FDTD characterization of planar circular resonators with applications to the design of small-sized filters

Author

Ma, Zhewang ; Kobayashi, Yoshio

Author_Institution

Dept. of Electr. & Electron. Eng., Saitama Univ., Urawa, Japan

fYear

1998

fDate

1998

Firstpage

974

Lastpage

977

Abstract

An FDTD method for accurate characterization of planar circular resonators is developed. A microstrip disk resonator and a stripline disk resonator are examined. The computed resonant frequencies of the microstrip resonator are in good agreement with results calculated by the boundary integral equation method. Variation of the resonant frequency and external Q value of the stripline disk resonator is investigated with different geometrical dimensions. Both the measured resonant-frequency and the external Q value of the stripline disk resonator agree well with the FDTD predictions

Keywords

Q-factor; UHF filters; finite difference time-domain analysis; microstrip filters; microstrip resonators; microwave filters; passive filters; resonator filters; strip line filters; strip line resonators; FDTD characterization; boundary integral equation method; external Q value; geometrical dimensions; microstrip disk resonator; planar circular resonators; resonant frequencies; small-sized filters; stripline disk resonator; Discrete Fourier transforms; Finite difference methods; Frequency measurement; Integral equations; Microstrip resonators; Q measurement; Resonant frequency; Resonator filters; Stripline; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology Proceedings, 1998. ICMMT '98. 1998 International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-4308-5

Type

conf

DOI

10.1109/ICMMT.1998.768452

Filename

768452