基于Hyperlynx的高速电路端接技术仿真研究  

Simulation Research on High-Speed Circuit Termination Technologies Based on Hyperlynx

作　　者：王祎帆 王杨 王强 赵目龙 赵晓雪 Wang Yifan;Wang Yang;Wang Qiang;Zhao Mulong;Zhao Xiaoxue(Intelligent and Connected Vehicle Development Institute,China FAW Corporation Limited,State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise&Safety Control,Changchun 130013)

机构地区：[1]中国第一汽车股份有限公司智能网联开发院,汽车振动噪声与安全控制综合技术国家重点实验室,长春130013

出　　处：《汽车文摘》2020年第5期49-54,共6页Automotive Digest

摘　　要：在高速电路中,反射是影响信号质量的一个非常重要的因素。为探究高速电路的端接方式是否能够抑制信号的反射,首先分析了反射的形成机理,而后对于高速电路中常见的串联端接、简单并联端接、主动并行端接、戴维南端接、阻容端接、二极管端接6种端接方式进行理论分析。最后,通过Hyperlynx软件对上述6种端接方式进行仿真分析。仿真结果表明,有效的端接可以显著地减小信号的反射,提高信号完整性。In high-speed circuits,reflection is a very important factor affecting signal quality.In order to investigate whether the termination of high-speed circuits can suppress signal reflection,the formation mechanism of reflection is analyzed firstly,and then 6 types of termination methods,including series termination,simple parallel termination,active parallel termination,Thevenin termination,resistance-capacitance termination and diode termination,are analyzed,which commonly used in high-speed circuits.Finally,the software Hyperlynx is used to simulate and analyze the above 6 termination methods.Simulation results show that effective termination can significantly reduce signal reflection and improve signal integrity.

关 键 词：高速电路 端接 HYPERLYNX 信号完整性 反射 仿真 

分 类 号：U463.65[机械工程—车辆工程]