Moment method solution of aperture-coupled hemispherical dielectric resonator antenna using exact modal Green´s function

Author

Leung, K.W. ; Luk, K.M.

Author_Institution

Dept. of Electron. Eng., City Polytech. of Hong Kong, Kowloon, Hong Kong

Volume

141

Issue

5

fYear

1994

fDate

10/1/1994 12:00:00 AM

Firstpage

377

Lastpage

381

Abstract

An aperture-coupled hemispherical dielectric resonator (DR) antenna excited at the end-fire TE₂₂₁ mode has been studied. The exact magnetic-field Green´s function of the DR antenna is presented, and the moment method is used to solve the equivalent current in the slot. From the magnetic current, the return loss of the antenna configuration is evaluated. The results are compared with the single-mode results and measurements available in the literature. Compared with the single-mode theory, the solution of the present theory is very general in terms of the slot position and the frequency range

Keywords

Green´s function methods; antenna theory; dielectric resonators; losses; microstrip antennas; slot antennas; DR antenna; aperture-coupled antenna; end-fire TE₂₂₁ mode excitation; equivalent current; frequency range; hemispherical dielectric resonator antenna; magnetic current; magnetic-field Green´s function; microwave antenna; modal Green function; moment method solution; return loss; slot position;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:19941323

Filename

329891