Triangular loop resonator based compact chipless RFID tag
: Rauf S, Riaz MA, Shahid H, Iqbal MS, Amin Y, Tenhunen H
Publisher: IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
: 2017
: Ieice Electronics Express
: IEICE ELECTRONICS EXPRESS
: IEICE ELECTRON EXPR
: ARTN 20161262
: 14
: 4
: 6
: 1349-2543
DOI: https://doi.org/10.1587/elex.14.20161262
: https://www.jstage.jst.go.jp/article/elex/14/4/14_14.20161262/_pdf
A novel, frequency selective surface (FSS) inspired, fully passive, chipless data encoding circuit capable of being operated as a radio frequency identification (RFID) tag is presented. The tag is composed of finite repetitions of the unit cell realized on a grounded FR4 substrate having an overall size of 27.5 x 30mm(2). The unit cell is made up of several triangle-shaped resonators patterned in a looped fashion. Variation in the geometric structure of the tag, achieved by addition or removal of nested loops, corresponds to a specific bit sequence. Each sequence is represented in the spectral domain as a unique frequency signature of the resonators. The proposed 10-bit tag covers the spectral range from 4 to 11 GHz. The tag is compact, robust, and exhibits a stable response to impinging signals at different angles of incidence.