Abstract
A new variant for construction of a exciter of the Н01 mode of a circular metal waveguide using a smooth transition from a single-mode rectangular metal waveguide to a circular multimode waveguide is proposed and analyzed. Electrodynamic simulation and optimization of parameters of the transition are performed with the aid of the finite-element method and finite-difference method in the time domain. It is shown that the proposed device with a relatively small length provides low reflection loss and conversion to the other modes of the circular waveguide in a wider frequency band in comparison with alternative transducers.
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This work was supported by the State Task no. 0030-2019-006.
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Translated by A. Chikishev
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Kaloshin, V.A., Pham, V.C. Ultrawideband Exiter of the H 01 Mode of a Circular Waveguide. J. Commun. Technol. Electron. 66, 678–683 (2021). https://doi.org/10.1134/S1064226921060140
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DOI: https://doi.org/10.1134/S1064226921060140