• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2014, Vol. 36 ›› Issue (03): 416-419.

• 论文 • 上一篇    下一篇

传输线模型介质参数校准方法研究

李鹏翀,张柯柯,宗艳艳   

  1. (高效能服务器和存储技术国家重点实验室,北京 100085)
  • 收稿日期:2013-06-01 修回日期:2013-08-22 出版日期:2014-03-25 发布日期:2014-03-25
  • 基金资助:

    国家863计划资助项目(2011AA01A201 );高效能服务器和存储技术国家重点实验室课题资助项目

Research on dielectrics parameters calibration
method of transmission line model

LI Pengchong,ZHANG Keke,ZONG Yanyan   

  1. (State Key Laboratory of Highend Server & Storage Technology,Beijing 100085,China)
  • Received:2013-06-01 Revised:2013-08-22 Online:2014-03-25 Published:2014-03-25

摘要:

论述了高频信号在PCB中传输时,介质对于传输线损耗的影响。以此为基础,提出传输线介质参数校准流程,完成传输线测试板的设计,通过对测试板的仿真、测试,推导得出PCB介质的介电常数与损耗因子,提高高频传输线的仿真精度,同时验证了此流程方法的有效性。

关键词: PCB, 传输线, 介电常数, 损耗因子

Abstract:

The impact of PCB dielectrics on transmission line when the highfrequency signal travels through the PCB is described and discussed.  Furthermore, a new PCB dielectrics parameters calibration process is proposed. It collects the design data by simulation and validation based on PCB test board, then it gets the Dk and Df using this new proposed process. The test results demonstrate that such process is effective and can improve the model accuracy of transmission line.

Key words: printed circuit board;transmission line;dielectric constant;dissipation factor