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Fast fourier transform accelerated multilevel Green's function interpolation for mixed potential and direct field surface integral equations

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3 Author(s)
Schobert, D.T. ; Lehrstuhl fur Hochfrequenztech., Tech. Univ. Munchen, Munich, Germany ; Eibert, T.F. ; Schmidt, C.H.

For the solution of electromagnetic surface integral equation problems, a fast solver based on multilevel interpolation of the respective Green's functions is presented. Besides the commonly used electric current mixed-potential integral equation formulation (MPIE) of the electric field integral equation (EFIE), the effectiveness of a direct field formulation for very ill-conditioned low-frequency problems is shown. The superior efficiency of the presented algorithm is proved by several numerical examples.

Published in:

Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on

Date of Conference:

11-15 April 2011