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Physics of Plasmas / Volume 17 / Issue 11 / LETTERS

Phys. Plasmas 17, 110703 (2010); http://dx.doi.org/10.1063/1.3505825 (3 pages)

Generation of 3 GW microwave pulses in X-band from a combination of a relativistic backward-wave oscillator and a helical-waveguide compressor

V. L. Bratman1, G. G. Denisov1, N. G. Kolganov1, S. V. Mishakin1, S. V. Samsonov1, A. W. Cross2, W. He2, L. Zhang2, M. McStravick2, C. G. Whyte2, A. R. Young2, K. Ronald2, C. W. Robertson2, and A. D. R. Phelps2

1Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia
2Department of Physics, Scottish Universities Physics Alliance, University of Strathclyde, Glasgow, Scotland G4 0NG, United Kingdom

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(Received 20 September 2010; accepted 5 October 2010; published online 2 November 2010)

The phenomenon of passive compression of frequency-modulated (FM) pulses in a dispersive media (DM) was used to increase the peak microwave power up to the multigigawatt level. A helically corrugated waveguide was used as the DM, while a relativistic X-band backward-wave oscillator (RBWO) with a descending-during-the-pulse accelerating voltage served as a source of FM pulses. Compression of pulses down to a halfwidth of 2.2 ns accompanied by a 4.5-fold power increase up to a value of about 3.2 GW has been demonstrated.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

backward wave oscillators, compressors, dispersive media, helical waveguides, microwave generation, pulse compression

PACS

  • 84.40.Fe

    Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.)

  • 84.40.Az

    Waveguides, transmission lines, striplines

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3505825

PUBLICATION DATA

ISSN

1070-664X (print)  
1089-7674 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    W. M. Manheimer and B. H. Ripin, Phys. Fluids 29, 2283 (1986)PFLDAS000029000007002283000001.

    S. V. Samsonov, A. D. R. Phelps, V. L. Bratman, G. Burt, G. G. Denisov, A. W. Cross, K. Ronald, W. He, and H. Yin, Phys. Rev. Lett. 92, 118301 (2004).

    R. H. Lehmberg and J. M. McMahon, Appl. Phys. Lett. 28, 204 (1976)APPLAB000028000004000204000001.

    B. Levush, T. Antonsen, A. Bromborsky, W. R. Lou, and Y. Carmel, Phys. Fluids B 4, 2293 (1992)PFBPEI000004000007002293000001.


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