A Numerical Scheme to Analyze 2D EM Scattering by a Dielectric Cylinder Under Oblique-Incidence

ZHOU Hou-xing; HONG Wei; XU Feng

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A Numerical Scheme to Analyze 2D EM Scattering by a Dielectric Cylinder Under Oblique-Incidence

更新时间：2025-07-16

- A Numerical Scheme to Analyze 2D EM Scattering by a Dielectric Cylinder Under Oblique-Incidence
- Acta Electronica Sinica Vol. 31, Issue 1, Pages: 117-122(2003)
- 作者机构：
  
  东南大学毫米波国家重点实验室,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN011
- Published：2003
- 稿件说明：
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ZHOU Hou-xing, HONG Wei, XU Feng. A Numerical Scheme to Analyze 2D EM Scattering by a Dielectric Cylinder Under Oblique-Incidence[J]. Acta Electronica Sinica, 2003, 31(1): 117-122.
DOI：

ZHOU Hou-xing, HONG Wei, XU Feng. A Numerical Scheme to Analyze 2D EM Scattering by a Dielectric Cylinder Under Oblique-Incidence[J]. Acta Electronica Sinica, 2003, 31(1): 117-122. DOI：

摘要

采用矩量法

共轭梯度法和快速傅里叶变换的混合方法来分析任意形状截面的非均匀各向异性的介质柱在斜入射条件下的二维电磁散射.在这个方案中

采用关于总电场的微-积分方程

借助于包含介质柱的一个矩形来产生离散网格

而离散量的线性方程组仍然建立在原介质柱截面区域上.这样既不会扩大原问题的规模

又可以有效地利用共轭梯度法与快速傅里叶变换的结合算法CG-FFT来求解.文中给出了数值算例

证实了该方案的有效性.

Abstract

The hybrid technique of moment method

conjugate gradient method

and fast Fourier transform is applied to analyze 2D electromagnetic scattering from a dielectric cylinder with arbitrary inhomogeneity and anisotropy under oblique-incidence.In the scheme

the integro-differential equation for the total electric field is used.In this way

the size of original question is not enlarged

and the linear system can be efficiently solved by a combination of the conjugate gradient method with the fast Fourier transform.Some numerical results are given in this paper

which demonstrate validity of the scheme.

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