Power Integrity and Simulations with Heidi Barnes

Zachariah Peterson
|  Created: April 20, 2022
Power Integrity and Simulations with Heidi Barnes

What a very insightful discussion with Heidi Barnes of Keysight. In this episode, we will discuss all things simulations and power integrity in detail. We will dive into EM simulations, capacitor placement, Z, Y, and S parameters correlation measurements, and more! You will learn a lot from this episode!

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Show Highlights:

  • Heidi’s background and her 30 years of experience in the PCB design Industry
    • When she was only 17, she did an internship at Bill and Dave in Santa Rosa, which is now the Hewlett Packard (HP)
    • She got into the solar industry and aerospace
    • She is currently passionate about signal integrity and power integrity
  • Heidi stresses the importance of simulation tools and mentions the need for having reasonable rules of thumb and have an understanding of what to expect before you jump into a simulation tool
  • The Keysight’s PathWave ADS ( Advanced Design System) environment, what does it offer?
    • Running an EM simulation and getting results through the pro environments– PiPro (power integrity pro), SiPro (signal integrity pro)
    • On top of the DC analysis, it features a lot of great asymmetric tolerances analysis, current density, and thermal heat up effects analyses
  • Heidi talks about capacitor placement–lowering the path inductance, allowing a higher frequency, and giving a broader power delivery from the printed circuit board.
    • Capacitor Placement paper presented at DesignCon
  • Addressing specific peaks that are exceeding the target impedance in a problematic PCB
  • Heidi’s take on using ferrites
  • Steve Sandler has a great video about How to Design for Power Integrity–how to select a regulator
  • Z, Y, and S parameters–understanding simulation to measurement correlation
  • Watch for another episode with Heidi Barnes, tackling subjects related to all things SI and especially getting into measurement issues, coming soon!

Links and Resources:

Check out Heidi Barne’s articles on SI Journal website
Visit Keysight website
Read a previous interview with Heidi Barnes: Heidi Barnes, Senior Application Engineer and Power Integrity Product Owner
Watch Heidi Barnes Altium 2022 Presentation: What is Target Z and Why is Power Delivery AC Not DC? - AltiumLive 2022
Connect with Zack on LinkedIn

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About Author

About Author

Zachariah Peterson has an extensive technical background in academia and industry. He currently provides research, design, and marketing services to companies in the electronics industry. Prior to working in the PCB industry, he taught at Portland State University and conducted research on random laser theory, materials, and stability. His background in scientific research spans topics in nanoparticle lasers, electronic and optoelectronic semiconductor devices, environmental sensors, and stochastics. His work has been published in over a dozen peer-reviewed journals and conference proceedings, and he has written 1000+ technical blogs on PCB design for a number of companies. He is a member of IEEE Photonics Society, IEEE Electronics Packaging Society, American Physical Society, and the Printed Circuit Engineering Association (PCEA), and he previously served on the INCITS Quantum Computing Technical Advisory Committee.

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