A finite difference approach that employs an asymptotic boundary condition on a rectangular outer boundary for modeling two-dimensional transmission line structures

Author

Gordon, Richard K. ; Fook, Set Hin

Author_Institution

Dept. of Electr. Eng., Mississippi Univ., University, MS, USA

Volume

41

Issue

8

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

1280

Lastpage

1286

Abstract

The derivation of three asymptotic boundary conditions is presented. Techniques for implementing each of these on finite difference meshes with rectangular outer boundaries are discussed. Numerical results obtained using these boundary conditions in the finite difference analysis of both shielded and unshielded transmission lines are shown. The authors present detailed convergence studies on the use of each of these boundary conditions and discuss the memory requirements of each

Keywords

finite difference methods; mesh generation; microstrip lines; shielding; waveguide theory; asymptotic boundary condition; finite difference approach; memory requirements; meshes; microstrip lines; rectangular outer boundary; shielded transmission lines; two-dimensional transmission line structures; unshielded transmission lines; Boundary conditions; Convergence; Dielectric substrates; Distributed parameter circuits; Equations; Finite difference methods; Finite element methods; Microstrip; Microwave circuits; Transmission lines;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.241666

Filename

241666