Influence of the coupling between a cavity and a transmission line on the measurement of complex permittivity by the resonant cavity perturbation method

Author

Ikeda, Masaaki ; Nishida, Kazuaki ; Shimasaki, Hitoshi ; Akiyama, Masahiro

Author_Institution

Dept. of Electron., Kyoto Inst. of Technol., Kyoto

fYear

2008

fDate

16-20 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

The real part of permittivity can be evaluated at 2.247 GHz by the resonant cavity perturbation method in strong coupling state up to -3.7 dB of coupling that has not been investigated. The imaginary part of the permittivity can be evaluated reliably up to -14 dB of coupling. In the resonant cavity perturbation method, the influence of the coupling on blank and sample loaded cavity are compensated up to -14 dB of |S21|. The possibility of measuring high loss materials was shown by the measurement of Au coated ceramic rod.

Keywords

cavity resonators; transmission lines; coated ceramic rod; complex permittivity measurement; resonant cavity perturbation method; sample loaded cavity; transmission line; Cavity perturbation methods; Ceramics; Couplings; Frequency measurement; Loss measurement; Permittivity measurement; Q factor; Resonance; Resonant frequency; Transmission line measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. APMC 2008. Asia-Pacific

Conference_Location

Macau

Print_ISBN

978-1-4244-2641-6

Electronic_ISBN

978-1-4244-2642-3

Type

conf

DOI

10.1109/APMC.2008.4958134

Filename

4958134