基于非对称缝隙的射频标签天线设计  

Design of RFID tag antenna based on non-symmetrical slot antenna

作　　者：周永明[1] 赖晓铮[2] 赖声礼[2] 

机构地区：[1]韶关学院电子系,广东韶关512005 [2]华南理工大学电子与信息学院,广东广州510640

出　　处：《暨南大学学报（自然科学与医学版）》2008年第5期466-469,共4页Journal of Jinan University(Natural Science & Medicine Edition)

基　　金：广东珠海市科技攻关项目(PC20032001);韶关市技术创新项目(韶科2007-01)

摘　　要：为缩减射频标签用缝隙天线的尺寸,提高标签芯片与缝隙天线的匹配性能,提出了射频标签用非对称缝隙天线.给出了非对称缝隙天线的阻抗随缝隙的长度和弯折角度的变化曲线.尝试将非对称缝隙天线与Philips公司提供的标签测试芯片进行阻抗匹配,制作了相应的实物天线,仿真与测试结果说明所设计的天线基本能满足RFID标签应用要求.To reduce the size of the slot antenna for RFID （ radio frequency identification） tag and to improve the performance of the matching between tag chip and slot antenna, we presents a non-symmetrical slot antenna for RFID tag at 915 MHz band. The curves of impedance of slot antenna along with its length and folded angle are presented. The presented slot antenna has been matched with the testing chip of Philips＇ Company. A reciprocal slot antenna for tag has been fabricated. Both simulated and measured results show that the designed antenna can basically meet the needs of RFID application.

关 键 词：射频识别 标签天线 非对称缝隙天线 阻抗特性 匹配设计 

分 类 号：TN821.4[电子电信—信息与通信工程]