EM simulators that are optimized for PCB PDN simulations provide an increased level of automation to enable the basics of DC IR Drop, electrothermal, and AC impedance for early detection of design issues. In this article, Heidi Barnes, Steve Sandler, and Benjamin Dannan examine why the ability to optimize a PDN for ZTarget with PCB parasitics in the frequency domain and then export to an end-to-end PI Digital Twin simulation for validation in the time domain should be standard practice for the PI engineer.
