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Reducing computational costs using a multi-region finite element method for electromagnetic scattering

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2 Author(s)
Paul, P. ; Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC ; Webb, J.P.

Electromagnetic scattering problems involving multiple scatterers can be solved by the finite element method using a single domain truncated with an absorbing boundary condition, but often it is more efficient to separate the single domain into several subdomains, separated by free-space, and to solve the set of subdomains iteratively. This multi-region method has been reported in the literature. Its relative computational cost is investigated and formulas for determining are provided when it is advantageous to use a multi-region against a single-region method.

Published in:

Microwaves, Antennas & Propagation, IET  (Volume:2 ,  Issue: 5 )