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).

引用

页数：10

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