Title :
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
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;
Conference_Titel :
Microwave and Millimeter Wave Technology Proceedings, 1998. ICMMT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4308-5
DOI :
10.1109/ICMMT.1998.768452
