Title :
Design and development of Ku-band 140W space TWT
Author :
Choudhury, Amitavo R. ; Sharma, Rajendra K. ; Bera, Anirban ; Sharma, Sudhir M. ; Srivastava, Vishnu ; Bhaskar, Puvvada V. ; Singh, Radhey R. ; Prasad, Kanchi S. ; Ghosh, Sanjay ; Kiran, V. ; Patnaik, R.R.
Author_Institution :
Central Electron. Eng. Res. Inst., Pilani
Abstract :
A Ku-band 140 W space TWT of gain (>55 dB), electronic efficiency (>24%), collector efficiency (>75%), overall efficiency (>55%), I/M components (<-12 dBc) for frequency 10.9-11.7 GHz has been designed and developed for satellite communication system. This paper presents critical design issues and approach related to different assemblies like electron gun, PPM focusing, helix SWS, input & output couplers, and 4-stage depressed collector in order to meet the stringent requirement of space TWTs.
Keywords :
satellite communication; travelling wave tubes; high power microwave amplifier; satellite communication system; space TWT; Anodes; Assembly; Cathodes; Couplers; Design optimization; Electron beams; Electron emission; Linearity; Magnetic field measurement; Radio frequency;
Conference_Titel :
Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-1715-5
DOI :
10.1109/IVELEC.2008.4556436
