Perfectly matched layer termination for finite‐element meshes: Implementation and application
Youssry Y. Botros, John L. Volakis · Microwave and Optical Technology Letters · 1999
Perfectly matched layer PML absorbers deteriorate the condition of the resulting finite-element sparse systems.Therefore, poor con¨ergence scenarios are obser¨ed when an iterati¨e sol¨er is employed.In this work, we show that, by choosing the PML parameters in an optimal manner, substantial speedup in the solution con¨ergence is achie¨ed without affecting PML absorption.A robust preconditioned sol¨er with nearly no breakdown possibilities is suggested, implemented, and tested for two microwa¨e circuit applications.