Wireless Passive Microwave Antenna-Integrated Temperature Sensor Based on CSRR

Abstract

A novel, wireless, passive substrate-integrated waveguide (SIW) temperature sensor based on a complementary split-ring resonator (CSRR) is presented for ultra-high-temperature applications. The temperature sensor model was established by using the software of HFSS (ANSYS, Canonsburg, PA, USA) to optimize the performance. This sensor can monitor temperature wirelessly using the microwave backscatter principle, which uses a robust high-temperature co-fired ceramic (HTCC) as the substrate for harsh environments. The results are experimentally verified by measuring the S (1,1) parameter of the interrogator antenna without contact. The resonant frequency of the sensor decreases with the increasing temperature using the dielectric perturbation method, which changes from 2.5808 to 2.35941 GHz as the temperature increases from 25 to 1200 °C. The sensitivity of the sensor is 126.74 kHz/°C in the range of 25–400 °C and 217.33 kHz/°C in the range of 400–1200 °C. The sensor described in this study has the advantages of simple structure, higher quality and sensitivity, and lower environmental interference, and has the potential for utilization in multi-site temperature testing or multi-parameter testing (temperature, pressure, gas) in high-temperature environments.

Advancements in Passive Wireless Sensors, Materials, Devices, and Applications

“…Through the optimization of sensing techniques and leveraging the microwave backscattering principle, this sensor enables multi-point temperature testing in high-temperature environments, as depicted in Figure 9. Additionally, it allows for multi-parameter testing capabilities [115].…”

“…Through the optimization of sensing techniques and leveraging the mic wave backscattering principle, this sensor enables multi-point temperature testing high-temperature environments, as depicted in Figure 9. Additionally, it allows for mu parameter testing capabilities [115]. The third part first introduces methods to improve the efficiency and robustness the information transmission of sensors such as resonant circuit sensors, RFID senso and SAW sensors, and then proposes updates on readers and peripheral devices, wh all provide great contributions to information transmission.…”

Flexible Symmetric-Defection Antenna with Bending and Thermal Insensitivity for Miniaturized UAV

“…In addition, especially for long-term flight unmanned aerial vehicles (UAVs), ohm loss from inertial electrical components always causes some thermal interference, further weakening the antenna impedance matching [ 28 ]. Previous studies have verified the resonant frequency or working bandwidth shifts or mismatches with varying temperatures owing to the thermal sensitivity of the substrate [ 29 , 30 , 31 , 32 , 33 , 34 ]. For example, Tchafa et al proposed a Rogers RT/duroid 5880-based copper antenna with 40.5 ppm/°C frequency changes in TM 001 mode [ 35 ] and Xu et al used a CNT-based gas-permeable and resilient bowtie antenna to achieve 0.54 MHz/°C thermal sensitivity [ 36 ].…”

Microwave Resonant Sensor Based on MCSRR Research

“…The above features significantly reduce the measurement cost of microwave resonant sensors, and the requirements for the measurement environment are significantly reduced. In addition, these features simplify the entire measurement process by reducing the tedious preliminary preparation work [34][35][36][37][38][39][40] .…”