Jan 29, 2009 #1 Z Zander_ua Newbie level 6 Joined Sep 15, 2006 Messages 13 Helped 3 Reputation 6 Reaction score 2 Trophy points 1,283 Activity points 1,358 Hello! Can you recommend me some literature on differential noise figure measurement techniques? I need to measure differential LNA. Thank you.
Hello! Can you recommend me some literature on differential noise figure measurement techniques? I need to measure differential LNA. Thank you.
Jan 30, 2009 #2 Mazz Advanced Member level 2 Joined Nov 3, 2001 Messages 674 Helped 131 Reputation 262 Reaction score 50 Trophy points 1,308 Activity points 5,463 You need two baluns, one at the input, the other one at the output and measure it in single end. Then apply Friis and deembed balun from measurement. I hope it can help. Mazz
You need two baluns, one at the input, the other one at the output and measure it in single end. Then apply Friis and deembed balun from measurement. I hope it can help. Mazz
Jan 30, 2009 #3 Z Zander_ua Newbie level 6 Joined Sep 15, 2006 Messages 13 Helped 3 Reputation 6 Reaction score 2 Trophy points 1,283 Activity points 1,358 Mazz said: You need two baluns, one at the input, the other one at the output and measure it in single end. Then apply Friis and deembed balun from measurement. I hope it can help. Mazz Click to expand... I have baluns from 2 to 18 GHz - but they are, by itself are active circuits - so NF is not an option to measure in such way((. Thanks anyway!
Mazz said: You need two baluns, one at the input, the other one at the output and measure it in single end. Then apply Friis and deembed balun from measurement. I hope it can help. Mazz Click to expand... I have baluns from 2 to 18 GHz - but they are, by itself are active circuits - so NF is not an option to measure in such way((. Thanks anyway!