High-gain UWB double slot vivaldi antenna loaded with metasurface and semi-elliptical slots

被引：1

作者：

Zou, Qian ^{[1
]}

Gu, Zhen ^{[1
]}

Xie, Rensheng ^{[1
]}

Zhang, Zhongxiang ^{[2
]}

Zhang, Hualiang ^{[3
]}

Ding, Jun ^{[1
]}

机构：

[1] East China Normal Univ, Sch Phys & Elect Sci, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China

[2] Hefei Normal Univ, Ahhui Prov Key Lab Simulat & Design Elect Informat, Hefei, Peoples R China

[3] Univ Massachusetts, Dept Elect & Comp Engn, Lowell, MA USA

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2023年 / 65卷 / 08期

基金：

中国国家自然科学基金;

关键词：

double slot Vivaldi antenna (DSVA); high directivity; metasurface; ultra-wideband operation; DIPOLE ARRAY ANTENNA; ENHANCEMENT;

D O I：

10.1002/mop.33713

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：

In this work, an ultra-wideband double slot Vivaldi antenna (DSVA) loaded with a novel wideband nonresonant metasurface is proposed to enhance the gain. The semi-elliptical slots are etched on both sides of the ground plane of the DSVA to improve the current distribution. In addition, the nonresonant metasurface composed of WiFi-shaped unit cells could maintain a stable high refractive index in the operating bandwidth of 1-18 GHz, which could bend the outgoing wave to the end-fire direction. Both the original antenna and the proposed antenna are simulated, fabricated, and characterized. The measured results are in good accordance with the simulated ones. The return losses of both antennas are less than -10 dB in the frequency range of 2-13.4 GHz, while the gain of the proposed antenna is improved from 13.6 to 16.3 dBi with a maximum gain enhancement of 3.1 dB.

引用

页码：2412 / 2417

页数：6

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