DocumentCode
3553812
Title
A 100 watt TWT amplifier for the space shuttle
Author
Eallonardo, C.M. ; Behler, B.J.
Author_Institution
Hughes Aircraft Company, Torrance, California
Volume
19
fYear
1973
fDate
1973
Firstpage
399
Lastpage
399
Abstract
A high efficiency 100 watt traveling-wave tube amplifier for space communication at C-band, 5.9- 6.4 GHz, with integrated power supply and heat pipe cooling is described. The tube incorporates a helix slow wave structure with a velocity resynchronization taper and three-stage doubly-depressed collector for efficiency enhancement. The tube generates RF power at an overall efficiency of 50%, while the power conditioner maintains greater than 80% efficiency over line, load and temperature variations. The TWTA therefore delivers RF power at over 40% efficiency from an unregulated DC power line. High efficiency, as an integrated TWTA, is achieved without sacrifice of communication system type parameters such as AM/PM conversion, transfer curve linearity, and intermodulation distortion.
Keywords
High power amplifiers; Power generation; Power supplies; Radio frequency; Radiofrequency amplifiers; Space cooling; Space exploration; Space heating; Space shuttles; Temperature;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1973 International
Type
conf
DOI
10.1109/IEDM.1973.188739
Filename
1477616
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