Coaxial Relativistic Backward Wave Oscillator and Coaxial Master Oscillator-Power Amplifier |
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| Authors: | GuangJun Wen JiaYin Li FuZhen Xie and ShengGang Liu |
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| Institution: | (1) University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China;(2) Logistical Engineering Institute, Chongqing, 400016, China |
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| Abstract: | A two and one half dimensional particle-in-cell code MAGIC has been used to investigate the nonlinear beam-wave interaction in a coaxial relativistic backward wave oscillator(RBWO) and optimize the dependence of the output power on electron beam nature parameter, slow wave structure geometry and magnetic guide field. The optimum conditions for the coaxial RBWO were obtained. The simulation results show: the coaxial RBWO can generate 3.2GW peak output power at 10.2GHz in the TM02 made when an annular electron beam of 20KA is accelerated across a diode potential of 600KV and guided through a section of uniform coaxial corrugated waveguide by an axial magnetic field of 25KG, the peak efficiency is about 27% . A novel coaxial master oscillator–power amplifier was presented in this paper. |
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