Abstract
As an alternative to classical ultra-high frequency (UHF) radio-frequency identification (RFID) tag localisation methods (e.g. angle of arrival or received signal strength), a new angle-of-activation approach is presented that uses digital multichannel transmit beamforming. By pivoting the main lobe of the interrogator's transmit antenna array utilising the very sensitive response threshold of passive UHF RFID tags, the tag direction is estimated. The presented three-channel digital beamforming hardware pivots the main lobe of a circularly polarised antenna array in a range of ±52° with an angular resolution of 0.02°. It estimates the direction of a circularly polarised tag with a mean measured accuracy of 0.9° in a basic multipath environment.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
