Voice of the Experts: Signal Integrity
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The articles and columns contained in this section come from members of the Signal Integrity Journal’s Editorial Advisory Board (EAB). Members of the EAB review every technical article posted on the site, and are often sought after for their advice. In this column area, the EAB will talk about issues related to signal integrity.

Via Stubs – Are They all Bad?

We worry about via stubs in high-speed designs because they cause unwanted resonant frequency nulls which appear in the insertion loss plot (IL) of the channel. But are all via stubs bad? Well, as with most answers relating to signal integrity, “It depends.”


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