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Experimental platform for waveform optimization in passive UHF RFID systems

机译：无源UHF RFID系统中波形优化的实验平台

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摘要

The article presents an experimental platform, so called “RFID Waveformer,” dedicated to the study of waveform optimization in the radio frequency identification (RFID) context. It is a flexible solution that enables waveform design and their energetic performance evaluation in a ultra high frequency (UHF) RFID link following the ISO-18000 GEN2 standard protocol. It consists of a reader emulated by a LabVIEW interface controlling radiofrequency laboratory instruments, which perform real time tag response detection. Its interconnection with MATLAB routines enables the design and the evaluation of arbitrarily shaped RFID waveforms. In this article, for illustration, three waveforms are tested with RFID Waveformer in a complex propagation environment: pulsed wave (PW) and time reversal (TR) modes compared to the traditional continuous wave (CW) mode. Experimental results show that both PW and TR modes improve the energetic efficiency of the forward link and so the RFID read range compared to CW mode. Furthermore, TR presents the optimal efficiency in complex propagation medium. The RFID Waveformer enables tag response detection in the three modes offering ease of use and repeatability of measurements. The RFID Waveformer being not limited to the scenario considered in this article, it is a versatile solution extendable to other contexts.
机译：本文提出了一个实验平台，所谓的“RFID波形”，专用于射频识别（RFID）上下文中的波形优化研究。它是一种灵活的解决方案，可以在ISO-18000 Gen2标准协议之后的超高频（UHF）RFID链路中的波形设计及其能量性能评估。它由LabVIEW界面控制的读者组成，控制射频实验室仪器进行了执行实时标签响应检测。它与MATLAB例程的互连使得可以设计和评估任意形状的RFID波形。在本文中，为了说明，在复杂的传播环境中用RFID波形器测试三个波形：与传统的连续波（CW）模式相比，脉冲波（PW）和时间反转（TR）模式。实验结果表明，两种PW和TR模式都提高了前向链路的能量效率等，因此与CW模式相比，RFID读取范围。此外，TR在复杂传播介质中呈现了最佳效率。 RFID波形器在提供易用性和测量可重复性的三种模式下，可以在三种模式下进行标签响应检测。 RFID波形不限于本文中考虑的场景，它是一种通用的解决方案可扩展到其他上下文。

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