Analysis of UWB Tag Backscattering and Its Impact on the Detection Coverage
Analysis of UWB Tag Backscattering and Its Impact on the Detection Coverage
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DOI：
10.1109/tap.2014.2326179
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发表时间：
2014-08-01
影响因子：
5.7
通讯作者：
Dardari, Davide
中科院分区：
文献类型：
--
作者：
Guidi, Francesco;Sibille, Alain;Dardari, Davide
RFID和UWB技术的联合采用是克服当前RFID系统的大多数局限性的有前途的解决方案。特别地，当标签成本、尺寸和功耗有严格要求时，基于反向散射信号调制的UWB RFID代表了一个很好的选择。在这种情况下，虽然目前的UHF RFID系统的广泛的文献，只有少数研究集中在UWB信号的后向散射。在目前的工作中，我们处理的UWB RFID标签的后向散射的电磁分析，这是通过一个封闭的对象来表征标签的相互作用。我们首先从分析的角度研究标签的后向散射，然后通过模拟和测量。然后对测量数据进行后处理，并最终评估检测覆盖分析方面的性能，以评估天线附近物体的影响。
The joint adoption of RFID and UWB technologies is a promising solution to overcome most of the limitations of current RFID systems. In particular, UWB RFID based on the modulation of the backscatter signal represents a good option when tags cost, size and power consumption are stringent requirements. In this context, while for current UHF RFID systems an extensive literature is present, only few studies have concentrated on the backscattering of UWB signals. In the present work, we deal with the electromagnetic analysis of the UWB RFID tag backscattering, which is adopted to characterize the interaction of the tag with a close object. We investigate tag backscattering first froman analytical perspective, then through simulations and measurements. Measured data is then post-processed, and performance in terms of detection coverage analysis is finally assessed to evaluate the effects of an object in proximity to the antenna.