The mode features of an ideal-gap open-ring microstrip antenna

Author

Sultan, Mohammed A.

Author_Institution

Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA

Volume

37

Issue

2

fYear

1989

fDate

2/1/1989 12:00:00 AM

Firstpage

137

Lastpage

142

Abstract

A rigorous analysis of the features of the modes of an ideal-gap open-ring (closed ring with a cross cut) printed microstrip antenna is presented. General expressions for its radiation field are derived by using the cavity model, trigonometric identities, and the properties of the cylindrical functions. The solution and the computed results for the radiation patterns and the field distributions for the even and odd modes are presented. The solutions for the even modes are the same as those for the closed-ring printed microstrip antenna. The results for the radiation patterns and other antenna characteristics for the odd modes indicate the superiority in the radiation properties of the ideal-gap open ring when excited in the TM₁₂ mode over those of a closed ring

Keywords

antenna radiation patterns; antenna theory; microstrip antennas; TM₁₂ mode; cavity model; cylindrical functions; even modes; field distributions; ideal-gap open-ring; mode features; odd modes; printed microstrip antenna; radiation field; radiation patterns; trigonometric identities; Antenna radiation patterns; Arithmetic; Dielectric substrates; Distributed computing; Frequency; Genetic expression; Helium; Magnetic separation; Microstrip antennas; Permittivity;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.18698

Filename

18698