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电信和无线电工程
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

卷:
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电信和无线电工程

DOI: 10.1615/TelecomRadEng.v55.i12.80
10 pages

Application of Quasi-Optical Dielectric Cavity Resonators for Measuring Microwave Characteristics of Dielectric and Conducting Materials

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
Yu. V. Prokopenko
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine
Yu. F. Filippov
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

ABSTRACT

Approaches are developed to studying microwave characteristics of dielectric and conducting materials with the use of quasi-optical dielectric resonators whose axis coincides with the anisotropy axis of the dielectric. The technique is based on the solving a characteristic set of equations that involve measured values of the resonator's eigen-frequencies, and identifying the eigenmodes observed in the resonator, as well as using measured magnitudes of the resonator Q-factor in the power relations derived. Examples are presented of implementating the approaches to determine components of the tensorial dielectric constant, [εij], and the loss tangent, tan δ, of dielectric materials, and also to estimate the surface resistance, Rs, of conducting end plates of the cylindrical resonator. Spectral characteristics and power relations of the higher order HEnsm modes are investigated for the radial in dices s = 1 and 2. The method suggested to analyze quasioptical resonators are of interest for studying dielectric materials and measuring the surface resistances, Rs, of conductors and superconductors at millimeter wavelengths.


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