Microwave Band Pass Filter Calculator

BW_60dB                    - 60 dB Bandwidth of BPF

BW_3dB               -  3 dB Bandwidth of BPF

fc                       - Center Frequency of BPF

'BPF' stands for Band Pass Filter. A microwave band-pass filter usually passes frequencies in one range which is referred as its frequency band and the median frequency in the band is called the center frequency. Using the 3 dB and 60 dB bandwidth the above calculator can calculate the shape factor and quality factor for any microwave band-pass filter.

The shape factor is defined as the ratio of two separate attenuation levels used to calculate the cutoff frequency.

The quality factor indicates how selective or non-selective the band pass filter is toward a certain frequency range. The broader the bandwidth, the lower the value of the Q factor, and vice versa.