Simulation Computation Method for Calculating the Impedance Matrix of Double Gap Cavity of Klystron
速调管双间隙腔的间隙阻抗矩阵频率特性的模拟计算方法

A simulation computation method for calculating the impedance matrix of coupling double gap cavity of broadband klystron is developed in this paper. The method is used to calculate the impedance matrix and equivalent gap impedance of the double gap cavity with overlap modes of a practical S band broadband klystron. The calculated results are compared with cold test data. The relative difference between two kinds of data is small, only about 10% to 15%, which is a powerful proof for reliability of the simulation computation method.