Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Padé-finite-difference time-domain analysis of electromagnetic scattering in magnetic anisotropic medium

Yang Li-Xia Ge De-Biao

Padé-finite-difference time-domain analysis of electromagnetic scattering in magnetic anisotropic medium

Yang Li-Xia, Ge De-Biao
PDF
Get Citation
Metrics
  • Abstract views:  3379
  • PDF Downloads:  1295
  • Cited By: 0
Publishing process
  • Received Date:  13 September 2005
  • Accepted Date:  29 November 2005
  • Published Online:  20 April 2006

Padé-finite-difference time-domain analysis of electromagnetic scattering in magnetic anisotropic medium

  • 1. 西安电子科技大学理学院,西安 710071

Abstract: Based on the matrix Padé approximation theory, the complex relative permeability tensor of magnetized dispersive media is described by a matrix function expansion with respect to jω in frequency domain. By substituting the operator of /t into jω, the expansion is then transferred into the time-domain. In order to derive the formulation of the matrix expansion of complex relative permeability tensor in discretised time domain, a shifted operator in discretised time domain is introduced as a replacement of time differential operator /t. Therefore the dispersion relation between B and H in discretised time domain can be obtained, which is then implemented to the gyrotropic medium, yielding the time iterative formulation for finite-difference time-domain computation. To verify the feasibility of the presented scheme, we apply the above-mentioned method to the electromagnetic scattering by a magnetized ferrite sphere. The computed result is in good agreement with the one obtained by recursive convolution technique. The analysis and example show the feasibility of the proposed scheme.

Catalog

    /

    返回文章
    返回