Unconditionally Stable Z-Transform ADI-PML Algorithm for Lorentzian Double Negative Meta-Materials |
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Authors: | Omar Ramadan |
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Affiliation: | (1) Computer Engineering Department, Eastern Mediterranean University, Gazi Magusa, Mersin 10, Turkey |
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Abstract: | Unconditionally stable formulations of the anisotropic perfectly matched layer (APML) are presented for truncating double negative (DNG) meta-material finite difference time domain (FDTD) grids. In the proposed formulations, the Z-transform theory is employed in the alternating direction implicit FDTD (ADI-FDTD) scheme to obtain update equations for the field components in the DNG meta-material domains. Numerical examples carried out in one dimensional Lorentzian type DNG meta-material domains are included to show the validity of the proposed formulations. |
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Keywords: | Double Negative (DNG) Meta-material Alternating Direction Implicit (ADI) Finite Difference Time Domain (FDTD) Anisotropic Perfectly Matched Layer (APML) Z-Transform |
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