A Flexible SIE-DDM for EM Scattering by Large and Multiscale Problems.

A flexible surface integral equation domain decomposition method (SIE-DDM) with reverse operation self-consistent evaluation (ROSE) is proposed to analyze the electromagnetic (EM) scattering by electrically large, multiscale, perfect electrically conducting objects. ROSE is developed for the robust implementation of the Robin transmission condition between adjacent subdomains in SIE-DDM. By interpolating a set of plane waves on the touching faces, small linear systems are constructed, and the entries of the transmission matrix can be solved algebraically. In doing this, direct numerical integration involving complicated geometrical operations over a nonconformal mesh can be avoided. Several numerical results will be presented to validate the effectiveness of the proposed method. [ABSTRACT FROM AUTHOR]