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Microwave Sensors and Their Applications in Permittivity Measurement [PDF]

Sensors
This 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, Chongwei Liao, Yujie Peng, Weixin Zhang, Bo Wu, Peixiang Yang   +5 more
doaj   +5 more sources

Non-resonant Permittivity Measurement Methods [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2017
The measurement of the dielectric properties of materials has been applied in non-destructive tests, humidity measurement, soil analysis and even cancer detection.
Sergio L. S. Severo, Álvaro A. A. de Salles, Bruno Nervis, Braian K. Zanini   +3 more
doaj   +6 more sources

A Dielectric Loaded Resonator for the Measurement of the Complex Permittivity of Dielectric Substrates [PDF]

IEEE Transactions on Instrumentation and Measurement, 2023
A new configuration of dielectric-loaded resonator (DR), particularly versatile for the complex permittivity measurement of substrates for microwave circuits, even in the presence of back metal plates, is shown here.
Andrea Alimenti, Erika Pittella, Kostiantyn Torokhtii   +2 more
exaly   +4 more sources

Design of a Planar Sensor Based on Split-Ring Resonators for Non-Invasive Permittivity Measurement. [PDF]

Sensors (Basel), 2023
The permittivity of a material is an important parameter to characterize the degree of polarization of a material and identify components and impurities. This paper presents a non-invasive measurement technique to characterize materials in terms of their
Alibakhshikenari M, Virdee BS, Elwi TA, Lubangakene ID, Lubangakene ID, Jayanthi RKR, Al-Behadili AA, Hassain ZAA, Ali SM, Pau G, Livreri P, Aïssa S.   +11 more
europepmc   +2 more sources

Dielectric Permittivity Measurement Using Open-Ended Coaxial Probe-Modeling and Simulation Based on the Simple Capacitive-Load Model. [PDF]

Sensors (Basel), 2022
The study aim was to validate that dielectric permittivity measurement using the open-ended coaxial probe can be reliably modeled using electromagnetic modeling and simulations, followed by the postprocessing calculations based on the simple capacitive ...
Šarolić A, Matković A.
europepmc   +2 more sources

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, Qian Chen, Penghao Dong, Changjun Liu, Kama Huang   +4 more
doaj   +2 more sources

A High-Sensitivity Microfluidic Sensor Based on a Substrate Integrated Waveguide Re-Entrant Cavity for Complex Permittivity Measurement of Liquids. [PDF]

Sensors (Basel), 2018
In this study, a novel non-invasive and contactless microwave sensor using a square substrate integrated waveguide (SIW) re-entrant cavity is proposed for complex permittivity measurement of chemical solutions.
Wei Z, Huang J, Li J, Xu G, Ju Z, Liu X, Ni X.   +6 more
europepmc   +2 more sources

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
doaj   +2 more sources

An Overmoded-Waveguide-Based Permittivity Measurement Method with High Accuracy and Ultra-Broadband over 8–110 GHz [PDF]

Micromachines
An 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, Yingjian Cao, Tieyang Wang, Fangfang Song, Shuanzhu Fang, Xianfeng Tang, Xiangqiang Li, Guoxiang Shu, Guo Liu   +8 more
doaj   +2 more sources

Permittivity Measurement of Thermoplastic Composites at Elevated Temperature [PDF]

Journal of Microwave Power and Electromagnetic Energy, 2001
The material properties of greatest importance in microwave processing of a dielectric are the complex relative permittivity epsilon = epsilon'-jepsilon", and the loss tangent, tan delta = epsilon"/epsilon'. This paper describes two convenient laboratory based methods to obtain epsilon', epsilon" and hence tan delta of fibre-reinforced thermoplastic ...
Ku, Harry S., Horsfield, Brendan, Ball, James A. R., Siores, Elias   +3 more
openaire   +3 more sources