Hi
Thanks a lot for your responses.
Jim, I was not aware that Er would potentially drop significantly by frequency. I will check if data exists for Er vs frequency. Thanks.
Donald, good point on the trace width at the connector pins. I have used the recommended footprint from Molex, but I do see the issue that the pad is part of the trace and does not satisfy the trace width that I calculated. Thanks.
I will order a range of test boards with different trace widths and ground gaps to see if I can get closer.
Do any of you have an idea to what a target S11 / S21 should be for such as trace?
br
Christian
