Title :
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
fDate :
3/1/1992 12:00:00 AM
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;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
