Results 41 to 50 of about 1,349 (239)

Programmable metasurface for front‐back scattering communication

open access: yesNanophotonics, 2023
Abstract Achieving high‐efficient and low‐power communication is pivotal yet very challenging in the emerging technologies. Unlike conventional backscatter communication system, we propose and demonstrate an amplitude‐reconfigurable metasurface loaded with PIN diodes to build a front‐back scattering communication transmitter, which ...
Haipeng Li   +5 more
openaire   +4 more sources

Programmable Reflection–Transmission Shared‐Aperture Metasurface for Real‐Time Control of Electromagnetic Waves in Full Space

open access: yesAdvanced Science, 2021
Recently, programmable metamaterials or metasurfaces have been developed to dynamically edit electromagnetic waves for realizing different functions in the same platform.
Lei Bao   +5 more
doaj   +1 more source

Adaptive Wettability of a Programmable Metasurface [PDF]

open access: yesAdvanced Engineering Materials, 2020
Metasurfaces with specific wettability have recently been gaining relevance in numerous areas of science and industry. This hasled to the technical requirements of these functional metasurfaces increasing in cost and complexity. Examples can be found in adjustable filters and membranes, as well as in lab‐on‐chip systems.
Marius Specht   +2 more
openaire   +2 more sources

Programmable wavefront control in the visible spectrum using low-loss chalcogenide phase-change metasurfaces [PDF]

open access: yes, 2022
All-dielectric metasurfaces provide unique solutions for advanced wavefront manipulation of light with complete control of amplitude and phase at sub-wavelength scales.
Tobias W.W. Mass   +17 more
core   +1 more source

Programmable Amplitude‐Coding Metasurface with Multifrequency Modulations [PDF]

open access: yesAdvanced Intelligent Systems, 2021
Recently, programmable metasurfaces have aroused great attention for various applications such as beam manipulation, wireless communication, and holograms by modulating the spatial phase or amplitude. However, programmable amplitude‐coding modulations have rarely been investigated due to the difficulty in realizing dynamic control of amplitude. Herein,
Qiao Ru Hong   +6 more
openaire   +2 more sources

Programmable metasurface RCS prediction under obstacles based on DNN

open access: yesFrontiers in Materials, 2022
Programmable metasurfaces have attracted significant attention in various applications such as radar and 6G communications, owing to their ability freely shape the far-field pattern.
Yutong Jiang   +8 more
doaj   +1 more source

Intelligent Beam Steering for Wireless Communication Using Programmable Metasurfaces [PDF]

open access: yes, 2023
Reconfigurable Intelligent Surfaces (RIS) are well established as a promising solution to the blockage problem in millimeter-wave (mm-wave) and terahertz (THz) communications, envisioned to serve demanding networking applications, such as 6G and ...
Abadal Cavallé, Sergi   +19 more
core   +2 more sources

Asynchronous Circuits as an Enabler of Scalable and Programmable Metasurfaces [PDF]

open access: yes2018 IEEE International Symposium on Circuits and Systems (ISCAS), 2018
Metamaterials and metasurfaces have given possibilities for manipulating electromagnetic (EM) waves that in the past would have seemed impossible. The majority of metasurface designs are suitable for a particular frequency and angle of incidence. One long-sought objective is the design of programmable metasurfaces to dynamically manipulate a variety of
Petrou, Loukas   +5 more
openaire   +3 more sources

Software-defined reconfigurable metasurfaces for programmable wireless environments [PDF]

open access: yes, 2022
Programmable reconfigurable metasurfaces are expected to constitute a key element in the future programmable wireless environments. Here we discuss the design and fabrication of a programmable, reconfigurable and multifunctional metasurface able to ...
Maria Kafesaki; Foundation for Research and Technology Hellas (FORTH) and University of Crete, Greece   +2 more
core  

One-bit quantization is good for programmable coding metasurfaces [PDF]

open access: yes, 2022
International audienceThe information-carrying programmable metasurfaces has found widespread applications in communication, sensing, and other related areas. However, there is a fundamental but unresolved problem, i.e., the rigorous understanding of the
Cheng, Qiang   +15 more
core   +1 more source

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