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Numerical design and analysis of parasitic mode oscillations for 95 GHz gyrotron beam tunnel

机译:95 GHz回旋管束隧道寄生模式振荡的数值设计与分析

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摘要

The beam tunnel, equipped with the high lossy ceramics, is designed for 95 GHz gyrotron. The geometry of the beam tunnel is optimized considering the maximum RF absorption (ideally 100%) and the suppression of parasitic oscillations. The excitation of parasitic modes is a concerning problem for high frequency, high power gyrotrons. Considering the problem of parasitic mode excitation in beam tunnel, a detail analysis is performed for the suppression of these kinds of modes. Trajectory code EGUN and CST Microwave Studio are used for the simulations of electron beam trajectory and electromagnetic analysis, respectively.
机译:装有高损耗陶瓷的束隧道是为95 GHz回旋管设计的。考虑到最大的RF吸收(理想情况下为100%)和抑制寄生振荡,可以优化束隧道的几何形状。寄生模式的激励是高频大功率回旋管的一个相关问题。考虑到束隧道中寄生模式激励的问题,对抑制这种模式进行了详细分析。轨迹代码EGUN和CST Microwave Studio分别用于模拟电子束轨迹和电磁分析。

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