FDTD Analysis of Electromagnetic Wave Propagation for Out-door Active RFID System
In recent years, RFID systems have received much attention in security, logistics and medical fields. However, most of these systems are used at in-door and the RF tags are passive tags that are controlled by reader. We consider to use active RFID system of very weak UHF electromagnetic waves at out-door. In this paper, we describe the characteristics of electromagnetic wave propagation by RF tags using FDTD method. In transmit and receive points of the weak electromagnetic wave, receive characteristics are influenced by the established environment. We consider the road models as this environment. RF tags are carried by the human on the road, and the readers are installed on the electric pole and connected to the cable network. As out-door models, we consider road models of three types, the straight road, the T-type road and the cross road and numerical results of maximum receiving intensity of the electric fields in these models are shown.
Yasumitsu Miyazaki Tadahiro Hashimoto Koichi Takahashi
Department of Media Informatics,Aichi University of Technology 50-2 Manori,Nishihasama-cho,Gamagori Broadband Technology Department,Synclayer,Inc.1-20 Himegaoka,Kani 509-0249,Gifu,Japan Department of Media Informatics,Aichi University of Technology 50-2 Manori,Nishihasama-cho,Gamagori
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
1429-1433
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）