tulip
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In Razavi’s book <RF microelectronics>(second edition), it says “ For a sinusoidal input voltage with an rms value of Vin, the power delivered to the input port is equal to Vin2/Re[Zin]”
My question is : if the input impedance of the port is Zin=A+jB, after some calculations, I get a different result, as shown in the attachment. I do not know which one is correct. Would you please read the attachment and see which one is correct.
Thank you very much.
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