greetings folks.
i have the following problem:
i am running a pss simulation at 5.5G for a down-converting mixer. i have f_lo=5.500G. f_rf=5.502G, so pss computes beat frequency as 2MHz.
i can nominally run this simulation using the shooting method. however, i know want to include s-parameter models for components in the matching network, etc so i can't use shooting method anymore, and need to switch to harmonic balance.
this is where i run into a problem. to run harmonic balance at beat frequency of 2M and capture circuit behavior ar RF frequency of 5.5G requires enormous number of harmonics.
is there an obvious way to do this that i'm not aware of?