Results 21 to 30 of about 394,351 (300)

Mode-matching analysis of a shielded rectangular dielectric-rod waveguide [PDF]

, 2005
Rectangular cross-section dielectric waveguides are widely used at millimeter wavelengths. In addition, shielded dielectric resonators having a square cross-section are often used as filter elements, however there is almost no information available on ...
Ball, James A. R., Wells, Colin G.
core   +2 more sources

Accurate modeling of gate capacitance in deep submicron MOSFETs with high-K gate-dielectrics [PDF]

, 2004
Gate capacitance of metal-oxide-semiconductor devices with ultra-thin high-K gate-dielectric materials is calculated taking into account the penetration of wave functions into the gate-dielectric.
A. Haque, Chim, Ghetti, Hakim, Haque, Haque, Haque, Kauser, M.M.A. Hakim, Mudanai, Mudanai, Richter, Stern, Städele, Wilk, Yang, Yeo   +16 more
core   +1 more source

Structural and magnetic properties of La0.7Sr0.3MnO3 ferromagnetic thin film grown on PMN-PT by sol–gel method [PDF]

Journal of Advanced Dielectrics, 2017
We report the preparation of epitaxial La0.7Sr0.3MnO3 thin films grown on (001)-oriented 0.72Pb(Mg1∕3Nb2∕3)O3-0.28PbTiO3 substrates by the sol–gel technique.
Jing Zhang, Peng Shi, Mingmin Zhu, Ming Liu, Wei Ren, Zuoguang Ye   +5 more
doaj   +1 more source

Effect of Temperature on Creeping Flashover Voltage of Nanofilled Oil-Pressboard Insulation

IEEE Access, 2020
Creeping flashover (surface discharge) at oil-pressboard interface is considered a serious failure of the insulation system in power transformers. In this paper, creeping flashover voltage at oil-pressboard interface using the concept of nanofluids is ...
Mohamed E. Ibrahim, Alyaa A. Nassar, Mohamed A. Izzularab, Amr M. Abd-Elhady   +3 more
doaj   +1 more source

Electric-field-controlled magnetism due to field-induced transition of Pna21/R3c in Bi1-xGdxFeO3 ceramics

Journal of Materiomics, 2021
BiFeO3 has been recognized as one of the most important room-temperature single-phase multiferroic materials, but it still suffers from several drawbacks especially the weak magnetoelectric coupling.
Jing Chen, Nan Su, Xiao Li Zhu, Xiao Qiang Liu, Jin-Xing Zhang, Xiang Ming Chen   +5 more
doaj   +1 more source

Wideband and UWB antennas for wireless applications. A comprehensive review [PDF]

, 2017
A comprehensive review concerning the geometry, the manufacturing technologies, the materials, and the numerical techniques, adopted for the analysis and design of wideband and ultrawideband (UWB) antennas for wireless applications, is presented. Planar,
Cicchetti, Renato, Miozzi, Emanuela, Testa, Orlandino   +2 more
core   +3 more sources

Dielectric materials, design and realization [PDF]

SPIE Proceedings, 2015
It has been the dream of many scientists to create polymeric materials which exhibit simultaneously high dielectric permittivity, low glass transition temperature, and excellent elastic properties. Such materials would be a highly attractive dielectric in electromechanical transducers.
Opris D. M., Quinsaat J. Q. E., Dünki S. J., Ko Y. S., Alexandru M., Racles C., Nüesch F.   +6 more
openaire   +1 more source

Density functional investigations on electronic structures, magnetic ordering and ferroelectric phase transition in multiferroic Bi2NiMnO6

AIP Advances, 2012
Using the full-potential linearised augmented-plane wave (FP-LAPW) method based on density functional theory (DFT), we have investigated the electronic structures, the magnetic behavior, and the ferroelectric origin of multiferroic Bi2NiMnO6.
Hong Jian Zhao, Xiao Qiang Liu, Xiang Ming Chen   +2 more
doaj   +1 more source

Phase diagram and dielectric properties of Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 ceramics [PDF]

Journal of Advanced Dielectrics, 2015
xPb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3(xPIN–yPMN–zPT) ternary ceramics with morphotropic phase boundary (MPB) composition were synthesized by columbite precursor method.
Dabin Lin, Haohua Chen, Zhenrong Li, Zhuo Xu   +3 more
doaj   +1 more source

First-order phase transition and unexpected rigid rotation mode in hybrid improper ferroelectric (La, Al) co-substituted Ca3Ti2O7 ceramics

Journal of Materiomics, 2019
Ca3Ti2O7 with Ruddlesden-Popper structure exhibits the largest polarization among the known hybrid improper ferroelectrics. However, the high Curie temperature impedes the thorough study of phase transition through dielectric characterization.
Z.Z. Hu, J.J. Lu, B.H. Chen, T.T. Gao, X.Q. Liu, W. Wen, X.M. Chen   +6 more
doaj   +1 more source