Practical Design of Differential Vias
A scalable, topology-based equivalent circuit model can accurately match via behavior to a bandwidth well above the application bandwidth, typically above 10 GHz. A look at a very simple way of modeling a differential via and translating its geometry into an equivalent circuit model.
by Eric Bogatin, Bert Simonovich and Yazi Cao
Are Your PCB Data Unprepared?
It is great to have a fabricator that can provide its “secret sauce” to make the design work, but be ready to get locked into that supplier, because another fabricator’s recipe will be different. As a designer, is that a risk you want to take?
by Jeff Champa