Title :
Orientation Detection Using Passive UHF RFID Technology [Education Column]
Author :
Gupta, Gaurav ; Singh, Bhanu Pratap ; Bal, Alkan ; Kedia, Deepam ; Harish, A.R.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Kanpur, Kanpur, India
Abstract :
A simple, compact, rechargeable handheld radio-frequency identification (RFID) reader was designed to detect the orientation of tagged objects. The system uses a linearly polarized reader antenna and the orientation sensor of the mobile device to identify the orientation of the tag. The system works in the ultra-high-frequency (UHF) RFID band. Detailed testing was done in different surroundings with various materials and tags. The system was able to correctly identify the orientation in several cases with an average angular error of less than 10°. This system can also be used to demonstrate the concept of polarization.
Keywords :
UHF antennas; antenna radiation patterns; dipole antennas; linear antennas; mobile radio; object detection; radiofrequency identification; wireless sensor networks; artificial magnetic conductor; dipole antennas; high impedance surface; linearly polarized reader antenna; mobile device; orientation sensor; passive UHF RFID technology; polarization concept; rechargeable handheld radio-frequency identification reader; tag orientation identification; tagged object orientation detection; ultra-high-frequency RFID band; Antenna measurements; Dipole antennas; Magnetic conductors; Polarization; Radiofrequency identification; Receiving antennas; Tagging; Transmitting antennas; Accelerometer; Android; RFID tags; artificial magnetic conductor (AMC); dipole antennas; high impedance surface (HIS); orientation detection; polarization; radiofrequency identification (RFID);
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2014.7011063
