Transfer impedance measurement of shielded cables with mismatched loads

Abstract

With the growing use of custom shielded cables in advanced electronic systems, evaluation of the transfer impedance of shielded cables with non-standard characteristic impedances is increasingly necessary; however, traditional measurement methods here are limited by the difficulty of obtaining matched loads. This letter presents a method for characterizing the transfer impedance of electrically short shielded cables with an arbitrary characteristic impedance. The proposed method can be used with mismatched loads in the experimental configuration. Validation is performed with cables of known transfer impedance. The presented results closely align with the theoretical formulas.