Abstract:

This paper depicts accurately the contemporary high-speed plane power distribution network (PDN) through multiple input impedance.This impedance can simultaneously detect inputs of multiple excitation source,which can accurately measure the impact of other port on PDN.Multiple input impedance is a novel input impedance,which have two forms: multiple input self-impedance and multiple input superposed impedance.The former is used to describe each power port within the same IC,and the latter is used to describe the influence between different IC.Time-domain and frequency-domain simulation shows that multiple input impedance can accurately measure the local and global properties of plane power distribution network.

Key words: PDN;multiple input from impedance;multi-input superposition impedance