Using a clustered cavity resonator with a modified gap in order to increase the effect on the bunching of electrons and increase the output efficiency of the klystron tube

Recent years in the fields of accelerators of fundamental particles, satellites and radars are completely devoted to the design of the high power klystrons. Increasing the efficiency of such klystrons is an exclusive problem, which requires fundamental research in the processes of interaction of the electron beam with the field of resonators. The aim of this paper is to present new ideas for increasing the output efficiency of klystron tubes using clustered cavity with gap displacement. In this paper,clustered cavity resonators are used in the design of electron bunching to determine the effect on the bunching and output efficiency of the klystron tube. To improve the efficiency of a klystron tube designed with five single cavity, first by using a clustered cavity in the redesign of the structure, an increase in efficiency of 2.63% and 6.11% for three clustered cavity has been achieved. This increase in efficiency has been done without increasing the length of the wave-beam interaction area. CST and KLYC software have been used to prove this claim.