Millimeter-wave backward wave oscillators driven by pseudospark electron beams

Yin, H. and Bowes, D. and He, W. and Cross, A. W. and Ronald, K. and Li, D. and Chen, X. and Phelps, A. D. R.; (2014) Millimeter-wave backward wave oscillators driven by pseudospark electron beams. In: 2014 39th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, USA. ISBN 9781479938773 (https://doi.org/10.1109/IRMMW-THz.2014.6956259)

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Abstract

Millimeter-wave radiation has been successfully generated by a ∼100GHz 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 ∼200GHz BWO are also reported.

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