Via modeling - what do I really need?
The whole via simulation issue is admittedly complicated, and I think really boils down to whether the vias are single-ended or differential, and at what speeds you are running.
When the vias are differential, the return current is basically self-contained around the vias since they have equal but opposite signals on them. Because of this, the built-in analytical model in HyperLynx models differential … Read More
Tags: vias, 3D field solver, HyperLynx, 3D EM, SERDES, via, IE3D, PDN
Bends presenting on a SERDES channel introduce discontinuity effects. Normally, such effects are caused by the extra capacitance at the corner of a bend. It will add reflections to the channel signal and can generate radiation at higher frequencies. Minimizing discontinuity effects of SERDES channels has become an issue channel designers need to consider.
In RF design applications, engineers have … 
A couple of weeks ago, two things happened. First, I changed television/Internet suppliers. Second, AT&T, who had initiated flat-rate service for both voice and data on their cell network, stopped taking orders for the data portion.
So, how do these items go together, and how am I going to tie this to a Mentor product? Here’s the answer to the first question; I hope to figure out how I’m going to …