复合腔回旋管的分析与数值计算

Analysis and Numerical Results of Complex-Cavity Gyrotron

本文对复合腔回旋管进行了分析与计算。在双模与多模近似情况下,对复合开放式谐振腔作为一个整体进行了分析,并数值计算了复合腔的谐振频率、Q值与场分布。在此基础上,对复合腔回旋管进行了大信号分析,计算了基波与二次电子回旋谐波情况下电子效率与一些参数的关系。结果表明,选用适当的复合腔结构,可使输出腔工作于高次模式,且可能获得较高的电子效率与很高的输出功率。

A complex-cavity gyrotron is analysed and calculated in the paper. The resonance frequency, Q-value and field profile function are solved numerically. On the basis of this, the large signal analysis of it is carried out. The relation between the interaction efficiency and some parameters is investigated in the case of the interaction of fundamental wave with secondary electron harmonic. The results show that, the Complex-cavity may operate on a high order mode, and provide a very high output power and rather high interaction efficiency by applying appropriate structure of complex-cavity.