Miniaturized Dual-Band Embedded NZI Metasurface Antenna with Front-to-Back Radiation Ratio Enhancement

被引：0

作者：

Dawar P. ^{[1
]}

Abdalla M.A. ^{[2
]}

机构：

[1] Electronics and Communication Engineering Department, Guru Tegh Bahadur Institute of Technology, Delhi

[2] Electromagnetic Waves Group, Department of Electronic Engineering, Military Technical College, Cairo

来源：

Progress In Electromagnetics Research B | 2022年 / 95卷

关键词：

D O I：

10.2528/PIERB22020404

中图分类号：

学科分类号：

摘要：

In this paper, a novel miniaturized dual-band embedded near-zero index (NZI) metasurface-based patch antenna is presented. A new methodology based on loading a narrowband microstrip patch antenna (resonating at 4.6 GHz) by a metasurface embedded in the middle of the antenna's substrate is introduced. The loaded antenna has a dual-band resonance of bandwidths of 15% and 43% at 2 GHz and 4.6 GHz, respectively. The metasurface layer is an array of square holes such that there is no hole below the patch. The metasurface layer is designed as a near-zero-refractive-index material (NZRIM). By controlling the phase re ection properties of the structure, the antenna gain is increased by 5.5 dB, original bandwidth increased ten times and the front-to-back ratio improved from 7 to 187. Also, footprint miniaturization of 56.5% with a maximum size of (1:9λ0)2 is obtained. To the best of the authors' knowledge, such enhancement is the largest to date. © 2022, Progress In Electromagnetics Research B. All Rights Reserved.

引用

页码：61 / 79

页数：18