Results 21 to 30 of about 10,273 (293)

Polarization insensitivity characterization of dual-band perfect metamaterial absorber for K band sensing applications

open access: yesScientific Reports, 2021
Polarization insensitive metamaterial absorbers (MA) are currently very attractive due to their unique absorption properties at different polarization angles.
Mohammad Lutful Hakim   +4 more
doaj   +1 more source

Multi-spectral materials: hybridisation of optical plasmonic filters and a terahertz metamaterial absorber [PDF]

open access: yes, 2013
Multi-spectral materials, using hybridised plasmonic and metamaterial structures, can simultaneously exhibit unique resonant phenomena over several decades of wavelengths.
Cumming, David R.S.   +3 more
core   +2 more sources

Polarization insensitive metamaterial absorber based on E-shaped all-dielectric structure [PDF]

open access: yesJournal of Advanced Dielectrics, 2015
In this paper, we designed a metamaterial absorber performed in microwave frequency band. This absorber is composed of E-shaped dielectrics which are arranged along different directions. The E-shaped all-dielectric structure is made of microwave ceramics
Liyang Li   +5 more
doaj   +1 more source

Ultra-broadband microwave metamaterial absorber [PDF]

open access: yesApplied Physics Letters, 2012
A microwave ultra-broadband polarization-independent metamaterial absorber is demonstrated. It is composed of a periodic array of metal-dielectric multilayered quadrangular frustum pyramids. These pyramids possess resonant absorption modes at multi-frequencies, of which the overlapping leads to the total absorption of the incident wave over an ultra ...
Ding, Fei   +4 more
openaire   +2 more sources

Toward an Ultra-Wideband Hybrid Metamaterial Based Microwave Absorber

open access: yesMicromachines, 2020
In this paper, we propose a novel design of an ultra-wideband hybrid microwave absorber operating in the frequency range between 2 GHz and 18 GHz. This proposed hybrid absorber is composed of two different layers that integrate a multiband metamaterial ...
Aicha El Assal   +5 more
doaj   +1 more source

Design and verification of a high bandwidth metamaterial based on daily ceramics and its thermal conductivity

open access: yesMaterials Research Express, 2023
High temperature resistant metamaterial absorbers with broadband and high performance is a promising research field. At present, many reported absorbing materials have the defects of single absorption mechanism, temperature sensitivity, and low ...
Dan Long, Baosheng Lin
doaj   +1 more source

An ultra-broadband microwave absorber based on hybrid structure of stereo metamaterial and planar metasurface for the S, C, X and Ku bands

open access: yesResults in Physics, 2021
Broadband electromagnetic (EM) wave absorbers are persistently desired in the past decades due to their extensive applications in different fields. In this paper, we proposed and demonstrated a metamaterial absorber (MA) based on a hybrid structure of ...
Fang-kun Zhou   +6 more
doaj   +1 more source

Fractal interwoven resonator based penta-band metamaterial absorbers for THz sensing and imaging

open access: yesScientific Reports, 2022
This paper presents a unique penta-band metamaterial absorber platform for terahertz imaging systems.The proposed fractal metamaterial absorber (FMMA) consists of fractal triangle section metasurfaces.
Hurrem Ozpinar, Sinan Aksimsek
doaj   +1 more source

Broadband Metamaterial Absorbers

open access: yesAdvanced Optical Materials, 2018
AbstractThe recent rise of metamaterials opens new opportunities for absorbers due to their designed electrodynamic properties and effects, allowing the creation of materials with effective values of permittivity and permeability that are not available in naturally occurring materials.
Peng Yu   +9 more
openaire   +3 more sources

Frequency‐independent Sound Absorbing Metamaterials

open access: yesAdvanced Materials Technologies, 2023
AbstractInspired by the concept of frequency‐independent antennas in the electromagnetics, which theoretically exhibit a frequency‐independent bandwidth, this paper extends the concept to acoustics by adopting a log‐spiral and its modified shape to introduce a class of metamaterials called frequency‐independent sound‐absorbing metamaterials.
Semere B. Gebrekidan, Steffen Marburg
openaire   +2 more sources

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