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在考虑相邻谐振腔间耦合作用对电场分布影响的基础上,分析了多间隙休斯结构耦合腔中存在模式电场分布的特点,采用双曲正割函数拟合代替传统无耦合单间隙腔中电场分布计算的高斯函数拟合,构建了多间隙耦合腔轴向电场分布函数计算的解析表达式。经不同几何参数和间隙数目耦合腔的仿真验证,电场分布解析计算结果与CST-MWS仿真结果具有好的一致性,对分布作用速调管注波互作用模拟和工程研制有益。
Based on the influence of the coupling between adjacent resonant cavities on the electric field distribution, the characteristics of the mode electric field distribution in multi-gap Hughes coupling cavity are analyzed. Hyperbolic secant function fitting is used to replace the traditional uncoupled single gap cavity The electric field distribution calculation Gaussian function fitting, the multi-cavity coupling cavity axial electric field distribution function calculation expression. The simulation results of the coupling cavity with different geometric parameters and the number of gaps show that the analytical results of the electric field distribution are in good agreement with the simulation results of CST-MWS, which is beneficial to the simulation and engineering development of the distribution interaction klystron wave interaction.