Design of a Small-Size Broadband Circularly Polarized Microstrip Antenna Array

被引：6
|
作者：
Zhou, Pingyuan [1 ]
Zhang, Zhuo [2 ]
He, Mang [1 ]
Hao, Yihang [1 ]
Zhang, Chuanfang [1 ]
机构：
[1] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China
[2] Chinese Acad Sci, Inst Elect, Beijing 100190, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION | 2018年 / 2018卷
基金：
中国国家自然科学基金;
关键词：
BANDWIDTH;
D O I：
10.1155/2018/5691561
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 small-size 2 x 2 broadband circularly polarized microstrip antenna array is proposed in this article. The array has four broadband dual-feed U-slot patch antenna elements with circular polarization, and the sequential feeding technique is used to further enhance the 3 dB axial ratio bandwidth. The lateral size of the fabricated array is as small as 1.33 lambda(0) x 1.33 lambda(0), and the profile is only 0.04 lambda(0). Measured results show that the overlapped -10 dB reflection coefficient and the 3 dB AR bandwidth is 53%, and the variation of the measured realized gain is less than I dB for S-band satellite communications (1.98-2.2 GHz).
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页数：10
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