MST measurement technique for EMC calibrations and exposure hazard evaluation

The modulated scattering technique (MST) is a perturbative measurement technique that in the past has been employed to measure electromagnetic field, in order to minimize the perturbations introduced by conventional techniques. In this paper we describe the application of MST in some EMC calibration activities and in the evaluation of human exposure to high frequency electromagnetic fields. In particular in EMC area we consider the application of MST to field uniformity verification in a semi-anechoic chamber and in a TEM cell, while the same measurement technique is extended to a system able to evaluate the exposure to electromagnetic field in a vertical section of the human body