A BROADBAND SUSPENDED MICROSTRIP ANTENNA FOR CIRCULAR POLARIZATION

被引：54

作者：

Kasabegoudar, V. G. ^{[1
]}

Vinoy, K. J. ^{[1
]}

机构：

[1] Indian Inst Sci, ECE Dept, Microwave Lab, Bangalore 560012, Karnataka, India

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2009年 / 90卷

关键词：

DESIGN;

D O I：

10.2528/PIER09012901

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 paper we propose a circularly polarized (CP) microstrip antenna on a suspended substrate with a coplanar capacitive feed and a slot within the rectangular patch. The antenna has an axial ratio bandwidth (< 3 dB) of 7.1%. The proposed antenna exhibits a much higher impedance bandwidth of about 49% (S-11 < -10 dB) and also yields return loss better than -15 dB in the useful range of circular polarization. Measured characteristics of the antenna are in good agreement with the simulated results. The radiation patterns indicate good cross polarization rejection and low back lobe radiations. The design proposed here can be scaled to any frequency of interest.

引用

页码：353 / 368

页数：16

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