Title :
A New Technique for Positioning of chipless RFID tags
Author :
Rezaiesarlak, Reza ; Manteghi, Majid
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
In this paper, a new method is proposed for the accurate positioning of chipless RFID tags located in the reader area. The reader area is subdivided into some triangular unit cells. Each unit cell is covered by three antennas located at the vertices of the triangles in order to extract the position of the tags. Employing mathematical formulation, it is shown that by applying Narrow-frequency matrix pencil method (NFMPM) to the frequency response of the tag, the distance of the tag from the antennas can be found in the space-frequency diagram.
Keywords :
antennas; frequency response; geometry; interference suppression; matrix algebra; radiofrequency identification; radiofrequency interference; NFMPM; chipless RFID tag positioning; interference signal suppression; mathematical formulation; narrow-frequency matrix pencil method; reader antenna; space-frequency diagram; tag frequency response; tag position extraction; triangular unit cells; Antenna measurements; Antennas; Ports (Computers); RFID tags; Scattering;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905166
