Predicting the Rieke diagram of the high-power klystron

Accelerator applications of the high-power klystron usually require a fairly narrow bandwidth of a few percent. However, the VSWR which the accelerator presents to the klystron may vary considerably due to beam loading or changes in temperature or frequency; thus, a method of predicting the behavior of a klystron into a variable-VSWR load is quite valuable for these applications. In this paper, models of the output circuit and electron beam are presented and applied to calculate the Rieke diagram for a high-power klystron.