Articles with "coding metasurface" as a keyword



Ultra-wideband radar cross-section reduction based on phase cancellation

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Published in 2023 at "Electromagnetics"

DOI: 10.1080/02726343.2023.2206263

Abstract: ABSTRACT In this study, a 2-bit coding metasurface is proposed, which can achieve ultra-wideband radar cross section (RCS) reduction under arbitrary polarized incidences due to phase cancellation. In the design process of the 2-dit coding… read more here.

Keywords: coding metasurface; ultra wideband; phase; reduction ... See more keywords
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Design of resistor-loaded coding metasurface for independent amplitude and phase control

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Published in 2021 at "Journal of Electromagnetic Waves and Applications"

DOI: 10.1080/09205071.2021.1908916

Abstract: Due to their subwavelength thickness, light weight and easy fabrication, metasurfaces show obvious advantages over 3D metamaterials. Among this, a new concept so-called digital coding metasurfaces which are described in a direct manner by quantized… read more here.

Keywords: phase; control; resistor loaded; design resistor ... See more keywords
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An ultra-wideband 2-bit coding metasurface using Pancharatnam–Berry phase for radar cross-section reduction

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Published in 2022 at "Chinese Physics B"

DOI: 10.1088/1674-1056/ac11ec

Abstract: An ultra-wideband 2-bit coding metasurface is designed for radar cross-section (RCS) reduction. The design process is presented in detail, in which a polarization conversion metasurface (PCM) is first proposed. The proposed PCM can realize ultra-wideband… read more here.

Keywords: metasurface; ultra wideband; coding metasurface; bit coding ... See more keywords
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Dynamic and complete terahertz wavefront manipulation via an anisotropic coding metasurface.

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Published in 2022 at "Applied optics"

DOI: 10.1364/ao.470274

Abstract: A reconfigurable anisotropic coding metasurface composed of a graphene layer and anisotropic Jerusalem-cross metallic layer is proposed for dynamic and complete multi-channel terahertz wavefront manipulation. By controlling the Fermi energy of graphene, continuous amplitude modulation… read more here.

Keywords: coding metasurface; terahertz wavefront; anisotropic; anisotropic coding ... See more keywords
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Optically transparent coding metasurface with simultaneously low infrared emissivity and microwave scattering reduction.

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Published in 2020 at "Optics express"

DOI: 10.1364/oe.402326

Abstract: In this paper, an optically transparent coding metasurface structure based on indium tin oxide (ITO) thin films with simultaneously low infrared (IR) emissivity and microwave scattering reduction is proposed. To this end, two ITO coding… read more here.

Keywords: optically transparent; scattering reduction; metasurface; emissivity ... See more keywords
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Optically transparent and microwave diffusion coding metasurface by utilizing ultrathin silver films.

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Published in 2021 at "Optics express"

DOI: 10.1364/oe.442512

Abstract: The past few years have witnessed the great success of artificial metamaterials with effective medium parameters to control electromagnetic waves. Herein, we present a scheme to achieve broadband microwave low specular reflection with uniform backward… read more here.

Keywords: optically transparent; metasurface; diffusion coding; silver ... See more keywords
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Ultra-thin 2-bit anisotropic Huygens coding metasurface for terahertz wave manipulation.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.451959

Abstract: In this work, we design an ultrathin 2-bit anisotropic Huygens coding metasurface (AHCM) composed by bilayer metallic square-ring structures for flexible manipulation of the terahertz wave. Based on the polarized-dependent components of electric surface admittance… read more here.

Keywords: coding metasurface; bit anisotropic; manipulation; huygens coding ... See more keywords
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Dynamic radiation steering with transmission-type coding metasurface.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.462664

Abstract: In this paper, we integrate continuous transmission amplitude modulation and phase coding into a metasurface, and dynamic transmitted electromagnetic field manipulation is realized in microwave regime. The active metasurface is obtained by placing a PIN… read more here.

Keywords: coding metasurface; phase coding; amplitude modulation; transmission ... See more keywords
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Transmissive coding metasurface with dual-circularly polarized multi-beam.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.466036

Abstract: The Pancharatnam-Berry (PB) phase can be used to control the phase of circularly polarized electromagnetic waves. However, there are few studies on the modulation of dual-circularly polarized multi-beam using the transmissive coding metasurface. A scheme… read more here.

Keywords: coding metasurface; transmissive coding; multi beam; phase ... See more keywords
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Dual-polarized multiplexed meta-holograms utilizing coding metasurface

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Published in 2020 at "Nanophotonics"

DOI: 10.1515/nanoph-2020-0237

Abstract: Abstract In this paper, a novel method is proposed to achieve two distinct information channels by simultaneously manipulating both the transmitted cross- and co-polarized components of a 1-bit coding metasurface under linearly polarized incidence. Compared… read more here.

Keywords: incidence; meta; polarized incidence; dual polarized ... See more keywords
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Hilbert-Coding Metasurface for Diverse Electromagnetic Controls

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Published in 2022 at "Materials"

DOI: 10.3390/ma15175913

Abstract: Metamaterials, or metasurfaces, allow the flexible and efficient manipulation of electromagnetic (EM) wave. Although the passive coding metasurfaces have achieved a great deal of functionality, they also need a complex design process. In this paper,… read more here.

Keywords: coding metasurface; metasurface diverse; coding metasurfaces; electromagnetic controls ... See more keywords