Title :
P1–7: Efficiency enhancement in transit-time microwave tubes by RF - field stepping
Author :
Barroso, Joaquim J.
Author_Institution :
Assoc. Plasma Lab., Nat. Inst. for Space Res. - INPE, São José dos Campos, Brazil
Abstract :
A comparative study is given on electron bunching in transit-time tubes with uniform and stepped RF electric-field profiles. It is shown that the stepped profile provides a two-fold enhancement in the conversion efficiency in comparison with that obtained with a longitudinally uniform electric-field distribution. This improvement arises from a phase synchronization process due to the action of RF electric fields of reversed signs along the interaction space.
Keywords :
electric fields; microwave tubes; RF-field stepping; electric-field distribution; electron bunching; phase synchronization process; transit-time microwave tube; Electron beams; Electron tubes; Energy states; Equations; Laboratories; Microwave generation; Plasmas; Radio frequency; conversion efficiency; electron bunching; microwave generation; transit-time microwave tubes;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503578
