Liquid-Sensing Metamaterial Ring Resonator in Millimeter-wave band for 5G Applications

Qureshi, Suhail Asghar; Abidin, Zuhairiah Zainal; Ashyap, Adel Y. I.; Dahlan, Samsul Haimi; Majid, H. A.; See, Chan Hwang

doi:10.1109/scored50371.2020.9250999

Cited by 3 publications

(3 citation statements)

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“…The human fall and emotion detection can be used for ambient assisted living, the human gait, sleep and vital sign monitoring for patient recovery or treatment, the gesture recognition for home automation to provide context-aware services, while the human activity and behavior recognition for intrusion detection. The detection of objects can be used for material identification [73], [74]. The localization and tracking of objects can be used in warehouses and see-through-walls imaging.…”

Section: E Downlink-and Uplink-based Sensingmentioning

confidence: 99%

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Radio Sensing Using 5G Signals: Concepts, State of the Art, and Challenges

Chen

Zhang

Feng

et al. 2022

IEEE Internet Things J.

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Section: E Downlink-and Uplink-based Sensingmentioning

confidence: 99%

“…KNN was used to achieve an accuracy of 98% to detect suspicious liquids, 97% to identify the type and 94% to recognize the concentration of alcohol. In [74], a liquid-sensing ring resonator was designed at 36 GHz. It measured and analyzed the dielectric constant of the liquid to identify the liquid.…”

Section: Other Applicationsmentioning

confidence: 99%

Radio Sensing Using 5G Signals: Concepts, State of the Art, and Challenges

Chen

Zhang

Feng

et al. 2022

IEEE Internet Things J.

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“…As demonstrated in the study conducted by Omer et al [ 23 ], mm-W frequencies offer enhanced sensitivity to the dielectric properties of glucose solutions. Another advantage of this frequency range is the minimal effect of temperature on blood’s dispersive characteristics [ 24 ]. Therefore, this paper presents a metamaterial-inspired sensor operating at millimetre-wave frequencies significantly sensitive to the dielectric characterisation of blood samples.…”

Section: Introductionmentioning

confidence: 99%

Glucose level detection using millimetre-wave metamaterial-inspired resonator

et al. 2022

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Millimetre-wave frequencies are promising for sensitive detection of glucose levels in the blood, where the temperature effect is insignificant. All these features provide the feasibility of continuous, portable, and accurate monitoring of glucose levels. This paper presents a metamaterial-inspired resonator comprising five split-rings to detect glucose levels at 24.9 GHz. The plexiglass case containing blood is modelled on the sensor’s surface and the structure is simulated for the glucose levels in blood from 50 mg/dl to 120 mg/dl. The novelty of the sensor is demonstrated by the capability to sense the normal glucose levels at millimetre-wave frequencies. The dielectric characteristics of the blood are modelled by using the Debye parameters. The proposed design can detect small changes in the dielectric properties of blood caused by varying glucose levels. The variation in the transmission coefficient for each glucose level tested in this study is determined by the quality factor and resonant frequency. The sensor presented can detect the change in the quality factor of transmission response up to 2.71/mg/dl. The sensor’s performance has also been tested to detect diabetic hyperosmolar syndrome. The sensor showed a linear shift in resonant frequency with the change in glucose levels, and an R2 of 0.9976 was obtained by applying regression analysis. Thus, the sensor can be used to monitor glucose in a normal range as well as at extreme levels.

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