CAJ | 학술논문

电缆作为连接各种电子设备必不可少的元件,是电磁兼容设计的重点问题之一,大部分电磁干扰敏感问题、电磁干扰发射问题、信号串扰问题都是电缆产生的. 针对电缆是否应用屏蔽层的电磁干扰问题进行对比分析,通过运用Q3D软件对电缆的寄生参数进行提取并得到其场分布图,建立电缆的等效电路模型,使用6500B阻抗分析仪对于屏蔽电缆和非屏蔽电缆的寄生参数进行测量验证,分析了屏蔽电缆的接地原因. 研究结果表明:屏蔽电缆的寄生参数有所增加,但是其对辐射干扰有明显的抑制作用.
전람작위련접각충전자설비필불가소적원건,시전자겸용설계적중점문제지일,대부분전자간우민감문제、전자간우발사문제、신호천우문제도시전람산생적. 침대전람시부응용병폐층적전자간우문제진행대비분석,통과운용Q3D연건대전람적기생삼수진행제취병득도기장분포도,건립전람적등효전로모형,사용6500B조항분석의대우병폐전람화비병폐전람적기생삼수진행측량험증,분석료병폐전람적접지원인. 연구결과표명:병폐전람적기생삼수유소증가,단시기대복사간우유명현적억제작용.
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.