bandpas
Bandpas, short for band-pass filter, is a signal-processing circuit or device that allows signals within a specified frequency range to pass through while attenuating frequencies outside that range. It is characterized by a center frequency f0 and a bandwidth Δf, with passband edges at f1 and f2 where f1 ≈ f0 − Δf/2 and f2 ≈ f0 + Δf/2. The quality factor Q = f0/Δf measures selectivity; higher Q indicates a narrower passband.
Analog implementations commonly use resonant components or active topologies. Techniques include LC resonators, RC networks, and
Passband characteristics are defined by edges, ripple within the passband, and attenuation in the stopbands. Phase
Variations include narrowband and wideband forms, and band-pass behavior can be achieved by cascading high-pass and