Analysis of EM scattering by large scale composite structures based on the time-domain iterative method

In accordance with the ideas of sub-domain, we proposed a time domain iterative hybrid method based on the Finite Difference Time Domain (FDTD) and time domain physical optics theory (TDPO) according to electromagnetic scattering from electrically large conductor and local structures materials. The mutual coupling scattering between structures was analyzed and parallel collaborative research method was discussed, and the target surface currents and scattering of incident wave excitation were calculated. We preliminary verify the accuracy of the simulation method through carrying out simulation experiments of typical composite structures, which provided reference to solve the large-scale composite structure simulation calculation of mutual coupling scattering problem.