Results 11 to 20 of about 8,090,991 (304)
Molecules, 2022 Hyperbolic metamaterials are a class of materials exhibiting anisotropic dielectric function owing to the morphology of the nanostructures. In these structures, one direction behaves as a metal, and the orthogonal direction behaves as a dielectric ...
Robynne L. Paldi +8 more
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Sr2+ Ion Substitution Enhanced Dielectric Properties of Co(2)Z Ferrites for VHF Antenna Substrate
Metals, 2022 The effect of Sr2+ ions on the microstructure and high frequency properties of 2.5 wt% Bi2O3 added to Co(2)Z hexaferrites (3Ba(1-x)SrxO•2CoO•12Fe2O3, x = 0.0, 0.2, 0.4 and 0.6) synthesised using the solid-state reaction method was investigated ...
Ji Wang, Kunlong Li, Gongwen Gan
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Sensors, 2022 Fifth generation (5G) technology aims to provide high peak data rates, increased bandwidth, and supports a 1 millisecond roundtrip latency at millimeter wave (mmWave).
Noorlindawaty Md Jizat +4 more
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A novel mode-division (de)multiplexer with degenerate modes output for MIMO-FREE applications
Frontiers in Physics, 2022 In this study, we propose a novel three-dimensional architecture mode (de)multiplexer with degenerate modes output using a pure silica FMF ring core transmission channel, which solves the problem caused by random mode rotation and can be used in multiple-
Huadong Xing +7 more
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Ultra low-loss low-efficiency diffraction gratings
Optics Express, 2005 The realization of ultra low-loss dielectric reflection gratings with diffraction efficiencies between 7% and 0.02% is presented. By placing the grating beneath the highly reflective layerstack scattering was significantly reduced. This concept allows the all-reflective coupling of high laser radiation to high finesse cavities, thereby circumventing ...
Clausnitzer, T. +8 more
openaire +3 more sources
Low-loss directional cloaks without superluminal velocity or magnetic response [PDF]
, 2012 The possibility of making an optically large (many wavelengths in diameter) object appear invisible has been a subject of many recent studies. Exact invisibility scenarios for large (relative to the wavelength) objects involve (meta)materials with ...
Smith, David R., Urzhumov, Yaroslav
core +2 more sources
Low-Loss Narrowband Filtering Switch Based on Coaxial Resonators
IEEE Access, 2018 In this paper, a narrowband filtering switch with low loss and high selectivity is presented based on coaxial resonators for the first time. PIN diodes mounted on the printed circuit boards are embedded into a coaxial filter to enable ON and OFF states ...
Hui-Yang Li +3 more
doaj +1 more source
Controlling internal barrier in low loss BaTiO3 supercapacitors [PDF]
, 2009 Supercapacitor behavior has been reported in a number of oxides including reduced BaTiO3 ferroelectric ceramics. These so-called giant properties are however not easily controlled. We show here that the continuous coating of individual BaTiO3 grains by a
C. Elissalde +6 more
core +4 more sources
IET Nanodielectrics, 2019 It's significantly urgent to develop the polymer film capacitor with large energy density and high charge-discharge efficiency for the applications of portable electronics and power hybrid system.
Huijian Ye +5 more
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Surface Encapsulation for Low-Loss Silicon Photonics [PDF]
, 2007 Encapsulation layers are explored for passivating the surfaces of silicon to reduce optical absorption in the 1500-nm wavelength band. Surface-sensitive test structures consisting of microdisk resonators are fabricated for this purpose. Based on previous
Borselli, M. +4 more
core +2 more sources