Circularly Polarized Beam-Steering Antenna Array With Butler Matrix Network

被引：51
|
作者：
Liu, Changrong [1 ]
Xiao, Shaoqiu [1 ]
Guo, Yong-Xin [2 ]
Tang, Ming-Chun [1 ]
Bai, Yan-Ying [1 ]
Wang, Bing-Zhong [1 ]
机构：
[1] Univ Elect Sci & Technol China, Inst Appl Phys, Chengdu 610054, Peoples R China
[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2011年 / 10卷
关键词：
Antenna array; beam steering; butler matrix; circular polarization; rotation technique; DESIGN;
D O I：
10.1109/LAWP.2011.2176903
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 circularly polarized switched-beam patch antenna array with butler matrix is designed and experimentally demonstrated in this letter. With suitable rotation technique, circular polarized radiation can be improved for beam steering. Also, this technique enhances the axial-ratio (AR) bandwidth within its scanning angle. Measured results showed this array has an impedance and AR bandwidth over a frequency range of 5.75-6.2 GHz when the main beam of array is scanned to different directions. Good agreement is observed between simulation and measurement.
引用
收藏
页码：1278 / 1281
页数：4
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