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Double negative media using interconnected ω‐type metallic particles
Author(s) -
Lheurette É.,
Vanbésien O.,
Lippens D.
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.22034
Subject(s) - metamaterial , broadband , microwave , bandwidth (computing) , engineering , context (archaeology) , electrical engineering , telecommunications , electronic engineering , computer science , acoustics , physics , optoelectronics , paleontology , biology
We report on broadband low‐loss properties of Ω‐based metamaterials. It is shown that interconnecting elementary current‐loops via their arms can yield to a relative bandwidth of around 70% for infinite arrays. Combining interconnected and disconnected sections permits one to engineer the left‐handed and right‐handed dispersion branches with the prospect of composite artificial media such as those initially proposed by Itoh and coworkers (IEEE Microwave Mag 34 (2004) 34–50) in the context of transmission lines. This typical behavior is interpreted through a lumped element model. At last, some guidelines to optimize the transmission properties of Ω‐shaped arrays are presented. These results are discussed on the basis of recently published data concerning Ω‐shaped and C‐shaped particles. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 84–90, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22034