DocumentCode
1219854
Title
Traveling-Wave Tubes
Author
Pierce, J.R. ; Field, Lester M.
Author_Institution
Bell Telephone Laboratories, New York, 14, N.Y.
Volume
35
Issue
2
fYear
1947
Firstpage
108
Lastpage
111
Abstract
Very-broad-band amplification can be achieved by use of a traveling-wave type of circuit rather than the resonant circuit commonly employed in amplifiers. An amplifier has been built in which an electron beam traveling with about 1/13 the speed of light is shot through a helical transmission line with about the same velocity of propagation. Amplification was obtained over a bandwidth 800 megacycles between 3-decibel points. The gain was 23 decibels at a center-band frequency of 3600 megacycles.
Keywords
Bandwidth; Cathodes; Charge carrier processes; Electromagnetic scattering; Electron beams; Electron tubes; Impedance; Laboratories; RLC circuits; Telephony;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1947.226216
Filename
1697303
Link To Document