Design of high gain, broadband resonant cavity antenna with meta-material inspired superstrate

被引：13

作者：

Das, Satyadeep ^{[1
]}

Sahu, Sudhakar ^{[1
]}

机构：

[1] KIIT, Sch Elect Engn, Bhubaneswar, Odisha, India

来源：

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2019年 / 100卷

关键词：

Metamaterials (MTM); Resonant Cavity Antenna (RCA); Cylindrical Dielectric Resonator Antenna (CDRA); METAMATERIAL;

D O I：

10.1016/j.aeue.2018.12.021

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 broadband high gain planar meta-material based Resonant Cavity Antenna (RCA) operating at C-band is proposed. The RCA is modeled using simple ray tracing method. The unit cell metamaterial consists of Artificial Magnetic Conductor (AMC) and square patch laminated on either side of a lossy commercial dielectric material of dielectric constant 4.4 & thickness 1.6 mm, is used as the superstrate to design RCA. Square patch is the capacitive type and that AMC as inductive. Effects of the reflection phase of the substrate decide the high gain of the antenna. A cylindrical dielectric resonator antenna (CDRA) is embedded into the cavity as a feed. The proposed antenna achieves 22.4 dBi gain with 2 layers of 4 x 4 array superstrate with a bandwidth of around 5.1 GHz. The full-wave analysis is performed to extract the impedance matching, radiation pattern & gain of the composite RCA. A prototype antenna is fabricated and tested for verification of experimental results which was found to be well correlated. It also shows that the proposed RCA achieves -10 dB impedance bandwidth of 72.72% ranging from 4 to 9.1 GHz with a high gain around 22.4 dBi. (C) 2019 Elsevier GmbH. All rights reserved.

引用

页码：39 / 46

页数：8

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