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A Signal Input Selective Device for a High-Current Relativistic Cherenkov Amplifier

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Abstract

Selective unidirectional excitation of a cylindrical waveguide through the lateral wall is investigated as applied to the signal input into a millimeter high-current relativistic Cherenkov amplifier. The ratio of the parameters of the input device has been found providing the maximum transformation of the fundamental mode of a rectangular waveguide into the unidirectional lower axisymmetric mode of a cylindrical waveguide. In the absence of Ohmic losses, the conversion efficiency reaches 97.5%. An input device adapted to the design of a 35.5-GHz amplifier is implemented with an efficiency of 75%.

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Funding

The work was supported by the Ministry of Science and Higher Education of the Russian Federation (project no. 0035-2019-0001) and Russian Foundation for Basic Research (project no. 18-08-00926a).

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Authors and Affiliations

  1. Institute of Applied Physics, Federal Research Center, Russian Academy of Sciences, 603950, Nizhny Novgorod, Russia

    Yu. Yu. Danilov, E. B. Abubakirov & A. P. Konyushkov

Authors
  1. Yu. Yu. Danilov
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  2. E. B. Abubakirov
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  3. A. P. Konyushkov
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Correspondence to Yu. Yu. Danilov.

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The authors declare that they have no conflict of interest.

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Translated by G. Dedkov

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Danilov, Y.Y., Abubakirov, E.B. & Konyushkov, A.P. A Signal Input Selective Device for a High-Current Relativistic Cherenkov Amplifier. Tech. Phys. Lett. 46, 935–937 (2020). https://doi.org/10.1134/S1063785020090175

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  • DOI: https://doi.org/10.1134/S1063785020090175

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