Numerical modeling of dielectric-resonator antennas in a complex environment using the method of moments

Author

Liu, Zhijun ; Chew, Weng Cho ; Michielssen, Eric

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

Volume

50

Issue

1

fYear

2002

fDate

1/1/2002 12:00:00 AM

Firstpage

79

Lastpage

82

Abstract

Aperture coupled dielectric resonator antennas (DRAs) that reside above a layered background are analyzed using the method of moments (MoM). Dyadic Green´s functions for the layered medium are derived in a simple and effective manner and the Rao-Wilton-Glisson (RWG) function is used to expand both electric and magnetic currents. A transmission-line technique is used to compute the antenna-input impedance. Numerical results obtained for both hemispheric and rectangular DRAB agree well with published measurement results

Keywords

Green´s function methods; UHF antennas; antenna theory; dielectric resonators; electric impedance; inhomogeneous media; method of moments; microwave antennas; transmission line theory; MoM; RWG function; Rao-Wilton-Glisson function; antenna-input impedance; aperture coupled dielectric resonator antennas; complex environment; dyadic Green´s functions; electric currents; hemispheric DRA; layered medium; magnetic currents; method of moments; numerical modeling; rectangular DRA; transmission-line technique; Aperture antennas; Aperture coupled antennas; Couplings; Dielectric resonator antennas; Green´s function methods; Magnetic analysis; Moment methods; Numerical models; Transmission lines; Transmitting antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.992566

Filename

992566