Design of a 4kW CW X-Band Broadband Klystron

A continuous wave X-band klystron producing output power of 4 kW and bandwidth of over150MHz has been designed in Institute of Electronics, Chinese Academy of Sciences (IECAS). The design, manufacture, and test results have been reported in this paper. The results indicate that the performance of the tube satisfies the design requirement. The improved tube has a beam transmission rate over 97%, and operates very stably.