Abstract

The present research article presents the investigation of diffraction phenomenon of EM-plane wave by a non-symmetric plate of finite length under the influence of cold plasma. The Wiener–Hopf equation is formulated by boundary value problem related to this model and Fourier transform. The standard way of Wiener–Hopf procedure is used to tackle the resulting equation. Asymptotic expansion and modified stationary phase method are used to find the result for the diffracted wave by finite plate under the assumption of Neumann boundary conditions in an anisotropic medium. The case of an isotropic medium has been obtained by assigning the particular values to elements of permittivity tensor. The high-frequency signal can be assumed only when very large operating frequency is taken into account as compared to the cyclotron frequency. Various physical parameters for isotropic and anisotropic medium are discussed graphically.

中文翻译：

---

浸入冷等离子体中具有Neumann条件的有限板的EM波衍射

摘要

本文研究了在冷等离子体的影响下，有限长度的非对称平板对EM平面波的衍射现象的研究。Wiener-Hopf方程由与该模型和傅立叶变换有关的边值问题表示。Wiener–Hopf程序的标准方法用于求解所得方程。在各向异性介质中，采用Neumann边界条件，采用渐近展开法和改进的固定相法求出有限板衍射波的结果。通过向介电常数张量的元素分配特定值，可以获得各向同性介质。仅当考虑与回旋加速器频率相比非常大的工作频率时，才能假定高频信号。