摘要
针对奥地利微电子公司（AMS）推出的具有传感功能的标签芯片SL900A,提出一种适用SL900A标签芯片的超高频折叠偶极子标签天线。SL900A标签芯片符合EPC Class1 Gen2（860-960 MHz）标准,谐振频率在900MHz处芯片输入阻抗为31-320jΩ。本文通过HFSS电磁仿真软件对设计的天线进行建模、仿真,分析得出影响天线阻抗、谐振频率和带宽性能的关键尺寸参数,采用烟花算法（FWA）优化方法对天线关键尺寸参数进行优化。经过优化,天线功率反射系数小于-10 d B时带宽为10%,覆盖860-960 MHz频段,最大增益达到-0.98 d B,天线与SL900A标签芯片实现良好的共轭阻抗匹配。根据优化结果制作天线实物,测试结果表明设计实现的天线适用于SL900A标签芯片。
This paper proposed a UHF folded dipole tag antenna for SL900A tag chip, which has sensor functionality. SL90OA is an EPC Class1 Gen2 （860 -960 MHz） tag chip released by AMS, and its input impedance is 31j-320jΩ at the center frequency of 900 MHz. The antenna was simulated by the HFSS simulation software. According to the results of simu- lation, the key dimension parameters of antenna are obtained, which influence the antennas＂ impedance, center frequency and bandwidth performance. Fireworks algorithm （FWA） is utilized to optimize the key dimension parameters, the band- width of tag antenna achieves 10% when the power reflection coefficient is less than -10 dB, covering 860 - 960 MHz. Mo- reover, the maximum gain reaches -0.98 dB. Also, the antenna and SL900A tag chip obtains a good conjugate impedance matching performance at the frequency of 900 MHz. The antenna is made according to the optimization parameters ; the meas- ured results of the designed antenna indicate that the antenna can be applicable to SL900A tag chip.
出处
《微波学报》
CSCD
北大核心
2016年第4期41-46,共6页
Journal of Microwaves
基金
国家自然科学基金(61471075)
国家科技支撑计划项目(2014BAI11B00)
