Title :
A square helix slow-wave structure for millimeter-wave TWTs
Author :
Wanghe Wei ; Yanyu Wei ; Zhaoyun Duan ; Minzhi Huang ; Lingna Yue ; Huarong Gong ; Wenxiang Wang ; Yubin Gong
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A square helix slow wave structure is proposed for high gain millimeter wave TWTs. The electromagnetic characteristics of this structure are calculated by HFSS. It is shown that, compared with the equivalent circular helix with the same cross section perimeter, the square helix structure holds higher interaction impedance and lower normalized phase velocity, which indicates higher output power and lower operating voltage in application of millimeter-wave TWT.
Keywords :
millimetre wave tubes; slow wave structures; electromagnetic characteristics; high gain millimeter wave TWT; interaction impedance; normalized phase velocity; square helix slow wave structure; Dispersion; Educational institutions; Electromagnetics; Electron tubes; Impedance; Millimeter wave radar;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956272
