Dual-polarized chipless humidity sensor tag

: Zeb S, Habib A, Satti JA, Amin Y, Loo J, Tenhunen H

Publisher: IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG

: 2017

Ieice Electronics Express

: IEICE ELECTRONICS EXPRESS

: IEICE ELECTRON EXPR

: ARTN 20170926

: 14

: 21

: 1

: 6

: 1349-2543

DOI: https://doi.org/10.1587/elex.14.20170926

In this letter, a miniaturized, flexible and high data dense dual-polarized chipless radio frequency identification (RFID) tag is presented. The tag is designed within a minuscule footprint of 29 x 29 mm(2) and has the ability to encode 38-bit data. The tag is analyzed for flexible substrates including Kapton (R) HN DuPont (TM) and HP photopaper. The humidity sensing phenomenon is demonstrated by mapping the tag design, using silver nano-particle based conductive ink on HP photopaper substrate. It is observed that with the increasing moisture, the humidity sensing behavior is exhibited in RF range of 4.1-17.76 GHz. The low-cost, bendable and directly printable humidity sensor tag can be deployed in a number of intelligent tracking applications.