dc.contributor.authorShang, Yuping
dc.contributor.authorShen, Zhongxiang
dc.identifier.citationShang, Y., & Shen, Z. (2017). Electromagnetic retroreflection augmented by spherical and conical metasurfaces. Journal of Applied Physics, 122(20), 205104-.en_US
dc.description.abstractThe focus of this paper is on phase gradient metasurfaces conformal to spherical and conical bodies of revolution, with an aim of engineering retroreflections and therefore augmenting backscattering cross-sections of those three-dimensional geometries under the illumination of a plane electromagnetic wave. Based on the conducting sphere and cone, the effect of the geometric revolution property on the selection of the unit inclusion of metasurfaces is considered. The procedure for using the selected unit inclusion to implement the proper reflection phase gradient onto the illuminated surfaces of those objects is formulated in detail. Retroreflections resembling conducting plates under normal incidence are observed for both the conducting sphere and cone coated with conformal metasurfaces. As a result, the redirection-induced retroreflection effectively contributes to the backscattering cross-section enhancement. A good agreement between full-wave simulations and measurements demonstrates the validity and effectiveness of backscattering cross-section enhancement using spherical and conical metasurfaces.en_US
dc.format.extent8 p.en_US
dc.relation.ispartofseriesJournal of Applied Physicsen_US
dc.rights© 2017 The Authors (Published by AIP Publishing). This paper was published in Journal of Applied Physics and is made available as an electronic reprint (preprint) with permission of The Authors (Published by AIP Publishing). The published version is available at: [http://dx.doi.org/10.1063/1.5004252]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en_US
dc.subjectGeometrical Opticsen_US
dc.titleElectromagnetic retroreflection augmented by spherical and conical metasurfacesen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.description.versionPublished versionen_US

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