Title :
20 GHz 60 W CW helix TWT for space application with enhanced efficiency and reduced nonlinearities
Author_Institution :
AEG, Ulm, West Germany
Abstract :
Results are presented on a 20-GHz 60-W traveling wave tube (TWT) with improved efficiency and nonlinearity. Helix taper and a three-stage-plus-spike collector improved the overall efficiency to up to 44%. The electronic efficiency was 14-15%, and the nonlinear phase shift was less than 43 degrees . It is concluded that the tube can compete with the conventional 12-GHz satellite traveling wave tube.<>
Keywords :
satellite relay systems; telecommunication equipment; travelling-wave-tubes; 14 to 15 percent; 20 GHz; 44 percent; 60 W; CW helix TWT; efficiency; electronic efficiency; nonlinear phase shift; nonlinearity; satellite traveling wave tube; space application; three-stage-plus-spike collector; Cathodes; Delay lines; Electrodes; Electron beams; Frequency; Power generation; Satellites; Switches; Thermal force; Thermal resistance;
Conference_Titel :
Electron Devices Meeting, 1988. IEDM '88. Technical Digest., International
Conference_Location :
San Francisco, CA, USA
DOI :
10.1109/IEDM.1988.32835
