The Modified Difference Equation Near the Sharp Metal Edge in FDTD Grid

CHEN Bin; LU Feng; YI Yun; CHEN Hai-lin; ZHOU Bi-hua; PEI Yu-ling

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The Modified Difference Equation Near the Sharp Metal Edge in FDTD Grid

更新时间：2025-07-16

- The Modified Difference Equation Near the Sharp Metal Edge in FDTD Grid
- Acta Electronica Sinica Vol. 32, Issue 6, Pages: 1036-1038(2004)
- 作者机构：
  
  解放军理工大学工程兵工程学院,江苏,南京,210007
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN811
- Published Online：25 June 2004，
  
  Published：2004
- 稿件说明：
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CHEN Bin, LU Feng, YI Yun, et al. The Modified Difference Equation Near the Sharp Metal Edge in FDTD Grid[J]. Acta Electronica Sinica, 2004, 32(6): 1036-1038.
DOI：

CHEN Bin, LU Feng, YI Yun, et al. The Modified Difference Equation Near the Sharp Metal Edge in FDTD Grid[J]. Acta Electronica Sinica, 2004, 32(6): 1036-1038. DOI：

摘要

本文提出了一种时域有限差分法中金属薄板边缘场修正的差分方程.以带状线和V形天线为例检验了修正的差分方程的有效性

数值结果表明

和金属板边缘阶梯近似相比

计算精度大大提高.

Abstract

The modified difference equation near the sharp metal edge in FDTD grid is presented in this paper.In order to test the efficiency of new FDTD equations

we use a stripline and V-shape antenna

which have two sharp edges diagonal to the cell cube in FDTD grid.Compared with staircase approximation

a dramatic improvement in computed accuracy is observed.

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