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Design of quad‐band bandpass filter using assembled resonators
Author(s) -
Chen FuChang,
Chu QingXin
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25993
Subject(s) - stub (electronics) , resonator , band pass filter , microwave , passband , electrical impedance , electronic engineering , center frequency , acoustics , engineering , electrical engineering , physics , telecommunications
Abstract This letter presents a novel approach for designing quad‐band bandpass filter with independently controlled center frequencies.Assembled resonator constructed by a stepped impedance resonator (SIR) and a stub‐loaded SIR is employed to obtain quad‐band responses. The SIR is designed to operate at the second and fourth passbands and the stub‐loaded SIR is designed to operate at the first and third passbands. Good agreement is shown between the simulation and the measurement, the resonators are meandered to give an overall circuit size of about 21.8 × 30.2 mm 2 . © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1305–1308, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25993