EE-Training

Knowledge Makes You Curious

Video: Using a Network Analyzer as a TDR

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See how you can do fast TDR measurements using a network analyzer or VNA in this video. Whenever you are designing boards with specific characteristic impedances, you will want to be able to verify that on your fabricated boards. It’s recommended to put in test traces on each layer, but how do you measure this.… Read more

Video: PDN Measurement with a Network Analyzer

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See how easily you can do a PDN measurement using a network analyzer or VNA in the video here. Building solid power distribution systems (PDN’s) is maybe the most important learning from the signal integrity training overall. Because it matters. Both for the logic functions, the signal quality (integrity) and for the radiated emissions (EMI).… Read more

Measuring PDN on a populated board

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How about measuring the Power Distribution Network – or PDN – on a populated board? The post on the importance of the distance between the measurement points used when measuring the impedance of all the bypass capacitance on a board triggered another round of questions. Good. One of them is: Why not do a populated… Read more

PDN measurement points: Does it really matter?

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What would change if you move the PDN measurement points when you measure the PDN using a network analyzer? Ever since I did the video on how to use a network analyzer to measure the resulting impedance of all the bypass capacitors on a board, this question keeps coming up. One could speculate that two… Read more