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A High-Gain, 28GHz, 200kW Gyroklystron Amplifier

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Abstract

A design study of a high efficiency/gain gyroklystron amplifier is performed to demonstrate amplified radiation power of 200kW operating at 28GHz. A key design feature of the present gyroklystron amplifier is that the amplifier is designed to be high gain so that it can be saturated by a low power solid state power amplifier. A non-linear, time-dependent, large signal numerical code is used to predict tube performance. Simulations predict that a stable amplifier radiation power of 214kW is produced with a saturated gain of 54dB, an electronic efficiency of 37%, and a frequency bandwidth of 0.3% from a five-cavity gyroklystron amplifier. The amplifier gain is found to be very sensitive to a beam velocity spread.

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  1. High Power Microwave Engineering Laboratory, Kwangwoon University, Department of Radio Engineering, Seoul, Korea, 139-701

    J. J. Choi

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  1. J. J. Choi
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Choi, J.J. A High-Gain, 28GHz, 200kW Gyroklystron Amplifier. International Journal of Infrared and Millimeter Waves 19, 1681–1691 (1998). https://doi.org/10.1023/A:1021719311152

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  • DOI: https://doi.org/10.1023/A:1021719311152

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