Using CAD Technique to Realize the Geometric-Electromagnetic Modeling of the FDTD Calculation of Complex Objects

李明之; 刘友健; 王长清; 徐承和

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Using CAD Technique to Realize the Geometric-Electromagnetic Modeling of the FDTD Calculation of Complex Objects

更新时间：2025-12-08

- Using CAD Technique to Realize the Geometric-Electromagnetic Modeling of the FDTD Calculation of Complex Objects
- Acta Electronica Sinica Issue 3, Pages: 131-133(1999)
- 作者机构：
  
  1. 北京大学电子学系!北京
  2. 100871
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP15
- Published：1999
- 稿件说明：
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[1]李明之,刘友健,王长清,徐承和.用CAD技术实现复杂目标FDTD方法几何-电磁建模[J].电子学报,1999(03):131-133.

李明之, 刘友健, 王长清, et al. Using CAD Technique to Realize the Geometric-Electromagnetic Modeling of the FDTD Calculation of Complex Objects[J]. Acta Electronica Sinica, 1999, (3): 131-133.
[1]李明之,刘友健,王长清,徐承和.用CAD技术实现复杂目标FDTD方法几何-电磁建模[J].电子学报,1999(03):131-133. DOI：

李明之, 刘友健, 王长清, et al. Using CAD Technique to Realize the Geometric-Electromagnetic Modeling of the FDTD Calculation of Complex Objects[J]. Acta Electronica Sinica, 1999, (3): 131-133. DOI：

摘要

FDTD方法是近年来得到广泛研究和应用的数值方法，具有许多无可比拟的优越性．CAD技术的介入使FDTD方法向实用化方向迈出了一大步．本文介绍如何使用CAD软件，基于复杂目标的设计图、剖面线图等描述方式，生成提供给FDTD计算程序使用的目标的几何-电磁参量描述文件．本文借助该方法计算了一种飞机在谐振区的RCS．

Abstract

FDTD method has been widely studied and applied in the recent years. It has many advantages over other numerical methods. When CAD technique gets involved

FDTD method makes a large pace toward its practicableness. In this paper

we introduce how to use CAD software to generate the original geometreic-electromagnetic parameter description file provided to the FDTD calculation code to solve the electromagenetic scattering problem of those objects with complex geometric shape and electromagnetic parameter distribution. Using this technique

we can get the geometric-electromagnetic parameter description file from the design drawing

sectional drawing or other ways of description of the objects. As an example

a kind of plan’s RCS in the resonance frequency was calculated.

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