Influence of Reflections of the Output Port on Beam-wave Interaction in Gyrotron Traveling Wave Amplifier |
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| Authors: | Haiyan Sun Chongqing Jiao and Jirun Luo |
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| Institution: | (1) Institute of Electronics, Chinese Academy of Sciences, Beijing, 100190, China;(2) Graduate School, Chinese Academy of Sciences, Beijing, 100039, China;(3) North China Electric Power University, Beijing, 102206, China |
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| Abstract: | Based on the nonlinear self-consistent theory of gyrotron traveling wave amplifier (gyro-TWA), the influence of the reflections
of the output port with the taper on the beam-wave interaction in the gyro-TWA is studied. The simulation results show that
the reflections have great effects on the TE01 mode gyro-TWA operating at the fundamental. The influence of the taper angle and the interaction length on the beam-wave
interaction and the power profile is discussed and the corresponding physical mechanism is analyzed. The saturated output
power keeps same approximately with the increase of the taper angle in the presence of reflection while the saturated gain
decreases obviously. |
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| Keywords: | gyro-TWA Beam-wave interaction Reflection coefficient |
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