| 超高频RFID读写器天线的设计与仿真 |
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| 引用本文： | 李磊,张昕,李迎松.超高频RFID读写器天线的设计与仿真[J].应用科技,2010,37(4):61-64. |
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| 作者姓名： | 李磊 张昕 李迎松 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨150001 |
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| 摘 要： | 基于RFID系统对天线的要求,针对单馈电微带天线回波损耗和轴比之间的矛盾,利用理论计算和Ansoft HFSS软件仿真优化的方法设计出了一种用于RFID读写器的新型超高频圆极化微带天线.该天线采用背馈的方法,相对于侧馈有效地减小了天线的尺寸.为实现良好的圆极化性能,该天线利用空气作为介质层.并且采用非对称矩形切角,相对于当前普遍采用的对称等腰直角三角形切角更容易加工和调整.经过仿真分析得出了各种参数的曲线图,验证了该天线的优越性能.
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| 关 键 词： | RFID读写器 微带天线 超高频 圆极化 |
Design and simulation of ultra-high frequency RFID reader antenna |
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| LI Lei,ZHANG Xin,LI Ying-song.Design and simulation of ultra-high frequency RFID reader antenna[J].Applied Science and Technology,2010,37(4):61-64. |
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| Authors: | LI Lei ZHANG Xin LI Ying-song |
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| Institution: | LI Lei,ZHANG Xin,LI Ying-song(College of Information , Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | Based on the requirements of the RFID(radio frequency identity)systems antenna,a new ultra-high frequency circularly polarized microstrip antenna using in RFID reader was designed aiming at the contradiction between return loss and axial ratio of single-fed microstrip antenna by theoretical calculations and Ansoft HFSS for simulation and optimization.By using the back-feeding pattern,the antenna effectively reduces the size of the antenna relative to side-feeding.To achieve good circular polarization perfor... |
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| Keywords: | RFID reader microstrip antenna ultra-high frequency(UHF) circular polarization |
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