5.8 GHz有源RFID标签超宽带天线  

UWB Antenna of 5.8 GHz Active RFID Tag

作　　者：付康[1,2] 胡少文[1,2] 汤辉[1,2] 刘波平[1,2] 胡敏[1,2] 

机构地区：[1]江西省计算技术研究所,江西南昌330003 [2]江西省软件工程技术研究中心,江西南昌330003

出　　处：《计算机与现代化》2016年第10期112-115,共4页Computer and Modernization

基　　金：国家科技支撑计划项目(2014BAD10B00;2014BAD10B05)

摘　　要：设计一种应用于5.8 GHz有源RFID(Radio Frequency Identification)标签超宽带天线。该天线在覆铜介质基板上通过酸蚀制得,介质基板尺寸为30.0 mm×30.0 mm×1.5 mm,材料是相对介电常数为2.65的F4BK-2基板。利用仿真软件HFSS对天线参数进行仿真和优化。该天线使用梯形辐射贴片,达到展宽带宽的目的,天线频带宽度达到3.1 GHz^11.2 GHz(S11<-10 d B),相对带宽达113%,按照优化尺寸对天线进行加工制作。测试结果表明,实测数据与仿真值基本吻合,该天线不仅可以实现超宽带,而且结构简单,尺寸小,易于集成。Ultra Wideband（UWB） antenna used for 5.8GHz active RFID tag is designed. The antenna is etched on a copper- cladding substrate, whose material is F4BK-2 with relative permittivity of 2.65, and the magnitude is 30. Omm x 30.0 mm ×1.5 mm. The parameters of the antenna are simulated and optimized with HFSS. The trapezoidal radiating patch is used to broaden the impedance bandwidth. The bandwidth （ return loss~〈 - 10 dB） is from 3.1 GHz ~ 11.2 GHz that means a relative bandwidth of 113%. A prototype antenna is fabricated, the results show that good agreement has obtained between the simulation and exper- iment and the proposed antenna can not only realize the ultra-wideband, but also have the merits of simple structure, small size and ease of integration.

关 键 词：超宽带天线 印制天线 微带馈电 

分 类 号：TN82[电子电信—信息与通信工程]