Good morning FvM,
I got only the real -and imaginary part of the s-parameter. They could be in a range of -1 and 1 and if I got no reflections at the output of my network (50 ohm termination), S11 and the reflection coefficient is the same. How is it possible to plot S11 in a smith chart (with a range of 0 to infinity), directly with S11? I only know to plot with the absolute value of the reflection coefficient and the angle, or calculate the normalized impedances before..
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Okay, sorry. I found my failure..
Your comment was great to think about my own understanding.
But the result is: if i change the reference to something else like 50 ohm, there are no changes with S11 in the smithchart?