RFID电子车牌用树脂缝隙天线的设计  

Design of RFID electronic vehicle identification with resin slot antenna

作　　者：赵文婧[1] 厉丹[1] 黄为勇[1] 吴双江[2] 

机构地区：[1]徐州工程学院信电工程学院,江苏徐州221000 [2]空军勤务学院飞行保障指挥系,江苏徐州221000

出　　处：《现代电子技术》2016年第5期73-77,80,共6页Modern Electronics Technique

基　　金：住房和城乡建设部科技计划项目(2014-K5-027);江苏省基础研究计划(自然科学基金)资助项目(BK20131124);徐州工程学院江苏省大型工程装备检测与控制重点实验室开放基金项目(JSKLEDC201212)

摘　　要：为了对车辆进行射频识别(RFID),设计一种用于有源电子车牌的弯折树脂缝隙天线,并根据车牌安装的实际情况设计了馈电结构。该天线能够将有源RFID模块与金属车牌有效一体化,而且树脂缝隙不易变形,能够加强天线的机械强度。利用HFSS软件对结构参数进行仿真优化,并分析了结构参数的变化对天线工作频带特性的影响,得到设计该天线的一般规律。仿真结果表明,该树脂缝隙天线工作频段满足RFID的2.45 GHz频段范围,具有较高的增益、较远的阅读距离和车辆识别所需的多波束辐射方向图。The buckling resin slot antenna used to active electronic vehicle identification was designed to conduct radio fre- quency identification （RFID） of vehicles, and its feed structure was designed according to the actual installing situation of the electronic vehicle identification. The antenna can effectively integrate the active RFID module and metal license plate. The resin slot is difficult of deformation, but can strengthen the mechanical strength of the antenna. The structure parameters are simulated and optimized by HFSS simulation software. The influences of structure parameters changing on impedance bandwidth characteris- tics of the antenna are analyzed to obtain the general design rule of the antenna. The simulation results show that the impedance bandwidth of the resin slot antenna can meet the RFID band range of 2.45 GHz. The antenna has high gain, far read range, and multi-beam radiation pattern required by vehicle identification.

关 键 词：射频识别 电子车牌 树脂缝隙天线 阅读距离 方向图 

分 类 号：TN82-34[电子电信—信息与通信工程]