Accurate microwave resonant method for complex permittivity measurements of liquids [biological]

Author

Yu, Kapilevich B. ; Ogourtsov, S.G. ; Belenky, V.G. ; Maslenikov, A.B. ; Omar, Abbas S.

Author_Institution

Dept. of Appl. Electromagn., Siberia State Univ. of Telecommun. & Inf., Novosibirsk, Russia

Volume

48

Issue

11

fYear

2000

fDate

11/1/2000 12:00:00 AM

Firstpage

2159

Lastpage

2164

Abstract

A method available for accurate measurements of lossy liquids is presented, tested on standard materials, and compared with the perturbation technique commonly adopted in cavity measurements. The method is based on numerically solving a complex characteristic equation. Realization of the method was done using an E₀₁₀ cylindrical cavity. Results show that measurement errors may be decreased with application of the method presented. The method excludes uncertainties in complex permittivity determination when material has losses and high permittivity.

Keywords

biomedical measurement; liquids; measurement errors; microwave measurement; permittivity measurement; resonance; E₀₁₀ cylindrical cavity; accurate microwave resonant method; cavity measurements; complex characteristic equation; complex permittivity determination uncertainties; complex permittivity measurements; lossy liquids; perturbation technique; standard materials; Biological materials; Equations; Liquids; Loss measurement; Materials testing; Measurement standards; Microwave theory and techniques; Permittivity measurement; Perturbation methods; Resonance;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.884209

Filename

884209