Frequency domain TLM applied to microwave heating

Author

Flockhart, C. ; Christopoulos, C.

Author_Institution

Nottingham Univ., UK

fYear

1996

fDate

10-12 Apr 1996

Firstpage

283

Lastpage

288

Abstract

The frequency-domain TLM method (TLM-FD) is used to find power distributions in dielectric loads inside multimode cavities. Results for the original TLM-FD node with all line impedances equal are compared to results for the same problem with the newer `distributed´ node that has all line phase constants equal. It is shown that the original node produces unacceptable errors on a problem with a graded mesh. Iterative techniques for use with TLM-FD are discussed and a study is made of the convergence of a problem when the permittivity is changed in steps, as would occur during the simulation of heating of a material with temperature dependent dielectric properties. A comparison is made of the run-time and storage requirements of a time-domain and frequency-domain TLM simulations

Keywords

convergence of numerical methods; TLM-FD; convergence; dielectric loads; distributed node; frequency domain TLM; graded mesh; iterative techniques; line impedances; line phase constants; microwave heating; multimode cavities; permittivity; power distributions; run-time; storage requirement; temperature dependent dielectric; time-domain TLM simulations;

fLanguage

English

Publisher

iet

Conference_Titel

Computation in Electromagnetics, Third International Conference on (Conf. Publ. No. 420)

Conference_Location

Bath

ISSN

0537-9989

Print_ISBN

0-85296-657-1

Type

conf

DOI

10.1049/cp:19960199

Filename

681135