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Applied Physics Letters / Volume 83 / Issue 22 / DEVICE PHYSICS

Appl. Phys. Lett. 83, 4652 (2003); doi:10.1063/1.1631392 (3 pages)

Split ring resonator-based left-handed coplanar waveguide

F. Martín1, J. Bonache1, F. Falcone2, M. Sorolla2, and R. Marqués3

1Departament d’Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain
2Departamento de Ingeniería Eléctrica y Electrónica, Universidad Pública de Navarra, 31006 Pamplona (Navarra), Spain
3Departamento de Electrónica y Electromagnetismo. Facultad de Física–Universidad de Sevilla, Av. Reina Mercedes s/n, 41012 Sevilla (Spain)

(Received 9 May 2003; accepted 8 October 2003)

In this letter, a planar left-handed propagating medium consisting of a coplanar waveguide (CPW) inductively coupled to split ring resonators (SRR) and periodically loaded with narrow metallic wires is proposed. The wires make the structure behave as a microwave plasma with a negative effective permittivity which covers a broad frequency range. The negative permeability required to achieve left-handed wave propagation is provided by the rings in the vicinity of their resonant frequency. The result is a structure which allows negative wave propagation in a narrow frequency band. The transmission coefficient measured in a fabricated prototype device exhibits very low insertion losses in the pass band and high-frequency selectivity. Since rings are much smaller than signal wavelength at resonance and can be easily tuned, SRR-CPW-based structures are of interest for the design of very compact microwave circuits based on left handedness. © 2003 American Institute of Physics.

© 2003 American Institute of Physics

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KEYWORDS and PACS

Keywords

coplanar waveguides, permittivity, resonators, chirowaveguides, losses, inductors, waveguide couplers

PACS

  • 84.40.Az

    Waveguides, transmission lines, striplines

ARTICLE DATA

Permalink
http://link.aip.org/link/doi/10.1063/1.1631392

PUBLICATION DATA

ISSN:

0003-6951 (print)  
1077-3118 (online)

Publisher:

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    D. R. Smith and N. Kroll, Phys. Rev. Lett. 85, 2933 (2000).

    C. Caloz, C.-C. Chang, and T. Itoh, J. Appl. Phys. 90, 5483 (2001)JAPIAU000090000011005483000001.

    D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, Phys. Rev. Lett. 84, 4184 (2000).

    R. Marqués, J. Martel, F. Mesa, and F. Medina, Phys. Rev. Lett. 89, 183901 (2002).

    A. Grbic and G. V. Eleftheriades, J. Appl. Phys. 92, 5930 (2002)JAPIAU000092000010005930000001.

    R. Marqués, F. Medina, and R. Rafii-El-Idrissi, Phys. Rev. B 65, 144440 (2002).


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