PML-FDTD Method in Prolate Spheroidal Coordinates

摘要

This paper presents a three-dimensional (3-D) finite-difference time-domain (FDTD) formulation of Maxwell's equation and perfectly matched layers (PML) in 3-D prolate spheroidal coordinates. The perfectly matched layer formulation relies on the complex stretching coordinates approach. Numerical simulation result of the perfectly matched layer finite-difference time-domain (PML-FDTD) method shows very good agreement with reference solution computed on an extremely large space.