超薄双频超表面用于UHF-RFID和WLAN应用

2021 IEEE International Conference on RFID Technology and Applications (RFID-TA) Pub Date : 2021-10-06 DOI:10.1109/RFID-TA53372.2021.9617349

Sayan Sarkar, B. Gupta

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引用次数: 1

摘要

本文提出了一种超薄双频超表面，该超表面在865MHz UHF-RFID频段具有线性到圆偏振转换反射带，在2.45GHz WLAN频段具有共极化传输带。当在超表面前放置线极化的UHF-RFID读取器天线时，天线的线极化波经过超表面反射后转化为圆极化波。这种反射的圆极化波可以用来检测RFID标签。一旦从标签收集到所需的信息，RFID阅读器就可以通过2.45GHz的WLAN频段通过元表面传输该信息。这是可能的，因为超表面的通带在2.45GHz。因此，超表面在865MHz的反射模式下工作，在2.45GHz的传输模式下工作。超表面对于TE和TM入射都具有20°的角稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Ultrathin Dual-Band Metasurface for UHF-RFID and WLAN Applications

This paper presents an ultrathin dual-band metasurface which exhibits a linear-to-circular polarization conversion reflection band at the 865MHz UHF-RFID band and a co-polarized transmission band at the 2.45GHz WLAN band. When a linearly polarized UHF-RFID reader antenna is placed in front of the metasurface, the linearly polarized wave of the antenna is converted to a circularly polarized wave after reflection from the metasurface. This reflected circularly polarized wave can be used to detect RFID tags. Once the required information is collected from the tags, the RFID reader can then transmit this information via the 2.45GHz WLAN band through the metasurface. This is possible because of the pass-band of the metasurface at 2.45GHz. The metasurface therefore acts in the reflection mode at 865MHz and in the transmission mode at 2.45GHz. The metasurface has an angular stability of 20° for both TE and TM incidence.

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来源期刊

2021 IEEE International Conference on RFID Technology and Applications (RFID-TA)

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