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Plotting Sopt

Question asked by ct5648 on Jun 25, 2013
Latest reply on Jun 26, 2013 by sdgrant
I have recently encountered a problem plotting my Sopt (gamma opt) on ADS that I measured on PNA-X N5242A using Maury ATS software. The raw data were saved in .sf format and I have used the s-parameter block to read and simulated the data on smith chart. At some frequency point, the Sopt that was displayed on the smith chart is not from the noise parameter data instead it shows the s-parameter data in the raw file.