Complete Identification for Near-Field Multipolar Expansion of Electromagnetic Sources
Résumé
In EMC behavior of power electronic converters, it is important to predict near-field coupling between the complex components (e.g. in EMC filter). By using the components of near-field multipolar expansion of electromagnetic sources, the close magnetic coupling between two radiating elements is determined from their equivalent model. It is shown that the increase in degree up to the fourth degree together with the complete identification of all components of multipolar expansion provide a more precise representation of the radiating elements and thus a better accuracy of the near-field coupling prediction.