the smith tools of the Ansoft's #erenade

hello,everyone.
i have two questions when i use the smith tools.
first,the center frequency calculated by smith tools (idea electronic modeling)is higher than the euqal physical modeling.
and another,in the design of lna,pa,etc,the smith tools is accurate or not?
thanks!

Can i calculate amp with the smith tools?

serenade smith tool is good start for narrow band match problem.you need more optim work to do after you get a prototype from it.