Research Progress on X-Band Multibeam Klystron

Author

Ding, Yaogen ; Shen, Bin ; Cao, Jing ; Zhang, Yongqing ; Ruan, Cunjun ; Gu, Honghong ; Zhang, Ding ; Wang, Caiying ; Cao, Min

Author_Institution

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

Volume

56

Issue

5

fYear

2009

fDate

5/1/2009 12:00:00 AM

Firstpage

870

Lastpage

876

Abstract

The Institute of Electronics, Chinese Academy of Sciences, started developing X-band multibeam klystrons (MBKs) in 2000. Three types of X-band MBKs are currently under research and development; two types operate in the fundamental mode (TM₀₁₀), and the other type operates in a high-order mode (coaxial TM₃₁₀). These MBKs operate over the frequency range from 8 to 10 GHz and have peak powers of 50-100 kW, average powers of 2.5-5 kW, and bandwidths of 5%. The design considerations and testing results are presented in this paper. The technological problems, including nonhomogeneity of the RF electric field and low beam transmission, are also described. Further research work on the improvement of these MBKs is discussed.

Keywords

klystrons; RF electric field nonhomogeneity; X-band MBK; X-band multibeam klystron; frequency 8 GHz to 10 GHz; fundamental mode operation; high-order mode operation; low beam transmission; power 50 kW to 100 kW; Bandwidth; Cathodes; Coaxial components; Helium; Klystrons; L-band; Linear accelerators; Radio frequency; Research and development; Testing; Coaxial cavity; field homogeneity; high-order mode (HM); mode separation; multibeam klystron (MBK);

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2009.2015630

Filename

4810117