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Volume 13
Issue 7
10.3390/coatings13071213
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Article

Design of Metamaterial-Inspired High-Temperature Microwave Sensor on Alumina Ceramics

by
Bo Wang
*,
Bei Han
,
Youwei Li
,
Fei Gao
,
Chaohui Chen
,
Junqiang He
and
Ke Wang
School of Automation, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
*
Author to whom correspondence should be addressed.
Coatings 2023, 13(7), 1213; https://doi.org/10.3390/coatings13071213
Submission received: 2 June 2023 / Revised: 1 July 2023 / Accepted: 3 July 2023 / Published: 6 July 2023
(This article belongs to the Special Issue Intermetallic Alloys and Intermetallic Matrix Composite Coatings)
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Abstract

The issues of high costs and sophisticated circuit structures limit applicability of traditional chipped sensors. This paper innovatively designs a chipless sensor based on the split-ring resonator combined with temperature-sensitive material as the substrate. The alumina ceramics are used as the sensitive material for reflecting the environment temperature in accordance with its characteristic that its dielectric constant increases monotonically with rising temperature. The simulation demonstrates that the resonant frequency of the sensor monotonically decreases from 8.58 GHz to 8.22 GHz with an offset of 0.36 GHz and a sensitivity of 0.9 MHz/°C for a variation from 500 °C and 900 °C. The sensor designed in this paper has good resonance characteristics, is wireless, passive, and low cost, has a planar structure, and is suitable for various harsh environments.
Keywords: chipless temperature sensor; split-ring resonator; alumina ceramics chipless temperature sensor; split-ring resonator; alumina ceramics

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MDPI and ACS Style

Wang, B.; Han, B.; Li, Y.; Gao, F.; Chen, C.; He, J.; Wang, K. Design of Metamaterial-Inspired High-Temperature Microwave Sensor on Alumina Ceramics. Coatings 2023, 13, 1213. https://doi.org/10.3390/coatings13071213

AMA Style

Wang B, Han B, Li Y, Gao F, Chen C, He J, Wang K. Design of Metamaterial-Inspired High-Temperature Microwave Sensor on Alumina Ceramics. Coatings. 2023; 13(7):1213. https://doi.org/10.3390/coatings13071213

Chicago/Turabian Style

Wang, Bo, Bei Han, Youwei Li, Fei Gao, Chaohui Chen, Junqiang He, and Ke Wang. 2023. "Design of Metamaterial-Inspired High-Temperature Microwave Sensor on Alumina Ceramics" Coatings 13, no. 7: 1213. https://doi.org/10.3390/coatings13071213

APA Style

Wang, B., Han, B., Li, Y., Gao, F., Chen, C., He, J., & Wang, K. (2023). Design of Metamaterial-Inspired High-Temperature Microwave Sensor on Alumina Ceramics. Coatings, 13(7), 1213. https://doi.org/10.3390/coatings13071213

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