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A W-band four-cavity gyroklystron amplifier
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Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics,Chinese Academy of Sciences,P. O. Box 2652,Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics,Chinese Academy of Sciences,P. O. Box 2652,Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics,Chinese Academy of Sciences,P. O. Box 2652,Shi-Chang Zhang,Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics,Chinese Academy of Sciences,P. O. Box 2652,Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics,Chinese Academy of Sciences,P. O. Box 2652,Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics,Chinese Academy of Sciences,P. O. Box 2652,Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics,Chinese Academy of Sciences,P. O. Box 2652,Shao-hui Shi

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    Abstract:

    The design of a W-band four-cavity gyroklystron amplifier is presented. The device operates in the fundamental harmonic TE01 circular electric mode. The 70 kV, 6 A beam is produced by a double anode magnetron injection gun (MIG) with an average perpendicular-to-parallel velocity ratio of 1.5 and a parallel velocity spread of less than 4%. Particle-in-cell (PIC) simulations have been performed to predict general RF performance for various parameters. The simulated results show that the designed gyroklystron amplifier can produce about 35 dB gain, 800 MHz bandwidth and 100 kW peak output power with power conversion efficiency of 23.8% for a beam with 4% axial velocity spread.

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XU Shou-Xi, LIU Pu-Kun, XUE Qian-Zhong, ZHANG Shi-Chang, GENG Zhi-Hui, DU Chao-Hai, SU Yi-Nong, LIU Gao-Feng, SHI Shao-Hui. A W-band four-cavity gyroklystron amplifier[J]. Journal of Infrared and Millimeter Waves,2013,32(3):205~209

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History
  • Received:March 14,2012
  • Revised:June 15,2012
  • Adopted:June 18,2012
  • Online: June 14,2013
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