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Polarization-Insensitive Metasurface for Harvesting …
In this paper, a polarization-insensitive metasurface, harvesting electromagnetic (EM) energy with high efficiency and frequency stability over a wide range of incidence angles, is proposed. The previously reported …
Webinar Energieproductie en -opslag, wat levert het op?
Nieuwe Oogst organiseert in samenwerking met GroenLeven, Windunie en Zonnepanelen op het dak een webinar over energie. In dit webinar op 6 november wordt stilgestaan bij de laatste ontwikkelingen op het gebied …
Biomassa
Onder biomassa worden stoffen van biogene oorsprong verstaan. In Nederland en in Europa is meer dan de helft van de hernieuwbare energie afkomstig van biomassa. Momenteel wordt meer dan de helft van deze …
Metasurface‐Empowered Optical Multiplexing and Multifunction
Based on this coherent pixel, metasurface devices with novel functionalities can be realized, such as incident‐angle controlled and arbitrary polarization‐controlled printing images, which are ...
Unidirectional guided-wave-driven metasurfaces for arbitrary
a Schematic of a unidirectional guided-wave-driven metasurface. The phase and intensity of the extracted wave from unidirectional waveguide by each meta-cell can be tuned individually. An array of ...
Tailless Information-Energy Metasurface | Request PDF
The geometric parameters of each module are set to: il1 = 17, il2 = 8, il3 = 1, il4 = 3, d1 = 0.4, el1 = 20, el2 = 4, T1 = 1.5, T2 = 1.5, T3 = 0.5, all in millimeters. c,d) show the phase and ...
Compact Metasurface Terahertz Spectrometer
Another modification is to explore a 2D metasurface to improve the intensity in the center of focus beam because the 2D metasurface has the effect of 2D focus, which increases the S/N ratio. Finally, the spectrometer system should be integrated with ultra-sensitive cryogenic detector arrays [ 44 - 46 ] for space observatories, while with a suitable room temperature 2D …
A metasurface with shared perforating holes for ultra-wideband …
In this paper, a novel metasurface with shared perforating holes is proposed. The metasurface consists of two types of meta-surface units. The shared perforating holes of adjacent units are realized on the covering layer using the periodic property of the metasurface unit which contributes to widening the operating bandwidth of the unit. To satisfy the periodicity …
Gradient metasurfaces: A review of fundamentals and applications
The incident plane wave is x-polarized and propagates normal to the metasurface. (b) Sketch of a metasurface in front of a metallic backreflector, including the equivalent configuration (bottom ...
Acoustic metasurfaces
For example, a metasurface divided into eight sections with phase shifts ranging from 0 to 7π/4 with increments of π/4 (Fig. 5d) can produce a metasurface with a first-order acoustic vortex with ...
Van deze groenten zit je boordevol energie
Zoete aardappel. Zoete aardappel zit vol koolhydraten, vitamine A en C, waardoor het perfect helpt tegen de bekende middagdip! Snijd ze in reepjes voor zoete aardappelfrietjes, of maak er een lekkere puree van!Heb je alleen een magnetron? Prik dan gaatjes in je zoete aardappel en leg hem er drie tot vier minuten in. Zo laat je de zoete aardappel poffen.
Shape optimization for high efficiency metasurfaces: theory and ...
The shape optimization method discussed in this paper presents an alternative to conventional library approach in metasurface design and to the more general topology …
Trendonderzoek: boeren zetten tandje bij in energietransitie
Boeren en tuinders leveren een grote bijdrage aan de energietransitie. Maar liefst 50,2 procent van de deelnemers aan het Nieuwe Oogst Trendonderzoek 2022 heeft op het eigen bedrijf zonnepanelen, windmolens, een mestvergister of warmtekrachtkoppeling. 26,8 procent is van plan om dit in de toekomst ook te gaan doen.
Electromagnetic reprogrammable coding-metasurface holograms
Here, Li et al. introduce a reprogrammable hologram based on a 1-bit coding metasurface, where the state of each unit cell of the coding metasurface can be switched electrically.
Metasurface-enhanced multifunctional flag nanogenerator for …
In this paper, a metasurface-enhanced multifunctional flag-type triboelectric nanogenerator (FTENG) is introduced, which enables efficient wind energy harvesting as well …
Rectifying Metasurfaces for Wireless Energy Harvesting System
The BCR metasurface''s energy harvesting efficiency is displayed in Fig. 10.5 when a plane wave is incident at a perpendicular angle. The BCR metasurface exhibits three …
High Efficiency Electromagnetic Energy Harvesting with …
This manuscript investigates the problem of high efficiency electromagnetic energy harvesting with metasurface. A literature analysis reveals that the most efficient metasurface arrays have …
Metasurface Energy Harvesters: State-of-the-Art Designs and …
Abstract: Metasurface Energy Harvesters (MEHs) have emerged as a prominent enabler of highly efficient Radio Frequency (RF) energy harvesters. This survey delves into the fundamentals of the MEH technology, providing a comprehensive overview of their working …
Results (recent advances in metasurface design and analysis)
We reviewed recent intelligent methods for metasurface designs including machine learning, physics-information neural network, and topology optimization method.
Metasurface Energy Harvesters: State-of-the-Art Designs and …
Metasurface Energy Harvesters: State-of-the-Art Designs and Their Potential for Energy Sustainable Reconfigurable Intelligent Surfaces. Disclaimer and Project Information . The …
(PDF) Wireless Communications with Programmable Metasurface ...
metasurface are activated and only half (left half or right half) are activated. (a) SNR curves with different activation configurations. (b) BER curves with .
Introduction of Metasurfaces
The metasurface is a split ring resonator array with oblique incidence whose electric field is parallel to the plane of the metasurface, i.e., xy-plane. The induced electric fields by incident electromagnetic fields are along the x-direction, while the induced magnetic fields are along the z-direction due to the geometries of the meta-molecules.