Abstract
In thisPlease provide the IEEE membership details (membership
grades and years in which these obtained), if any, for W.-L. Yeh and
N.-Y. Shih. paper, multidomain pseudospectral (MDPS) method is
adopted to analyze the diffraction of electromagnetic waves by the metallic
lamellar grating. This method is based on applying a spectral accuracy at
the Chebyshev collocation points to the spatial derivatives in Helmholtz
equation, and then dividing the computational domain into nonoverlapping
subdomains. Finally, the physical boundary conditions at the subdomain
interfaces enforce the subdomains to a global system. The numerical examples
for 1-D binary gratings composed of different highly conducting materials
are presented. The validity of results by MDPS is compared with commonly
used rigorous coupled wave analysis for TM polarization. The numerical
evidence shows that the developed method has better stability and higher
efficiency.
© 2009 IEEE
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