Hi all,
I am looking for answer in a system level. I am a board design engineer. So i understand little about IC design stuffs. So basically i am trying to understand if S11 is very bad (high mismatch loss) compared to noise figure of the LNA, should i consider S11 in Friss Formula for calculating noise figure of the system. By improving S11 so that mismatch loss is less than Noise figure of LNA, then how to calculate the Noise figure of the system. Does Bad S11 (high mismatch loss) or Noise figure of LNA will influence the overall system noise figure.
Regards
Vinod A H