A broadband stable gain antenna using nonuniform hexagonal-Slot metasurface

被引：3

作者：

Fan, Yue ^{[1
]}

Li, Zhi ^{[1
]}

Zheng, Zijun ^{[1
]}

Han, Guorui ^{[1
]}

Han, Liping ^{[1
]}

Zhang, Wenmei ^{[1
]}

机构：

[1] Shanxi Univ, Coll Phys & Elect Engn, Taiyuan, Shanxi, Peoples R China

来源：

ELECTROMAGNETICS | 2022年 / 42卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Broadband; hexagonal slot; nonuniform metasurface; stable gain; PATCH ANTENNA;

D O I：

10.1080/02726343.2022.2154465

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 paper demonstrates a broadband metasurface antenna with stable gain. A 4 x 4 square patches metasurface loaded with nonuniform hexagonal slots is proposed. To achieve stable radiation performance in broadband range, two characteristic modes with the same current direction are selected as operating modes of the metasurface. A slot antenna is employed to excite the metasurface. By combining the resonant modes of metasurface and slot antenna, the broadband is obtained. The measured results show that, the -10 dB impedance bandwidth of the proposed antenna is 4.36-8.21 GHz (61.2%), the 2 dB gain bandwidth is 4.36-7.2 GHz (49.1%), and the peak gain value reaches 10.6 dBi.

引用

页码：463 / 472

页数：10

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