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A_12.3_dBm_UHF_Passive_RFID_Sense_Tag_for_Grid_Thermal_Monitoring.pdf (2.88 MB)

A −12.3 dBm UHF Passive RFID Sense Tag for Grid Thermal Monitoring

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journal contribution
submitted on 2023-08-23, 08:15 and posted on 2023-09-21, 05:08 authored by Bo Wang, Man-Kay Law, Jun Yi, Chi-Ying Tsui, Amine Bermak

This paper presents an ultra-high-frequency (UHF) passive sense tag for electrical grid and substation thermal monitoring, with emphasis on the tag system optimization and the design of a low power embedded temperature sensor. The designed tag achieves a sensitivity of -12.3 dBm under active temperature monitoring operation, which is the state of the art among existing UHF passive temperature sense tag products. The sensing inaccuracy of the tag is ±2.5 °C (3σ) from -25 to 120 °C after a low-cost wireless single-point trim. An antimetal ceramic-packaged tag was tested by attaching to a ring main unit in the substation and complete tag system demonstrated robust wireless operation with a sensing distance of 3.5 m. The combination of batteryless and wireless operation, high sensitivity, wide sensing range, and small incident-power-dependent error (±0.2 °C) makes this tag suitable for the target applications.

Other Information

Published in: IEEE Transactions on Industrial Electronics
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Open Access funding provided by the Qatar National Library.



  • English



Publication Year

  • 2019

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License.

Institution affiliated with

  • Hamad Bin Khalifa University
  • College of Science and Engineering - HBKU