Results 11 to 20 of about 262,069 (296)

Anomalous localized resonance using a folded geometry in three dimensions [PDF]

open access: yes, 2013
If a body of dielectric material is coated by a plasmonic structure of negative dielectric material with nonzero loss parameter, then cloaking by anomalous localized resonance (CALR) may occur as the loss parameter tends to zero.
Ammari, Habib   +4 more
core   +2 more sources

Dielectric Loss of Boron-Based Dielectrics on Niobium Resonators [PDF]

open access: yesJournal of Low Temperature Physics, 2019
Advanced solid-state quantum bits (qubits) are likely to require a variety of dielectrics for wiring crossovers, substrates, and Josephson junctions. Microwave superconducting resonators are an excellent tool for measuring the internal dielectric loss of materials. We report the dielectric loss of boron-based dielectric films using a microwave coplanar
Wisbey, David S.   +12 more
openaire   +1 more source

Permittivity, loss factor and Cole-Cole model of acrylic materials for dielectric elastomers

open access: yesResults in Physics, 2021
In this study, the dielectric constants of VHB4905 and VHB4910 are measured systematically, and the capacitance, edge capacitance, dielectric loss and dielectric loss factor are analyzed.
Hong Wang   +3 more
doaj   +1 more source

Effect of Fiber Content and Temperature on the Dielectric Properties of Kenaf Fiber-filled Rigid Polyurethane Foam

open access: yesBioResources, 2014
Kenaf fiber-filled polyurethane foams were prepared using the free rising method. The dielectric constants and the loss tangents of the composites were studied as functions of fiber content (0, 5, 10, and 15 parts per hundred of polyols by weight ...
Peng Li, Yubo Tao, Sheldon Q. Shi
doaj   +1 more source

Effects of polymorphic form and particle size of SiO2 fillers on the properties of SiO2–PEEK composites

open access: yesJournal of Advanced Dielectrics, 2021
The effects of polymorphic form and particle size of SiO2 fillers on the dielectric, mechanical and thermal properties of SiO2–Polyetheretherketone (SiO2–PEEK) composites were investigated in this paper. Strong low frequency (
Peng Jie Xue   +2 more
doaj   +1 more source

Dielectric Properties of Drugs at Lower Frequency Range from 3 KHz to 5 MHz by using Impedance Analyzer

open access: yesTo Chemistry Journal, 2020
Study of dielectric properties of medicinal compounds is useful for pharmaceutical industries for design, development, and modification of dosage-form.
Abdul Jaleel A.H   +3 more
doaj   +2 more sources

Flexible ceramic polymer composite substrates with spatially variable dielectrics for miniaturized RF applications [PDF]

open access: yes, 2010
The goal of this research is to develop a process suitable for producing monolithic conformal substrates with a spatial arrangement of material cells according to a particular design creating novel material systems, useful for many multi- functional ...
Kiziltas, Gullu   +3 more
core   +1 more source

Permittivity measurement of thermoplastic composites at elevated temperature [PDF]

open access: yes, 2001
[Abstract]: The material properties of greatest importance in microwave processing of a dielectric are the complex relative permittivity Epsilon = Epsilon' - jEpsilon'', and the loss tangent, tan Delta = Epsilon'/Epsilon''.
Ball, James A. R.   +3 more
core   +1 more source

Applicability of point dipoles approximation to all-dielectric metamaterials [PDF]

open access: yes, 2015
All-dielectric metamaterials consisting of high-dielectric inclusions in a low-dielectric matrix are considered as a low-loss alternative to resonant metal-based metamaterials.
Andryieuski, A.   +2 more
core   +2 more sources

Dielectric-induced surface wave radiation loss [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
We investigate a model which shows how the introduction of a perturbing dielectric close to an electromagnetic surface wave leads to radiation away from the surface through the dielectric. This resembles a surface waveguide passing through a wall or being deployed underground.
Schaich, Tobias   +3 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy