Study on measurement of dielectric constant of partially filled material using modified cavity perturbation technique

Author

Li, Zheng ; Li, En

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

19-20 April 2012

Firstpage

1

Lastpage

3

Abstract

The cavity perturbation method has been used to measure the permittivity of various dielectric materials. The traditional technique requires sample must be totally inserted in the resonant cavity. When a small sample is partially filled into the cavity, accurate measurement result is very difficult. In this paper, the measurement accuracy of dielectric constant was improved obviously compared to the present approach by introducing a modified factor. The error is reduced to 7% when the volume of the sample exceeds about 50%.

Keywords

cavity resonators; dielectric materials; microwave measurement; permittivity measurement; perturbation techniques; dielectric constant measurement; dielectric materials; measurement accuracy; modified cavity perturbation technique; partially filled material; resonant cavity; Cavity resonators; Dielectric constant; Permittivity; Permittivity measurement; Perturbation methods; Resonant frequency; Amendment factor; Cavity Perturbation Method; Partially Filled; Permittivity Measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2012 International Workshop on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-1893-8

Type

conf

DOI

10.1109/MMWCST.2012.6238166

Filename

6238166