RF PA- Change in input impedance with change in input power

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ashok15687

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Hello all,

In a RF power amplifier, why does the impedance looking into the PA change, with change in input power level?

Thanks
 

Hi Shok
In a RF power amplifier, why does the impedance looking into the PA change, with change in input power level?
Click to expand...
For large signal AC analysis , you can't neglect effect of large input signal . V/I both are large , hence , input impedance will be a bit affected .
Best Wishes
Goldsmith
 

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