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Cylindrical Cavity with Distributed Longitudinal Corrugations for Second-Harmonic Gyrotrons

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Abstract

Metallic cavity with distributed longitudinal corrugations is proposed and studied for the use in a subterahertz second-harmonic gyrotron. The corrugated conducting walls are treated as a homogeneous surface with effective (averaged) anisotropic impedance. The theoretical study incorporates both single-mode and coupled-mode approaches. It is shown that the distributed longitudinal corrugations provide several-fold increase in the Q-value of the operating mode with respect to that of the fundamental competing mode at a reasonable level of ohmic losses and mode conversion in the gyrotron cavity.

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Authors and Affiliations

  1. National Science Center “Kharkiv Institute of Physics and Technology” of National Academy of Science of Ukraine, 1 Akademicheskaya St., Kharkiv, 61008, Ukraine

    Vitalii I. Shcherbinin & Viktor I. Tkachenko

  2. V.N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine

    Viktor I. Tkachenko

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  1. Vitalii I. Shcherbinin
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Correspondence to Vitalii I. Shcherbinin.

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Shcherbinin, V.I., Tkachenko, V.I. Cylindrical Cavity with Distributed Longitudinal Corrugations for Second-Harmonic Gyrotrons. J Infrared Milli Terahz Waves 38, 838–852 (2017). https://doi.org/10.1007/s10762-017-0386-x

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