NFC天线场强及频率特性研究

NFC天线场强及频率特性研究

内容简介：NFC 技术是目前发展迅速、应用广泛的RFID技术之一。文章主要研究了NFC的空间场强和工作频率的物理特性，通过理论计算得出空间位置的场强变化并指出了NFC线圈的最佳匝数。对金属材料的涡流特性和铁氧体材料的屏蔽效果分别进行了仿真，指出相对位置的规律。通过阻抗匹配的方法对NFC线圈进行调谐，分别研究了相同频率和不同频率的线圈之间的能量传递问题。

Abstract：NFC is a rapidly developed and widely used RFID technology. This paper mainly studied the physical characteristics of NFC space field strength and frequency. Based on theoretical calculation we obtained the field strength variation of spatial posi-tion and the optimum number of turns of the coil. The vortex property of metal materials and shielding effect of ferrite material was simulated and the rules of relative position were found. We tuned the NFC coil by impedance matching method and investigated the energy transmission between the coils at the same frequency of different frequencies.

作者：戴昌金, 王智玮, 李光, 杨军,

关键词：NFC, 空间场强, 阻抗匹配, 材料特性, 能量传递,