TY  - JOUR
AU  - Barannik, A. A.
AU  - Vitusevich, Svetlana
AU  - Protsenko, I. А.
AU  - Kharchenko, М. S.
AU  - Cherpak, Nikolay T.
TI  - RADIATION Q-FACTOR OF DIFFERENTSHAPE DIELECTRIC RESONATORS WITH TESTED CONDUCTORS AND LIQUID DIELECTRICSPGI-8
JO  - Telecommunications and radio engineering
VL  - 75
IS  - 3
SN  - 0040-2508
CY  - New York, NY
PB  - Scripta Technica, Inc.
M1  - FZJ-2017-00706
SP  - 235 - 245
PY  - 2016
AB  - 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. 
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1615/TelecomRadEng.v75.i3.50
UR  - https://juser.fz-juelich.de/record/826481
ER  -