计算机与现代化

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5.8 GHz有源RFID标签超宽带天线

  

  1. 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
  • 收稿日期:2016-03-29 出版日期:2016-10-15 发布日期:2016-10-14
  • 作者简介:付康(1974-),男,江西南昌人,江西省计算技术研究所、江西省软件工程技术研究中心教授级高级工程师,研究方向:无线电及信息安全; 通信作者:胡少文(1987-),男,江西南昌人,助理工程 师,研究方向:无线电及信息安全。
  • 基金资助:
    国家科技支撑计划项目(2014BAD10B00,2014BAD10B05)

UWB Antenna of 5.8 GHz Active RFID Tag

  1. 1. Jiangxi Institute of Computing Technology, Nanchang 330003, China;
    2. Software Engineering and Technical Research Center of Jiangxi Province, Nanchang 330003, China
  • Received:2016-03-29 Online:2016-10-15 Published:2016-10-14

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(S11<-10 dB),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。

关键词: 超宽带天线, 印制天线, 微带馈电

Abstract:

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 30.0mm×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 experiment 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.

Key words:  , ultrawideband antenna; printed antenna; microstripfeed

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