%0 Journal Article
%T Analysis and calculation of radar cross section in passive RFID systems<br>无源射频识别系统中的雷达截面分析与计算
%A Tang Zhi-Jun
%A He Yi-Gang
%A <br>唐志军
%A 何怡刚
%J 物理学报
%D 2009
%I 
%X 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.
%K radio frequency identification
%K antenna
%K radar cross section
%K identification range<br>射频识别，
%K 天线，
%K 雷达截面，
%K 识别距离
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=D54398875ABE1A84358DB6E14FF51B0F&yid=DE12191FBD62783C&vid=9FFCC7AF50CAEBF7&iid=DF92D298D3FF1E6E&sid=3C156F33B6D32A49&eid=5A5B184F8ECD4F68&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0