Title :
Analysis of the coaxial helical-groove slow-wave structure
Author :
Yu, Guofen ; Wang, Wenxiang ; Wei, Yanyu ; Liu, Shenggang
Author_Institution :
Inst. of High Energy Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fDate :
1/1/2002 12:00:00 AM
Abstract :
A coaxial helical-groove structure is presented and analyzed in this paper. The dispersion equation and coupling impedance of the structure are given. Numerical calculations of the dispersion relation and coupling impedance with different structure dimensions are carried out. Calculated results indicate that the cold bandwidth of this structure can reach 60%, while the coupling impedance is more than 16 Ω. It is shown that the coaxial helical groove is a wide-band slow-wave structure with high-power capacity
Keywords :
coaxial waveguides; dispersion (wave); helical waveguides; slow wave structures; 16 ohm; TWT; coaxial helical-groove slow-wave structure; cold bandwidth; coupling impedance; dispersion equation; high-power capacity; structure dimensions; wide-band structure; Bandwidth; Coaxial components; Conductors; Coupling circuits; Cutoff frequency; Dispersion; Equations; Impedance; Load flow; Wideband;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
