Results 11 to 20 of about 11,398 (263)
A Derivative Approach to Permittivity Extraction from Free-Space S-Parameters Measurements [PDF]
SensorsThe contactless characterization of dielectric materials at microwave frequencies in terms of permittivity is a long-standing need in materials science and electromagnetic engineering, and free-space techniques are attractive because they require no ...
Giancarlo Bartolucci +3 more
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Electrical characteristics of pure and contaminated latex serum [PDF]
Songklanakarin 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
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Measurement of Complex Permittivity in Free Space
Procedia 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
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An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice
Sensors, 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
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Dielectric Measurement of Agricultural Grain Moisture—Theory and Applications
Sensors, 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
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Microwave Complex Permittivity of Yttria-Stabilized Zirconia
IEEE 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
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Broadband Measurement of Substrate Complex Permittivity Using Optimized ABCD Matrix
IEEE Access, 2020 In this paper, a novel two-transmission-line method based on optimized ABCD matrix for broadband and continuous substrate dielectric characterization is presented.
Longzhu Cai, Zhi Hao Jiang, Wei Hong
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Scientific Reports, 2023 Microwaves (MWs) are an emerging technology for intensified and electrified chemical manufacturing. MW heating is intimately linked to a material’s dielectric permittivity.
Montgomery Baker-Fales +3 more
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Broadband measurement of high permittivity at millimetre‐wave frequencies
Electronics Letters, 2016 In this Letter, a method for the broadband measurement of complex permittivity using a quasi‐optical technique is presented. After calibration of the quasi‐optical system, the material under test is inserted into the system and S‐parameters are measured ...
Y.‐P. Hong, M.J. Salter, D.‐J. Lee
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Precise measurement of complex permittivity of materials for telecommunications devices
Journal of Telecommunications and Information Technology, 2001 In order to obtain precise complex permittivity of the dielectric materials obtained from the perturbation method a correction curve is made using the electromagnetic field simulator which applies transmission line modeling (TLM) method.
Takayuki Nakamura, Yoshio Nikawa
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