具有正交直流场的边廊模(TEm11)回旋脉塞的研究

本文给出了具有正交直流场的边廊模回旋脉塞的线性和非线性分析。对模型的小信号起振,同轴腔内导体对模式的截止频率和分割度的影响以及外加电压对电子回旋频率,起振束功率和互作用效率的影响作了较详细的研究。计算表明,对m=2,互作用效率可达41%。我们还将其结果与相同条件下圆柱腔情况作了比较。这些分析有益于工程设计。

STUDY OF CROSSED FIELD GYROTRON OPERATING ON TEm11 WHISPERING GALLERY MODE

A linear and nonlinear analysis of a crossed field gyrotron operating on theTEm11 whispering gallery mode are presented. The detailed discussions are given for the starting oscillation condition, the effect of the internal conductor in coaxial cavity on the cut-off frequency of mode and spacing between adjacent modes as well as the effects of the applied voltage on the cyclotron frequency of electron, the starting oscillation beam power and electron efficiency. It is shown that the efficiency of 41% may be obtained for m = 2. A comparison of these results with those in cylindrical cavity is made. The analysis is helpful for the engineering design.