DocumentCode
1028335
Title
A Tunable Rejection Filter
Author
Taylor, R.C.
Author_Institution
Engineering department, Western Union Telegraph Company, New York, N. Y.
Volume
65
Issue
5
fYear
1946
fDate
5/1/1946 12:00:00 AM
Firstpage
263
Lastpage
267
Abstract
The theory and design of a tunable bridge-type narrow-band rejection filter are given for the general case, considering elements with dissipation. Range of adjustment and effect of manufacturing variations are discussed with the help of impedance circle diagrams. Approximate attenuation formulas for various levels of attenuation are derived, and a convenient graphical method of studying performance is suggested. A formula for the effective width of a special arrangement of two filters in tandem is derived.
Keywords
Arm; Attenuation; Bridge circuits; Filters; Frequency; Impedance; Manufacturing; Narrowband; RLC circuits; Resonance;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Transactions of the
Publisher
ieee
ISSN
0096-3860
Type
jour
DOI
10.1109/T-AIEE.1946.5059342
Filename
5059342
Link To Document