Power amplifier transfer function plot

Question

nirbhay kumar 2018-7-30

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回答： Serien Ahmed 2021-3-15

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

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Answer 1

Dimitris Kalogiros 2018-7-30

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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.

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nirbhay kumar 2018-7-31

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

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