Cable Harness Modeling Using MTL Parameters Derived from Integral Equations

摘要

A method to calculate equivalent Multiconductor Transmission-Line (MTL) parameters through integral equations is proposed in this paper. In the mixed-potential integral equations (MPIE), the elements of harness part are converted to MTL parameters based on the relations between MTL parameters and partial elements of 1-D wire segments. Then, to include the effects of reference metal plane nearby, the equivalent MTL parameters can be derived from the MPIE equations with modified harness elements by keeping the solutions on harness part the same. The current distributions on wires calculated using the equivalent MTL parameters have good correlations with the results from the original MPIE solver, and the understanding on the behavior of cable harness routing over nonideal reference plane can be analyzed in more detail and accurately with the extracted equivalent MTL parameters.