Title :
Efficient TLM diakoptics for separable structures
Author :
Righi, M. ; Mongiardo, M. ; Sorrentino, R. ; Hoefer, W.J.R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
A novel procedure for the efficient application of diakoptics to the TLM (transmission line matrix) simulation of waveguide structures is described. This procedure is based on the expansion of the time-domain Green´s function for separable regions into eigenfunctions. The proposed procedure leads to a dramatic reduction of the numerical effort compared to the regular Johns matrix operation. The procedure has been applied to an inductive iris in order to demonstrate how it can be used to generate variable wideband absorbing boundaries that can be placed very close to the discontinuity.<>
Keywords :
Green´s function methods; eigenvalues and eigenfunctions; waveguide theory; TLM diakoptics; eigenfunctions; inductive iris; separable structures; time-domain Green´s function; transmission line matrix; variable wideband absorbing boundaries; waveguide structures; Computational modeling; Computer simulation; Diakoptics; Eigenvalues and eigenfunctions; Geometry; Green´s function methods; Iris; Radio frequency; Time domain analysis; Transmission line matrix methods;
Conference_Titel :
Microwave Symposium Digest, 1993., IEEE MTT-S International
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-1209-0
DOI :
10.1109/MWSYM.1993.276788
