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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Печать: 0040-2508
ISSN Онлайн: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v66.i7.10
pages 577-586

Cone-Shaped Quasioptical Dielectric Resonators

A. A. Barannik
O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine
S. A. Bunyaev
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085, Ukraine
Nikolay T. Cherpak
O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine

Краткое описание

The feasibility of whispering gallery modes has been shown experimentally for dielectric resonators in the form of a truncated cone, either with or without a conducting end-face wall. The effect persists for slope angles of the cone generatrix up to 35°. The dependences of the eigenfrequency, Q-factor and electric field distribution on the slope angle of the cone generatrix have been obtained for the 8-mm wavelength range. A comparative analysis of the eigenfrequencies and Q-factors has been performed for various kinds of cone-shaped cavities, as well as for a hemispherical resonator. It has been shown that the Q-factor and the conductor coupling factors of the cone-shaped and the hemispherical resonator become commensurable for the generatrix slope angle of 6 to 8°.


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