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band-pass filter

[band-pas, -pahs] /ˈbændˌpæs, -ˌpɑs/
noun, Electricity, Electronics.
1.
a filter that attenuates all frequencies except those of a specific band, which it amplifies.
Origin
1920-1925
1920-25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for bandpass filter

band-pass filter

noun
1.
(electronics) a filter that transmits only those currents having a frequency lying within specified limits Compare high-pass filter, low-pass filter
2.
an optical device, consisting of absorbing filters, for transmitting electromagnetic waves of predetermined wavelengths
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for bandpass filter

band-pass filter

arrangement of electronic components that allows only those electric waves lying within a certain range, or band, of frequencies to pass and blocks all others. The components may be conventional coils and capacitors, or the arrangement may be made up of freely vibrating piezoelectric crystals (crystals that vibrate mechanically at their resonant frequency when excited by an applied voltage of the same frequency), in which case the device is called a crystal band-pass filter or a monolithic filter.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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