The analysis of a balanced-type circular disk resonator excited by coaxial cable lines to measure the complex permittivity

Author

Kawabata, Hirokazu ; Kobayashi, Yoshio

Author_Institution

Fac. of Eng., Saitama Univ., Japan

Volume

3

fYear

2001

fDate

2001

Firstpage

1322

Abstract

A new structure of a balanced-type circular disk resonator is proposed to determine the relative permittivity ε_r and the loss tangent tanδ of dielectric plate samples from the measured values of f₀ and the unloaded Q of the TM₀₁₀ mode. A rigorous analysis based on the Ritz-Galerkin method is preformed to obtain the resonant frequency f₀ and the Q factors of the TM_0m0 mode. The numerical results are presented to illustrate the effects of the coupling holes, through which the resonator is excited and detected, on f₀ and the Q values. The analysis method is used to calculate the values of the ε_r and tanδ of PTFE plate samples from the measured values

Keywords

Galerkin method; Q-factor; coaxial cables; dielectric loss measurement; microwave measurement; permittivity measurement; resonators; PTFE; Q-factor; Ritz-Galerkin method; TM mode; balanced-type circular disk resonator; coaxial cable line; complex permittivity; dielectric plate; loss tangent; microwave measurement; resonant frequency; Coaxial cables; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Integral equations; Loss measurement; Permittivity measurement; Q measurement; Region 2; Resonant frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific

Conference_Location

Taipei

Print_ISBN

0-7803-7138-0

Type

conf

DOI

10.1109/APMC.2001.985379

Filename

985379