Noun
passband (plural passbands)
The range of frequencies or wavelengths that can pass through a filter without being reduced in amplitude.
As is clear from the image, the elliptic filter is sharper than the others, but at the expense of ripples in both its passband and stopband. Source: Internet
Digital transmission There are two main categories of digital communication transmission methods: baseband and passband. Source: Internet
By contrast, passband bandwidth is the difference between a highest frequency and a nonzero lowest frequency. Source: Internet
Depending on application, the required attenuation within the stopband may typically be a value between 20 and 120 dB higher than the nominal passband attenuation, which often is 0 dB. Source: Internet
DSL When loading coils are in place, signal attenuation remains low for signals within the passband of the transmission line but increases rapidly for frequencies above the audio cutoff frequency. Source: Internet
E.g., a passband filter that has a bandwidth of 2 MHz with center frequency 10 MHz will have a fractional bandwidth of 2/10, or 20%. Source: Internet