Guilin Sun
Ansys Employee

This is different question from the topic. please write a new post later for new questions.

I always suggest to do iteration simulation manually: the random method gives you rough result. then you add a profile monitor for the specific resonant wavelength, run the simulation and find the hot spots. then move the dipole source and time monitor to those spots to better excite this resonant mode and pick up the strongest signal so you get better result. This process can be repeated untill Q does not change.  Depending on which method tofind Q, you may need to verify the resonant is true and the Q is high if you use the Fourier transform method by checking the log- curve is truely straight.

Please write a new post if you have further questions.