Results 41 to 50 of about 33,140 (313)

Quantum master equation for coupling mechanism of metamaterial

open access: yesResults in Physics, 2022
In this paper, we present a full quantum description for coupling mechanism of the metamaterial. We start the derivation from quantum master equation to fit the spectrum of THz metamaterial. Therefore we can employ the quantum master equation to describe
Wei Huang   +6 more
doaj   +1 more source

A Novel Method for Enhancement of Gain Bandwidth of a Hybrid 3-State Reconfigurable Reflectarray Metasurface Antenna [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
This paper proposes a novel method for enhancing the gain bandwidth of hybrid 3-state reconfigurable reflectarray metasurface antennas (RRMAs) containing passive unit cells.
Yong-Hyun Nam, Jeong-Hae Lee
doaj   +1 more source

Coding Metamaterials, Digital Metamaterials and Programming Metamaterials

open access: yes, 2014
The correspondence E-mail: tjcui@seu.edu.cn.
Cui, Tie Jun   +4 more
openaire   +2 more sources

A Comparative Study and Analysis of Layered-Beam and Single-Beam Metamaterial Structures: Transmissibility Bandgap Development

open access: yesApplied Sciences, 2022
Recently, layered-beam metamaterial structures have been gaining popularity in a variety of engineering applications including energy harvesting and vibration isolation.
Winner Anigbogu, Hamzeh Bardaweel
doaj   +1 more source

Actively electromagnetic modulation of IHI-shaped terahertz metamaterial with high-efficiency switching characteristic

open access: yesResults in Physics, 2019
We present terahertz (THz) metamaterial with multi-configurations, which are composed of H-shaped, II-shaped, and IHI-shaped configurations, respectively.
Xiao Zhang, Yu-Sheng Lin
doaj   +1 more source

Metamaterials and Symmetry

open access: yesSymmetry, 2022
How are metamaterials related to symmetry [...]
openaire   +1 more source

Dual-band high-frequency metamaterial absorber based on patch resonator for solar cell applications and its enhancement with graphene layers [PDF]

open access: yes, 2016
In this paper, a dual-band high-frequency metamaterial absorber based on patch resonator is designed and analyzed for solar cells. In order to obtain a metamaterial absorber, metal-semiconductor-metal layers are combined.
Ustunsoy, Mehmet Pasa, Sabah, Cumali
core   +1 more source

Metamaterial Based Circular Disc Patch Antenna Miniaturization

open access: yesAdvanced Electromagnetics, 2018
A novel metamaterial structure has been proposed for its operation at 2.4 GHz. A circular disc patch antenna resonating at dual band frequency with 2.4 GHz and 3.36 GHz has been designed using full field solver CST MWS tool and the loading effect of the ...
V. Kumar, Y. Wu
doaj   +1 more source

Metamaterial-based octave-wide terahertz bandpass filters [PDF]

open access: yes, 2022
We present octave-wide bandpass filters in the terahertz (THz) region based on bilayer-metamaterial (BLMM) structures. The passband region has a super-Gaussian shape with a maximum transmittance approaching 70% and a typical stopband rejection of 20 dB ...
Avinash Singh (429880)   +7 more
core   +1 more source

Highly tunable low frequency metamaterial cavity for vibration localization

open access: yesScientific Reports, 2022
Metamaterial cavity has gathered much attention recently due to its capability of localizing vibration energy. Despite the active research, however, there are still big technical challenges not solved yet.
Hong Woo Park   +4 more
doaj   +1 more source

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