Title :
Dual-band filter using half wavelength resonators and dual-mode resonator
Author :
Kim, Kyoungkeun ; Pyo, Hyun-seong ; An, Jae-min ; Lim, Yeongseog
Author_Institution :
Dept. of Electron. & Comput. Eng., Chonnam Nat. Univ., Gwang-ju, South Korea
Abstract :
In this paper, the design and the fabrication of dual bandpass filter with controllable bandwidth is presented. Two resonators are designed to have different fundamental resonant frequencies, one for the lower passband and the other for the upper passband. A lossless transmission line model is used to determine the resonance properties of the resonator and the external quality factor. In the upper band, a dual-mode resonator was used for adjusting bandwidth. Proposed dual band filter at passband center frequency 2.45/5.25 GHz is designed and fabricated.
Keywords :
UHF filters; band-pass filters; bandwidth allocation; microwave filters; resonator filters; transmission lines; bandwidth adjustment; dual bandpass filter; dual-band filter; dual-mode resonator; frequency 2.45 GHz; frequency 5.25 GHz; half wavelength resonator; lossless transmission line model; passband center frequency; Band pass filters; Bandwidth; Dual band; Fabrication; Passband; Propagation losses; Resonance; Resonant frequency; Resonator filters; Transmission lines;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2009. ECTI-CON 2009. 6th International Conference on
Conference_Location :
Pattaya, Chonburi
Print_ISBN :
978-1-4244-3387-2
Electronic_ISBN :
978-1-4244-3388-9
DOI :
10.1109/ECTICON.2009.5137197
