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dc.contributor.authorShahvarpour, Attieh 
dc.contributor.authorÁlvarez Melcón , Alejandro 
dc.contributor.authorCaloz, Christophe 
dc.date.accessioned2011-11-16T13:30:46Z
dc.date.available2011-11-16T13:30:46Z
dc.date.issued2011-04-01
dc.identifier.citationSHAHVARPOUR, A., CALOZ, C., ÁLVAREZ-MELCÓN, A. Broadband and Low Beam Squint Leaky-Wave Radiation from a Uniaxially Anisotropic Grounded Slab. En Radio Science. Vol. 46, RS4006, April 2011. ISSN: 0048-6604eng
dc.identifier.issn0048-6604
dc.description.abstractThe behavior of leaky and surface modes in uniaxially anisotropic grounded slabs is investigated. First, a transverse magnetic and transverse electric modal parametric analysis of the structure is performed, based on dispersion relations, comparing the non-dispersive and Drude/Lorentz dispersive anisotropic slabs with an isotropic non-dispersive slab. This analysis reveals that in the case of the isotropic slab, the leaky wave pointing angle is restricted to the end-fire region. In contrast, it is shown, for the first time, that the proposed anisotropic dispersive grounded slab structure provides efficient (in particular highly directive) leaky wave radiation with a high design flexibility. Toward its lower frequencies, the dominant leaky mode provides full-space conical-beam scanning. At higher frequencies, it provides fixed-beam radiation (at a designable angle) with very low beam squint. A vertical dipole source is placed inside the slab to excite the relevant leaky wave mode. The radiation characteristics obtained for this structure confirms the novel low-beam squint and high-directivity operation of the dominant leaky mode. Further validation is included using the commercial software tool CST. The structure could be used to conceive antennas either for conical beam scanning (lower-frequency range) or for point-to-point communication and radar systems (higher-frequency range).eng
dc.description.sponsorshipMinisterio de Educación y Ciencia, Ref. TEC2010-21520-C04-04eng
dc.formatapplication/pdfeng
dc.language.isoengeng
dc.publisherAmerican Geophysical Union (AGU)eng
dc.rightsAmerican Geophysical Union (AGU)eng
dc.titleBroadband and Low Beam Squint Leaky-Wave Radiation from a Uniaxially Anisotropic Grounded Slabeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.subjectMetamaterialseng
dc.subjectLeaky-wave antennaeng
dc.subjectIntegral equationseng
dc.subjectAnisotropic slabseng
dc.subject.otherTeoría de la Señal y las Comunicacioneseng
dc.identifier.urihttp://hdl.handle.net/10317/1927
dc.peerreviewSIeng
dc.contributor.investgroupGrupo Electromagnetismo Aplicado a las Telecomunicacioneseng
dc.identifier.doi10.1029/2010RS004530
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesseng
dc.type.versioninfo:eu-repo/semantics/publishedVersioneng
dc.relation.projectIDMinisterio de Educación y Ciencia, Ref. TEC2010-21520-C04-04eng


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