Generation of physical equivalent circuits using 3D simulations

Physical equivalent circuits are powerful tools for EMC analysis of electronic devices, however their generation is in general cumbersome. In this paper, a procedure to generate physical equivalent circuits using 3D simulations is described. The method is based on a numerical computation of Z parameters using 3D simulations. Equivalent circuit tpoplogy and parameters are extracted from the simulated Z parameter matrix. Maxwell´s equations are used in a reduced form to eliminate all effects that cannot be modelled by equivalent circuits.