Development of Optically Transparent Ultrathin Microwave Absorber for Ultrahigh-Frequency RF Identification System
Development of Optically Transparent Ultrathin Microwave Absorber for Ultrahigh-Frequency RF Identification System
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DOI：
10.1109/tmtt.2012.2202680
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发表时间：
2012-08-01
影响因子：
4.3
通讯作者：
Ishikawa, Koji
中科院分区：
文献类型：
--
作者：
Okano, Yoshinobu;Ogino, Satoshi;Ishikawa, Koji
超高频射频识别(RFID)系统的应用正在迅速增加。然而，室内通信的可靠性受到多次反射干扰的不利影响。因此，为了建立一个高可靠的UHF-RFID系统，改善多径环境是必不可少的。为了改善超高频射频识别系统的多径环境，设计了一种超薄吸波材料。这种吸波体是光学透明的，因此它不会为安装在UHF-RFID系统附近(例如，在办公室或仓库的入口处)的监视摄像机创建盲区。在一个实际的仓库中展示了使用该吸收器改进的标签识别概率。
The application of UHF radio-frequency identification (RFID) systems is rapidly increasing. However, the reliability of indoor telecommunication is adversely affected by multiple reflection interference. Consequently, to establish a highly reliable UHF-RFID system, it is essential to improve the multipath environment. This paper describes an ultrathin microwave absorber that is designed to improve the multipath environment of UHF-RFID systems. This absorber is optically transparent so that it does not create blind areas for surveillance cameras installed near an UHF-RFID system (e. g., at the entrance of an office or a warehouse). The improved tag identification probability using this absorber is demonstrated in an actual warehouse.