Design of dual-band bandpass filters using stepped-impedance resonators

Author

Tsai, Lin-Chuan

Author_Institution

Dept. of Electron. Eng., Lunghwa Univ. of Sci. & Technol., Taoyuan, Taiwan

fYear

2011

fDate

8-10 Aug. 2011

Firstpage

6602

Lastpage

6605

Abstract

In this paper, a new coupling configuration of the stepped impedance resonator (SIR) has been presented to design dual-band bandpass filters with the small circuit size. We design the filter with higher selectivity based on SIR directing-coupling, cross-coupling, input and output external quality factors. Through resonance characteristics of a SIR, the second resonant frequency can be tuned by adjusting structure parameters. The agreement between measured results and full-wave simulation prediction validates the feasible configuration of the proposed filters.

Keywords

Q-factor; band-pass filters; resonator filters; SIR cross-coupling; SIR directing-coupling; dual-band bandpass filter design; full-wave simulation prediction; quality factors; resonance characteristics; second resonant frequency; stepped-impedance resonators; structure parameters; Band pass filters; Couplings; Dual band; Filtering theory; Microwave filters; Passband; Resonator filters; crosscoupling; directing-coupling; external quality; stepped impedance resonator;

fLanguage

English

Publisher

ieee

Conference_Titel

Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011 2nd International Conference on

Conference_Location

Deng Leng

Print_ISBN

978-1-4577-0535-9

Type

conf

DOI

10.1109/AIMSEC.2011.6010122

Filename

6010122