Title :
Detection Range Enhancement of UWB RFID Systems
Author :
Hu, Sanming ; Law, Choi Look ; Dou, Wenbin ; Chen, Honghui
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing
Abstract :
To enhance the detection range of ultra-wideband (UWB) radio frequency identification (RFID) systems, two techniques, i.e., enlarging the size of tag antenna and adopting antenna array, are studied in this paper. A type of UWB antenna that is printed circular-disc monopole antenna (PCDMA) is developed and measured. By employing the two enhancement techniques, the measured improvements of detection range are 1.52 times (1.82 dB) and 1.36 times (1.34 dB) respectively. The measured results are numerically verified by the finite-difference time-domain (FDTD) method.
Keywords :
finite difference time-domain analysis; microstrip antenna arrays; monopole antenna arrays; radiofrequency identification; ultra wideband antennas; FDTD; PCDMA; UWB RFID system; antenna array; detection range enhancement; finite-difference time-domain method; printed circular-disc monopole antenna; tag antenna; ultra-wideband radio frequency identification system; Antenna measurements; Backscatter; Bandwidth; Finite difference methods; Frequency measurement; Geometry; Impedance; Radiofrequency identification; Time domain analysis; Ultra wideband antennas;
Conference_Titel :
Anti-counterfeiting, Security, Identification, 2007 IEEE International Workshop on
Conference_Location :
Xiamen, Fujian
Print_ISBN :
1-4244-1035-5
Electronic_ISBN :
1-4244-1035-5
DOI :
10.1109/IWASID.2007.373672
