THz sheet beam backward wave tube with double corrugated waveguide slow wave structure

Author

Zhanliang Wang ; Xiong Xu ; Yubin Gong ; Yanyu Wei ; Zhaoyun Duan ; Jinjun Feng

Author_Institution

State Key Lab. of Complex Electromagn. Environ. Effects of Electron. & Inf. Syst., Luoyang, China

fYear

2015

fDate

27-29 April 2015

Firstpage

1

Lastpage

2

Abstract

The all-mental double corrugated waveguide slow wave structure has potential to produce high power THz radiation. This paper presents a terahertz backward wave tube with double corrugated waveguide SWS in consideration of the surface loss and the cathode´s emittance. To reduce the size and weight, a wedge attenuator is assembled at the end of the backward wave tube. The dispersion characteristics and the interaction impedance of the slow wave structure are studied in detail and optimized. The beam-wave interaction is simulated with CST Particle Studio. The results show that this backward wave tube can produce over 0.16-W output power at the frequency of 0.36THz. The THz sheet beam backward wave tube will be fabricated and tested in the near future.

Keywords

backward wave tubes; slow wave structures; terahertz waves; waveguides; CST particle studio; THz sheet beam backward wave tube; cathode emittance; double corrugated waveguide SWS; double corrugated waveguide slow wave structure; frequency 0.36 THz; high power THz radiation; power 0.16 W; terahertz backward wave tube; Electron tubes; Electrooptical waveguides; backward wave tube; double corrugated waveguide; sheet beam;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2015 IEEE International

Conference_Location

Beijing

Print_ISBN

978-1-4799-7109-1

Type

conf

DOI

10.1109/IVEC.2015.7224049

Filename

7224049