A coherent multi-reader approach to increase the working range of passive RFID systems

Author

Kubina, Bernd ; Schussler, Martin ; Mandel, Christian ; Maune, Holger ; Muller, Dirk ; Ziroff, Andreas ; Jakoby, Rolf

Author_Institution

Inst. for Microwave Eng. & Photonics, Tech. Univ. Darmstadt, Darmstadt, Germany

fYear

2012

fDate

5-7 Nov. 2012

Firstpage

350

Lastpage

355

Abstract

A multi-reader system is presented which is capable of increasing the working range of passive RFID systems. This gain in range is obtained by using constructive superposition of the readers´ RF waves. A coherent multi-reader demonstrator system has been designed that consists of two reader units and one central unit. The demonstrator system operates in the UHF band and allows for an arbitrary distributed placement of its units. Simulation results and indoor measurements are presented, which show a significant larger range of the multi-reader system in comparison to a single-reader.

Keywords

radiofrequency identification; UHF band; coherent multireader approach; coherent multireader demonstrator system; passive RFID systems; reader RF wave constructive superposition; Antenna measurements; Antennas; Interference; Passive RFID tags; Radio frequency; Synchronization; RFID tags; Radiofrequency identification; UHF propagation; radiofrequency interference;

fLanguage

English

Publisher

ieee

Conference_Titel

RFID-Technologies and Applications (RFID-TA), 2012 IEEE International Conference on

Conference_Location

Nice

Print_ISBN

978-1-4673-4656-6

Electronic_ISBN

978-1-4673-4658-0

Type

conf

DOI

10.1109/RFID-TA.2012.6404545

Filename

6404545