Results 11 to 20 of about 6,016,080 (298)

Measurement of Complex Permittivity in Free Space [PDF]

open access: yesProcedia Engineering, 2015
AbstractThe paper describes the measurement of complex permittivity in free space. It is an advanced non-contact method which is used to find the electromagnetic properties of materials. In this case it involves the materials which are used in aviation technology, especially for hardening the avionics against electromagnetic interference. A specialized
Skočík, Petr, Neumann, Petr
core   +4 more sources

Complex Permittivity Measurement System for Solid Materials Using Complementary Frequency Selective Surfaces [PDF]

open access: yesIEEE Access, 2020
This paper describes a novel method of characterizing complex permittivity using a complementary frequency selective surface (CFSS). The CFSS provides a passband behavior and the change in the passband when a material under test (MUT) is placed adjacent ...
Chih-Kuo Lee   +5 more
doaj   +4 more sources

Microwave Complex Permittivity of Yttria-Stabilized Zirconia

open access: yesIEEE Open Journal of Instrumentation and Measurement, 2023
The complex permittivity of 8-mol yttria-stabilized zirconia (8-YSZ) in powder and sintered (i.e., solid) forms were measured from 32 to 40 GHz using a circular waveguide probe.
Anna Case, Aaron Barvincak, Reza Zoughi
doaj   +2 more sources

Broadband Measurement of Complex Permittivity Using Reflection Method and Coaxial Probes

open access: yesRadioengineering, 2008
This paper describes and evaluates a method for determining complex permittivity, and presents results of permittivity measurement of some substances.
R. Zajicek, L. Oppl, J. Vrba
doaj   +1 more source

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   +1 more source

Electrical characteristics of pure and contaminated latex serum [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2018
This paper presents electrical characteristics of pure latex serum and latex serum contaminated with cassava and calcium carbonate (CaCo3). The pure serum sample was prepared by centrifuging field latex samples where the contaminated samples were ...
Huda Kosumphan   +2 more
doaj   +1 more source

An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice

open access: yesSensors, 2019
In this paper, the theory behind the design of a microwave sensor for the accurate measurement of firn complex permittivity is presented. This class of microwave sensors, based on the open-coaxial re-entrant cavity method, is specifically designed to ...
Roberto Olmi   +3 more
doaj   +1 more source

Dielectric Measurement of Agricultural Grain Moisture—Theory and Applications

open access: yesSensors, 2022
Moisture content is a critical variable for the harvesting, processing, storing and marketing of cereal grains, oilseeds and legumes. Efficient and accurate determination of grain moisture content even with advanced nondestructive techniques, remains a ...
Scott B. Jones, Wenyi Sheng, Dani Or
doaj   +1 more source

The Role of Probe Attenuation in the Time-Domain Reflectometry Characterization of Dielectrics [PDF]

open access: yes, 2010
The influence of the measurement setup on the estimation of dielectric permittivity spectra from time-domain reflectometry (TDR) responses is investigated.
Ferraris, S.   +6 more
core   +1 more source

The Microwave properties of tissue and other lossy dielectrics [PDF]

open access: yes, 2004
This thesis describes work on the theoretical modelling and experimental measurement of the complex permittivity of dielectrics. The main focus of research has been into the characterisation of permittivity of planar and layered samples within the ...
Alabaster, Clive M.
core   +2 more sources

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