Source Reconstruction Method Using Phase-Less Magnetic Near-Field Measurements: Application of the Method of Moment with Roof-Top Basis Functions

Source reconstruction methods have many applications such as antenna diagnosis, calculating far-field radiated emissions, and identifying incompatible sources on integrated circuits or printed circuit boards. In this paper, the Gerchberg—Saxton algorithm is used to retrieve the phase of the transverse magnetic near-field data measured on two parallel plates above the equipment under test (EUT). Then, the method of moments using roof-top basis functions is applied to reconstruct the horizontal electric current densities for the EUT. The proposed method is validated by comparing its results to full-wave simulations obtained using the CST-MWS software.