Title :
Perfectly matched layer media for an unconditionally stable three-dimensional ADI-FDTD method
Author :
Liu, Gang ; Gedney, Stephen D.
Author_Institution :
Dept. of Electr. Eng., Kentucky Univ., Lexington, KY, USA
fDate :
7/1/2000 12:00:00 AM
Abstract :
A split field perfectly matched layer (PML) medium is introduced for the three-dimensional (3-D) alternating direction implicit (ADI) formulation of the finite-difference time-domain (FDTD) method. It is demonstrated that the ADI-FDTD method remains unconditionally stable with the inclusion of the PML. The effectiveness of the absorbing medium as a function of the time step is also demonstrated
Keywords :
Maxwell equations; electromagnetic wave absorption; finite difference time-domain analysis; numerical stability; 3D alternating direction implicit formulation; FDTD method; finite-difference time-domain method; perfectly matched layer media; split field PML medium; three-dimensional ADI-FDTD method; time step; unconditionally stable 3D ADI-FDTD method; Boundary conditions; Computational electromagnetics; Electromagnetic fields; Equations; Finite difference methods; Lattices; Perfectly matched layers; Polynomials; Termination of employment; Time domain analysis;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
