A Cube-Based Scheme of IE-ODDM-MLFMA for Electromagnetic Scattering Problems

A cube-based scheme of integral-equation-based overlapped domain decomposition method with multilevel fast multipole algorithm (IE-ODDM-MLFMA) is proposed for the analysis of electromagnetic (EM) scattering problems. In this scheme, each bottom cube is located either inside an iterative region or inside the corresponding incident region, and the iterative and incident regions are complementary to each other from the bottom cube point of view, which makes it convenient to implement the ODDM in the frame of the MLFMA. Numerical examples are presented to validate the proposed scheme.