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Complex Relative Permittivity Measurement Techniques [PDF]

open access: yesWarasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham, 2019
This article presents a review of the techniques for measuring complex relative permittivity and also explains basic properties for understanding the principle of complex relative permittivity measurement.
Nawarat Piladaeng
doaj   +1 more source

Contactless Microwave-Based Estimation of Complex Permittivity of Masonry Materials: A Frequency-Domain Approach [PDF]

open access: yesSensors
This article concerns the issue of contactless estimation of the complex electrical permittivity of masonry materials by means of a microwave technique in the frequency domain.
Zenon Szczepaniak   +4 more
doaj   +2 more sources

Determination of Complex Permittivity of Low-Loss Materials From Reference-Plane Invariant Transmission/Reflection Measurements

open access: yesIEEE Access, 2019
In this paper, a novel method is proposed to determine unique and stable relative complex permittivity of low-loss materials from the transmission/reflection (TR) measurements, though the positions of the materials under test are unknown.
Chuang Yang, Hui Huang
doaj   +3 more sources

A New Approach to Estimate the Complex Relative Permittivity of Materials Based on Free-Space Reflection Method

open access: yesAdvanced Electromagnetics, 2020
A microwave free-space reflection method for determining the complex permittivity of planar materials is demonstrated. Improved the MUltiple SIgnal Classification (MUSIC) algorithm to estimate the complex relative permittivity of material based on the ...
L. C. Nguyen, M. C. Ho, T.-H. Le
doaj   +3 more sources

Probes in transmission with material variable thicknesses to extract the material complex relative permittivity in 1.7–3 GHz

open access: yesMeasurement: Sensors, 2022
A significant investigation on the use of two probes in the transmission is presented in this paper. As a transmission-line technique, those two probes separated with a variable thickness of the sample under test to determine the material dielectric ...
Josué Éric Delfort M'Pemba   +3 more
doaj   +2 more sources

Dynamic Measurement of Relative Complex Permittivity of Microwave Plasma at Atmospheric Pressure [PDF]

open access: yesProcesses, 2021
Complex permittivity is one of the most important parameters to characterize the interaction between microwave and medium, especially for microwave-excited plasma. It is convenient to study plasma’s dielectric properties and microwave propagation characteristics by measuring its complex permittivity.
Ge Wang   +6 more
openaire   +1 more source

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

Multiphase Dielectric Mixing Model for Concrete Mixtures

open access: yesIEEE Access, 2023
The advancement of high-power microwave technology has indeed brought about the possibility of E-bombs, also known as electromagnetic pulse (EMP) bombs.
Shereen Farhana   +2 more
doaj   +1 more source

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

open access: yesMaterials & 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   +5 more
doaj   +1 more source

Dielectric Properties of Hydrothermally Modified Potato, Corn, and Rice Starch

open access: yesAgriculture, 2022
The effect of starch granule sizes, shapes, composition, and frequency on the dielectric properties (dielectric constant, loss factor, and conductivity) of native and hydrothermally modified starches (potato, corn, and rice starch) are investigated in ...
Chong You Beh   +7 more
doaj   +1 more source

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