Oct 4, 2015 #1 G greenjuice Member level 1 Joined Aug 21, 2015 Messages 40 Helped 0 Reputation 0 Reaction score 0 Trophy points 6 Activity points 348 As you know, under matched condition, noise figure of lossy circuit has L. But I think its noise figuire is L+1[dB]. Because output noise power of lossy circuit has not only KTB of matched loaded resistance but also KTB-L from input source resistance. Why noise figure of lossy circuit is L?
As you know, under matched condition, noise figure of lossy circuit has L. But I think its noise figuire is L+1[dB]. Because output noise power of lossy circuit has not only KTB of matched loaded resistance but also KTB-L from input source resistance. Why noise figure of lossy circuit is L?