The convolutional PML for FDTD analysis: Transient electromagnetic absorption from DC to daylight

Abstract

The convolutional PML (CPML) was introduced ten years ago as an efficient implementation of Berenger's PML absorbing boundary within FDTD simulations. Numerous researchers and practitioners have demonstrated the benefits of the CPML for grid termination across a broad spectrum of electromagnetic applications. In this paper the basic formulation as well as a recently introduced high order implementation is revisited and its advantages to the EMC community are demonstrated.