Title :
Simulation and measurement of a long-range passive RFID system focused on reader architecture and backscattering communication
Author :
Mayordomo, Iker ; Berenguer, Roc ; Fernández, Inaki ; Gutiérrez, Inigo ; Strauss, Wolfram ; Bernhard, Josef
Author_Institution :
CEIT & TECNUN, Univ. of Navarra, San Sebastian
Abstract :
With passive tags achieving longer read ranges, the design of a proper long-range RFID reader has become a challenging issue. A complete long-range passive RFID system, focused on the backscattering tag-to-reader communication and the reader architecture, is presented in this paper. Main reader design constraints are discussed. Guidelines to design a PSK backscatter modulator are also given. The system is not only simulated, but also fabricated and measured. Thus, both the designed reader architecture and the simulation tool are validated. A read range of 10.6 m with only an 11deg phase difference has been measured.
Keywords :
passive networks; phase shift keying; radiofrequency identification; PSK backscatter modulator; backscattering communication; frequency 868 MHz; long range passive RFID system; reader architecture; tag-to-reader communication; Antenna measurements; Backscatter; Circuit simulation; Loaded antennas; Passive RFID tags; Phase shift keying; Radiofrequency identification; Switches; Transponders; Voltage;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751639
