Teaching coupling mechanisms - a case study

An EMC experiment is described, which demonstrates a combination of ohmic, capacitive and inductive coupling. Based on the test set-up, an equivalent circuit is derived, which can be used to analyze and to explain the somewhat unexpected behavior of the test set-up during the different experiments. These experiments are used as part of an EMC course and the procedure of how to understand the underlying effects will be explained in this paper step by step.