Effect of Metal Environment on HF RFID Systems

Journal of South China University of Technology (Natural Science Edition) ›› 2008, Vol. 36 ›› Issue (5): 84-88.

• Electronics, Communication & Automation Technology • Previous Articles Next Articles

Effect of Metal Environment on HF RFID Systems

Zhu Hai-long Lai Xiao-zheng Dai Hong-yue Lai Sheng-li

School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China

Received:2007-04-24 Online:2008-05-25 Published:2008-05-25
Contact: 朱海龙（1973-），男，博士生，主要从事RFID相关射频电路和天线技术方面的研究． E-mail:lixiang7312@163．com
About author:朱海龙（1973-），男，博士生，主要从事RFID相关射频电路和天线技术方面的研究．
Supported by:
广东省珠海市科技攻关项目（PC200320010）

Abstract

Abstract:

In order to ensure the high-frequency（HF） Radio Frequency Identification（RFID） in metal environment,the effect of metal plate on the performance of HF RFID system is first simulated by means of HFSS9.0,and the operation of middle-range HF RFID system in metal environment is numerically simulated and analyzed.Then,the distribution characteristics of the magnetic field of reader antenna are provided,and two solutions to the metal plate effect respectively based on the ferrite absorber and on the dimensional tag are discussed.Finally,the concept of omnidirectional tag is presented.The above-mentioned results are proved feasible in the design of tags used in metal environment.

Key words: radio frequency identification, metal, ferrite, dimensional tag, omnidirectional tag

Zhu Hai-long Lai Xiao-zheng Dai Hong-yue Lai Sheng-li. Effect of Metal Environment on HF RFID Systems[J]. Journal of South China University of Technology (Natural Science Edition), 2008, 36(5): 84-88.

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Effect of Metal Environment on HF RFID Systems

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