Items Tagged with 'VNA'

Awarded the Best Paper Award at DesignCon 2024, this paper demonstrates that, for correlated data with PDN impedances in the sub-mΩ level, the impedance extracted from same-location top-bottom measurement can be significantly different from same-side adjacent via pair measurement, even if the physical separation is in the order of a mm

In this blog, Steve Sandler and Benjamin Dannan demonstrate how to determine how much CMRR is needed when introducing a ground loop isolator to correct the error in a 2-port measurement. 

Rohde & Schwarz efficiently tackles compliance verification challenges for PCIe 5.0 and 6.0 cables and connectors by automating the process with a new R&S ZNrun vector network analyzer automation suite option. 

A VNA equipped with time domain analysis that includes basic and advanced window and gating functionality can help produce more accurate and repeatable impedance measurements. Read on. 

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.

Measuring low impedance components with a 2-port vector network analyzer (VNA) is an essential technique that typically requires a VNA that costs more than $20,000. In this article, see how the authors measured an MLCC using $500 and an open-source simulation tool.

With more than three times more webinars offered in our Covid-19 era, we have more opportunities to accelerate up the learning curve or waste a lot of time. I sacrificed hours of my time watching dozens of webinars to identify these three princes. Check them out. They are well worth your time.

Signal integrity engineers almost always have to work with S-parameters. If you have not had to work with them yet, then chances are you will sometime in your career. As speed moves up in the double-digit GB/s regime, many industry standards are moving to serial link-based architectures and are using frequency domain compliance limits based on S-parameter measurements.

The dielectric constant, Dk, of a laminate will affect the characteristic impedance of a transmission line and its time delay. If you hope to achieve a specific target characteristic impedance on the first pass, it is essential to know the Dk of each laminate layer.  Here is a quick, simple way of measuring it.

Understanding how to make and interpret power supply impedance is very useful for optimized, low noise power supply design. With a simple pair of homemade probes, it’s easy to make the measurements using a compact VNA. Read on to find out how.