Open AccessAnalysis and calculation of radar cross section in passive RFID systems
Author(s) -
Tang Zhi-Jun,
Yigang He
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.5126
Subject(s) - radar cross section , radio frequency identification , radar , computer science , antenna (radio) , passive radar , cross section (physics) , identification (biology) , computation , range (aeronautics) , section (typography) , bistatic radar , remote sensing , electronic engineering , acoustics , telecommunications , physics , radar imaging , geology , aerospace engineering , algorithm , engineering , computer security , botany , quantum mechanics , biology , operating system
Based on the theory of passive RFID technology and antenna scattering, some computation methods for radar cross-section of tag antennas with different loads are derived, and by integrating the radar cross-section with electromagnetic propagation environment, the identification range of passive radio frequency identification is theoretically analyzed. Furthermore, by measuring backscattered power in the case of different loads, and then combined with the calculating methods, radar cross-section of the tag is also found. Theoretical analysis results are found to be in good agreement with experimental data. The results obtained are useful for optimizing tag performance in passive RFID systems.