Skip to main content

Impedance Characterization of PCB Power-Ground Planes using Extraction Mode of PowerSI, Part-3

Demonstration of impedance characterization process for the PCB-level power distribution network, first added with an ideal capacitor and then a real capacitor between the power-ground planes; analyzing impedance characteristics in terms of the resonant frequencies; step-by-step process of impedance characterization of a real capacitor, using PowerSI as a circuit simulator; refining a frequency range, using the Frequency Resampling function; analyzing interaction of the impedances of the real capacitor and open cavity and computing total loop inductance corresponding to parallel resonant frequency of the cavity added with the real capacitor.

Untitled Document