Results 1 to 10 of about 115,063 (327)

Distortion of electric field homogeneity between two thin toroidal electrodes by a dielectric sphere [PDF]

Serbian Journal of Electrical Engineering, 2022
We assess the influence of a radius and a relative permittivity of an isotropic dielectric sphere on electric field homogeneity. The homogenous electric field is generated using two thin toroidal electrodes, charged by equal charges of opposite ...
Mančić Žaklina J., Petković Bojana R., Cvetković Zlata Ž.   +2 more
doaj   +1 more source

Permittivity of 3D-Printed Nylon Substrates with Different Infill Patterns and Densities for Design of Microwave Components

Designs, 2020
Printed circuit boards, chemical etching, and computer numerical control milling currently dominate industrial processes for manufacturing microwave components.
Hanxiong Hu, Swapnil Sinha, Nicholas Meisel, Sven G. Bilén   +3 more
doaj   +1 more source

Room temperature fabrication and post-impregnation of LMO-ST composites: Engineering and modeling of dielectric properties

Open Ceramics, 2023
In this work, the effect of changing the Li2MoO4-SrTiO3 (LMO-ST) compositional proportion (1–100 wt%) on the microstructure, dielectric properties, and relative density of LMO-ST composites fabricated at room temperature was investigated.
Nina Kuzmić, Srečo Davor Škapin, Mikko Nelo, Heli Jantunen, Matjaž Spreitzer   +4 more
doaj   +1 more source

Complex-structured 3D-printed wireframes as asteroid analogues for tomographic microwave radar measurements

Materials & Design, 2021
This study introduces a fused filament fabrication (FFF) process for manufacturing complex-structured asteroid analogue objects to be applied in tomographic microwave radar measurements and inversion studies. We describe an approach to control the volume
Liisa-Ida Sorsa, Christelle Eyraud, Alain Hérique, Mika Takala, Sampsa Pursiainen, Jean-Michel Geffrin   +5 more
doaj   +1 more source

The Effect of Interfacial Zone Due to Nanoparticle–Surfactant Interaction on Dielectric Properties of Vegetable Oil Based Nanofluids

IEEE Access, 2021
Nanoparticles are generally anti-lipophilic and have a tendency to aggregate when they are embedded in nanofluids. Thus, surfactants have a major role in achieving long term dispersion stability of nanofluids through surface modification of nanoparticles.
Rizwan A. Farade, Noor Izzri Abdul Wahab, Diaa-Eldin A. Mansour, Norhafiz B. Azis, Jasronita Bt. Jasni, Veerapandiyan Veerasamy, Arangarajan Vinayagam, Bandanawaz M. Kotiyal, T. M. Yunus Khan   +8 more
doaj   +1 more source

Dielectric properties of thin insulating layers measured by Electrostatic Force Microscopy [PDF]

, 2010
In order to measure the dielectric permittivity of thin insulting layers, we developed a method based on electrostatic force microscopy (EFM) experiments coupled with numerical simulations.
Alegría, Angel, Arinero, Richard, Colmenero, Juan, De Oteyza, Dimas G., Lévêque, Gérard, Ramonda, Michel, Riedel, Clément, Schwartz, Gustavo Ariel, Tordjeman, Philippe   +8 more
core   +4 more sources

The dielectric calibration of capacitance probes for soil hydrology using an oscillation frequency response model [PDF]

Hydrology and Earth System Sciences, 1998
Capacitance probes are a fast, safe and relatively inexpensive means of measuring the relative permittivity of soils, which can then be used to estimate soil water content.
D. A. Robinson, D. A. Robinson, C. M. K. Gardner, J. Evans, J. D. Cooper, M. G. Hodnett, J. P. Bell   +6 more
doaj  

The negative index of refraction demystified

, 2002
We study electromagnetic wave propagation in mediums in which the effective relative permittivity and the effective relative permeability are allowed to take any value in the upper half of the complex plane.
Akhlesh Lakhtakia, Lakhtakia A, Martin W McCall, Pendry J, Veselago V G, Werner S Weiglhofer   +5 more
core   +2 more sources

Characterization of CVD graphene permittivity and conductivity in micro-/millimeter wave frequency range

AIP Advances, 2016
The permittivity and conductivity of chemical vapor deposited monolayer graphene are investigated up to 40 GHz. The characterization method is based on a coplanar waveguide transmission line structure that is fabricated on a multilayer substrate of Si ...
Yunqiu Wu, Yun Wu, Kai Kang, Yuanfu Chen, Yanrong Li, Tangsheng Chen, Yuehang Xu   +6 more
doaj   +1 more source

Imaging of Microwave Permittivity, Tunability, and Damage Recovery in (Ba,Sr)TiO3 Thin Films

, 1999
We describe the use of a near-field scanning microwave microscope to quantitatively image the dielectric permittivity and tunability of thin-film dielectric samples on a length scale of 1 micron. We demonstrate this technique with permittivity images and
Anlage, Steven M., Canedy, C., Melngailis, J., Ramesh, R., Stanishevsky, A., Steinhauer, D. E., Vlahacos, C. P., Wellstood, F. C.   +7 more
core   +1 more source