Results 21 to 30 of about 2,328 (261)

Aperiodic-metamaterial-based absorber

open access: yesAPL Materials, 2017
The periodic-metamaterial-based perfect absorber has been studied broadly. Conversely, if the unit cell in the metamaterial-based absorber is arranged aperiodically (aperiodic-metamaterial-based absorber), how does it perform?
Quanlong Yang   +9 more
doaj   +1 more source

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

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

Dual broadband metamaterial absorber

open access: yesOptics Express, 2015
We propose polarization-independent and dual-broadband metamaterial absorbers at microwave frequencies. This is a periodic meta-atom array consisting of metal-dielectric-multilayer truncated cones. We demonstrate not only one broadband absorption from the fundamental magnetic resonances but additional broadband absorption in high-frequency range using ...
Kim, Young Ju   +5 more
openaire   +3 more sources

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

Manually tunable ventilated metamaterial absorbers [PDF]

open access: yesApplied Physics Letters, 2021
For most acoustic metamaterials, once they have been fabricated, their operating frequencies and functions cannot be adjusted, which is an intrinsic barrier for the development of realistic applications. The study to overcome this limit has become a significant issue in acoustic metamaterial engineering.
Xiao Xiang   +4 more
openaire   +3 more sources

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 microwave coding metamaterial absorbers [PDF]

open access: yesScientific Reports, 2020
AbstractIn this paper, a broadband metamaterial microwave absorber is designed, simulated and measured. Differently from the traditional method which is only based on unit cell boundary conditions, we carried out full-wave finite integration simulations using full-sized configurations.
Manh Cuong Tran   +9 more
openaire   +2 more sources

Broadband microwave metamaterial absorber with lumped resistor loading

open access: yesEPJ Applied Metamaterials, 2019
Narrow absorption bandwidth has been a fundamental drawback hindering many metamaterial absorbers for practical applications. In this paper, by loading lumped resistors, we have successfully designed a microwave metamaterial absorber with multioctave ...
Chen Ke   +5 more
doaj   +1 more source

Reconfigurable ultra-sparse ventilated metamaterial absorber

open access: yesAPL Materials, 2023
The impetus for examining ventilated acoustic metamaterials stems from the demand for increasingly efficient and adaptable noise reduction and sound wave manipulation techniques.
Yangsong Ye   +6 more
doaj   +1 more source

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