Title :
Application of the Isoparametric Finite-Element Method to Integral Equations
Author :
Jeng, G. ; Lean, M.H. ; Wexler, A.
Author_Institution :
Department of Electrical Engineering University of Manitoba, Winnipeg, Canada R3T 2N2
Abstract :
A refined numerical technique, based on a variational approach using isoparametric finite-elements is presented for the solution of three-dimensional electromagnetic scattering problems. This technique allows a higher-order approximation of the unknown function over a bounding surface described by non-planar elements. The Rayleigh-Ritz procedure is used to discretize the integral equation. Kernel singularities are treated by separating them from the main integral and solving them analytically. A procedure for establishing the system matrix in a block-sparse form will be described [5].
Keywords :
Current density; Electromagnetic scattering; Finite element methods; Integral equations; Kernel; Magnetic fields; Polynomials; Rayleigh scattering; Solid modeling; Surface treatment;
Conference_Titel :
Microwave Conference, 1977. 7th European
Conference_Location :
Copenhagen, Denmark
DOI :
10.1109/EUMA.1977.332380