Millimeter-wave Chipless RFID Tag for Authentication Applications

Abstract

This paper presents a millimeter-wave chipless RFID tag for authentication applications. The concept is based on the idea that it is extremely difficult to identically reproduce materials that inherently have a random aspect due to manufacturing process variations. This paper introduces the paradigm of millimeter-wave authentication based on tags without any chip, including an identifier capable of communicating in the millimeter-wave range. For this purpose, millimeter-wave chipless tags without a ground plane are designed using the RF Encoding Particle (REP) technique. This approach establishes a relation between the geometrical parameters of the isolated scatter and its electromagnetic signature. An elementary particle multiplication strategy is envisaged to increase the backscattered tag level. The evaluated probability of error around 17% is reached with a fabricated tag set from the same manufacturer simultaneously. This probability is two times lower than the one obtained with a similar approach implemented in the X-band.

Design and Manufacture of Resonant Chipless Tags in Millimeter-Wave Band

“…The first step of that approach is to establish a relation between the geometrical parameters of the isolated scatter and its electromagnetic signature. Well-known tags have been evaluated for resonant mmWave purposes: C-section [4], Loop-shape [13] and E-shape [14]. The geometrical designs of the tags taking account of the constraints are shown in Fig.…”