Abstract In this paper, a novel UHF RFID Tag antenna for automotive tire is presented. The antenna shape and size are reduced by using a meander line. To ensure a proper impedance matching between the antenna and the microchip, especially when antenna is immersed in dielectric medium, a simple approach is presented. The square-load is added at the both ends of antenna tag in order to improve the bandwidth aspect. The tag has a reduced size: 40mm*13.5mm*0.018mm. Hence, it can be embedded in automotive tire. The tag provides the low profile and low cost fabrication. The simulated results show that our approach is helpful to achieve impedance matching process. Moreover, the proposed antenna has omnidirectional radiation patterns and a good gain that satisfy maximum power transmitting in RFID communication once tag is embedded in rubber material.

中文翻译：

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UHF RFID标签天线浸入介质材料的匹配方法

摘要 本文提出了一种用于汽车轮胎的新型UHF RFID标签天线。通过使用曲折线减小了天线形状和尺寸。为了确保天线和微芯片之间的阻抗匹配，特别是当天线浸入电介质中时，提出了一种简单的方法。在天线标签的两端添加方形负载，以提高带宽方面。标签尺寸缩小：40mm*13.5mm*0.018mm。因此，它可以嵌入汽车轮胎中。该标签提供了低调和低成本的制造。仿真结果表明，我们的方法有助于实现阻抗匹配过程。此外，所提出的天线具有全向辐射模式和良好的增益，一旦标签嵌入橡胶材料中，就可以满足 RFID 通信中的最大功率传输。