Development of a C-Band Klystron With a 360-MHz Instantaneous Bandwidth

Author

Zhang, Zhaochuan ; Fan, Junjie ; Zhang, Yuwen ; Wang, Ruimin ; Guo, Yanfang ; Zhu, Fang ; Fu, Chunjiu

Author_Institution

Inst. of Electron., Chinese Acad. of Sci., Beijing, China

Volume

57

Issue

12

fYear

2010

Firstpage

3485

Lastpage

3490

Abstract

This paper presents the design considerations, the simulation results, and the test results for a C-band klystron design with a 360-MHz instantaneous bandwidth, which was developed from March 2005 to June 2008. Five klystrons were built and tested. Over 800 kW peak output power with a 400-MHz instantaneous bandwidth (constant RF input drive over frequency) was measured at a 0.525% RF duty cycle. The measured electron beam-to-RF conversion efficiency is 30%, and the output power fluctuation over frequency is less than ±0.75 dB. The technological problems, including gain/power dip over frequency and low electron-beam transmission, are also discussed.

Keywords

electron beam applications; klystrons; C-band klystron design; bandwidth 360 MHz; constant RF input drive over frequency; electron beam-to-RF conversion efficiency; instantaneous bandwidth; low electron-beam transmission; output power fluctuation over frequency; peak output power; Bandwidth; Cavity resonators; Electron beam applications; Electron optics; Klystrons; Power generation; C-band klystron; electron-beam transmission; filter-loaded resonant coupled-cavity output (RCCO) circuit; gain/power dip; instantaneous bandwidth; test specifications;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2010.2076170

Filename

5595025