Application Examples

EMCoS > Application Examples > High-Speed Connectors Simulation

    • High-Speed Connectors Simulation

    Introduction

    The high-speed connectors are commonly used in multi-boards to transmit signals between PCBs. Investigation of their characteristics plays important role in signal integrity and channel analysis of a system. This application note demonstrates modeling and 3D full wave simulations of a high-speed differential connector in EMCoS Studio environment. Simulated characteristics of the connector are compared with reference measurement data provided by Missouri S&T EMC Laboratory.

    High_Speed_Connector_Test_Board

    Simulation Model Description

    The original geometry model of a high-speed connector was imported from CAD file format. In order to simplify the model construction and reduce simulation time for full wave analysis, only one connector wafer was considered with assigned 4-ports for S-parameters calculation. The relative permittivity and the loss tangent of connector plastic material were assigned to be 3.1 and 0.02 correspondingly. The PCB board was modelled with relative permittivity 4.19 and loss tangent 0.025. All conductors in the model were assigned to be perfect electric conductors.

    High_Speed_Connector_Simulation_Model_Description

    Comparison of Simulation and Measurement Results

    Comparison of simulation and measurement results for high-speed connector is presented below:

    High_Speed_Connector_Simulation_Results_S_Parameters

    High_Speed_Connector_Simulation_Results_TDR

    High_Speed_Connector_Simulation_Results_Current_Distribution

    Application note was prepared in cooperation with Missouri S&T EMC Laboratory