A method to convert scattering parameters from common mode to differential mode for automotive applications

This communication proposes a new method to evaluate the differential mode scattering parameters of cable harnesses from the scattering parameters calculated or obtained conventionally in common mode. Considering a reference conductor instead of a ground plane, the characterization of coupling effects by means of differential mode S-parameters is of great practical interest in automotive applications. In order to show the efficiency of the method, an example of crosstalk prediction is provided.