Improved finite-difference formulation in frequency domain for three-dimensional scattering problems

Author

Beilenhoff, Klaus ; Heinrich, Wolfgang ; Hartnagel, Hans L.

Author_Institution

Inst. fuer Hochfrequenztechnik, Tech. Hochschule Darmstadt, Germany

Volume

40

Issue

3

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

540

Lastpage

546

Abstract

The finite-difference method in the frequency domain is a powerful tool for analyzing arbitrarily shaped transmission-line discontinuities and junctions. An improved formulation based on Maxwell´s equations in integral form is presented. It corresponds to the Helmholtz equation and reduces the numerical efforts in solving the large linear equation system considerably. The method is verified by comparison to previous work on microstrip

Keywords

difference equations; electromagnetic wave scattering; integral equations; strip lines; waveguide theory; Helmholtz equation; Maxwell´s equations; finite-difference method; frequency domain; integral form; linear equation system; three-dimensional scattering problems; transmission-line discontinuities; Finite difference methods; Frequency domain analysis; Integral equations; Magnetic fields; Magnetic materials; Maxwell equations; Scattering; Transmission line discontinuities; Transmission line matrix methods; Transmission lines;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.121730

Filename

121730