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Dual‐mode ring resonators with inductive ω‐shaped perturbations for miniaturizations and dual‐bands
Author(s) -
Liu JiChyun,
Liu TaCheng,
Zeng BingHao,
Chou HisChiang
Publication year - 2009
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.24502
Subject(s) - resonator , multi band device , dual mode , microwave , bandwidth (computing) , dual (grammatical number) , physics , split ring resonator , electrical engineering , optoelectronics , materials science , engineering , electronic engineering , optics , telecommunications , art , literature , antenna (radio)
Novel inductive Ω‐shaped perturbations for dual‐mode ring resonators (DMRR) to design dual‐band band‐pass filter with size reduction are presented in this article. Both inductive Ω‐shaped perturbations in DMRR and DMDRR (Dual‐Mode Double Ring Resonator) are studied to improve the performance of the conventional DMRR and DMDRR. Significant size reductions over 56 and 10% are achieved at dual‐band 1.13 and 2.11 GHz, respectively. To obtain a lower insertion loss (2.49/0.75 dB), higher rejection (−19.93/−16.41 dB), and wider bandwidth (about 4.82/16.45%) responses, the miniaturized DMDRR filter are presented. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1986–1991, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24502