Wave Scattering from a Periodic Surface with Finite Extent: A Periodic Approach for TM Wave

Junichi NAKAYAMA
Toyofumi MORIYAMA
Jiro YAMAKITA

Publication
IEICE TRANSACTIONS on Electronics   Vol.E84-C    No.10    pp.1615-1617
Publication Date: 2001/10/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Electromagnetic Theory
Keyword: 
wave scattering and diffraction,  finite periodic surface,  periodic grating,  

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Summary: 
A periodic approach introduced previously is applied to the TM wave scattering from a finite periodic surface. A mathematical relation is proposed to estimate the scattering amplitude from the diffraction amplitude for the periodic surface, where the periodic surface is defined as a superposition of surface profiles generated by displacing the finite periodic surface by every integer multiple of the period . From numerical examples, it is concluded that the scattering cross section for the finite periodic surface can be well estimated from the diffraction amplitude for a sufficiently large .