raja.cedt
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Dear all, If input impedance of two port network is resistive (irrespective of the circuit) then we can conclude noise at that port is 4KT*Real(Zin). This was stated very clearly in Probability, Random Variables and Stochastic Processes.
Now the question is in case of inductively degenerated LNA input impedance is resistive however there is no resistive element here, so it should have similar noise performance compared to 50Ohm terminated LNA's, but generally people easy it is less noisy(for the time being assume transistor noiseless)
Thanks, Raj.
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