Development and Performance Evaluation of a Low-Cost Multi-Sensor RF Tag for Real-Time Environmental Monitoring
Hafsa Anam, Syed Muzahir Abbas, Iain B. Collings, Subhas Chandra Mukhopadhyay · 2024
Sensing multi parameters is a significant challenge in wireless and IoT networks. We have proposed a smart low-cost multi sensor chipless RFID tag in this research. The sensor tag operates at a frequency of 11.25 GHz, while the temperature-sensitive tag functions at 5.5 GHz. The tag has been analyzed for stepwise temperature increment from 25°C to 100°C, whereas humidity is monitored from 0%RH to 100%RH levels. Kapton HN substrate is utilized for RH monitoring whereas Rogers RT/Duroid 6010.2LM is used as temperature sensitive substrate. Heat resistant Kapton HN tape is deployed over temperature sensitive tag slot to analyze sensitivity and selectivity of proposed sensor tag. The sensing behavior of tag is reliable and finds suitable applications towards IoT and sensing applications. This research underlines the potential of wireless smart tags to revolutionize IoE connectivity.