Results 1 to 10 of about 1,598 (161)
Breaking polarisation‐bandwidth trade‐off in dielectric metasurface for unpolarised white light
Nanophotonics, 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 +2 more sources
Polarisation reconfigurable anisotropic dielectric resonator antenna
Scientific ReportsA 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 +4 more sources
Dielectric polarisation in naturally disordered trilead tetroxide Pb3O4
Physics 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
Dual-polarised dielectric resonator antenna with high isolation and low cross-polarisation
Electronics 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
Time‐domain characterisation of epoxy‐based barium titanate nanocomposites
IET Nanodielectrics, 2021 In this article, the dielectric response of epoxy resin and epoxy‐based barium titanate (BaTiO3) nanocomposites is characterised in the time‐domain, based on polarisation and depolarisation current measurements.
Romana Zafar, Nandini Gupta
doaj +1 more source
The influence of surface charge on the coalescence of ice and dust particles in the mesosphere and lower thermosphere [PDF]
Atmospheric Chemistry and Physics, 2021 Agglomeration of charged ice and dust particles in the mesosphere and lower thermosphere is studied using a classical electrostatic approach, which is extended to capture the induced polarisation of surface charge. Collision outcomes are predicted whilst
J. Baptiste +8 more
doaj +1 more source
IET Nanodielectrics, 2020 Polymer matrix composites with embedded ferroelectric and/or piezoelectric particles, constitute a novel and interesting class of engineering materials. The incorporation of ferroelectric and/or piezoelectric particles within a polymer matrix is expected
Anastasios C. Patsidis
doaj +1 more source
Design, synthesis and processing of PVDF-based dielectric polymers
IET 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 +1 more source
Dielectric relaxation in nanocomposites based on thermoplastic polyimide and carbon nanofibres
Physics of Complex Systems, 2020 The article presents the study of R-SOD 3% nanocomposite’s molecular mobility based on thermoplastic PI (R-SOD) with 3% of carbon nanofibres by dielectric method.
Хонг Тхи Дао +3 more
doaj +1 more source
A fabrication method for adaptive dielectric gradient insulating components
High Voltage, 2023 Dielectric gradient components have advantages in electric field mitigation and insulation improvement. In this paper, we propose a fabrication method for adaptive dielectric gradient components using in situ AC electric field, including the mechanism ...
Zikui Shen +4 more
doaj +1 more source