An analysis of antenna coupling between arrays on a polyhedron structure

Author

Miyashita, Hiroaki ; Sunahara, Yonehiko ; Ishii, Ryuji ; Katagi, Takashi ; Hashimoto, Tsutomu

Author_Institution

Mitsubishi Electr. Corp., Kanagawa, Japan

Volume

41

Issue

9

fYear

1993

fDate

9/1/1993 12:00:00 AM

Firstpage

1242

Lastpage

1248

Abstract

Antenna coupling between arrays on a polyhedron structure is investigated. First of all, a high-frequency asymptotic closed-form formula is derived for the mutual admittance between two linearly polarized circular microstrip antennas located on the different faces of a perfectly conducting wedge. The microstrip antennas are modeled by the cavity model, and the mutual coupling caused by the wedge-diffracted field is analyzed by the EMF method using Keller´s GTD diffraction coefficients for the diffracted field. Next, the antenna coupling between arrays is calculated and compared with an experimental result. Good agreement between them supports the theory. Finally, the properties of the antenna coupling are described by some numerical simulations

Keywords

antenna theory; electric admittance; electromagnetic wave diffraction; microstrip antennas; microwave antenna arrays; Keller´s GTD diffraction coefficients; antenna coupling; arrays; cavity model; diffracted field; geometrical theory of diffraction; high-frequency asymptotic closed-form formula; linearly polarized circular microstrip antennas; mutual admittance; mutual coupling; numerical simulations; perfectly conducting wedge; polyhedron structure; Admittance; Antenna arrays; Diffraction; Interference; Linear antenna arrays; Microstrip antenna arrays; Microstrip antennas; Mutual coupling; Polarization; Radar antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.247750

Filename

247750