PCB Signal Integrity: Understand Coupling

[@paulf1071]

Great presentation, thanks for putting in the hard work! I'm guessing calculating the values of termination resistances is a whole other lesson...

[@hamzasaleem3163]

Great Work.. I have a question. Does forward/backward crosstalk not reflect at far-end? if not properly terminated at far-end. Just like the far-end was not terminated in "Basic concept" slide.

[@ryanjohnson4565]

At 1:41, its said that if there is no return path, current can't flow. In this video (at 7:00) kzbin.info/www/bejne/r4TYho17n6aFhrs Rick Hartley states that the purpose of shielding around a signal wire purely to extend the faraday cage--connecting it to the chassis, not circuit ground. So how does a signal flow through if there is no return path, and the electric field has nothing to couple to?

[@vatsan2483]

Hey I am glad you asked this question.. both statement u pointed are valid.. "Rick Hartley states that the purpose of shielding around a signal wire purely to extend the faraday cage".. It is important to understand which field he is talking of.. here this means to contain the external field in microstrip to contain EM field in the air.. thats where u involve chasis and all.. this means return path still exist (kinda implicit, but I understand why u r confused).. without a return path there is no EM flow.. energy is contained in the fields the dielectric spaces.. so to even have flow of current there is a closed loop and this mandates a return path to close the loop

[@_805Mustang]

Would it be possible to star the software used for that simulation. I am trying to do something similar using keysight Genesys and EM pro with very limited time to learn the ins and outs of those softwares. Thank you.

[@carlossal04]

What software did you to simulate those electric and magnetic field on the trace?

[@harshareddy29]

Sir, can u upload more videos....