Prediction of Radiated Emissions by Applying Multipole-network Theory to a Measurement Setup

A CISPR 25 radiation measurement setup is decomposed into the device under test itself and its surroundings including the antenna. The latter part is described by scattering parameters relating the connecting ports of the device to the antenna. In this way the antenna voltage can be predicted knowing the internal behaviour of the device. It can be shown that the method is applicable for devices including linear networks.