Nonlinear theory of beam-wave interaction in gyro-TWT with spiral waveguide
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摘要: 螺旋波纹波导回旋行波管与采用光滑圆波导的回旋管相比,有较大的带宽。介绍了该类回旋行波管的非线性注波互作用理论。计算结果表明该理论计算结果与实际实验报道的结果基本符合,相应的电子效率达到29%,饱和增益达到37 dB,工作磁场0.21 T,电压185 kV,电流19 A。Abstract: Gyro-TWT (traveling wave tube) with helical waveguide has wider instantaneous frequency bandwidth than that with smooth waveguide. This paper introduces the nonlinear theory of its beam-wave interaction. The calculation shows that, the electron efficiency reaches 29%, and the saturated gain is 37 dB, when the working magnetic field is 0.21 T, the voltage is 185 kV and the current is 19 A. The calculated results accord with that reported in literature.
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Key words:
- helical waveguide /
- gyro-twt /
- beam-wave interaction
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