Title :
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
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;
Conference_Titel :
Millimeter Waves (GSMM), 2012 5th Global Symposium on
Conference_Location :
Harbin
Print_ISBN :
978-1-4673-1302-5
DOI :
10.1109/GSMM.2012.6314062
