基于FDTD /MoM方法的同轴电缆孔缝辐射效应研究

北京邮电大学学报 ›› 2004, Vol. 27 ›› Issue (2): 61-65.

基于FDTD /MoM方法的同轴电缆孔缝辐射效应研究

张洪欣, 吕英华, 包永芳

北京邮电大学继续教育学院, 北京 100876

收稿日期:2003-02-03 出版日期:2004-02-28
作者简介: 张洪欣(1969—),男,博士生。 E-mail:hongxinzhang@263.net
基金资助:
国家自然科学基金资助项目(60271018)

The Study on the Electromagnetic Radiation from the
Aperture on Coaxial Cable Based on FDTD/MoM Method

ZHANG Hong-xin, LU·· Ying-hua, BAO Yong-fang

Continuing Education School, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2003-02-03 Online:2004-02-28

摘要/Abstract

摘要： 利用时域有限差分法(FDTD,finite difference time domain)和矩量法(MoM,methodof moment)等方法对同轴电缆的孔缝电磁辐射建模,研究了同轴电缆在传输数字信号时的孔缝电磁辐射规律和引起的信息泄漏现象;通过对同轴电缆孔缝电磁辐射的远场信息截获和复现的仿真研究表明,可以实现对计算机信息泄漏的远距离截获,并复现其原始文字信息。

关键词: 同轴电缆连接器, 计算电磁学, 电磁辐射, 信息泄漏

Abstract: First, the electromagnetic radiation model of the aperture on coaxial cable is set up using computational electromagnetics methods, such as FDTD (finite differcence time domain) and MoM (method of moment) etc. Then, a detailed analysis of the characteristics of the radiation is given while digital signal being transmitted in the cable. At last, the simulation of interception and reconstruction of the electromagnetic radiation arising from the aperture on coaxial cable in far zone is completed. This makes it clear that the interception andrecovery of information leakage is available.

Key words: coaxial cable connector, computational electromagnetics, electromagnetic radiation, information leakage

中图分类号:

O441.4

张洪欣, 吕英华, 包永芳. 基于FDTD /MoM方法的同轴电缆孔缝辐射效应研究[J]. 北京邮电大学学报, 2004, 27(2): 61-65.

ZHANG Hong-xin, LU·· Ying-hua, BAO Yong-fang. The Study on the Electromagnetic Radiation from the
Aperture on Coaxial Cable Based on FDTD/MoM Method
[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2004, 27(2): 61-65.

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[2]	董积平, 高攸纲. 有限移动源的电磁波辐射[J]. 北京邮电大学学报, 2001, 24(3): 89-92.