Melinda Piket-May has been a Professor at the University of Colorado Boulder for 27 years. Her areas of research include signal integrity, computational electrodynamics, assistive technology for special needs, engineering education and pre-collegiate outreach. She is very involved in faculty governance and has won numerous teaching and research awards.
Few topics are as fundamental in signal integrity and create as much confusion as signal bandwidth. What exactly does bandwidth refer to and what features in the time domain influence bandwidth; rise time or slew rate?
The first goal in any high-speed board stack up design is to engineer interconnects with a target impedance, and the first step in this process is to use a 2D field solver to explore design space with a virtual prototype. Just how well can a field solver predict the impedance of traces on a real board? This article aims to answer this question.