Development of Optically Transparent Ultrathin Microwave Absorber for Ultrahigh-Frequency RF Identification System

被引：90

作者：

Okano, Yoshinobu ^{[1
]}

Ogino, Satoshi ^{[2
]}

Ishikawa, Koji ^{[3
]}

机构：

[1] Musashi Inst Technol, Setagaya Ku, Tokyo 1588557, Japan

[2] Microwave Absorber Inc, Tokyo 1110053, Japan

[3] Toppan Forms Co, Tokyo 1058311, Japan

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2012年 / 60卷 / 08期

关键词：

Finite difference time domain (FDTD); tag identification probability; transparent; UHF RF identification (UHF-RFID) system; ultrathin microwave absorber; UHF;

D O I：

10.1109/TMTT.2012.2202680

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：2456 / 2464

页数：9

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