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how to test the S11, S12, S21, S22 of my LNA demo board

Question asked by robismyname on May 20, 2012
Latest reply on May 21, 2012 by zubair_rafiq
I received a RFMD LNA (rf2472g)  board. I would like to test the S parameters.

I dont know for sure how to connect the my INPUT and OUTPUT of the LNA to my VNA Port 1 and Port 2.

I want to be sure before i do this because I dont want to damage/ruin the board.

Do i just connect VNA port 1 to LNA input and VNA port 2 to LNA output?

Would I ever need to connect the VNA port 2 to the LNA input?

Would I ever need to connect the VNA port 1 to the LNA output?  

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