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Whispering-gallery modes in a barrel-shaped dielectric resonator

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Abstract

We experimentally study a new type of resonator, namely, a barrel-shaped dielectric resonator with whispering-gallery modes which is formed by the cutting dielectric hemisphere. Compared with a hemispherical dielectric resonator, the E type oscillation spectrum of such a resonator is rarefied with respect to the azimuthal index. Comparative analysis of the electromagnetic characteristics of the barrel-shaped dielectric resonator and half-disk dielectric resonators shows that the radiation losses of the mode energy from the spherical surface are smaller than those from the cylindrical surface. This fact stimulates the high values of the internal Q-factor of modes of the barrel-shaped dielectric resonator.

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Authors and Affiliations

  1. A. Ya. Usikov Institute of Radiophysics and Electronics of the National Academy of Sciences of Ukraine, Kharkov, Ukraine

    Y. V. Bludov, A. J. Kirichenko, A. E. Kogut, V. V. Kutuzov & V. A. Solodovnik

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  1. Y. V. Bludov
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  2. A. J. Kirichenko
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  3. A. E. Kogut
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  4. V. V. Kutuzov
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  5. V. A. Solodovnik
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 48, No. 12, pp. 1041–1048, December 2005.

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Bludov, Y.V., Kirichenko, A.J., Kogut, A.E. et al. Whispering-gallery modes in a barrel-shaped dielectric resonator. Radiophys Quantum Electron 48, 927–933 (2005). https://doi.org/10.1007/s11141-006-0026-0

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  • DOI: https://doi.org/10.1007/s11141-006-0026-0

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