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

Volume

60

Issue

12

fYear

2013

fDate

Dec. 2013

Firstpage

4252

Lastpage

4257

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);

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2013.2287197

Filename

6651833