Enhancement of reflection coefficient via modified ground plane of a multilayer microstrip patch antenna for X-band application

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Publication Details

Author list: Pornprachatham N., Theeradejvanichkul T.

Publisher: Hindawi

Publication year: 2017

Volume number: 2017-January

Start page: 2327

End page: 2328

Number of pages: 2

ISBN: 9781538632840

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85042173965&doi=10.1109%2fAPUSNCURSINRSM.2017.8073206&partnerID=40&md5=b9979470e92a3bc3e23923ce54a19952

Languages: English-Great Britain (EN-GB)

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Abstract

This paper presents an enhancement of reflection coefficient (|S11|) via modified ground plane geometry of a multilayer microstrip patch antenna in the X band. The ground plane designs include rectangle and V-shape. The rectangle is created by trimming the conductive layer on a full patch (referred to as "conventional") to size Ws ื Lg = 1188 ื 403.92 mil2. The Vshape ground plane is also created by trimming a full patch to a V pattern with 30ฐ angle. The designs are studied via an FEA method and the results are compared with the conventional (unmodified) ground plane. The modified rectangular ground plane has |S11| of -41.07 dB at 9.97 GHz and -10 dB BW of 210 MHz. The V-shape has |S11| of -27.43 dB at 9.97 GHz and -10 dB BW of 190 MHz. Comparing results with the unmodified ground plane, both designs reduce |S11| by 24.07 dB and 10.43 dB, respectively. Nonetheless, the -10 dB bandwidths only see slight improvement. ฉ 2017 IEEE.

Keywords

Modified ground plane, Patch antenna, Reflection coefficient, X band