Title :
Behavior of a TWTA with a single or multicarrier input signal for telecommunication applications
Author :
Laporte, C. ; Lapierre, L. ; Mallet, A. ; Anakabe, A.
Author_Institution :
Centre Nat. d´´Etudes Spatiales, Toulouse, France
Abstract :
This paper deals with the evaluation of the traditional traveling wave tube amplifier (TWTA) output power model completed with an associated power efficiency estimation with multi carrier signal. A 120 W Ka band linearized TWTA is used to propose a full comparison between simulated and measured results concerning up to four modulated carriers as an input signal. Three different regions of output operating point are proposed, each correlated to a growing complexity needed in signal simulation from CW to all multiplex composed by modulated carriers.
Keywords :
microwave amplifiers; microwave tubes; travelling wave amplifiers; travelling wave tubes; 120 W; modulated carriers; multicarrier input signal; output operating point; power efficiency estimation; signal simulation; single input signal; telecommunication applications; traveling wave tube amplifier; Energy consumption; Frequency; Payloads; Phase measurement; Power amplifiers; Power generation; Power measurement; Power system modeling; Satellites; System testing;
Conference_Titel :
Microwave Conference, 2005 European
Print_ISBN :
2-9600551-2-8
DOI :
10.1109/EUMC.2005.1610273
