Title :
Dual-band dual-beam relativistic backward wave oscillator with different inner and outer slow-wave structure periods
Author :
Yongfu Tang ; Lin Meng ; Hailong Li ; Feng Liu
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A dual-band coaxial relativistic backward wave oscillator (RBWO) with two sets of different period of slow-wave structure (SWS) was presented and investigated in this paper. The nonlinear beam-wave interactions were analyzed and simulated with the 2.5-dimensional electromagnetic particle-in-cell (PIC) code. With electron beams of 400 kV and 17.1 kA guided by a magnetic field of 0.77 Tesla, an average power of 0.52 GW with a power conversion efficiency of 7.5% is obtained and the band frequencies are 12.3 GHz and 13.0 GHz, respectively.
Keywords :
backward wave oscillators; slow wave structures; 2.5-dimensional electromagnetic particle-in-cell code; current 17.1 kA; dual-band dual-beam relativistic backward wave oscillator; efficiency 7.5 percent; electron beams; frequency 12.3 GHz; frequency 13 GHz; magnetic flux density 0.77 T; nonlinear beam-wave interactions; power 0.52 GW; power conversion efficiency; slow-wave structure periods; voltage 400 kV; Dual band; Electric fields; Laser beams; Magnetic fields; Microwave filters; Oscillators; Periodic structures; PIC code; RBWO; beam-wave interactions; dual-band; slow-wave structure;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023531
