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Implementation of radiation boundary conditions in the finite element analysis of electromagnetic wave propagation

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3 Author(s)
Sumbar, Edmund ; Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada ; Vermeulen, Fred E. ; Churte, F.S.

Radiation boundary conditions are formulated which permit the simulation of two-dimensional electromagnetic wave phenomena with the finite-element method using conventional elements over a bounded domain. Implementation of such boundary conditions preserves the symmetry of the global stiffness matrix with all the advantages that this implies, including economy of storage and solution. A number of wire-antenna systems have been modeled with this technique in a finite-element computer program called FEAST. The results demonstrate good agreement with published reference data

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:39 ,  Issue: 2 )