Results 11 to 20 of about 13,906 (295)
A New Planar Microwave Sensor for Building Materials Complex Permittivity Characterization
Sensors, 2020 A new microwave sensor is proposed to characterize the complex relative permittivity of building non-magnetic materials and used in the characterization of three concrete samples.
João G. D. Oliveira +4 more
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Научный вестник МГТУ ГА, 2019 When using remote radiophysical methods in problems of monitoring the environment, the central place belongs to solving problems of determining its electrophysical characteristics, i.e. dielectric permittivity e, conductivity c (complex permittivity ek).
L. Р. Ligthart +3 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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AIP Advances, 2016 The permittivity and conductivity of chemical vapor deposited monolayer graphene are investigated up to 40 GHz. The characterization method is based on a coplanar waveguide transmission line structure that is fabricated on a multilayer substrate of Si ...
Yunqiu Wu +6 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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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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Complex permeability and permittivity variation of radar absorbing materials based on MnZn ferrite in microwave frequencies [PDF]
Materials Research, 2013 The complex dielectric permittivity (ε) and magnetic permeability (µ) of Radar Absorbing Materials (RAM) based on magnetic particles (MnZn ferrite particles) embedded in a dielectric matrix (silicon rubber) have been studied in the frequency range of 2 ...
Adriana Medeiros Gama +1 more
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Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz [PDF]
Journal of Aerospace Technology and Management, 2010 The complex dielectric permittivity (e) and magnetic permeability (m) of Radar Absorbing Materials (RAM) based on metallic magnetic particles (carbonyl iron particles) embedded in a dielectric matrix (silicon rubber) have been studied in the frequency ...
Adriana Medeiros Gama +1 more
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Microfluidic Microwave Sensor Loaded with Star-Slotted Patch for Edible Oil Quality Inspection
Sensors, 2022 In this paper, we present a new microfluidic microwave sensor loaded with a star-slotted patch for detecting the quality of edible oil. The relative dielectric permittivity and the quality of edible oil will change after being heated at a high ...
Xueyun Han +6 more
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IEEE Access, 2022 It is crucial to know the permittivity of dielectric materials used in radio frequency (RF) components and devices because their operation frequency and loss characteristics are significantly affected by the permittivity.
Lihour Nov, Jae-Young Chung, James Park
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