LIAO Mingliang, WEI Yanyu, HE Jun, GONG Yubing, WANG Wenxiang, Gun-Sik Park. Large-Signal Simulations of a Novel FoldedWaveguide Traveling-Wave Tube[J]. Chinese Journal of Electronics, 2010, 19(2): 386-388.
Citation: LIAO Mingliang, WEI Yanyu, HE Jun, GONG Yubing, WANG Wenxiang, Gun-Sik Park. Large-Signal Simulations of a Novel FoldedWaveguide Traveling-Wave Tube[J]. Chinese Journal of Electronics, 2010, 19(2): 386-388.

Large-Signal Simulations of a Novel FoldedWaveguide Traveling-Wave Tube

  • Received Date: 2009-07-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-04-05
  • A novel Folded waveguide (FW) ampli¯er
    for Traveling-wave tubes (TWT) was investigated. It is
    formed by adding rectangular grooves periodically to the
    bends of a normal FW. In order to test its performance, a
    three-dimensional Particle-in-cell (PIC) code MAGIC was
    used to simulate the large-signal beam-wave interaction. It
    proves to be a potential device for producing more than two
    times higher Continuous wave (CW) power with a much
    shorter circuit compared to a normal FW. The band per-
    formance is also good in above 2GHz. Furthermore, the
    novel FW e®ectively improves the problem that gain of a
    normal FW decreases at higher working frequencies due
    to diminishing of interaction impedance. This novel FW
    therefore promises a high power and miniaturized circuit
    for millimeter wave TWT.
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