Title :
A high-power high-efficiency space TWT for 22-GHz band DBS
Author :
Momota, K. ; Aoki, Y. ; Yamamoto, T. ; Nakagawa, H. ; Sugimori, K.
Author_Institution :
Space Commun. Res. Corp., Tokyo, Japan
Abstract :
This paper describes a 22-GHz band, 300-W class coupled-cavity type TWT (traveling-wave tube) with a radiation-cooled collector which is now under development. An output power of 330 W with an overall efficiency of 50% is achieved. Three different TWTs are made to enable the evaluation of different slow wave structures and to improve the beam efficiency.<>
Keywords :
cavity resonators; cooling; direct broadcasting by satellite; travelling-wave-tubes; 22 GHz; 300 to 330 W; 50 percent; DBS applications; SHF; beam efficiency; coupled-cavity; high-efficiency tube; high-power operation; radiation-cooled collector; slow wave structures; space TWT; traveling-wave tube; Cavity resonators; Cooling; Satellite broadcasting; Traveling wave tubes;
Conference_Titel :
Electron Devices Meeting, 1992. IEDM '92. Technical Digest., International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0817-4
DOI :
10.1109/IEDM.1992.307471
