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基于回旋行波放大器的非线性自洽理论,研究渐变输出端反射对回旋行波放大器注-波互作用的影响.数值模拟结果表明,对于Ka波段TE01模基波工作回旋行波放大器,渐变输出端渐变角的变化以及互作用长度的改变将导致不同的反射系数幅度和相位,从而影响注-波互作用过程,改变功率演化过程.在输出饱和功率不变的情况下,合理选择输出渐变角,可能可以减小注-波互作用长度,展宽互作用频带.
Based on the nonlinear self-consistent theory of the traveling-wave traveling-wave amplifier, the effect of the output of the tapered output on the injection-wake interaction of the gyro-traveling-wave amplifier is studied. The numerical simulation results show that for the Ka-band TE01 mode- The change of the end taper angle and the change of the interaction length will lead to different reflection coefficient amplitude and phase, which will affect the note-wave interaction process and change the power evolution process.With the output saturation power unchanged, the output gradient angle , It may be possible to reduce the note-to-wave interaction length and widen the interaction band.