Title :
Low group velocity traveling wave tube amplifiers
Author :
Kuang, E. ; Davis, T.J. ; Ivers, J.D. ; Kerslick, G. ; Nation, J.A. ; Schächter, L.
Author_Institution :
Lab. of Plasma Studies, Cornell Univ., Ithaca, NY, USA
fDate :
10/1/1994 12:00:00 AM
Abstract :
We report experimental and theoretical results from research into high power X-band traveling wave tube amplifiers designed to eliminate sidebands caused by reflections from the output of such structures. These amplifiers have a low energy velocity, such that the time it takes a wave to be reflected from the output to the input is of the order of, or greater than, the electron beam pulse duration. The elimination of sidebands and the effects of reflections is achieved by this transit time isolation, The bandwidth of the output spectrum is limited by the low pass-band of the periodic structures. Such amplifiers have been operated at power levels of up to 160 MW at 9 GHz for 50 ns pulse durations
Keywords :
travelling wave amplifiers; travelling wave tubes; 160 MW; 50 ns; 9 GHz; X-band; electron beam pulse duration; high power; microwave tubes; reflections; sidebands; traveling wave tube amplifiers; Acceleration; Bandwidth; Frequency; High power amplifiers; High power microwave generation; Klystrons; Optical reflection; Power amplifiers; Power generation; Pulse amplifiers;
Journal_Title :
Plasma Science, IEEE Transactions on
