Radiation Q-factor of different-shape dielectric resonators with tested conductors and liquid dielectrics

被引：0
|
作者：
Barannik A.A. [1 ]
Vitusevich S.A. [2 ]
Protsenko I.A. [1 ]
Kharchenko M.S. [1 ]
Cherpak N.T. [1 ]
机构：
[1] A.Ya. Usikov Institute for Radiophysics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkiv
[2] Peter Grünberg Institute Forschungszentrum Juelich, Juelich
来源：
Protsenko, I.A. (ira_protsenko@bk.ru) | 1600年 / Begell House Inc.卷 / 75期
关键词：
Dielectric resonator; Permittivity of liquids; Radiation Q-factor; Superconductor;
D O I：
10.1615/TelecomRadEng.v75.i3.50
中图分类号：
学科分类号：
摘要：
Whispering gallery mode dielectric resonators are used as measuring cells to determine the electrophysical characteristics of materials. It is necessary to choose the resonator structure possessing acceptable radiation Q-factor values. Calculation of the radiation Q-factor by analytical methods is possible for simple symmetric structures only. Numerical investigations of different-shape leucosapphire resonators with limiting conducting end plates and without them are carried out in the Ka-band. The disk resonators with one conducting end plate are studied experimentally as well. The effect of tested material sample introduction in the electromagnetic field on the resonator field distribution, frequency and radiation Q-factor is shown. The application opportunity of measurement cells based on such resonators for determination of the (super)conductor microwave impedance and permittivity of dielectric liquids is analyzed. The results obtained can be used for choosing the resonator measurement cell with a negligible radiation loss. ©2016 by Begell House, Inc.
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页码：235 / 245
页数：10
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