Reply To: Q factor calculation

[Guilin Sun]

Hi Seyed, It is common that when the source spectral range changes the result will be different, mainly because the mesh and the material fitting is not the same. It converges if much higher mesh accuracy is used. However if the material fitting is different the resonance will still shift. To avoid this, please fix the wavelength range in material fitting.

In addition, you may also check the Q analysis group and result and see if it is reasonable, in particular when FFT method is used. If "findresonance" findresonances - Script command  is used, it might be better since it uses analytical method to get the resonant frequency and Q from a few cycles of signals containing the resonant information.