Optimization of TLM schemes based on the general symmetrical condensed node

Author

Trenkic, Vladica ; Christopoulos, Christos ; Benson, Trevor M.

Author_Institution

Dept. of Electr. & Electron. Eng., Nottingham Univ., UK

Volume

45

Issue

3

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

457

Lastpage

465

Abstract

A general symmetrical condensed node (GSCN) for the transmission-line modeling (TLM) method is derived from first principles, based on the establishment of a mapping between field quantities and voltage pulses, averaging at the node centers quantities at the boundaries and differencing of Maxwell´s equations. The degrees of freedom offered by this formulation permit the development of adaptable nodes, where the mix of stubs and links can be chosen in a manner to optimize the dispersion characteristics. Results are shown confirming that the adaptable nodes can reduce substantially the dispersion and remove polarization-dependent errors

Keywords

Maxwell equations; dispersion (wave); electromagnetic wave polarisation; electromagnetic wave propagation; optimisation; transmission line theory; Maxwell´s equations; TLM; adaptable nodes; dispersion characteristics; field quantities; general symmetrical condensed nod; links; polarization dependent errors; stubs; transmission line modeling; voltage pulses; Councils; Difference equations; Impedance; Material properties; Maxwell equations; Polarization; Symmetric matrices; Transmission line matrix methods; Transmission lines; Voltage;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.558660

Filename

558660