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| PIC Simulation of a Ka-Band Second Harmonic Gyroklystron Amplifier |
| Liang Xian-feng;Liu Pu-kun |
| Institute of Electronics Chinese Academy of Sciences Beijing 100080 China |
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Abstract The conditions of the steady operation of the amplifiers are analyzed based on the characteristics of beam-wave interactions of harmonic gyroklystron amplifiers in this paper. The optimized design parameters of the circuit of the beam-wave interactions are obtained by simulation and calculation of the beam-wave interactions of a Ka-band, second harmonic, three cavities gyroklystron amplifier. The results show that this gyroklystron amplifier can produce an output peak power of over 250kW with more than 21dB gain and 23% maximum efficiency at 35GHz with a 70kV, 15A electron beam, and a 3dB bandwidth of about 120 MHz. This work is beneficial to the actual engineering design of the Ka-band second harmonic gyroklystron amplifier.
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Received: 05 January 2004
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2005, Vol. 27 
