Results 11 to 20 of about 2,247,954 (292)

Measurement of relative permittivity of LTCC ceramic at different temperatures

open access: yesAIP Advances, 2014
Devices based on LTCC (low-temperature co-fired ceramic) technology are more widely applied in high temperature environments, and the temperature-dependent properties of the LTCC material play an important role in measurements of the characteristics of ...
Qiulin Tan   +8 more
doaj   +2 more sources

Non-linear inversion for relative permittivity

open access: yes, 2009
The gradient method, Levenberg-Marquardt (LM) method, L₂ cooled roughness (CRL2) method and L₁ cooled roughness (CRL1) method are applied to the problem of recovering the relative permittivity structure of a dielectric object. The CRL1 method is a novel technique for the recovery of the relative permittivity structure of a dielectric object introduced ...
Lam, Kim
core   +3 more sources

Deep-Learning-Based Method for Estimating Permittivity of Ground-Penetrating Radar Targets

open access: yesRemote Sensing, 2022
Correctly estimating the relative permittivity of buried targets is crucial for accurately determining the target type, geometric size, and reconstruction of shallow surface geological structures.
Hui Wang   +4 more
doaj   +1 more source

The Impact of Atmospheric Parameters on the Dielectric Permittivity Values of SikaBlock®-M150 and Other Rigid Polyurethane Foams Measured with a Capacitive One-Side Access Sensor

open access: yesSensors, 2022
A shortage of research on the impact of atmospheric parameters on the measured dielectric permittivity values of rigid polyurethane (PU) foams was identified.
Ilze Beverte   +3 more
doaj   +1 more source

Development of the epoxy composite complex permittivity and its application in wind turbine blades [PDF]

open access: yes, 2010
PhDOffshore wind farm structures may have the potential to affect marine navigation and communication systems by reflecting radar signals. With ever increasing size of wind turbines it is necessary to better understand the influence of radar signals on
Hu, Dawei
core   +2 more sources

Numerical investigation on compact multimode dielectric resonator antennas of very high permittivity [PDF]

open access: yes, 2008
Two well known numerical techniques, the Finite Element Method (FEM) and the Finite Integration in Time Domain (FIT), have been applied to study a low volume high permittivity dielectric resonator antenna.
Rotaru, M., Sykulski, J. K.
core   +2 more sources

Design and Fabrication of Modified SMA-Connector Sensor for Detecting Water Adulteration in Honey and Natural Latex

open access: yesApplied System Innovation, 2021
A detection system for water adulteration in honey is proposed. It consists of a modified SMA-connector sensor and a vector network analyzer. A modified SMA-connector sensor is applied to measure complex relative permittivity, electrical conductivity ...
Adisorn Nuan-On   +3 more
doaj   +1 more source

Seasonal Variation and Age-related Changes in the Relative Permittivity of Concrete Bridge Decks on Korea Expressways

open access: yesInternational Journal of Concrete Structures and Materials, 2018
The purposes of this study were to investigate the seasonal variations in the relative permittivity of actual concrete bridge decks of various ages on Korea expressways, and to propose a practical way to calibrate two critical effects, to assess the ...
Ji-Young Rhee   +3 more
doaj   +1 more source

STUDY OF NEGATIVE REFRACTIVE INDEX IN Rb FOUR-LEVEL N-TYPE ATOMIC GAS MEDIUM

open access: yesTạp chí Khoa học Đại học Đà Lạt, 2022
In this work, we study the generation of a negative refractive index based on electromagnetically induced transparency (EIT) in a Rb four-level N-type atomic gas medium.
Huy Bang Nguyen   +4 more
doaj   +1 more source

Determination of the Permittivity of Transmission Lines at Milli-Kelvin Temperatures

open access: yesIEEE Access, 2023
Many quantum technologies rely heavily on propagation of RF and microwave signals through devices at cryogenic temperatures, and detailed understanding of materials and signal propagation is therefore key to improving the performance of quantum circuits.
Manoj Stanley   +6 more
doaj   +1 more source

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