Title :
High-Capacity Chipless RFID Tag Insensitive to the Polarization
Author :
Vena, Arnaud ; Perret, Etienne ; Tedjini, Smail
Author_Institution :
Lab. de Conception et d´´Integration des Syst. (LCIS), Grenoble Inst. of Technol., Valence, France
Abstract :
Designing a reader for chipless RFID is a hard task since both the polarization and operating frequency agility have to be implemented. The new tag design proposed in this paper is polarization independent, making the design of the reader easier since only linear polarization is needed to detect the tag. The proposed chipless tag is based on multiple circular ring patch resonators. The coding capacity of this tag reaches 19 bits within a compact surface of cm . Further, the frequency band is within 3.1 to 10.6 GHz to be compliant with FCC and ECC regulations for UWB. This new design is experimentally validated in the frequency domain using bi-static measurement set-up. Both amplitude and group delay responses of the tag are investigated and carried out.
Keywords :
frequency-domain analysis; microwave measurement; microwave resonators; radiofrequency identification; ultra wideband communication; ECC regulations; FCC regulations; UWB; amplitude responses; bistatic measurement set-up; coding capacity; frequency 3.1 GHz to 10.6 GHz; frequency domain; group delay responses; high-capacity chipless RFID tag; linear polarization; multiple circular ring patch resonators; word length 19 bit; Antennas; Delay; Encoding; Frequency measurement; Resonant frequency; Substrates; Surface waves; Chipless; RCS; frequency shift encoding; group delay; polarization independent; radio-frequency identification (RFID);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2012.2207347
