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Performance Improvement of Small Arrays of Microstrip Antennas on Photonic Band Gap Substrates

Sudha, T and Vedavathy, TS (2001) Performance Improvement of Small Arrays of Microstrip Antennas on Photonic Band Gap Substrates. In: 2001 Asia-Pacific Microwave Conference. APMC 2001, 3-6 December, Taipei,Taiwan, Vol.2, 775 -778.

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Abstract

Patch antennas have some limitations such as restricted band-width of operation, low gain and a potential decrease in radiation efficiency due to surface wave losses. In this paper, the ability of a Photonic Band Gap (PBG) substrate to minimize the surface wave effects is analyzed for a high E,substrate. Instead of the conventional PBG, a metallodielectric structure is employed. A two element linear array and a four element planar array on the PBG substrate are found to give reduced levels of side lobe radiation, increased irectivity and a better front-to-back ratio.

Item Type: Conference Paper
Additional Information: Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 17 Feb 2006
Last Modified: 19 Sep 2010 04:23
URI: http://eprints.iisc.ernet.in/id/eprint/5402

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