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Multilevel MDA-CBI for fast direct solution of large scattering and radiation problems

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4 Author(s)
Heldring, A. ; Univ. Polytech. de Catalunya, Barcelona ; Rius, J.M. ; Tamayo, J.M. ; Parron, J.

This paper presents the multilevel MDA-CBI method for accelerated direct solution of scattering and radiation problems with the method of moments. The method has all the advantages of a direct solution (no convergence issues, very little marginal cost per excitation vector). For a medium size problem of about 70.000 unknowns it performs some 25 % better than the one level algorithm, but this advantage is expected to grow for larger problems since the computational complexity is considerably better, with a theoretically attainable value of N5/3log2N.

Published in:

Antennas and Propagation Society International Symposium, 2007 IEEE

Date of Conference:

9-15 June 2007

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