Design example for commercial high speed pcb

[yefj]

Hello ,Is there a PCB example which is routing differential signal over many layers.where there could be many differential ports in between then.
Is there such real life example I could try to do EM simulation from it?
Thanks.

 

[berkeman]

Hello ,Is there a PCB example which is routing differential signal over many layers.where there could be many differential ports in between then.

I believe that @Baluncore and I have both said that this is a bad practice, so there are probably very few examples of it. You really need to route fast signal traces in a consistent way on the same layer in order to minimize $Z_0$ discontinuities that will cause ringing, signal integrity issues and EMI problems.

 

[Baluncore]

Hello ,Is there a PCB example which is routing differential signal over many layers.where there could be many differential ports in between then.

What do you mean by "many differential ports in between then"?
Please provide a link to a simple circuit example that you want to route.