Title :
Numerical simulation studies of coaxial vircators
Author :
Shao, Hao ; Liu, Guozhi ; Song, Zhimin ; Fan, Yajun ; Song, Xiaoxin
Author_Institution :
Northwest Inst. of Nucl. Technol., Xi´´an, China
Abstract :
The characteristic frequency and energy conversion efficiency of the coaxial vircator are studied by numerical simulation method. Comparing with planar vircator, the coaxial vircator generates much narrow bandwidth and higher center frequency. The simulation results also evince that by adjusting d can tune the output microwave frequency in about two octave range under certain conditions. The negative pulsed coaxial vircator can significantly improved efficiency from about 4% of positive pulsed coaxial vircator to about 10%. The experimental apparatus are setting up, the experimental results will be given in future
Keywords :
accelerator RF systems; numerical analysis; vircators; bandwidth; center frequency; energy conversion efficiency; negative pulsed coaxial vircator; numerical simulation method; output microwave frequency; positive pulsed coaxial vircator; Anodes; Cathodes; Coaxial components; Diodes; Electron beams; Frequency; Geometry; High power microwave generation; Numerical simulation; Solid modeling;
Conference_Titel :
High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on
Conference_Location :
Haifa
Print_ISBN :
0-7803-4287-9
DOI :
10.1109/BEAMS.1998.816972
