Title :
Design of dual-band bandpass filters using stepped-impedance resonators
Author_Institution :
Dept. of Electron. Eng., Lunghwa Univ. of Sci. & Technol., Taoyuan, Taiwan
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;
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
DOI :
10.1109/AIMSEC.2011.6010122
