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手机钱包(NFC)隔磁片有称隔磁材料或*金属材料
在NFC支付型手机(*限125KHz和13.56MHz,非2.4G)中,因空间有限,回型天线标签要贴合到手机后盖壳和电池之间,这样一来,回型天线标签在非接POS机、自动售卖机等RFID读卡设备发出的信号作用下激发感应出的交变电磁场很容易受到金属(电池)的涡流衰减作用而使信号强度大大减弱,导致读取过程失败。因此,为了产品能够更好的应用读卡,需要在产品中增加吸波材料用于*NFC手机在读卡灵敏度及读卡距离。
In the NFC payment t*e mobile phone (only 125 KHZ and 13.56 MHz, not 2.4 G), in this space is limited, return t*e antenna tag should be jointed to mobile phone cover shell and battery between, in this way, return t*e antenna tag in the joint POS machine, automatic vending machine etc RFID card read equipment signals sent out under the action of excitation induction of alternating electromagnetic field is very vulnerable to metal (cell) of eddy current attenuation effect and make the signal intensity is greatly abate, lead to read failure process. Therefore, in order to products can be better application card read, need to increase product absorbing material used to improve NFC mobile reading card sensitivity and card read distance.
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