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how to measure the BW of a LNA

Question asked by robismyname on May 21, 2012
Latest reply on May 22, 2012 by daras
As an exercise I was asked to evaluate the BW of a LNA. rf2472g

What is the BW of the LNA anyway? Taking a shot at the definition, is it just the range of spectrum where the LNA can amplify a input signal?

How would you measure the BW of a LNA with a VNA? Taking a shot at the definition, is it just S21 log mag across the entire frequency range of the VNA (30MHz to 20GHz)? Is the VNA the correct instrument to measure the LNA BW?

Please advise.  

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