Title :
Analysis of Dead Zone by Mathematical Methods
Author_Institution :
RFID Res. Center, Chinese Acad. of Sci., Beijing, China
Abstract :
Radio-Frequency identification (RFID) dead zones are the regions within the maximum operating range of the RFID System where the RFID reader fails to read the RFID tag. The two reasons for the emergence of dead zones - the multipath loss of signal power and impedance mismatch between tag antenna and chip are studied clearly with mathematical methods. Finally, some advices are proposed to improve the RFID performance in applications.
Keywords :
UHF antennas; impedance matching; radiofrequency identification; RFID dead zones; RFID reader; RFID tag; dead zone analysis; impedance mismatch; mathematical methods; multipath loss; radiofrequency identification; signal power; tag antenna; Antennas; Equations; Fading; Impedance; Power transmission; Radiofrequency identification; Reflection;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6040569
