Ka波段二次谐波回旋速调管放大器的PIC模拟

梁显锋; 刘濮鲲

Ka波段二次谐波回旋速调管放大器的PIC模拟

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出版历程
- 收稿日期: 2004-01-05
- 修回日期: 2004-05-28
- 刊出日期: 2005-05-19

PIC Simulation of a Ka-Band Second Harmonic Gyroklystron Amplifier

摘要

摘要: 该文根据谐波回旋速调管放大器的注.波互作用特点,分析了放大器稳定工作的条件:对Ka波段二次谐波三腔回旋速调管放大器的注-波互作用进行了模拟计算,对放大器的注.波互作用电路参数进行了优化设计。模拟计算结果表明,在电子注电压为70kV,电子注电流15A,工作磁场为0.685T时,在35GHz频率放大器可以获得超过250kW的输出功率,大于21dB的增益,23%的效率和约为120MHz的带宽。计算结果为实际工程设计提供了有益的参考。
- 回旋速调管放大器; 电子回旋脉塞; 二次谐波; PIC模拟
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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参考文献(1)

Antakov I I, et al.. 35-GHz radar gyroklystrons. In Proc. 18th Int. Conf. Infrared Millimeter Waves, Colchester, UK, 1993:338 - 339.[2]Calame J P, Garven M, Choi J J, et al.. Experimental studies of bandwidth and power production in a three-cavity 35GHzgyroklystron amplifier[J].Phys. Plasmas.1999, 6(1):285-[3]Danly B G, Blank M, Calame J P, et al.. Demonstration of a 10kW average power 94GHz gyroklystron amplifier[J].Phys.Plasmas.1999, 6(12):4405-[4]Danly B G. Gyro-amplifiers for high power millimeter wave radar. Third IEEE International Vacuum Electronics Conf.,California, USA, April 23-25, 2002:361 - 362.[5]Zasypkin E V, Moiseev M A, Gachev I G, et al.. Study of high-power Ka-band second-harmonic gyroklystron amplifier[J].IEEE Trans. on Plasma Sci.1996, 24(3):666-[6]Gachev I G, Antakov I I, Lygin V K, et al. A Ka-band second harmonic gyroklystron with permanent magnet. Fifth International workshop Strong Microwaves in plasmas, Russia,Moscow-N. Novgorod-Moscow, 2002:901 - 910.[7]Nguyen K T, Levush B, Antonsen T M, et al.. Modeling of gyroklystrons with MAGY[J].IEEE Trans. on Plasma Sci.2000,28(3):867-[8]Chu K R. Theory of electron cyclotron maser interaction in a cavity at the harmonic frequencies[J].Phys. Fluids.1978, 21(12):2354-[9]Nusinovich G S, Dumbrajs O. Two-harmonic prebunching of electrons in multicavity gyrodevices[J].Phys. Plasmas.1995, 2(2):568-[10]Calame J P, Abe D K. Applications of advanced materials technologies to vacuum electronics devices. Proc. IEEE. 1999,87(5): 840 - 864.[11]McNally J D, McDermott D B, Luhmann N C, Jr.. Thirdharmonic TE411 gyroklystron amplifier[J].IEEE Trans. on Plasma Sci.1998, 26(3):496-[12]Nusinovich G S, Sinitsyn O V, Rodgers J, Granatstein V L. Comparison of two gyroklystron concepts: frequency multiplication versus operation at a given cyclotron harmonic. Proc. Third IEEE Int. Vacuum Electronics Conf., California, 2002:87 - 88.

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