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Application of the Isoparametric Finite-Element Method to Integral Equations

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3 Author(s)
Jeng, G. ; Department of Electrical Engineering University of Manitoba, Winnipeg, Canada R3T 2N2 ; Lean, M.H. ; Wexler, A.

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].

Published in:

Microwave Conference, 1977. 7th European

Date of Conference:

5-8 Sept. 1977

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