Hybrid Method of FDTD/PO for EM Scattering Simulation of Electrically Large Targets

When calculating the scattering field of electrically large targets with conventional full-wave method, such as the finite difference time domain (FDTD) method, huge memory and computing resources are consumed. This paper proposes a FDTD/PO hybrid electromagnetic simulation method to solve this problem. This method can save computing resources greatly while maintaining the accuracy of FDTD calculation. Numerical simulation results are given to verify the hybrid method.