Results 11 to 20 of about 3,184,733 (264)

ZnO-AuxCu1−x Alloy and ZnO-AuxAl1−x Alloy Vertically Aligned Nanocomposites for Low-Loss Plasmonic Metamaterials

open access: yesMolecules, 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
doaj   +1 more source

Sr2+ Ion Substitution Enhanced Dielectric Properties of Co(2)Z Ferrites for VHF Antenna Substrate

open access: yesMetals, 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
doaj   +1 more source

Low-Loss Plasmonic Dielectric Nanoresonators [PDF]

open access: yesNano Letters, 2017
9 pages, 6 figures, supplementary not ...
Yi Yang   +4 more
openaire   +5 more sources

Insertion Loss and Phase Compensation Using a Circular Slot Via-Hole in a Compact 5G Millimeter Wave (mmWave) Butler Matrix at 28 GHz

open access: yesSensors, 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
doaj   +1 more source

Quantitative Low Loss and Ultra Low Loss Spectroscopy in the STEM

open access: yesMicroscopy and Microanalysis, 2001
Abstract Many of the topics in valence spectroscopy originally pioneered with TEM equipment have now been taken over by STEM. Notable exceptions are the studies by J. Silcox and his colleagues of plasmon dispersion and of the guided modes in thin slabs where retardation and other relativistic effects arise.
A Howie, FJ Garcia de Abajo, N Yamamoto
openaire   +1 more source

Low-Loss Narrowband Filtering Switch Based on Coaxial Resonators

open access: yesIEEE 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

A novel mode-division (de)multiplexer with degenerate modes output for MIMO-FREE applications

open access: yesFrontiers 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
doaj   +1 more source

Electron structure in modified BaTiO(3)/poly(vinylidene fluoride) nanocomposite with high dielectric property and energy density

open access: yesIET 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
doaj   +1 more source

A Terahertz Polarizer Based on Multilayer Metal Grating Filled in Polyimide Film

open access: yesIEEE Photonics Journal, 2016
Terahertz (THz) polarizers with low reflection and absorption loss and high polarization extinction ratio (PER) based on multilayer metallic gratings filled in a polyimide film were studied theoretically and experimentally.
Hong-Yan Mao   +9 more
doaj   +1 more source

A Compact and Low-Loss MMI Coupler Fabricated With CMOS Technology

open access: yesIEEE Photonics Journal, 2012
We present the design, fabrication, and measurement of a compact and low-loss multimode interference (MMI) coupler based on the silicon nanowire waveguide.
Zhen Sheng   +8 more
doaj   +1 more source

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