电测与仪表2015，Vol.52Issue(20)：47-50,101,5.
屏蔽层对电缆寄生参数的影响分析
The influence analysis of shielding layer on cable parasitic parameter
仇亚芳 1杜明星 1窦汝振 2魏克新1
作者信息
- 1. 天津理工大学天津市复杂系统控制理论及应用重点实验室,天津300384
- 2. 中国汽车技术研究中心,天津300300
- 折叠
摘要
Abstract
As an absolutely necessary component to connect all kinds of electronic equipment, cable is one of the key problems of electromagnetic compatibility design, and most problems are produced by the cables such as being sensi-tive to electromagnetic interference, electromagnetic interference emission, and signal crosstalk.This paper is aimed at giving the comparative analysis of whether shielding layer should exist in cables or not for electromagnetic interfer-ence problem.By using Q3D software to extract the parasitic parameters of the cable and obtaining the field distribu-tion diagram, and the equivalent circuit model of the cable established.Then using 6500B impedance analyzer to measure and verify the parasitic parameters of shielded cable and non-shielded cables, and the reason of the shielded cable grounding has been analyzed.The result proves that the inhibitory effect on radiated interference is obvious, though the parasitic parameters of shielded cable increase.关键词
电缆/屏蔽/寄生参数/传导干扰/近场干扰Key words
cables/shielding/parasitic parameters/conducted interference/near field interference分类
信息技术与安全科学引用本文复制引用
仇亚芳,杜明星,窦汝振,魏克新..屏蔽层对电缆寄生参数的影响分析[J].电测与仪表,2015,52(20):47-50,101,5.
