A measurement verification for EMI source reconstruction method based on amplitude only near field scanning
A modified differential evolution (DE) method is used to reconstruct the equivalent source model of the device under test (DUT) based on amplitude only near field scanning in this paper. The equivalent source is a set of infinitesimal magnetic dipoles, which can be used to replace the DUT for electromagnetic interference (EMI) analysis. Then, a test PCB is fabricated to verify this source reconstruction method. The results obtained by the equivalent dipole model have a good agreement with the measured ones.