Phase Shifter Measurement

Hi, everyone.

I have some questions about the phase shifter measurements. Generally speaking, is it possible to measure the active phase shifter noise figure by spectrum analyzer and VNA? Any references or information about the method and test fixture designs will be appreciated.

Thanks in advances.

VNA is not a good choice for noise figure measurement, but spectrum analyzer can be used. Check Agilent web site for application notes about Y-method of noise figure measurements. I include some here. One AN may be found with this link:

https://www.edaboard.com/viewtopic.p...043013#1043013