用于多导体传输参数提取的等效电流密度法

门秀花 1; 李舜酩 1; 占日新 2

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用于多导体传输参数提取的等效电流密度法

更新时间：2025-12-08

- 用于多导体传输参数提取的等效电流密度法
- Equivalent Current Density Method for Transmission Extraction of Multiconductor
- 西安交通大学学报 2008年42卷第12期页码：1521-1525
- 作者机构：
  
  南京航空航天大学能源与动力学院,南京,210016
- 作者简介：
- 基金信息：
  
  : 2008-02-26. 作者简介: 门秀花(1980-),女,博士生;李舜酩(联系人),男,教授. 基金项目: 国家自然科学基金资助项目(50675099);江苏省自然科学基金资助项目(BK2007197)
- DOI：
  中图分类号： TM15
- 网络首发：2008-12-10，
  
  纸质出版：2008
- 稿件说明：
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门秀花 1, 李舜酩 1, 占日新 2. 用于多导体传输参数提取的等效电流密度法[J]. 西安交通大学学报, 2008,42(12):1521-1525.

门秀花 1, 李舜酩 1, 占日新 2. Equivalent Current Density Method for Transmission Extraction of Multiconductor[J]. 2008, 42(12): 1521-1525.
门秀花 1, 李舜酩 1, 占日新 2. 用于多导体传输参数提取的等效电流密度法[J]. 西安交通大学学报, 2008,42(12):1521-1525. DOI：

门秀花 1, 李舜酩 1, 占日新 2. Equivalent Current Density Method for Transmission Extraction of Multiconductor[J]. 2008, 42(12): 1521-1525. DOI：

摘要

针对电信号的有效传输受外界环境引起自身参数变化的问题

提出了一种基于有限元方法求取传输参数的等效电流密度法.通过对实验中电路参数法的研究

建立了传输电缆中的多根铜芯相互作用模型.分析了导体间涡流作用的形式

求取此作用产生的感应电压和电流密度重新分布参数

由此推导出电阻和电感传输参数求解公式

由有限元方法实现了参数提取.仿真结果表明:这种方法能够实现多导体模型电阻和电感参数的有效提取; 当信号频率升高时

交流电阻及功耗有所增加; 电阻和电感参数均有相应的频变特性

即在特定频段内呈线性变化.

Abstract

A novel method named equivalent current density based on finite element method was developed for parametric variation problem of signal transmission caused by the external environment. According to the investigation on circuit parameters measurement

multiconductor model of transmission cable is established

and the induction voltage and the redistribution character of current density at the conductor cross-section caused by the eddy current are also discussed. The new formulas of resistance and inductance are derived based on the equivalent current density and parameters exaction is realized with the finite element method

which demonstrates validation of the method for extracting transmission parameters.And the increased signal frequency leads to the corresponding increase of AC resistance and power consumption.The resistance and inductance manifest the frequency-dependent characters linearly varying within some frequency bands.

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references

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WANG Xiren, YU Wenjian, WANG Zeyi. Coupled analytical and boundary element method for 3-D interconnecting resistance calculations[J]. Journal of Tsinghua Univ(Sci Tech),2004,44(9): 1277-1281.

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