Results 41 to 50 of about 106,196 (320)
Highly tunable low frequency metamaterial cavity for vibration localization
Scientific 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
Metamaterial Based Circular Disc Patch Antenna Miniaturization
Advanced 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
Acoustic Metamaterials in Aeronautics [PDF]
Applied Sciences, 2018 Metamaterials, man-made composites scaled smaller than the wavelength, have demonstrated a huge potential in their applications in acoustics, opening up for sub--wavelength acoustic absorbers, acoustic invisibility, perfect acoustic mirrors and acoustic lenses for hyper focusing, acoustic illusions and enabling new degrees of freedom in the control of ...
Palma, Giorgio +4 more
openaire +4 more sources
Tunable transmission and harmonic generation in nonlinear metamaterials
, 2008 We study the properties of a tunable nonlinear metamaterial operating at microwave frequencies. We fabricate the nonlinear metamaterial composed of double split-ring resonators and wires where a varactor diode is introduced into each resonator so that ...
Alexander B. Kozyrev +4 more
core +1 more source
Hyperbolic metamaterial interfaces: Hawking radiation from Rindler horizons and the "end of time" [PDF]
, 2011 Extraordinary rays in a hyperbolic metamaterial behave as particle world lines in a three dimensional (2+1) Minkowski spacetime. We analyze electromagnetic field behavior at the boundaries of this effective spacetime depending on the boundary orientation.
Hwang, Ehren +2 more
core +3 more sources
Coding Metamaterials, Digital Metamaterials and Programming Metamaterials
, 2014 As artificial structures, metamaterials are usually described by macroscopic effective medium parameters, which are named as "analog metamaterials". Here, we propose "digital metamaterials" in two steps. Firstly, we present "coding metamaterials" that are composed of only two kinds of unit cells with 0 and phase responses, which we name as "0" and ...
Cui, Tie Jun +4 more
openaire +2 more sources
A d.c. magnetic metamaterial [PDF]
Nature Materials, 2008 Electromagnetic metamaterials are a class of materials which have been artificially structured on a subwavelength scale. They are currently the focus of a great deal of interest because they allow access to previously unrealisable properties like a negative refractive index.
Magnus, F +9 more
openaire +7 more sources
Applied Sciences, 2022 The electromagnetically induced transparency effect of terahertz metamaterials exhibits excellent modulation and sensing properties, and it is critical to investigate the modulation effect of the transparent window by optimizing structural parameters. In
Zhenlin Wu +8 more
doaj +1 more source
, 2017 A novel design of an elastic metamaterial with anisotropic mass density is proposed to manipulate flexural waves at a subwavelength scale. The three-dimensional metamaterial is inspired by kirigami, which can be easily manufactured by cutting and folding
Huang, G. L. +3 more
core +2 more sources
Quantum metamaterial without local control [PDF]
, 2013 A quantum metamaterial can be implemented as a quantum coherent 1D array of qubits placed in a transmission line. The properties of quantum metamaterials are determined by the local quantum state of the system.
Nori, Franco +4 more
core +2 more sources