S11 data in RI format - need suggestions/guidance

[karl9]

S11 data in RI format

Hi,

I measured S11 parameter for my amplifier. I checked on the data file. It turned out to be RI format. As followed:-

' freq ' ' reS11 ' ' imS11 '
' 2.00000000000E+09' ' -0.94886 ' '-0.366452 '

I wonder if I want to plot the S11 in dB scale. What should I do? Thanks for your suggestions in advance.

/Karl

 

[jayce3390]

Re: S11 data in RI format

Magnitude = √(ReS11²+ImS11²)

Phase = Arctan(ImS11/ReS11)

 

[kspalla]

Re: S11 data in RI format

Don't forget to convert in to dB of the magnitude