A Probabilistic Approach to Radiated Electromagnetic Interference

Abstract

Radiated electromagnetic interference is an ubiquitous problem that needs to be accounted for in the design of electronic devices. Typically, restrictions on the maximum permissible field level for a device to cause over a certain frequency range are imposed, based on characterizing the device's radiations in the far-field. We present a probabilistic approach to characterize and model radiated interference, based on stochastic electromagnetic fields. This allows for computationally predicting the probability for exceeding the emission threshold, set by international electromagnetic compatibility regulations.