Title :
Wireless RF Identification System Based on SAW
Author :
Liu, Jicheng ; Yao, Jianhong
Author_Institution :
DaQing Pet. Inst., DaQing
Abstract :
The passive RF identification system is discussed in this paper. The system uses the surface acoustic wave (SAW) as an identification tag and works at ISM-915 MHz. The system adopts a pair of passive dispersive SAW filters for pulse expansion and compression in order to improve antijamming performance and degrade the severe requirement for sensitivity of a wideband receiver. Then, the structure of the SAW tag, the principle of transmitter and receiver, and the DSP subsystem are discussed. Finally, testing results are demonstrated.
Keywords :
pulse compression; radiofrequency identification; surface acoustic wave filters; DSP subsystem; antijamming performance; passive dispersive SAW filter; pulse compression; pulse expansion; wideband receiver; wireless RF identification system; Acoustic pulses; Acoustic waves; Degradation; Dispersion; Pulse compression methods; Radio frequency; Radiofrequency identification; SAW filters; Surface acoustic waves; Wideband; Identification; Radio transceivers; SAW; Wireless Identification System; surface acoustic wave (SAW); transceivers;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2007.909733
