Telecommunications and Radio Engineering

ISSN for PRINT: 0040-2508

For Online Access

Best Paper Award Selection - Editorial Board Site

2003, Volume60

Issue 1&2

159 pages

DOI: 10.1615/TelecomRadEng.v60.i12

Issue price - $394.00

Z. Ye. Eremenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085, Ukraine

Ye. M. Ganapolskii
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085, Ukraine

New method is proposed for measuring microwave permittivity of strongly absorbing liquids in small volume. The method is based on use of hemispherical resonator with small spherical cavity filled with liquid to be measured. Characteristic equation for electromagnetic oscillations in this resonator is obtained and analyzed. Optimal dimensions of measuring cell and working mode of oscillations are found. It is shown that effect of displacement of electromagnetic field from cavity arises in such a resonator whose cavity is filled with liquid having large values of real and imaginary parts of permittivity. Method is experimentally realized in 3 cm wave range. Theoretically predicted field displacement effect is revealed. Algorithm is found of determining of complex permittivity of liquid from measured values of Q-factor and resonant frequency shift.

DOI: 10.1615/TelecomRadEng.v60.i12.70 Download article, 14 pages

Article price - $35.00

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