Title :
Reduced fading for RFID tags with multiple antennas
Author :
Griffin, Joshua D. ; Durgin, Gregory D.
Author_Institution :
Georgia Inst. of Technol., Atlanta
Abstract :
Using new, analytic expressions for the envelope probability density function (PDF) of the M times L times N dyadic backscatter channel, this paper demonstrates that modulating backscatter using multiple RF tag antennas can reduce small-scale fading. Several practical design guidelines are presented to exploit this property of the channel and to increase the RF tag range and reliability without a change in the signaling scheme.
Keywords :
antennas; fading channels; probability; radiofrequency identification; RFID tag; multiple RF tag antenna; probability density function; small-scale fading; Backscatter; Baseband; Fading; RF signals; RFID tags; Radio frequency; Radio transmitters; Radiofrequency identification; Receiving antennas; Transmitting antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4395716
