Title :
Dispersion Characteristics of Two-Beam Folded Waveguide for Terahertz Radiation
Author :
Ke Li ; Wenxin Liu ; Yong Wang ; Miaomiao Cao
Author_Institution :
Inst. of Electron., Grad. Univ. of Chinese Acad. of Sci., Beijing, China
Abstract :
A novel type of slow-wave structure, two-beam folded waveguide (FW) operating at terahertz (THz) band, is presented in this paper. The propagating characteristics of two-beam FW are investigated. Results of different methods including field matching and equivalent circuit are compared for the calculating dispersion of two-beam FW for THz radiation. The equivalent circuit model considers the circular bends and beam tunnels without electron beams. Field matching analysis considers both of the electron beams and the circular bends. Moreover, results from CST microwave studio simulations are compared with above different methods to find a sufficiently accurate prediction of dispersion of two-beam FW.
Keywords :
dispersion (wave); equivalent circuits; slow wave structures; waveguides; CST microwave studio simulations; beam tunnels; circular bends; dispersion characteristics; electron beams; equivalent circuit model; field matching; slow-wave structure; terahertz radiation; two-beam folded waveguide; Cutoff frequency; Dispersion; Electron beams; Equations; Equivalent circuits; Mathematical model; Dispersion characteristics; equivalent circuit; field matching; two-beam folded waveguide (FW);
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2013.2287197
