Title :
An axial monotron with rippled wall resonator
Author :
Barroso, J.J. ; Leite Neto, J.P. ; Kostov, K.G.
Author_Institution :
Associated Plasma Lab., Nat. Inst. for Space Res.-INPE, Sao Paulo, Brazil
Abstract :
With application to centimeter-wave monotron oscillators, the present work proposes a rippled wall cylindrical cavity that provides efficient coupling to a coaxial output circuit. Driven by a centered, solid 50 A, 34 keV electron beam, the corrugated cavity thus designed operates at 10.5 GHz in the 2/spl pi/-mode with two radial variations. The monotron operation is examined through 2.5 D particle-in-cell simulation giving 260 kW average power output. This corresponds to 15.5 percent overall efficiency at the theoretical limit of 20.0 percent electron efficiency as predicted by one-dimensional analysis.
Keywords :
cavity resonators; microwave tubes; oscillators; 10.5 GHz; 15.5 percent; 2.5D particle-in-cell simulation; 2/spl pi/-mode; 20.0 percent; 260 kW; 34 keV; 50 A; centimeter-wave monotron oscillators; coaxial output circuit; corrugated cavity; coupling; efficiency; electron beam; monotron operation; rippled wall cylindrical cavity; Cavity resonators; Circuit simulation; Coaxial components; Coupling circuits; Electron beams; Frequency; Oscillators; Physics; Plasma applications; Solids;
Conference_Titel :
Pulsed Power Plasma Science, 2001. PPPS-2001. Digest of Technical Papers
Conference_Location :
Las Vegas, NV, USA
Print_ISBN :
0-7803-7120-8
DOI :
10.1109/PPPS.2001.1001889
