All-analytical evaluation of the singular integrals involved in the Method of Moments

Tihon, Denis;Craeye, Christophe
(2018) IEEE Transactions on Antennas and Propagation — (2018)

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Abstract
Surface Integral Equation (SIE) methods routinely require the integration of the singular Green's function or its gradient over Basis Functions (BF) and Testing Functions (TF). Many techniques have been described in the literature for the fast and accurate computation of these integrals for TF that is located close to the BF. In this paper, we propose an all-analytical formula for the singular part of the integral for both the Electric and Magnetic Field Integral Equations (EFIE and MFIE). The method works for any flat polygonal BF and TF of any order, and proves to be competitive with existing techniques.
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Tihon, D., & Craeye, C. (2018). All-analytical evaluation of the singular integrals involved in the Method of Moments. IEEE Transactions on Antennas and Propagation. Published. https://doi.org/10.1109/TAP.2018.2803130 (Original work published 2018)