eguruchela

Calculate 3dB Bandwidth and Cutoff Frequency

Calculator finds 3dB Bandwidth and Cutoff Frequency for selected values.

Enter Center Frequency: (f0) Hz
Enter Quality Factor (Q):
 
 
Lower cut off frequency (f1)= Hz
Upper cut off frequency (f2)= Hz
3 dB Bandwidth (BW)= Hz
A cutoff frequency is a border in a system's frequency response at which energy flowing through the system starts to decrease or reflected without being transmitted.
Formula:
CodeCogsEqn(43).gif
CodeCogsEqn(43).gif
Where,
BW=Bandwidth of a circuit in unit of frequency,
fo=center frequency,
f2=the upper cut off frequency,
f1=the lower cut off frequency