I am looking at the Q factor of certain inductors from the datasheet - inductor datasheet
Now, I am trying to analyse the Q-factor for the 2.2uH inductor. The chart shays that the Q factor is 48 measured at a frequency of 7.9MHz. But, if I look at the graph it says a different picture. At 7.9MHz its is almost 70.
Also, my need is for the frequency range 300MHz and 2.4GHz (different inductors ofcourse). So based on the graph the Q factor is not available for those frequencies. Do Q factors decay away to very low values after the peak or will it rise again at other frequencies ?