Equivalence of propagation characteristics for the transmission-line matrix and finite-difference time-domain methods in two dimensions

Author

Simons, N.R.S. ; Bridges, E.

Author_Institution

Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada

Volume

39

Issue

2

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

354

Lastpage

357

Abstract

The equivalence of propagation characteristics for the transmission line matrix (TLM) and finite-difference-time-domain (FD-TD) methods in two dimensions is discussed. A propagation analysis of a TLM shunt node complete with permittivity and loss stubs and a dispersion analysis of the two-dimensional FD-TD method in an arbitrary medium are performed and yield dispersion relations. The relations are identical when the FD-TD method is operated at the upper limit of its stability range

Keywords

difference equations; dispersion relations; electromagnetic wave propagation; equivalent circuits; time-domain analysis; transmission line theory; EM waves; TLM shunt node; dispersion analysis; dispersion relations; finite-difference; loss stubs; propagation analysis; propagation characteristics; time-domain methods; transmission-line matrix; two dimensions; Dispersion; Electromagnetic modeling; Finite difference methods; Maxwell equations; Partial differential equations; Performance analysis; Permittivity; Time domain analysis; 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

10.1109/22.102983

Filename

102983