On the prediction of near-field microcontroller emission

Abstract

This paper details a predictive approach for the evaluation of the magnetic field radiated by microcontrollers. The simulation is based on the radiation of elementary current dipoles corresponding to the current flowing in supply inductances. A CMOS test chip including six microcontroller cores has been scanned for validation purpose. Preliminary comparison show interesting similarities between measured and simulated scan, which build a valuable link between electrical macro-models and near-field electromagnetic formulations.