Title :
Development of an S-band 22-kW-Average-Power-Klystron With 7.14% Relative Bandwidth
Author :
Zhang, Zhaochuan ; Shen, Baoli ; Yu, Xiaojuan ; Zhu, Fang ; Han, Yong ; Huang, Yunping ; Zhang, Feng
Author_Institution :
Inst. of Electron., Chinese Acad. of Sci., Beijing, China
Abstract :
This paper presents the design considerations, simulation results, and test results for an S-band 22-kW-average-power 7.14%-relative-bandwidth klystron design with 4-min startup, which was developed in the Institute of Electronics, Chinese Academy of Sciences (IECAS) before December 2009. Ten klystrons were built and tested. Over 1.1-MW peak output power with 7.14% relative bandwidth was measured at a 2% radio-frequency (RF) duty cycle. The measured startup time is 4 min. A method of supplying the heater with electricity is proposed, the manner of improving the RF output performance is also described, and both of them have been validated through the further experiments with a specialized electron gun and the hot-test results of the klystron, respectively.
Keywords :
UHF tubes; electron guns; klystrons; microwave tubes; RF duty cycle; S-band average power klystron; electron gun; frequency 2 GHz to 4 GHz; heater; power 22 kW; radiofrequency duty cycle; relative bandwidth klystron design; startup; Bandwidth; Cathodes; Cavity resonators; Electron beams; Heating; Klystrons; Radio frequency; 22-kW average power; 4-min startup; 7.14% relative bandwidth; Klystron; power dip/gain dip; test specifications;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2011.2153857
