Research on transmission performance of high-speed connectors for intelligent connected vehicles
As an integral part of the signal transmission system on intelligent connected vehicles,the high-speed connector's performance significantly affects both the quality and stability of communication within high-speed interconnection systems.Taking an intelligent connected vehicle FAKRA connector as the research object,the transmission performance characterization parameters in time domain and frequency domain are derived,and the corresponding three-dimensional parametric model is built by electromagnetic simulation software,and the accuracy of the model is verified by real tests.Based on the model,the impact of structural parameters,insulation materials and dielectric degradation on the transmission performance of the connector are simulated and analyzed.Our study demonstrates the transmission performance of connectors is effectively improved by appropriately reducing the axial gap between the inner conductor diameter mutation point and insulation layer,as well as by adjusting the mating clearance of male and female connectors.Changes in the dielectric constant of the insulating layer do not markedly impact connector transmission performance.However,an increase in effective dielectric constant caused by dielectric degradation causes the deteriorating transmission performance.Our findings may provide some references for developing high-speed connectors for intelligent connected vehicles.
intelligent networkingvehiclehigh-speed connectorstransmission performancecharacteristic impedancereturn loss
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