band-pass filter

pasovno-prepustni filter

band-pass filter (Wikipedia)
"Bandpass" redirects here. For other uses, see Bandpass (disambiguation).

Bandwidth measured at half-power points (gain -3 dB, √2/2, or about 0.707 relative to peak) on a diagram showing magnitude transfer function versus frequency for a band-pass filter.
A medium-complexity example of a band-pass filter.

A band-pass filter or bandpass filter (BPF) is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.

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