RFID通信システムにおける信号伝搬・干渉特性のFDTD解析

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2013/02/01

タイトル(英語): FDTD Analysis of Signal Propagation and Interference Characteristics for RFID Communication Systems

著者名: 宮崎　保光（愛知工科大学），橋本　忠弘（シンクレイヤ（株）），高橋　港一（愛知工科大学）

著者名(英語): Yasumitsu Miyazaki (Aichi University of Technology), Tadahiro Hashimoto (Synclayer, Inc.), Koichi Takahashi (Aichi University of Technology)

キーワード: RFID，無線通信，伝搬，散乱，FDTD法　　RFID，Radio communication，Propagation，Scattering，FDTD method

要約(英語): In recent years, RFID systems have received much attention in information management and security. For evaluation of RFID systems, study of electromagnetic wave propagation and scattering of UHF wave and microwave transmitted from tag antenna to reader antenna in in-door and out-door is indispensable. In this paper, we describe the characteristics of electromagnetic wave scattering, diffraction and interference by obstacles in propagation channel and show the distribution of received level using FDTD method. In RFID systems, receiving characteristics are strongly influenced by the structure of roads and buildings for out-door environment and rooms, doors and windows for in-door environment. Three-dimensional numerical analysis is studied to evaluate the effects of the earth of roads and building with finite heights for out-door applications and effects of ceil and floor of buildings for in-door applications. Signal processing and control are important to recognize each tag code correctly even if multiple codes from tags are received by a reader simultaneously. In this paper, received characteristics when multiple tags transmit signals modulated by ASK are studied by FDTD method and compared with the analytical results.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.133 No.2 （2013） 特集：省電力時代の電子回路技術

本誌掲載ページ: 260-267 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/133/2/133_260/_article/-char/ja/