Title :
Analysis of near-field coupling in UHF-RFID systems
Author :
Buffi, A. ; Nepa, P. ; Manara, G.
Author_Institution :
Dept. of Inf. Eng., Univ. of Pisa, Pisa, Italy
Abstract :
Near-field coupling analysis of UHF RFID systems is addressed. Numerical full-wave simulations are used to quantify the coupling between realistic reader and tag antennas. An impedance matrix approach has been adopted to evaluate the power transfer efficiency as a function of the distance between the reader and tag antennas, in the whole UHF RFID frequency band (860-960 MHz).
Keywords :
UHF antennas; electromagnetic coupling; impedance matrix; numerical analysis; radiofrequency identification; UHF-RFID systems; frequency 860 MHz to 960 MHz; impedance matrix approach; near-field coupling analysis; numerical full-wave simulations; power transfer efficiency; reader antennas; tag antennas; Couplings; Impedance; Loaded antennas; Loading; Radiofrequency identification; UHF antennas;
Conference_Titel :
Antennas and Propagation in Wireless Communications (APWC), 2011 IEEE-APS Topical Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-4577-0046-0
DOI :
10.1109/APWC.2011.6046818
