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Broadband Suspended Microstrip Antenna For Circular Polarization

Kasabegoudar, VG and Vinoy, KJ (2009) Broadband Suspended Microstrip Antenna For Circular Polarization. In: Progress In Electromagnetics Research-Pier, 90 . pp. 353-368.

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Official URL: http://ceta.mit.edu/pier/pier90/23.09012901.pdf

Abstract

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% (S11 < -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.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to EMW Publishing.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 28 May 2009 07:33
Last Modified: 19 Sep 2010 05:30
URI: http://eprints.iisc.ernet.in/id/eprint/19925

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