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. 2018 May 4;7:18008. doi: 10.1038/lsa.2018.8

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Copyright © 2018 The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Experimental results for the far-field and near-field measurements. (a) The fabricated sample with the coding matrix M₁. The scale bar corresponds to 60 mm. (b) The measured far-field radiation pattern for the sample with coding matrix M₁. (c) The fabricated sample with the coding matrix M₅. (d) The schematic illustration of the duplex conversion from spatial waves to SWs under the oblique incidence in the experiments. (e, f) The electric-field distributions (E_x component) measured at 10 GHz on the dielectric substrate under the oblique illumination with x and y-polarizations for coding matrix M₅. The scanning area is 45 × 150 mm² (x × y). The amplitude intensity has been normalized in both plots.