A novel helical slow-wave structure for millimeter-wave traveling-wave tube

Author

Liu, Luwei ; Wei, Yanyu ; Xu, Xiong ; Shen, Fei ; Zhao, Guoqing ; Huang, Minzhi ; Tang, Tao ; Wang, W.X. ; Gong, Yubin

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Vacuum Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

27-30 May 2012

Firstpage

312

Lastpage

315

Abstract

A novel helical slow-wave structure is proposed to develop wide-bandwidth, high-gain, high-power millimeter-wave traveling wave tube. This structure evolves from a conventional helical slow-wave structure with three parallel rectangular or other arbitrarily-shaped slots made in the outside of the helix. In this paper, the electromagnetic characteristics and thermal analysis of this structure are obtained using the finite-element-method. From our calculations, the novel and the conventional structure have similar dispersion characteristics, while the novel structure has higher heat dissipation capability than that of conventional one.

Keywords

finite element analysis; millimetre wave tubes; slow wave structures; thermal analysis; electromagnetic characteristics; finite element method; heat dissipation; helical slow-wave structure; high-gain millimeter-wave traveling wave tube; high-power millimeter-wave traveling wave tube; thermal analysis; wide-bandwidth millimeter-wave traveling wave tube; Dispersion; Electron tubes; Finite element methods; Heating; Impedance; Millimeter wave technology; Temperature distribution; millimeter-wave; slots; thermal analysis; thick helix; traveling wave tube;

fLanguage

English

Publisher

ieee

Conference_Titel

Millimeter Waves (GSMM), 2012 5th Global Symposium on

Conference_Location

Harbin

Print_ISBN

978-1-4673-1302-5

Type

conf

DOI

10.1109/GSMM.2012.6314062

Filename

6314062