Experimental Study of Coupling between an Electromagnetic Wave and Transmission Lines in a GTEM Cell

Abstract

In an installation or an electronic equipment, transmission lines are usually located in a proximity of a ground plane. Also an interference electromagnetic field can cause on the lines a parasitic current and voltage. As the security of such equipment depends on the amplitude of these parasites, the evaluation of the electromagnetic risk requires a measurement of this amplitude.
To identify the coupling between the electromagnetic waves and transmission lines and proposing solutions allows reducing perturbations in EMC; an experimental study was performed using a GTEM cell and a vector network analyzer which gives the results of the induced voltage at the extremity of various transmission lines.