Numerical Simulation of a UC-PBG Lens for Gain Enhancement of Microstrip Antennas

被引：9

作者：

Elwi, Taha A. ^{[1
]}

Al-Rizzo, Hussain M. ^{[2
]}

Rucker, Daniel G. ^{[1
]}

Song, Fei ^{[1
]}

机构：

[1] Univ Arkansas, Dept Appl Sci, Little Rock, AR 72204 USA

[2] Univ Arkansas, Dept Syst Engn, Little Rock, AR 72204 USA

来源：

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING | 2009年 / 19卷 / 06期

基金：

美国国家科学基金会;

关键词：

microstrip antenna; photonic band-gap structure; negative refractive index; directive antenna; PLANE;

D O I：

10.1002/mmce.20391

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Because of their versatility and ease of fabrication, Uniplanar Compact-Photonic Band Gap (UC-PBG) structures have been recently applied to microstrip antenna design. However, when the PBG structure is embodied on the ground plane of a conventional microstrip antenna, the resulting configuration suffers from strong backward radiation and reduced efficiency. In this article, a combined UC-PBG/ antenna structure is proposed to overcome the aforementioned drawbacks. The performance characteristics of a microstrip antenna positioned below a UC-PBG are examined using CST and Ansoft commercial software packages, which are based on the Finite Integration Technique (FIT) and the Finite Element Method (FEM), respectively. The proposed antenna demonstrates a remarkable improvement in the bore-sight gain, about 7.8 dBi at 2.64 GHz, compared with the corresponding conventional microstrip antenna and front-to-back ratio in excess of 22.8 dBi. (C) 2009 Wiley Periodicals, Inc. Int J RF and Microwave CAE 19: 676-684, 2009.

引用

页码：676 / 684

页数：9

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