A 3D-modulated delay-line based chipless TDR UWB RFID system with high suppression of multiple reflections
A 3D-modulated delay-line based chipless TDR UWB RFID system with high suppression of multiple reflections
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DOI：
10.1109/eumc.2016.7824276
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发表时间：
2016-10
期刊：
影响因子：
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通讯作者：
M. Popper;T. Frank;C. Mandel;R. Jakoby;M. Vossiek
中科院分区：
文献类型：
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作者：
M. Popper;T. Frank;C. Mandel;R. Jakoby;M. Vossiek
在通信信道中以及标签本身上产生的多次反射对时域反射（TDR）射频识别（RFID）系统的性能具有很大影响。在本文中，我们提出了一个完整的无芯片延迟线为基础的TDR超宽带（UWB）系统具有低多次反射和三维调制方案。我们使用最小标签延迟来减小标签尺寸以及标签上的插入损耗，这减小了最大阅读范围和最大调制阶数。标签上有微带分频器，可以阻挡多重反射。此外，阅读器和标签上的正交极化天线可以抑制来自周围环境和标签本身的杂波。这些措施确保了12位的数据容量，并允许标签询问没有任何校准。我们提供了一个详细的系统架构的分析，通过测量结果验证，证明系统的能力。
Multiple reflections that are created in the communication channel as well as on the tag itself have a high impact on the performance of time domain reflectometry (TDR) radio frequency identification (RFID) systems. In this paper we present a complete chipless delay-line based TDR ultra-wideband (UWB) system with low multiple reflections and a 3D modulation scheme. We use a minimum tag delay to reduce tag size as well as insertion loss on the tag, which decreases the maximum reading range and the maximum modulation order. Microstrip dividers are in place on the tag to block multiple reflections on it. Additionally, orthogonally polarized antennas at the reader and the tag are used to suppress clutter from the surroundings as well as from the tag itself. These measures assure a 12-bit data capacity and allow tag interrogation without any calibration. We provide a detailed analysis of the system architecture, verified by measurement results, to prove the capability of the system.