摘要
采用HFSS三维电磁仿真软件对差分信号几种主要绕线方式进行建模,通过对S参数的仿真分析,结果表明采用Accordion(手风琴)形状的绕线结构为时序控制下最优的差分信号绕线方式,对应的差模信号传输效率较高;在对比差分对内绕线不同间距时,得出在差分信号绕线时,应该增大差分信号绕线间距,可极大减小共模噪声,确保差分信号传输完整性。
HFSS 3D electromagnetic simulation software is used to model several main winding style of differential signals.Through the simulation and analysis of S parameters,the results show that the structure of the Accordion shape is the best difference signal winding style in time synchronization,and the corresponding differential signal transmission efficiency is higher.By contrasting difference spacing between the same different distances Wiring style,it concluded that the distance between the difference signals should be increased when wiring,which can greatly reduce the common mode noise and ensure the integrity of the differential signaltransmission.
作者
许志辉
冯立
汤茂林
Xu Zhihui;Feng Li;Tang Maolin
出处
《印制电路信息》
2018年第8期6-9,共4页
Printed Circuit Information
关键词
差分信号
绕线方式
共模噪声
信号完整性
Differential signal
Wiring style
Common mode noise
Signal integrity
