FDTD Investigation on Electromagnetic Scattering from Two-Layered Rough Surfaces under UPML Absorbing Condition
Received Date:
October 29, 2008
Published Date:
February 28, 2009
Abstract
Electromagnetic scattering from one-dimensional two-layered rough surfaces is investigated by using finite-difference time-domain algorithm (FDTD). The uniaxial perfectly matched layer (UPML) medium is adopted for truncation of FDTD lattices, in which the finite-difference equations can be used for the total computation domain by properly choosing the uniaxial parameters. The rough surfaces are characterized with Gaussian statistics for the height and the autocorrelation function. The angular distribution of bistatic scattering coefficient from single-layered perfect electric conducting and dielectric rough surface is calculated and it is in good agreement with the numerical result with the conventional method of moments. The influence of the relative permittivity, the incident angle, and the correlative length of two-layered rough surfaces on the bistatic scattering coefficient with different
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About This Article
Cite this article:
LI Juan, GUO Li-Xin, ZENG Hao. FDTD Investigation on Electromagnetic Scattering from Two-Layered Rough Surfaces under UPML Absorbing Condition[J].
Chin. Phys. Lett. , 2009, 26(3): 034101.
DOI: 10.1088/0256-307X/26/3/034101
LI Juan, GUO Li-Xin, ZENG Hao. FDTD Investigation on Electromagnetic Scattering from Two-Layered Rough Surfaces under UPML Absorbing Condition[J]. Chin. Phys. Lett. , 2009, 26(3): 034101. DOI: 10.1088/0256-307X/26/3/034101
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