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mixer design - how to simulate diode impedances

Question asked by PEPPERL on May 3, 2007
Latest reply on Feb 23, 2009 by sjheng

I want to simulate a single balanced diode mixer. First of all I want to find out about the input impedances of LO,RF and IF port - depending on the LO power applied. No bias for the Schottky diode. How do I setup the ADS-simulation to obtain the S-parameters while LOpower is applied. What kind of sources do I need ? Do I run an S-parameter simulation or HB ? I didn't find any explicit example of how to set up the simulation for input impedances.
Thanks for your help.