Power amplifier transfer function plot

Hi everyone,

I have my power amplifier and i want to draw the input vs output plot in matlab . I have signal generator and spectrum analyzer for given the input and taking the output in the from of I and Q from power amplifier. Please help me to draw the plot in matlab. Thank you

Answer 1

[Dimitris Kalogiros]

You must plot output power vs input power. And this must be done be regarding that PA's gain is 0dB. The later can be accomplished be calculating Pout-Pin at a point of the linear region and subtracting this result from all Pout values.

[nirbhay kumar]

But sir, i have to take variable input power to draw to PA plot or only one fixed input power. And after that i have to take correlation between input and output to see the lag . If any document which is explaining it please share with me Thank you

Answer 2

[Serien Ahmed]

Hey nirbhay kumar,

If you knew how to calculate the gain, let me know!