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Full 2-Port vs. Economy VNAs

Question asked by daveak78 on Nov 5, 2014
Latest reply on Nov 7, 2014 by drkirkby
Hi, I'm curious about the advantages of getting a full 2-port VNA which can simultaneously measure S11, S21, S12, S22 compared with the economy models which just measure S11, S21 - what type of applications is the full measurement capability useful for? I'm guessing it's useful for non-passive/non-reciprocal networks, but don't have much experience with characterizing Active RF networks, so any feedback would be greatly appreciated. Many Thanks, Dave