具有表面阻抗准周期空间扰动截面的金属平面上的Bragg现象

Proceedings of XIth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic Acoustic Wave Theory Pub Date : 2006-10-01 DOI:10.1109/DIPED.2006.314292

V. Borulko

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引用次数: 4

摘要

本文考虑了具有空间振荡表面阻抗段的完美导电平面上的波旁轴波束与准表面波的耦合现象。磁场横向分量的表示采用纵向平滑变化的空间谐波展开。得到了空间谐波复幅的积分方程组。电流分布的解是用矩量法求得的。计算了不同入射角下散射场的角图。在准表面波激发下，观察到散射光束共振增强的现象。所提出的数值方法在具有大量“周期”的准周期结构的情况下具有优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Bragg Phenomena on Metal Plane with Section of Quasiperiodic Spatial Perturbation of Surface Impedance

In this paper we consider phenomena of coupling of wave paraxial beam and quasisurface wave at perfectly conducting plane with segment of spatially oscillating surface impedance. Expansion in spatial harmonics that smoothly vary in longitudinal direction is used for presentation of transversal component of magnetic field. System of integral equations for complex amplitudes of spatial harmonics is obtained. Solutions for current distributions are found by method of moments. Angular patterns of scattering field are evaluated for different angles of incidence. Phenomenon of resonance increasing scattered beam is observed if quasisurface wave is excited. Proposed numeric method has advantages in cases of quasiperiodic structures with large number of "periods"

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Proceedings of XIth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic Acoustic Wave Theory

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