Investigating three methods for improving the performance of the SIM algorithm

Author

Nitch, D.C. ; Fourie, A.P.C.

Author_Institution

Dept. of Electr. Eng., Univ. of the Witwatersrand, Johannesburg, South Africa

Volume

2

fYear

1994

fDate

20-24 June 1994

Firstpage

1166

Abstract

A sparse iterative method for solving electromagnetic problems has been implemented in an object-oriented version of NEC. The SIM is based on the generation of a sparse matrix which is factored and subsequently used in an iterative solution of a matrix equation. The paper investigates three methods of filling the sparse matrix. The three methods are compared by investigating the effect they have on the density of the sparse matrix and the number of iterations required to converge to a solution. It also reports on the use of an extrapolation technique in order to reduce the iteration count in the solution of the matrix equation.<>

Keywords

electromagnetism; extrapolation; iterative methods; sparse matrices; NEC; SIM algorithm; electromagnetic problems solution; extrapolation; matrix equation solution; object-oriented method; sparse iterative method; sparse matrix; Africa; Boundary conditions; Equations; Extrapolation; Filling; Iterative algorithms; Iterative methods; National electric code; Sparse matrices; Transmission line matrix methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1994. AP-S. Digest

Conference_Location

Seattle, WA, USA

Print_ISBN

0-7803-2009-3

Type

conf

DOI

10.1109/APS.1994.407883

Filename

407883