Title :
Millimeter-wave backward wave oscillators driven by pseudospark electron beams
Author :
Yin, He ; Bowes, D. ; He, Wei ; Cross, Adrian W. ; Ronald, Kevin ; Li, Di-Jie ; Chen, Xia ; Phelps, Alan D. R.
Author_Institution :
Dept. of Phys., Univ. of Strathclyde, Glasgow, UK
Abstract :
Millimeter-wave radiation has been successfully generated by a ~100 GHz BWO driven by a high brightness electron beam derived from a 14-gap pseudospark discharge. Pseudospark electron beams have been studied recently with their application to millimeter-wave and terahertz radiation generation. A BWO utilizing the interaction between an axial electron beam and a slow-wave structure was designed and modelled using the particle-in-cell code MAGIC before the experiment was constructed and successfully operated. Results from a higher frequency ~200 GHz BWO are also reported.
Keywords :
backward wave oscillators; electron beams; millimetre wave generation; sparks; terahertz wave generation; MAGIC particle-in-cell code; high brightness electron beam; millimeter wave backward wave oscillator; millimeter wave radiation generation; pseudospark discharge; pseudospark electron beams; terahertz radiation generation; Cathodes; Discharges (electric); Educational institutions; Electron beams; Periodic structures; Plasmas;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956259
