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.

fYear

2006

fDate

10-15 Sept. 2006

Firstpage

1350

Lastpage

1353

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 TE_11delta 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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. 36th European

Conference_Location

Manchester

Print_ISBN

2-9600551-6-0

Type

conf

DOI

10.1109/EUMC.2006.281267

Filename

4058083