Title :
Traveling-Wave Tubes
Author :
Pierce, J.R. ; Field, Lester M.
Author_Institution :
Bell Telephone Laboratories, New York, 14, N.Y.
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;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1947.226216
