Trueman, “Approximate Crank-Nicolson schemes for the 2-D finitedifference time-domain method for TEz waves,” IEEE Trans. Zhao, “A novel implementation for two dimensional unconditionally stable FDTD method,” Microw. Zhang, “A finitedifference time-domain method without the courant stability condition,” IEEE Microw. Namiki, “A new FDTD algorithm based on alternating direction implicit method,” IEEE Trans. Hangess, Computational Electrodynamics: The Finite-Difference TimeDomain Method, 3rd ed., Boston, Artech-House, 2005. It has been shown that the proposed PML can not only overcome the Courant-Friedrich-Levy (CFL) stability constraint, but attenuate the propagating waves efficiently.Ī.
#Fdtd pml free#
A numerical test carried out in a 2D free space FDTD domain is provided to validate the proposed CNDGbased PML. Via incorporating the Crank-Nicolson Douglas-Gunn (CNDG) and the auxiliary differential equation (ADE) methods, respectively, the proposed PML formulations can take advantage of the unconditional stability of the CNDG method which has smaller numerical anisotropy than the existing alternately direction implicit (ADI) method.
Institute of Electromagnetics and Acoustics Xiamen University, Xiamen, 361005, ChinaĪuxiliary differential equation (ADE), Crank-Nicolson Douglas-Gunn (CNDG), finitedifference time-domain (FDTD), perfectly matched layer (PML) AbstractĪn efficient, unsplit-field and unconditional stable implementation of the stretched coordinate perfectly matched layer (SC-PML) is proposed for terminating the finite-difference time-domain (FDTD) method. School of Electronics and Information Engineering Tianjin Polytechnic University, Tianjin, 300387, China
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