Title :
A novel phase noise suppression technique for high power microwave amplifiers
Author :
Goren, Y. ; Jensen, C. ; Gagne, D. ; Lally, P.M. ; Zavadil, D.
Author_Institution :
Teledyne Electron. Technol., Rancho Cordova, CA, USA
Abstract :
In addition to providing high gain and power, vacuum tubes can also be used as fast response phase-shifters, as well as fast response variable-gain amplifiers. Utilizing these characteristics, we can compensate for the phase fluctuations of power amplifiers. In this paper we will describe the application of this noise suppression technique to TWTs, though it can be used with other vacuum amplifiers.
Keywords :
feedback amplifiers; microwave phase shifters; microwave power amplifiers; phase noise; travelling wave amplifiers; TWTA; amplitude feedback loop; discrete signals; fast response phase-shifter; fast response variable-gain amplifiers; high power microwave amplifiers; phase fluctuations; phase noise suppression technique; random signals; Feedback; Fluctuations; Frequency; High power amplifiers; Microwave amplifiers; Microwave theory and techniques; Phase detection; Phase noise; Power amplifiers; Vacuum technology;
Conference_Titel :
Vacuum Electronics Conference, 2002. IVEC 2002. Third IEEE International
Print_ISBN :
0-7803-7256-5
DOI :
10.1109/IVELEC.2002.999410
