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Design of dual‐band filter using defected split‐ring resonator combined with interdigital capacitor
Author(s) -
Wu B.,
Fan J. W.,
Zhao L. P.,
Liang C. H.
Publication year - 2007
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.22673
Subject(s) - microwave , resonator , microstrip , capacitor , multi band device , filter (signal processing) , optoelectronics , equivalent circuit , electrical engineering , dual (grammatical number) , electronic engineering , materials science , engineering , telecommunications , voltage , antenna (radio) , art , literature
A novel type of dual‐band microstrip structure and its equivalent circuit are investigated, which is composed of defected split‐ring resonator and interdigital capacitor. The influence of design parameters on the frequency characteristics is discussed, then a dual‐band microstrip filter, which has two passbands of 1.8–2.5 GHz and 5.5–5.9 GHz with a transmission zero, is designed and fabricated. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2104–2106, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22673