首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Platform tolerant dual-band UHF-RFID tag antenna with enhanced read range using artificial magnetic conductor structures
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Platform tolerant dual-band UHF-RFID tag antenna with enhanced read range using artificial magnetic conductor structures

机译:使用人工磁导体结构提高读取范围的耐平台双频UHF-RFID标签天线

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摘要

In this work, a platform tolerant novel dual band tag antenna is proposed forUHF-RFID bands used in Europe (855-867 MHz) and Japan (950-955 MHz).Asymmetrical shunt stub feed network is employed to effectively match itsimpedance to the microchip (Alien Higgs-4). The antenna miniaturization isachieved by embedding inverted L-shaped slit on left side of the patch. Also,asymmetrical stepped rectangular slot is embedded to further achieve the optimizeddual band response at the desired resonant frequencies (f_1 = 866 MHzand f_2 = 953 MHz). To further enhance its radiation performance on conductiveobjects like metallic surfaces, the proposed tag is integrated with artificialmagnetic conductor (AMC) structure. Also, antenna parameters such as mainlobe gain, directivity, front-to-back ratio parameters are examined for the integratedtag in free space and on metallic sheet. The proposed integrated tag exhibitsdirectional radiation pattern making it insensitive to underlying object and thusplatform tolerant. Further, the proposed integrated tag exhibits steady gainresponse inside the resonating bands on different sized metallic sheets. The proposedintegrated tag is compact (2635mm~3) covering European band with a readrange of 7.3 m and Japanese band with a read range of 10.8 m.
机译:在这项工作中,针对欧洲(855-867 MHz)和日本(950-955 MHz)所使用的UHF-RFID频段,提出了一种可耐受平台的新型双标签天线。 (Alien Higgs-4)。通过在贴片的左侧嵌入倒L形缝隙,可以实现天线的小型化。而且,嵌入了不对称的阶梯状矩形缝隙,以进一步在所需的谐振频率(f_1 = 866 MHz和f_2 = 953 MHz)下实现优化的双频带响应。为了进一步增强其在诸如金属表面之类的导电物体上的辐射性能,建议的标签与人造磁导体(AMC)结构集成在一起。此外,还要检查天线参数(例如主瓣增益,方向性,前后比率参数),以检查自由空间和金属板上的集成标签。所提出的集成标签表现出定向辐射图,使其对下面的物体不敏感,因此对平台具有耐受性。此外,所提出的集成标签在不同尺寸的金属板上的共振带内表现出稳定的增益响应。所提出的集成标签是紧凑的(2635mm〜3),覆盖欧洲频段,读取范围为7.3 m,日本频段,读取范围为10.8 m。

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