Electric‐field‐coupled contactless ID sensor for cm‐level high‐precision positioning item‐level tagging systems. Issue 10 (1st May 2016)

• Record Type: Journal Article
• Authors: Jeong, M.‐G.; Kim, J.‐H.; Bae, S.‐H.; Lee, W.‐S.
• Is Part Of: Electronics letters. Volume 52:Issue 10(2016)
• Page Start: 837
• Page End: 838
• Publication Date: 2016-05-01
• Subjects: radiofrequency identification -- UHF detectors -- electric sensing devices; electric‐field‐coupled contactless ID sensor -- cm‐level high‐precision positioning item‐level tagging systems -- ILT systems -- near‐field ultra‐high‐frequency RFID applications -- circular electric coupling parts -- impedance‐matching network -- SP4T switch -- position control -- cm‐level position detection -- densely aggregated RFID tags; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.0383
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : To detect multiple identifications (IDs) for cm ‐level high‐precision positioning item‐level tagging (ILT) systems in near‐field ultra‐high‐frequency RFID applications, an electric‐field‐coupled multiple ID sensor is presented. The proposed ID sensor consists of four circular electric coupling parts, an impedance‐matching network, and an SP4T switch for position control. By switching the electric‐field‐coupled sensing parts, cm ‐level position detection of densely aggregated RFID tags for a small‐sized ILT can be achieved. The sensing distance of the proposed ID sensor is ∼7 mm and its physical size is 50 × 50 mm 2 (∼1/7 λ 0 at 920 MHz).