Results 21 to 30 of about 13,906 (295)

Broadband Dielectric Characterization of High-Permittivity Rogers Substrates via Terahertz Time-Domain Spectroscopy in Reflection Mode

Applied Sciences, 2022
We report the dielectric characterization of three commercially available, high-permittivity Rogers laminates in the sub-terahertz range, by means of terahertz time-domain spectroscopy measurements in reflection mode.
Walter Fuscaldo, Francesco Maita, Luca Maiolo, Romeo Beccherelli, Dimitrios C. Zografopoulos   +4 more
doaj   +1 more source

High Permeability Photosintered Strontium Ferrite Flexible Thin Films

Micromachines, 2021
The paper is focused on the development and optimization of strontium ferrite nanomaterial and photosintered flexible thin films. These magnetic thin films are characterized with direct current (DC) and high frequency measurements.
Abid Ahmad, Bhagyashree Mishra, Andrew Foley, Leslie Wood, Maggie Yihong Chen   +4 more
doaj   +1 more source

Prediction on the relative permittivity of energy storage composite dielectrics using convolutional neural networks: A fast and accurate alternative to finite-element method

iEnergy, 2022
The relative permittivity is one of the essential parameters determines the physical polarization behaviors of the nanocomposite dielectrics in many applications, particularly for capacitive energy storage.
Shao-Long Zhong, Di-Fan Liu, Lei Huang, Yong-Xin Zhang, Qi Dong, Zhi-Min Dang   +5 more
doaj   +1 more source

Dielectric characterization of vegetation at L band using an open-ended coaxial probe [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2018
Decoupling the integrated microwave signal originating from soil and vegetation remains a challenge for all microwave remote sensing applications. To improve satellite and airborne microwave data products in forest environments, a precise and reliable
A. Mavrovic, A. Mavrovic, A. Roy, A. Roy, A. Roy, A. Roy, A. Royer, A. Royer, B. Filali, F. Boone, C. Pappas, C. Pappas, O. Sonnentag, O. Sonnentag   +13 more
doaj   +1 more source

Dielectric Properties of Textile Materials: Analytical Approximations and Experimental Measurements—A Review

Textiles, 2022
Deciphering how the dielectric properties of textile materials are orchestrated by their internal components has far-reaching implications. For the development of textile-based electronics, which have gained ever-increasing attention for their uniquely ...
Yusuke Yamada
doaj   +1 more source

A new method for measuring complex relative permittivity of dielectric material by reflection method

Journal of Physics: Conference Series, 2021
Abstract In this paper, a new lossless free space method for measuring the complex relative permittivity of dielectric material by reflection method is presented. When this method is used to measure the complex relative permittivity of dielectric material, there is no multi-value problem.
Yao Qin, Bin Wei, Shuo Liu, Mingxing Li, Chengxin Cai, Tiangang Hou   +5 more
openaire   +1 more source

ONE-DIMENSIONAL INVERSE PROBLEMS OF ELECTROMAGNETIC PROBING STRATIFIED DIELECTRIC MEDIA [PDF]

Радиофизика и электроника, 2015
The problem of permittivity profile reconstruction from reflection coefficient data for a stratified dielectric medium illuminated with a probing plane electromagnetic wave at a finite set of frequencies is considered to deal with a topical problem in ...
A. V. Brovenko, A. A. Vertii, N. P. Melezhik, P. N. Melezhik, A. Ye. Poyedinchuk   +4 more
doaj   +1 more source

Tree Roots Reconstruction Framework for Accurate Positioning in Heterogeneous Soil

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Ground-penetrating radar has recently found wide application in the underground imaging of tree roots. However, ignoring the random and complex nature of the heterogeneous soil and assuming the soil's relative permittivity constant throughout the ...
Wenhao Luo, Yee Hui Lee, Hai-Han Sun, Genevieve Ow, Mohamed Lokman Mohd Yusof, Abdulkadir C. Yucel   +5 more
doaj   +1 more source

Microwave processing and permittivity measurement of thermoplastic composites at elevated temperature [PDF]

, 1999
[Abstract]: The material properties of greatest importance in microwave processing of a dielectric are the complex relative permittivity ε = ε′- jε″, and the loss tangent, tan δ = ε″/ ε′.
Siores, Elias, Horsfield, Brendan, E Siores, H.S Ku, Ball, James A. R., B Horsfield, Ku, Harry S., J.A.R Ball   +7 more
core   +1 more source

Microwave dielectric properties of horticultural peat products [PDF]

Mires and Peat, 2007
The microwave dielectric properties of horticultural peat and compost peat were measured with a HP85107C network analyser in conjunction with a HP85070B open-ended coaxial dielectric probe for the frequency range 0.5–20 GHz.
G. Ayalew, N.M. Holden, S.M. Ward
doaj