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Notch filterA notch filter for the selective attenuation of a narrow band of frequencies out of a larger band was developed. A helical resonator is connected to an input circuit and an output circuit through discrete and equal capacitors, and a resistor is connected between the input and the output circuits.
Document ID
19770011363
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Shelton, G. B. (Sperry Rand Corp. Huntsville, Ala., United States)
Date Acquired
August 8, 2013
Publication Date
February 8, 1977
Subject Category
Communications And Radar
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-676957
Patent Number: NASA-CASE-MFS-23303-1
Patent Number: US-PATENT-4,007,434
Accession Number
77N18307
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-MFS-23303-1|US-PATENT-4,007,434
Patent Application
US-PATENT-APPL-SN-676957

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