Radiation characteristics of rectangular patch antennas with a laminated ground plane

Author

Kiang, J.-F.

Author_Institution

Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan

Volume

143

Issue

2

fYear

1996

fDate

4/1/1996 12:00:00 AM

Firstpage

107

Lastpage

112

Abstract

In modern aeronautical and automobile industries, composite materials are becoming increasingly popular for building the vehicular surface. The antenna engineer may face the situation of needing to design patch radiators above the composite material instead of a conductor ground plane. The input impedance and radiation patterns of a rectangular patch antenna attached to a laminated ground plane by using an integral equation approach is studied herein. The effects of composite lamina, substrate thickness and current probe location on the input impedance and radiation patterns are analysed. It is observed that the bandwidth of the patch antenna can be increased significantly when the substrate thickness is reduced. This observation is contrary to the conventional microstrip antenna concept and can be used to design a wideband microstrip radiator

Keywords

antenna radiation patterns; electric impedance; integral equations; laminates; microstrip antennas; bandwidth; composite materials; current probe location; input impedance; integral equation approach; laminated ground plane; radiation patterns; rectangular patch antennas; substrate thickness; wideband microstrip radiator;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:19960232

Filename

494664