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Complementary split‐ring resonator for compact waveguide filter design
Author(s) -
Ortiz N.,
Baena J. D.,
Beruete M.,
Falcone F.,
Laso M. A. G.,
Lopetegi T.,
Marqués R.,
Martín F.,
GarcíaGarcía J.,
Sorolla M.
Publication year - 2005
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.20909
Subject(s) - waveguide filter , waveguide , resonator , microwave , split ring resonator , optics , filter (signal processing) , materials science , etching (microfabrication) , optoelectronics , center frequency , prototype filter , engineering , band pass filter , filter design , physics , electrical engineering , layer (electronics) , telecommunications , nanotechnology
Abstract In this paper, the potential use of complementary split‐ring resonators (CSRRs) to design very compact waveguide filters, by etching a CSRR in the center of a metallic sheet, is demonstrated. This original layout reduces the dimensions of the well‐known resonant‐cavity waveguide filters coupled by irises. This has been made feasible due to the self‐resonance property of the CSRR. Thus, it is possible to design waveguide filters with lengths equal to the thickness of a metallic sheet. Consequently, this technique paves the way for the design of miniaturized waveguide filters, in contrast to conventional waveguide filters, based on bulk resonators. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 88–92, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20909