Electromagnetic solution for composite metallic and material objects with FEBI method and multilevel complex source beam method

An electromagnetic solution with finite element boundary integral (FEBI) method and multilevel complex source beam (MLCSB) method, which is referred to as FEBI-MLCSB, is proposed for analyzing composite metallic and material objects. The MLCSB method and the translation invariance of the dyadic Green´s functions are derived into the boundary integration equation (BIE) to reduce the memory requirement and accelerate the solving process. Numerical results show the efficiency of the proposed method.