When I try to optimize some parameter values in a subcircuit sometimes the optimizer works, for example if I try to optimize 2 parameters, but if I try 2 other parameters with/without the former ones, the optimizer fails, and says that no inproved solution can be found.
Any ideas how I can solve this or advices?
Maybe the problem is because I try to optimize in a mixer circuit and the optimizer becomes confused about the different freqs used?
I have also noted that the optimizer sometimes works if the solution method is changed, which is the most probably solver to work?
/Joakim