Implementation of the time domain electromagnetic inverse method: Application of structures with single excitation source

Abstract

The objective of this paper is to develop and implement the time domain electromagnetic inverse method to model the radiated emissions of structures excited by a single excitation source. This approach is based on the use of the near-field cartography to extract and identify the parameters of equivalent radiation sources. The first part of the paper is devoted to the description of the electromagnetic inverse method in the time domain and its resolution with an optimization method based on genetic algorithms. Subsequently, and to test the proposed method with respect to near-field measurement errors, we propose to validate the time domain inverse method with an experimental model. To validate our approach, we will present and compare the measured field cartography with the calculated field cartography by using the parameters of the estimated model. The obtained results showed that the proposed approach is very suitable for modeling simple structures with a single excitation source.