A synthetic function approach to the scattering from large objects by using incremental diffraction-type basis functions

This paper presents an innovative procedure that allow the full-wave analysis of electrically large/or complex objects at a reduced memory cost. The conventional MoM formulations are severely limited by the problem size, because it leads to large, dense and sometimes ill-conditioned matrices, with a consequent huge memory occupation and CPU time. Within the iteration-free method we propose here a method to treat large portion of perfectly metallic planar objects containing edges introducing a special type of basis functions.