Diffraction of a Plane Wave by a Strip Grating
Diffraction of a Plane Wave by a Strip Grating
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带状光栅对平面波的衍射
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
E. Viterbo
中科院分区：
文献类型：
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作者：
V. Daniele;M. Gilli;E. Viterbo
本文给出了平面电磁波以任意角度入射到由无限长金属薄带构成的条形光栅上衍射的正则问题的解，并给出了带宽与带间宽度的任意关系式。利用Wiener-Hopf方法，在带宽和带间距相等的情况下，得到了带隙的精确解。透射系数和反射系数的数值可以以简单的方式评估到任何期望的精度。在一定的频率范围内，不同的入射角的曲线图。给出了TE模散射矩阵的封闭形式。
ABSTRACT The solution of a canonical problem regarding the diffraction of a plane electromagnetic wave incident, with an arbitrary angle, upon a strip grating formed by infinitely long thin metallic ribbons is found. The formulation is given for any relation between the width of the ribbons and the width between the ribbons. The exact solution is obtained by using Wiener-Hopf techniques in the case of equal width of the ribbon and the spacing. The numerical values of the transmission and reflection coefficients can be evaluated in a simple manner to any desired accuracy. Plots are given for different angles of incidence in a certain frequency range. The closed form of the TE modes scattering matrix is also given.