Differential noise figure measurements

[Zander_ua]

Hello!

Can you recommend me some literature on differential noise figure measurement techniques? I need to measure differential LNA.

Thank you.

 

[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

 

[Zander_ua]

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

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!