Title :
Crank-Nicolson Reformulation of ADI-FDTD PML Extensions
Author :
Rubio, R. Godoy ; Garcia, Salvador G. ; Bretones, A. Rubio ; Martín, R. Gómez
Author_Institution :
Dept. de Ingenieria de Comunicaciones, Univ. de Malaga
Abstract :
The usual approach found in the literature to extend the perfectly matched layers (PMLs) absorbing technique to the alternating direction implicit finite-difference time-domain (ADI-FDTD) method employs the so-called ADI-FDTD procedure. In this letter, we show that these extensions can also be systematically reformulated as perturbations of Crank-Nicolson schemes
Keywords :
finite difference time-domain analysis; Crank-Nicolson reformulation; FDTD; finite-difference time-domain methods; perfectly matched layers; Algebra; Finite difference methods; Guidelines; Helium; Magnetic fields; Maxwell equations; Perfectly matched layers; Stability; Systematics; Time domain analysis; Alternating direction implicit finite-difference time-domain (ADI-FDTD) method; perfectly matched layers (PMLs); unconditional stability;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.880684
