I tried to improve the Q factor for a tank in a LRC parallel circuit by a factor of 30. To do that I used an inductance that is 30 times smaller. To keep the same resonant frequency, I replaced the capacitor with another one that is 30 times greater. According to the math, this should work.
When I implemented the circuit, I found out that the Q factor is only 16 times greater. Not what I expected. The resonant frequency remains unchanged in the new circuit. The output voltage is also lower than what I expected.
I don't know what is happening exactly. Any help would be appreciated. Thanks.
EDIT: I checked that the SRF of the components is much higher than the resonant frequency of the filter. So that I assume that the problem isn't related with this.