W-band extended interaction oscillations using post-accelerated pseudospark-sourced electron beams

Cross, A. W. and Yin, H. and He, W. and Zhang, L. and Ronald, K. and Phelps, A. D. R. and Chen, X. and Shu, G. and Yin, Y. and Zhao, J. (2017) W-band extended interaction oscillations using post-accelerated pseudospark-sourced electron beams. In: 2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017. IEEE, Piscataway, NJ. ISBN 9781538627204

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    Abstract

    This article presents the investigation of a millimetre-wave extended interaction oscillation using both pencil and sheet-shaped pseudospark (PS)-sourced electron beams. Two W-band (75-110 GHz) pencil and sheet beam extended interaction oscillators (EIO) were designed and constructed respectively. The PS-sourced pencil beam EIO structure was firstly driven by a four-gap PS discharge operating at 30.5 kV and the output power of 38 W was achieved. The same EIO structure was then driven by an improved PS-sourced beam produced by combining a single-gap PS structure with an integrated post-acceleration section which generated an output power of 200W. The preliminary PS-sourced sheet beam EIO structure will also be presented.