2.4GHz有源RFID标签室内天线定位研究  

Research on method of the antenna indoor position of 2.4 GHz active RFID tag

作　　者：胡少文[1] 刘波平[1] 付康[1] 

机构地区：[1]江西省计算技术研究所江西省软件工程研究中心,江西南昌330003

出　　处：《电子元件与材料》2015年第7期68-72,共5页Electronic Components And Materials

基　　金：国家科技支撑计划项目资助(No.2014BAD10B00);科技部课题5资助项目(No.2014BAD10B05)

摘　　要：提出了一种应用于2.4 GHz有源RFID(Radio Frequency Identification)标签室内定位探测天线,通过扫描探测和提取标签信号,精确探测RFID标签的位置。仿真结果表明:在中心频率点(2.4 GHz)S11=–14.78 d B,且H面的波束约在12o,达到窄波束的要求。经对该天线实测得:在2.4 GHz其回波损耗为–14.36 d B、H面的波束约在19o,仿真结果与实测结果比较接近,满足2.4 GHz有源RFID标签室内定位的需求。An indoor positional antenna used for 2.4 GHz active RFID tag was presented. The tag position was accurately detected by scanning detect and getting the tag signal. Simulation results show that SH = -14.78 dB at 2.4 GHz center frequency and the H plane beam is about 12°, which reaches the requirements of narrow beam. On the basis of the practive testing to the antenna, the H plane beam is about 19° and return loss is -14.36 dB. The simulation results are basically consistent with the experiment results, which meets requirements of 2.4 GHz active RFID tag indoor positioning.

关 键 词：隔空阵列天线 RFID电子标签 窄波束 通信区域 室内定位 标签位置 

分 类 号：TN92[电子电信—通信与信息系统]