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System Development and Performance Testing of a W-Band Gyrotron

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Abstract

A high-power W-band gyrotron has been designed and performance tested in Korea, with an output power in the range of tens of kilowatts. The gyrotron consists of a diode-type electron gun operating at 40 kV, a TE6,2 mode interaction cavity, and a mode converter for producing a highly Gaussian output mode beam. Presented here are the detailed component design procedure and the experimental results of the gyrotron’s performance evaluation. A maximum power of 62 kW was achieved with an efficiency of 22 %, and a highly Gaussian output beam was observed. The gyrotron’s output beam is analyzed, and its transmission through an oversized waveguide is discussed. This gyrotron is the first gyrotron developed in Korea with high power greater than 10 kW and high frequency greater than 90 GHz.

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Acknowledgments

This work was partially supported by the National Research & Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2014M1A7A1A03029874) and (NRF-2013R1A1A2061062).

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Authors and Affiliations

  1. School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea

    Sung Gug Kim, Ashwini Sawant, Ingeun Lee & EunMi Choi

  2. Physics Department, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea

    Dongsung Kim, MunSeok Choe & EunMi Choi

  3. LIG Nex1, Pankyo, Republic of Korea

    Jong-Hyo Won & Jungho Kim

  4. Agency for Defense Development (ADD), Daejeon, 305-152, Republic of Korea

    Joonho So & Won Jang

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  1. Sung Gug Kim
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  2. Ashwini Sawant
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  10. EunMi Choi
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Correspondence to EunMi Choi.

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Kim, S.G., Sawant, A., Lee, I. et al. System Development and Performance Testing of a W-Band Gyrotron. J Infrared Milli Terahz Waves 37, 209–229 (2016). https://doi.org/10.1007/s10762-015-0221-1

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  • DOI: https://doi.org/10.1007/s10762-015-0221-1

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