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2017年 仪 表 技 术 与 传 感 器 2017 第5期 Instrument Technique and Sensor No.5 电连接器信号完整性分析方法研究 黄 波李迅波,缯 志汤茂林,于文杰 (电子科技大学机械电子工程学院四川成都 611731) 摘要:为了提高电连接器在承载信号传递及高速互连方面的质量及可靠性,以高速背板连接器作 为研究对象建立了该电连接器的结构模型,通过仿真分析了影响其信号完整性的重要参数進行结构 优化后实现了参数的调整,使得时域反射阻抗提高了22 Ω,回波损耗降低了6.54 dB,说明了经优化后 的参数能够满足性能指标要求 再结合参数测试分析,对仿真结果和测试结果进行了比较结果表明: 仅回波损耗的测试结果存在一定偏差,其余参数的仿嫃结果与测试结果相吻合同时也验证了信号完 整性分析方法合理有效。 所得结论可是电连接器设计、测试以及可靠性评估的参考依据 關键词:电连接器;信号完整性;差分对;阻抗;损耗;串扰 - - - 中图分类号:TM503;TN911 文献标识码:A 文章编号:1002 1841(2017)05 0095 05 Study on Signal Integrity Analysis Method for Electrical Connector HUANG Bo,LI Xun?boZENGZhi,TANG Mao?linYU Wen?jie (School of Mechatronics Engineering,University of Electronic Science and Technology of ChinaChengdu 611731,China) Abstract:In order to improve quality and reliability of electrical connectors in signal transmission and high?speed intercon? necta structure model of electrical connector was built with high?speed backplane connector as study object.Simulation analysis based on the model was carried out to receive important parameters affecting the signal integrity.Adjusted parameters can be ob? tained after the structure optimization.Time domain reflection impedance increased22Ω andreturnlossdecreased6.54 dB.It il? lustrated that optimized parameters can meet the requirement.A comparison was made between simulation results andtest results through parameter test.The results show that there isa deviation inreturnlosstest resultsand simulationresultsof theremaining parameters are in accordancewith test results.The signal integrity analysis

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