Truncating FDTD computational domains with perfectly matched layer regions backed by lossy ABCs

Abstract

A perfectly matched layer (PML) is terminated with lossy absorbing boundary conditions (ABCs) and used for truncating the FDTD computational domain. By terminating the PML,with a lossy ABC rather than a perfect electric conductor (PEC) a considerable reduction in the reflection errors is achieved at the expense of a very small increase in the computational time. (C) 1998 John Wiley & Sons, Inc.