Design and Realization Aspects of 1-THz Cascade Backward Wave Amplifier Based on Double Corrugated Waveguide

Author

Paoloni, Claudio ; Di Carlo, A. ; Bouamrane, F. ; Bouvet, T. ; Durand, Alain J. ; Kotiranta, Mikko ; Krozer, V. ; Megtert, S. ; Mineo, Mauro ; Zhurbenko, Vitaliy

Author_Institution

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

Volume

60

Issue

3

fYear

2013

fDate

Mar-13

Firstpage

1236

Lastpage

1243

Abstract

The design and fabrication challenges in the first ever attempt to realize a 1-THz vacuum tube amplifier are described. Implementation of innovative solutions including a slow-wave structure in the form of a double corrugated waveguide, lateral tapered input and output couplers, deep X-ray LIGA fabrication process, and a cascade architecture of the backward wave amplifier are discussed. New knowledge in the field of terahertz vacuum devices brought by intensive simulations and development of advanced fabrication and assembly processes of the micro-structures is highlighted.

Keywords

LIGA; backward wave tubes; slow wave structures; submillimetre wave couplers; terahertz wave devices; waveguides; advanced microstructure assembly process; advanced microstructure fabrication process; cascade backward wave amplifier; deep X-ray LIGA fabrication process; double-corrugated waveguide; frequency 1 THz; intensive simulations; lateral tapered input-output couplers; slow-wave structure; terahertz vacuum devices; vacuum tube amplifier; Copper; Couplers; Electron tubes; Fabrication; Optical waveguides; Rough surfaces; Surface roughness; Cascade backward wave amplifier; double corrugated waveguide; optically driven terahertz amplifier (OPTHER); terahertz;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2013.2240686

Filename

6451233