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Pseudo load pull sparam sim possible? Complex load sweep w/ termination?

Question asked by jktong on Oct 17, 2013
Latest reply on Oct 21, 2013 by volker_muehlhaus
Not sure if this is possible to do using SP Simulation or not.

I’m trying to do a small signal simulation of a filter (I have the .s2p data 2-port filter) and I wanted to put a complex load on the output and be able to fix the magnitude but sweep the phase.

I would like to be able to look into the input to see what my worst case reflection is based on the phase sweep.  I tried putting in a regular termination and using the Re+j*Im format, but it doesn’t seem to work (plus it won't allow a negative resistance).

This is sort of like a load-pull, but I did not want to run a harmonic balance.  This will help me to determine a worst case loading effect caused by this filter that is presented to my DUT.  The gamma I get from this will be what I use as a worst case load for an my actual bench level load-pull testing.

Edited by: jktong on Oct 17, 2013 3:46 PM