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Use of port extensions

Question asked by nsm on Aug 10, 2012
Latest reply on Aug 27, 2012 by Dr_joel

I have a set up where in I need to test multiple amplifiers sequentially. My measurement frequency is between 1 to 2GHz.I have a network analyzer, spectrum analyzer and a power meter as a part of the set up. I am using the 87050A option K22 switch matrix. If I need to test 6 amplifiers sequentially, then I would need to calibrate at the end of the cables that connects to the DUT before starting the measurements. This would be a very time consuming process. Instead can I not calibrate at the network analyzer ports and then use the port extension feature to extend the reference plane? This would be a much faster method. Is this a good approach for such measurements using a switch matrix?