RADIO ASTRONOMY & COMMUNICATIONS A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site bandpass filter A filter that transmits a continuous range (band) of wavelengths but reflects or absorbs wavelengths above and below this range. Bandpass filters are specified by the full width at half maximum (FWHM) of their transmission peak: wideband (greater than 60 nm FWHM), medium band (20 to 60 nm FWHM), and narrowband (less than 20 nm FWHM). Related category    • RADIO ASTRONOMY AND COMMUNICATIONS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP