基于GTH规范的高速背板性能仿真与优化设计  

Performance Simulation and Optimization of High Speed Backplane Based on GTH Specification

作　　者：李春来 顾军[1] 王宁 徐瑞荣[1] 黎仁刚[1] LI Chun lai;GU Jun;WANG Ning;XU Rui rong;LI Ren gang(The 723 Institute of CSIC,Yangzhou 225101,China)

机构地区：[1]中国船舶重工集团公司第七二三研究所,江苏扬州225101

出　　处：《舰船电子对抗》2018年第2期106-111,共6页Shipboard Electronic Countermeasure

摘　　要：在复杂信号系统中,多模块之间数据信号和控制信号的传输都是通过背板实现。随着所需要处理信号流量的剧增,其面临着传输通道信号速率高达10Gbps以上、通道包含2组连接器和过孔等阻抗不连续单元以及较长有损传输线等巨大挑战。通过HFSS对传输单元进行建模与S参数提取,使用Siwave、Designer进行通道整体建模仿真,采用协调仿真方法,对通道反射、损耗、眼图等指标进行预测。根据仿真结果指导性能优化设计,成功实现基于GTH收发器规范的高速传输通道设计。In complex signal systems,the transmission of data and control signals among multiple modules is achieved through the backplane.With the signal flow which is required to be processed increases dramaticlly,the system faces challenges such as the signal rate of transmission channels is more than 10 Gbps,the discontinuous units of impedance：two connectors and vias hole in the channel,etc.,and long transmission lines with loss.The transmission unit is modeled and the S parameters are extracted through HFSS,the Siwave and Designer are used to model and simulate the whole channel,the coordinate simulation method is used to predict the channel reflection,loss and eye pattern.The performance optimization design is guided according to simulation results,highspeed transmission channel design based on GTH transceiver specification is realized successfully.

关 键 词：背板 信号完整性 高速 阻抗 

分 类 号：TN911.7[电子电信—通信与信息系统]