Articles by Benjamin Dannan

If you have designed a controlled impedance transmission line based on a PCB stack-up, how do you know if the PCB fabrication house or another vendor built your stack-up to meet your controlled impedance specification?

In this tongue-in-cheek experiment that leads to actionable conclusions, Ben Dannan and Steve Sandler set out to discover a method to mitigate the lack of an isolation calibration step on a VNA.

Benjamin Dannan and Steve Sandler teamed up to explore the tradeoffs for various calibration methods and offer some recommendations and considerations to make accurate sub-milliohm impedance measurements.

As DDR data transmission rates continue to increase, the signal integrity of the DDR channel has become one of the most critical concerns. This article takes an extensive look at the impact of via stubs on the impedance of the signal lines on DDR4 memory, including test cases and ways to optimize design.

Benjamin Dannan steps through an in-house process to improve the success rate in EMC compliance testing.

Low-speed printed circuit board (PCB) designs now have to deal with high-speed switching problems. This article examines the ground bounce generated from an LCD assembly while evaluating the impact of the ground bounce on the system level EMI. Three solution strategies to mitigate the ground bounce are analyzed, the pros and cons of each strategy are provided along with the test results.