Scattering of a TM plane wave from a periodic surface with finite extent: Perturbation solution
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概要
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This paper deals with the singular behavior of the diffraction of transverse magnetic (TM) waves by a perfectly conductive triangular periodic surface at a low grazing limit of incidence. The wave field above the highest excursion of the surface is represented as a sum of Floquet modes with modified diffraction amplitudes, whereas the wave field inside a triangular groove is written as a sum of guided modes with unknown mode amplitudes. Then, two sets of equations are derived for such amplitudes. From the equation sets, all the amplitudes are analytically shown to vanish at a low grazing limit of incidence. From this fact, it is concluded analytically that no diffraction takes place and only reflection occurs at a low grazing limit of incidence for any period length and any triangle height. This theoretical result is verified by a numerical example.
- 社団法人電子情報通信学会の論文
- 2006-09-01
著者
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NAKAYAMA Junichi
Graduate School of Engineering and Resource Science, Akita University
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TAMURA Yasuhiko
Graduate School of Engineering and Design, Kyoto Institute of Technology
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Nakayama Junichi
Graduate School Of Engineering And Design Kyoto Institute Of Technology
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Tamura Yasuhiko
Graduate School Of Engineering And Design Kyoto Institute Of Technology
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OCHI Yujiro
Graduate School of Engineering and Design, Kyoto Institute of Technology
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Ochi Yujiro
Graduate School Of Engineering And Design Kyoto Institute Of Technology
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Tamura Yasuhiko
Graduate School Of Engineering And Design Kyoto Inst. Of Technol.
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