Results 1 to 10 of about 3,315 (302)

Breaking polarisation‐bandwidth trade‐off in dielectric metasurface for unpolarised white light

open access: yesNanophotonics, 2020
Optical metasurfaces have gained attention due to their considerable prospects, which can benefit consumers and industries in terms of virtual reality devices and digital displays in various multimedia and entertainment-related applications.
Muhammad Afnan Ansari   +2 more
exaly   +3 more sources

Polarisation reconfigurable anisotropic dielectric resonator antenna [PDF]

open access: yesScientific Reports
A novel polarization reconfigurable anisotropic dielectric resonator antenna (ADRA) is presented utilizing a new modulation scheme to exploit the degree of freedom in the polarization domain.
Shadi Danesh   +5 more
doaj   +5 more sources

Correction of the influence of baseline artefacts and electrode polarisation on dielectric spectra

open access: yesBioelectrochemistry, 2000
The deconvolution of biological dielectric spectra can be difficult enough with artefact-free spectra but is more problematic when machine baseline artefacts and electrode polarisation are present as well.
Douglas B Kell   +2 more
exaly   +5 more sources

Dielectric Polarisation of Binary Mixture

open access: yes, 1971
Dielectric polarisation of nitrobenzene has been studied at 30° in three solvents benzene, carbon te­trachloride and cyclohexane. The results obtained have been discussed to understand the merits of the equation proposed by Palit1 and also to study the ...
A. N. Srivastava, P. R. Talesara
core   +3 more sources

Dielectric polarisation in naturally disordered trilead tetroxide Pb3O4

open access: yesPhysics of Complex Systems, 2020
The paper presents the results of an experimental study of trilead tetraoxide Pb3O4 binder layers and their dielectric properties. The study revealed polarisation processes in low frequency range associated with structure peculiarities in the Pb3O4 ...
Вачаган Тигранович Аванесян   +2 more
doaj   +3 more sources

Design, synthesis and processing of PVDF-based dielectric polymers

open access: yesIET Nanodielectrics, 2018
Due to the appealing piezoelectric, pyroelectric, and ferroelectric (FE) properties, poly(vinylidene fluoride) (PVDF)-based dielectric polymers have been attracting great attention from both the academic and industrial communities.
Shan Wang, Qi Li
doaj   +2 more sources

Dual-polarised dielectric resonator antenna with high isolation and low cross-polarisation

open access: yesElectronics Letters, 2009
A novel, dual-polarised dielectric resonator antenna with high-isolation and low cross-polarisation is presented using a hybrid feeding technique. Port isolation of 35.9 dB and a cross-polarisation level of −34 dB are measured. The impedance bandwidth of return loss less than −10 dB is 440 MHz (7.9%) with a centre frequency of 5.7 GHz.
S -S Zhong
exaly   +2 more sources

A strategy for accurate prediction of dielectric permittivity and dielectric strength in polyimide

open access: yesHigh Voltage
A strategy was proposed to predict accurately the dielectric permittivity and dielectric strength based on the Onsager local field theory. The molecular dynamic simulation was utilised to analyse the dipole moment fluctuation in polyimide (PI) to reflect
Yu Wang   +5 more
doaj   +2 more sources

Reconfigurable dielectric resonator antenna with multiple polarisation states

open access: yesIET Microwaves, Antennas and Propagation, 2018
The realisation of an electronically tuned polarisation reconfigurable dielectric resonator antenna with multiple switchable states is described in this study. The antenna is fed by a microstrip line through a cross‐slot aperture placed in the ground plane to achieve circular polarisation.
Sayantan Dhar   +2 more
exaly   +2 more sources

Polarisation insensitive multifunctional metasurfaces based on all-dielectric nanowaveguides

open access: yesNanoscale, 2018
Metasurfaces, two dimensional (2D) metamaterials comprised of subwavelength features, can be used to tailor the amplitude, phase and polarisation of an incident electromagnetic wave propagating at an interface.
Mehmood, Muhammad Qasim   +10 more
core   +4 more sources

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