Abstract:
This paper investigates the critical issues of
developing ultra-high frequency (UHF) radio frequency
identification (RFID)-based low-power wireless sensors for
infrastructure related metallic environments. Our studies show
that the readability of tag antennas is considerably affected by
the dimensions of the metallic mounts. Simulation results show
that the surface current density distribution on the mount has
a direct correlation with the measured readability. It is also
shown that the wireless power flow towards the mounted tag
antenna is significantly affected by the orientation of the metal
mounts resulting in variable incident power. Furthermore, the
studies show that the tag antennas de-tune considerably, due to
the different shapes of the metal mounts. Both transmit and
receive mode simulation results are in good agreement with the
experimental measurements.
Citation:
Jayawardana, D., & Liyanapathirana, R. (2018). UHF RFID-based low-power wireless sensor development for infrastructure health monitoring: issues in metallic environments. In R. Samarasinghe & S. Abeygunawardana (Eds.), Proceedings of 2nd International Conference on Electrical Engineering 2018 (pp. 105-110). Institute of Electrical and Electronics Engineers, Inc. https://ieeexplore.ieee.org/xpl/conhome/8528200/proceeding