Gedney, An anisotropic perfectly matched layer-absorbing medium for the truncation of FDTD lattices. Russer, A nonlinear and dispersive APML ABC for FD-TD methods. Berenger, A perfectly matched layer for the absorption of electromagnetic waves. Hagness, Computational Electrodynamics: The Finite-Difference Time-Domain Method, 2nd ed. Numerical simulations validate the formulation by showing very good agreement between the perfectly matched layer-finite-difference time-domain (FDTD) results and the free-space analytic solutions.A. Two-dimensional (2-D) cylindrical and three-dimensional (3-D) spherical staggered-grid FDTD codes are written based on the time-domain versions of the equations. The formulation relies on the complex coordinate stretching approach. Numerical simulations validate the formulation by showing very good agreement between the perfectly matched layer-finite-difference time-domain (FDTD) results and the free-space analytic solutions.ĪB - Perfectly matched layers (PML's) are derived for cylindrical and spherical finite-difference time-domain (FDTD) grids. N2 - Perfectly matched layers (PML's) are derived for cylindrical and spherical finite-difference time-domain (FDTD) grids. The authors are with the Center for Computational Electromagnetics, Electromagnetics Laboratory, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801-2991 USA. This work was supported by AFOSR under MURI Grant F4-0025, ONR under Grant N0-0872, NSF under Grant NSF-ECS93-02145, and a CAPES/Brasilia scholarship. T1 - PML-FDTD in cylindrical and spherical grids
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