bandstopfilter
A bandstop filter, also known as a notch filter or band-rejection filter, is an electronic device or circuit designed to attenuate signals within a specific frequency range while allowing frequencies outside this range to pass through with minimal interference. Unlike low-pass or high-pass filters, which block either low or high frequencies respectively, a bandstop filter targets a distinct mid-range band of frequencies for attenuation.
Bandstop filters are commonly used in applications where certain unwanted frequencies must be eliminated. For example,
The design of a bandstop filter typically involves combining a low-pass and a high-pass filter in series,
Bandstop filters can be implemented in analog or digital forms. Analog filters use physical components like