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Split ring resonator-based left-handed coplanar waveguide
Martín, Ferran, (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Bonache Albacete, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Falcone, F. (Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica)
Sorolla, M. (Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica)
Marqués, R. (Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo)
American Physical Society

Data: 2003
Resum: 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.
Drets: Tots els drets reservats.
Llengua: Anglès
Document: Article ; recerca ; Versió publicada
Matèria: Planar waveguides ; Wave propagation ; Coupled resonators ; Microwave circuits ; Microwaves ; Permittivity ; Transmission coefficient ; Transmission measurement
Publicat a: Applied physics letters, Vol. 83, Issue 22 (November 2003) , p. 4652-4654, ISSN 1077-3118

DOI: 10.1063/1.1631392

4 p, 284.8 KB

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