Double Corrugated Waveguide for G-Band Traveling Wave Tubes

Author

Paoloni, C. ; Mineo, M.

Author_Institution

Dept. of Eng., Lancaster Univ., Lancaster, UK

Volume

61

Issue

12

fYear

2014

fDate

Dec. 2014

Firstpage

4259

Lastpage

4263

Abstract

A novel wide-band traveling wave tube (TWT) based on the double-corrugated waveguide (DCW) is proposed for operating in IEEE G-band (110-300 GHz). The DCW has been conceived for relaxing critical technological issues in terahertz vacuum tube realization, such as assembly, and to support a cylindrical electron beam. The study of the properties of the DCW in the forward wave regime demonstrates wide band performance suitable for TWTs fabrication at millimeter wave-terahertz frequencies. A traveling wave tube with 18-dB gain and up to 3.7 W output power over a bandwidth of about 30 GHz at 225 GHz as central frequency is demonstrated, assuming 13-kV beam voltage and 30-mA beam current.

Keywords

IEEE standards; electron beams; millimetre wave tubes; travelling wave tubes; vacuum tubes; waveguides; DCW; G-band traveling wave tubes; IEEE G-band; TWT; beam current; beam voltage; current 30 mA; cylindrical electron beam; double corrugated waveguide; frequency 110 GHz to 300 GHz; gain 18 dB; millimeter wave-terahertz frequencies; terahertz vacuum tube; voltage 13 kV; Corrugated surfaces; Dispersion; Electron tubes; Harmonic analysis; Impedance; Power generation; Wideband; Double corrugated waveguide (DCW); slow-wave structure (SWS); terahertz; traveling wave tube (TWT); traveling wave tube (TWT).;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2014.2364636

Filename

6951371