Plot of current density in a via array connecting two power plane shapes, generated by HyperLynx PI

Understanding distribution of current in via arrays

The path of least resistance We all like to take the path of least resistance. If only it were easier…

Accuracy in HyperLynx

Accuracy in HyperLynx

I frequently get asked, “what is the maximum frequency that you can simulate in HyperLynx?”  And I usually say that…

The Simulation Advantage

The Simulation Advantage

The advent of high-speed serial links added many challenges to the process of designing PCBs.  In some ways, it made…

Correlation up to 50GHz

Correlation up to 50GHz

Last week I attended DesignCon, and as usual correlation between simulation and measurement was a hot topic, especially for the…

Decoupling Analysis for Trace-Routed PDNs

Decoupling Analysis for Trace-Routed PDNs

Performing an accurate high-frequency analysis of a power distribution network routed with traces instead of planes poses some interesting challenges.  Most…

The Simplest of Power Integrity Issues

The Simplest of Power Integrity Issues

By far, DC Drop issues are the simplest problems you can run into when designing a power distribution network or…

High current density – is it a problem?

High current density – is it a problem?

A question I get all too often on power integrity results is whether or not a current density issue is…

What to Look for in a PCB Analysis Solution

What to Look for in a PCB Analysis Solution

At today’s speeds, everything matters in PCB design and analysis tools that enable efficient modeling are key. From full-wave 3D…

Superior EMC Performance: Passing Class A with the Case Off

Superior EMC Performance: Passing Class A with the Case Off

This is the final post in a three-part series discussing PCB design EMI Reduction. View the first and second. Early in my…