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Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

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Wireless High Temperature Sensing Chipless Tag Based on a Diamond Ring Resonator.

Bo Wang^1,2, Youwei Li¹, Tingting Gu²

¹School of Automation, Xi'an University of Posts and Telecommunications, Xi'an 710121, China.

|July 8, 2023

Summary

This study introduces a passive wireless sensor for high-temperature monitoring. The novel alumina ceramic sensor accurately measures temperatures from 200-1000°C by tracking resonant frequency shifts.

Keywords:

alumina ceramic double diamond split rings resonator high sensitivity high temperature sensor passive wireless

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Area of Science:

Materials Science
Electrical Engineering
Sensor Technology

Background:

High-temperature environments require robust real-time monitoring solutions.
Existing sensors may face limitations in accuracy, cost, or operating range.

Purpose of the Study:

To design and simulate a passive wireless sensor for high-temperature monitoring.
To utilize the temperature-dependent permittivity of alumina ceramic for sensing.

Main Methods:

A double diamond split rings resonant structure was designed.
An alumina ceramic substrate was employed as the temperature-sensing material.
The relationship between permittivity, resonant frequency, and temperature was analyzed.

Main Results:

The sensor demonstrated a monitoring range of 200-1000°C.
A sensitivity of 0.375 MHz/°C was achieved with a quasi-linear response.
The resonant frequency shifted by 300 MHz across the temperature range (6.79-6.49 GHz).

Conclusions:

The developed sensor offers a wide temperature range and good sensitivity for high-temperature applications.
The sensor exhibits advantages such as low cost and small size.
Real-time temperature measurement is feasible by monitoring the sensor's resonant frequency.