Dispersion Characteristics of a Grating-waveguide for Terahertz Radiation

Author

Liu, Wenxin ; Yang, Ziqiang ; Liang, Zheng

Author_Institution

Univ. of Electron. Sci. & Technol. of China, Chengdu

fYear

2007

fDate

16-17 Aug. 2007

Firstpage

404

Lastpage

407

Abstract

The linear dispersion equation of a grating-waveguide driven by a two-mixed electron beam for an application in Terahertz (THz) radiation is derived with the help of fluid theory, and the interaction of beam-wave is analyzed by the numerical solutions. We study the growth rate of fundamental mode and the second operation mode, and find that the growth rate is considerably enhanced due to the presence of two-stream instability. The peak growth rate versus voltage ratio is investigated, and the result shows that it can be enhanced by the proper choice of voltage ratio.

Keywords

dispersion (wave); electron beams; submillimetre waves; waveguides; beam-wave interaction; dispersion characteristics linear dispersion equation; grating-waveguide; peak growth rate; terahertz radiation; two-mixed electron beam; Antennas and propagation; Electromagnetic compatibility; Electron beams; Equations; Frequency; Gratings; Microwave antennas; Microwave propagation; Microwave technology; Voltage; Dispersion equation; Growth rate; THz radiation; Two-admixed beam; Voltage ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-1045-3

Electronic_ISBN

978-1-4244-1045-3

Type

conf

DOI

10.1109/MAPE.2007.4393635

Filename

4393635