Results 11 to 20 of about 114,262 (333)

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

open access: diamondAdvanced 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

Conductivity and permittivity of dispersed systems with penetrable particle-host interphase [PDF]

open access: yesCondensed Matter Physics, 2013
A model for the study of the effective quasistatic conductivity and permittivity of dispersed systems with particle-host interphase, within which many-particle polarization and correlation contributions are effectively incorporated, is presented.
M.Ya. Sushko, A.K. Semenov
doaj   +4 more sources

Simplified Complex Permittivity Measurement of Dielectric Materials Using a Compact Waveguide and a Machine Learning Technique [PDF]

open access: diamondJournal of Electromagnetic Engineering and Science
The Nicolson–Ross–Weir (NRW) algorithm is widely used to extract the complex permittivity of dielectric materials. Conventional NRW-based setups typically require machining dielectrics to fit waveguide apertures and to achieve precise adjustment across ...
Min-Seok Park   +3 more
doaj   +2 more sources

High-Sensitivity Differential Sensor for Characterizing Complex Permittivity of Liquids Based on LC Resonators [PDF]

open access: yesSensors
This paper proposes a high-sensitivity microstrip differential sensor for measuring the complex permittivity of liquids. The prototype of the differential sensor was formed by cascading two LC resonators on a microstrip transmission line based on stepped
Zhongjun Li   +5 more
doaj   +2 more sources

Complex permittivity measurements of lunar samples at microwave and millimeter wavelengths [PDF]

open access: green, 1972
The relative dielectric constant and loss tangent of lunar sample 14163,164 (fine dust) were determined as a function of density at 9.375, 24, 35, and 60 GHz.
Bassett, H. L., Shackelford, R. G.
core   +2 more sources

Complex Permittivity Measurements of Film-Type Materials: Effect of the Waveguide Flange

open access: goldIEEE Access
The flexibility and thinness of most film-type materials make it difficult to use conventional measurement methods such as those in international or organizational standards to accurately measure the complex permittivity of these materials.
Han-Hee Lee   +2 more
doaj   +2 more sources

Complex permittivity of FeSiAl/Al2O3 ceramic composite at X-band frequencies [PDF]

open access: yesE3S Web of Conferences, 2021
The objective of this paper is to extract and study the complex permittivity of the FeSiAl/Al2O3 ceramic composite at X-band frequencies. We studied by simulation the complex permittivity of four composites with FeSiAl content varying from 0% to 15% by ...
Ouhassan Youssef   +2 more
doaj   +1 more source

New Measurement Technique for Complex Permittivity in Millimeter-Wave Band Using Simple Rectangular Waveguide Adapters [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
This research presents a novel methodology for measuring the complex permittivity of a material under test (MUT) in a millimeter-wave (mmWave) band by using two rectangular waveguide adapters. Contrary to the conventional Nicolson-Ross-Weir (NRW) method,
Min-Seok Park   +4 more
doaj   +1 more source

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