Dual-band bandpass filter using coupled resonator pairs

Author

Chen, Cheng-Chung

Author_Institution

Dept. of RF Commun. Syst. Technol., Ind. Technol. Res. Inst., Taiwan, Taiwan

Volume

15

Issue

4

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

259

Lastpage

261

Abstract

This letter proposes and fabricates a novel dual-band bandpass filter topology. The proposed topology facilitates the split resonating frequencies of coupled resonator pairs in realizing the dual-band response and introduces transmission zeros for improving the stopband attenuation. The semi-lumped prototype enables the integration of the filter in a multilayer circuit for miniaturized implementation. Finally, a design example fabricated with low temperature co-fired ceramic (LTCC) technology is presented for validating the filter configuration.

Keywords

band-pass filters; ceramic packaging; poles and zeros; resonator filters; coupled resonator pairs; dual-band bandpass filter topology; filter configuration; low temperature co-fired ceramic technology; multilayer circuit; semi-lumped prototype; split resonating frequencies; stopband attenuation; transmission zeros; Attenuation; Band pass filters; Circuit topology; Coupling circuits; Dual band; Filtering theory; Nonhomogeneous media; Prototypes; Resonant frequency; Resonator filters; Bandpass filter; low temperature co-fired ceramic (LTCC);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2005.845735

Filename

1416947