Comparison of Calculation Methods of Braided Shield Cable Transfer Impedance Using FSV Method
Keywords:
Braided shield cable, feature selective validation method, finite element method, transfer impedanceAbstract
This paper presents the results of recent work based on finite element numerical modeling in Ansoft HFSS to predict the surface transfer impedance of braided coaxial cables. Two approaches to the cable 3D modeling are investigated: (1) a simplified structural model, and (2) a rigorous structural model of braided shielded cable which is designed in Pro/Engineer software. The proposed approach provides a robust method that can overcome the challenges in the existing theoretical analysis. Factors influencing the cable transfer impedance are analyzed in detail. The validity of this simulation method is verified by comparison with a new measurement method based on time-domain response of two cable samples. The reliability of these two sets of data is analyzed by use of the feature selective validation method
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References
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