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Microwave Sensors and Their Applications in Permittivity Measurement [PDF]
SensorsThis paper reviews microwave sensors and their applications in permittivity measurement. The detection, diagnosis, classification, and monitoring without contact and invasion have been the subject of numerous studies based on permittivity characteristics
Changjun Liu +5 more
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Design of a Microwave Heating and Permittivity Measurement System Based on Oblique Aperture Ridge Waveguide [PDF]
Sensors, 2023 In this paper, an oblique aperture ridge waveguide operating at 2450 MHz is proposed, and, using the ridge waveguide, a permittivity measurement system is constructed which can measure the permittivity of materials during microwave heating.
Mingyi Gou +4 more
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Meander-Line Slot-Loaded High-Sensitivity Microstrip Patch Sensor Antenna for Relative Permittivity Measurement [PDF]
Sensors, 2019 A high-sensitivity microstrip patch sensor antenna (MPSA) loaded with a meander-line slot (MLS) is proposed for the measurement of relative permittivity. The proposed MPSA was designed by etching the MLS along the radiating edge of the patch antenna, and
Junho Yeo, Jong-Ig Lee
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An Overmoded-Waveguide-Based Permittivity Measurement Method with High Accuracy and Ultra-Broadband over 8–110 GHz [PDF]
MicromachinesAn overmoded-waveguide-based kit operating in 8–110 GHz for material complex permittivity measurement is proposed and designed in this paper. It overcomes the significant errors caused by air gaps in the conventional standard waveguide method (SWM ...
Weijie Wang +8 more
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New Measurement Technique for Complex Permittivity in Millimeter-Wave Band Using Simple Rectangular Waveguide Adapters [PDF]
Journal 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
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Remote Sensing, 2023 Ground-penetrating radar (GPR) has been widely used in estimating the permittivity of mediums. The radar echo amplitude method is an important method used by GPR in this estimation, the basic step of which is to deduce the magnitude of the permittivity ...
Xu Li +5 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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Remote Sensing, 2021 Estimating the permittivity of heterogeneous mixtures based on the permittivity of their components is of high importance with many applications in ground penetrating radar (GPR) and in electrodynamics-based sensing in general.
Hossain Zadhoush +2 more
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Scientific Reports, 2022 Application of minimally invasive methods to enable the measurement of tissue permittivity in the neuromuscular clinic remain elusive. This paper provides a theoretical and modeling study on the measurement of the permittivity of two-dimensional ...
Hyeuknam Kwon +4 more
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An Analysis of Open-Ended Coaxial Probe Sensitivity to Heterogeneous Media
Sensors, 2020 Open-ended coaxial probe spectroscopy is commonly used to determine the dielectric permittivity of biological tissues. However, heterogeneities in the probe sensing region can limit measurement precision and reproducibility.
Christopher L. Brace, Sevde Etoz
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