Determination of Dielectric Losses in a Power Transformer
Energies, 2022 The article presents a method of determining dielectric losses that occur in insulating materials in a power transformer. These losses depend mainly on the electric field stress, pulsation, dielectric loss coefficient, and electrical permittivity of ...
Zbigniew Nadolny
doaj +2 more sources
Origin of mechanical and dielectric losses from two-level systems in amorphous silicon [PDF]
Phys. Rev. Materials 5, 035601 (2021), 2020 Amorphous silicon contains tunneling two-level systems, which are the dominant energy loss mechanisms for amorphous solids at low temperatures. These two-level systems affect both mechanical and electromagnetic oscillators and are believed to produce ...
M. Molina-Ruiz +7 more
semanticscholar +2 more sources
Comment on "On the negative value of dielectric permittivity of the water surface layer" [Appl. Phys. Lett. 83, 4506 (2003)] [PDF]
, 2004 The recent interpretation of the positive resonance frequency shift in dielectric resonators loaded by water is reviewed. Instead of the invoked negative dielectric constant of water surface layer, it is demonstrated that the experimental results are ...
G. Annino, M. Cassettari, Wooten F.
core +2 more sources
Dielectric losses in multi-layer Josephson junction qubits [PDF]
, 2013 We have measured the excited state lifetimes in Josephson junction phase and transmon qubits, all of which were fabricated with the same scalable multi-layer process.
Gunnarsson, David +6 more
core +2 more sources
Effect of Dielectric Layer on Miniaturized Patch Antenna Sensor. [PDF]
Sensors (Basel)Miniature patch antenna sensors have great potential in the field of structural health monitoring for crack propagation detection due to their small size and high sensitivity.
Chen C, Zou L, Bi C, Wang A.
europepmc +2 more sources
Energies, 2021 The increasing number of power electronic devices in electrical grids may lead to harmonic distorted voltages, which are considered to be possible causes of component failures. In this study, the dielectric losses of epoxy polymer and functionally filled
Thomas Linde +5 more
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Overcoming Energy Storage-Loss Trade-Offs in Polymer Dielectrics Through the Synergistic Tuning of Electronic Effects in π-Conjugated Polystyrenes. [PDF]
Adv Sci (Weinh)Achieving high‐performance dielectric materials remains a significant challenge due to the inherent trade‐offs between high energy storage density and low energy loss.
Cheng Y +6 more
europepmc +2 more sources
Electrical engineering & Electromechanics, 2022 Introduction. The presence of semiconductor shields leads to additional dielectric losses compared to polymer insulation without shields. Losses in cables in the presence of semiconductor coatings depend on the dielectric permittivity and resistivity of ...
G. V. Bezprozvannych, M. V. Grynyshyna
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Precision measurement of the microwave dielectric loss of sapphire in the quantum regime with parts-per-billion sensitivity [PDF]
Phys. Rev. Applied 19, 034064 (2023), 2022 Dielectric loss is known to limit state-of-the-art superconducting qubit lifetimes. Recent experiments imply upper bounds on bulk dielectric loss tangents on the order of $100$ parts-per-billion, but because these inferences are drawn from fully fabricated devices with many loss channels, they do not definitively implicate or exonerate the dielectric ...
arxiv +1 more source
Unique-Solution Single-Sample Complex Dielectric Characterization Through Linear Phase Approximation
IEEE Open Journal of Antennas and Propagation, 2022 This paper presents a transmission-only (TO) approach that solves the long-standing problem of transmission phase ambiguity. The approach considers a linear frequency-dependent phase approximation to derive the phase mode value analytically and uniquely ...
Constant M. A. Niamien
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