i wanted to plot the noise figure of my LNA. i got the touchstone file from the network analyzer and imported in into ADS.
as you can see on the image it only shows the noise figure of 7.5 GHz and higher. every other plot like S-parameter was fine over the whole frequency range. and sind my use frequency of this LNA is 5.5 GHz the plot is kinda useless.
can someone explain to me why it won't show any noise figure up to 7.5 GHz?
i used the Network Analyzer Hewlett Packard 8720D. but i dont have the option to use it again. i only exported the touchstone file because i thought every relevant data would be saved there