Results 1 to 10 of about 315,046 (231)
Advanced 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
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Measurement: 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
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Extraction of the Complex Relative Permittivity from the Characteristic Impedance of Transmission Line by Resolving Discontinuities [PDF]
Electronics, 2022 This paper describes a material complex permittivity extraction technique based on four measurements of two identical coaxial (circular and rectangular) lines, distinguished by their lengths. The paper presents a combination of propagation parameters through mixing the eigenvalue principle and the lines’ characteristic impedance to improve the ...
Franck Moukanda Mbango +2 more
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Dynamic Measurement of Relative Complex Permittivity of Microwave Plasma at Atmospheric Pressure [PDF]
Processes, 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
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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.
Mingxing Li +5 more
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Complex Relative Permittivity Extraction Technique of Biotechnology Materials in Microwaves Domain
International Journal of Electronics, Communication & Instrumentation Engineering Research and Development, 2019 We have established a test fixture and procedure to extract dielectric complex permittivity for biotechnology materials, especially those used in medical (human tissue and liquid 900MHz), environmental domains (i. e., raffia palm trees, spring water) and
F. M. M. E. A. F. Moukanda Mbango et al.,
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Complex Relative Permittivity Measurement Techniques [PDF]
Warasan 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
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, 2021 After a thorough investigation, this paper introduces a novel and simple radiofrequency material characterization technique. For this study’s purposes, two probes were developed and separated by the sample under test (SUT) with an inhomogeneous test cell.
F. M. Mbango +2 more
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Measured relative complex permittivities for multiple series of ionic liquids
Journal of Molecular Liquids, 2019 Abstract Presented in this paper are experimentally measured relative complex permittivities as a function of frequency for a representative range of ionic liquids, comprising 64 imidazolium, choline, phosphonium, ammonium, pyrrolidinium, pyridinium and piperidinium cations with a variety of anions. The measurement was conducted using a coaxial probe
Elliot L. Bennett +3 more
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Micromachines, 2023 Substrate-integrated waveguides (SIWs) are widely used in microwave systems owing to their low cost and ease of integration. In this study, an SIW-based resonator that reacts to the complex permittivity variation of solutions with dimensions of 79.2 mm ×
Chun-He Quan +2 more
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