Modeling the Electromagnetic Radiation of Passive Microwave Components Using a Near-Field Scanning Method

This paper presents a heuristic optimized model for describing the electric- and magnetic-radiated emissions from passive microwave components. The main idea has been derived from a previously built model at the Research Institute for Embedded Electronic Systems, which models only the radiated magnetic field. The modeling procedure is based on the use of elementary dipoles. The model extraction is a two-step technique: extraction of the initial dipole parameters (namely their orientation and currents) and an optimization. The Levenberg-Marquardt algorithm is used in order to optimize the dipole parameters, keeping in mind their physical sense. The tangential components of the measured magnetic field are used to build the model.