Question about Stripline and Impedance

[robertferanec]

This will help you to understand reference planes better: https://youtu.be/kdCJxdR7L_I

[Bermell]

Hello,

I need to use controlled impedance so I have to calculate the width for single tracks and width and gap, for differential pairs .

I use the PCB Saturn software. For the microstrip case, I think it is easy to get it.

My question is about stripline:

In the software, i can set the geometry, but i can't set the funcionality of the reference planes. I mean, there is a reference plane above and below, so does the type of reference plane not matter ? What happens when one reference plane is GND and the other one is a power plane?

I don't know if this question has been asked before.


Thank you very much in advance