Multi-Rate FDTD Method for Fast Electromagnetic Simulation

Abstract

In this paper, we propose a fast electromagnetic simulation technique using multi-rate FDTD (finite-difference time-domain) method. In this work, the time step size is selected according to the grid cell size of each part in the given space. Then, this method can reduce the calculation costs without violating the stability condition. Finally, some electromagnetic simulations of the example 2-D free space are performed by the proposed method. From the simulation results, the validity and the efficiency of this technique is verified.