Mutual coupling between reduced surface-wave microstrip antennas

Author

Khayat, Michael A. ; Williams, Jeffery T. ; Jackson, David R. ; Long, Stuart A.

Author_Institution

Dept. of Electr. & Comput. Eng., Houston Univ., TX, USA

Volume

48

Issue

10

fYear

2000

fDate

10/1/2000 12:00:00 AM

Firstpage

1581

Lastpage

1593

Abstract

An investigation of the mutual coupling between reduced surface-wave microstrip antennas is presented and compared with that for conventional microstrip antennas. Numerical results are presented from a theoretical analysis of the mutual coupling along with confirming experimental results. It is shown that for electrically thin substrates, the space-wave coupling, not the surface-wave coupling, is predominant for typical element spacing, for both the conventional and reduced surface-wave antennas. In addition, the mutual coupling behavior is examined using an asymptotic analysis, which demonstrates how the coupling falls off much faster with patch separation for reduced surface wave antennas compared to conventional microstrip patch antennas

Keywords

antenna radiation patterns; electromagnetic coupling; microstrip antenna arrays; asymptotic analysis; electrically thin substrates; mutual coupling; numerical results; reduced surface-wave microstrip antennas; space-wave coupling; Antennas and propagation; Dielectric substrates; Diffraction; Magnetic separation; Microstrip antenna arrays; Microstrip antennas; Mutual coupling; Patch antennas; Scattering; Surface waves;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.899675

Filename

899675