Impedance calculator for asymmetric differential stripline

[yungman]

Hi

Anyone know of an online asymmetric differential stripline impedance calculator? I already have the Saturn pcb design tool kit. I just want to find a second one to cross check the result. My experience is I have seen two calculators gave different results.

Thanks

 

[Jeff Rosenbury]

Broadside or edge coupled topology? (Not that I have either.)

You may need to calculate for yourself. A shortcut might be to find the difference between the symmetric and asymmetric unbalanced line and see if it can be replicated. This is possibly true for the edge coupled; not so much for the broadside.

Anyway, this post is mostly a bump in hopes some smarter engineer comes along.