MoM Solution to Scattering Problem on Multi-Region Composite Structures with Various Type Material Junctions

This paper develops a MoM-based full-wave solution to the scattering problem on arbitrary multi-region composite structure with various type junctions between dielectric and conducting regions. A special attention is paid to the treatment of basis functions (BF) on material junctions. In contrast to existing works, the standard RWG BF are supposed to be used and grouped according to the boundary conditions on contiguous interfaces. The proposed approach has been validated by comparison of the simulated results with those obtained by discontinuous Galerkin time domain (DGTD) method.