Time domain electromagnetic inverse method for non-sinusoidal circuits

In this paper, we propose a new method of an electromagnetic compatibility study. The electromagnetic inverse method in the time domain is proposed to analyze the electromagnetic radiation of power electronic circuits which emit signals that are not sinusoidal. Using measured near-field cartography above the studied circuit, the method, based on genetic algorithms, consists in identifying the dipole sources. To validate the proposed method, we have applied it to theoretical temporal signals emitted by the known electric and magnetic dipoles. The obtained results show a good agreement between the cartography of the near magnetic field, obtained by the developed model, and the calculated one. The results allow us to conclude that the proposed method is suitable for the identification of equivalent-source structures excited by different current forms.