Narrow corrugation rectangular waveguide for terahertz TWTs

Mineo, Mauro and Paoloni, C. (2010) Narrow corrugation rectangular waveguide for terahertz TWTs. Electronics Letters, 46 (13). pp. 927-928. ISSN 0013-5194

Abstract

Terahertz (THz) vacuum travelling wave tubes require slow-wave structures (SWSs) realisable by microfabrication processes, which assure an effective interaction with the electron beam. A corrugated rectangular waveguide with the corrugation narrower than the width of the waveguide is proposed as a slow-wave structure for THz travelling wave tubes (TWTs). A complete cold parameter analysis by a 3D electromagnetic simulator is presented, and the validity of the structure is demonstrated.