On the application of the EM-imaging for chipless RFID tags. Issue 2 (1st October 2015)

• Record Type: Journal Article
• Authors: Zomorrodi, M.; Karmakar, N.C.
• Editors: Tedjini, Smail; Karmakar, Nemai Chandra
• Is Part Of: Wireless power transfer. Volume 2:Issue 2(2015)
• Page Start: 86
• Page End: 96
• Publication Date: 2015-10-01
• Subjects: mm-wave, -- EM-imaging, -- Synthetic aperture radar; Wireless power transmission -- Periodicals; 621.319
• DOI: 10.1017/wpt.2015.12
• Languages: English
• ISSNs: 2052-8418

Abstract

Abstract : The electromagnetic (EM) imaging technique at mm-band 60 GHz is proposed for data encoding purpose in the chipless Radio Frequency Identification (RFID) systems. The fully printable chipless RFID tag comprises tiny conductive EM polarizers to create high cross-polar radar cross-section. Synthetic aperture radar approach is applied for formation of the tag's EM-image and revealing the tag's content. The achieved high data encoding capacity of 2 bits/cm 2 in this technique based on a fully printable tag is very convincing for many applications. The system immunity to multipath interference, bending effect, and printing inaccuracy suggests huge potentials for low-cost item tagging. Tags are also readable through a tick paper envelop; hence secure identification is provided by the proposed technique.