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A Novel Metamaterial Inspired High-Temperature Microwave Sensor in Harsh Environments
Fengxiang Lu1,2, Qiulin Tan3,4, Yaohui Ji5,6
1Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China. peaceliveluna@163.com.
Sensors (Basel, Switzerland)
|September 12, 2018
Summary
This study presents a novel wireless passive high-temperature sensor utilizing metamaterial. The sensor demonstrates reliable performance up to 1100°C, offering a sensitive solution for extreme environments.
Area of Science:
- Materials Science
- Electrical Engineering
- Electromagnetics
Background:
- Wireless passive sensing offers advantages in harsh environments.
- Metamaterials enable novel electromagnetic device designs.
- High-temperature sensing is crucial for industrial applications.
Purpose of the Study:
- To propose and validate a wireless passive high-temperature sensor.
- To leverage metamaterial properties for temperature sensing.
- To explore applications in chipless radio frequency identification (RFID) tags.
Main Methods:
- Finite-element method (FEM) modeling using High-Frequency Structure Simulator (HFSS).
- Design and fabrication of a double split-ring resonator (SRR) on alumina ceramic.
- Electromagnetic backscatter principle for wireless sensing.
Main Results:
- The sensor exhibited a resonant frequency shift from 2.417 GHz to 2.320 GHz for temperatures ranging from 28°C to 1100°C.
- Achieved an average sensitivity of 95.63 kHz/°C.
- Demonstrated potential for chipless RFID tag applications.
Conclusions:
- The proposed metamaterial sensor is effective for high-temperature wireless passive sensing.
- The design is easily scalable and manufacturable, including via 3D printing.
- Potential applications span aerospace, military, manufacturing, and transportation sectors.
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