Title :
Improvement of Characteristics of Dielectric Circular Resonator and Its Filter Application
Author :
Munir, Achmad ; Uemura, Takeshi ; Kubo, Hiroshi
Author_Institution :
Fac. of Eng., Yamaguchi Univ.
Abstract :
The improvements of a circular waveguide-type resonator for gaining better characteristics, i.e. higher Q value and bigger separation of higher-modes, are investigated. The resonator which is fabricated by lamination of metal strips in sectorial segmentations etched on a teflon board is intended to excite a TE11delta mode selectively. The resonant frequency and unloaded Q of dielectric circular resonators in which the gap between metal strips and the number of metal strip are changed are analyzed by use of an HFSSreg simulation, and then the results are compared with the experimental ones. To demonstrate the feasibility of improvement, a 2-stage bandpass filter encapsulated in a metal circular waveguide is realized
Keywords :
band-pass filters; circular waveguides; dielectric resonator filters; 2-stage bandpass filter; HFSS simulation; circular waveguide-type resonator; dielectric circular resonator; filter application; metal circular waveguide; resonant frequency; sectorial segmentations; Anisotropic magnetoresistance; Band pass filters; Composite materials; Dielectric materials; Electromagnetic fields; Electromagnetic waveguides; Permittivity; Resonant frequency; Resonator filters; Strips; Bandpass filter; dielectric circular resonator; resonant frequency; spurious property; unloaded Q;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281267
