of the bottom layer are used to feed the DP through two H-shaped slots etched in the ground. The LPPs are connected to/disconnected from the ground controlled by switches. By adjusting the connection states of the LPPs, one wide-beam mode and three narrow-beam modes can be obtained in both polarizations. A small parasitic patch is printed on the top side of the top layer to improve the pattern coherence of the two polarizations. This antenna is studied by both simulation and measurement. The measured common bandwidth of the four modes in both polarizations is 3.32-3.51 GHz, and the isolations between two polarizations in all the modes are higher than 20 dB. The low-profile antenna is very suitable for microbase-station applications.
引用
收藏
页码：5095 / 5102
页数：8
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