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Simulation and design of a W-band second-harmonic gyrotron traveling wave amplifier

Liu Pu-Kun Lai Guo-Jun

Simulation and design of a W-band second-harmonic gyrotron traveling wave amplifier

Liu Pu-Kun, Lai Guo-Jun
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  • Abstract views:  3567
  • PDF Downloads:  948
  • Cited By: 0
Publishing process
  • Received Date:  03 April 2006
  • Accepted Date:  13 April 2007
  • Published Online:  05 April 2007

Simulation and design of a W-band second-harmonic gyrotron traveling wave amplifier

  • 1. (1)中国科学院电子学研究所,北京 100080; (2)中国科学院电子学研究所,北京 100081;中国人民解放军陆军航空兵学院机载设备系,北京 101123

Abstract: Gyrotron traveling wave amplifier is a very important high power millimeter wave source for radar applications. Second-harmonic operation is of special significance due to its low magnetic field operation. By using an interaction circuit with two-stage distributed-loss, the absolute instability and the gyrotron backward wave oscillation can be suppressed. Nonlinear analysis is used to study the stability and large signal performance of the amplifier. Particle in cell simulation of W-band TE02 gyrotron traveling wave amplifier are also performed. The results show that this amplifier can generate 300 kW at 94 GHz with 15% efficiency and 5% bandwidth in case of a 100 kV, 20 A electron beam input.

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