Wide Frequency PCB Circuit Model Base on Impedance Characteristic for Electromagnetic Noise Prediction

EMI (Electromagnetic Interference) noise prediction technique need accurate model of each components on PCB board, the model of PCB trace plays an important role, previous work may not pay enough attention on it. This work proposed a circuit model which describe the PCB trace parasitic characteristic in a wide band frequency with considerable accuracy base on Q3D simulation result, moreover, a new the circuit parameters extract method is proposed at the same time.