narrow-band-pass filter
narrow-band-pass filter
[′nar·ō ¦ban ‚pas ‚fil·tər] (electronics)
A band-pass filter in which the band of frequencies transmitted by the filter has a bandwidth which is small compared to the average frequency of the band.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.