The appearance of the nfc access card head is a multi-layer winding copper coil and storage chip, which is directly related to the attributes of the access card. nfc access card as a high frequency of use in daily life card type, its principle is to use the internal storage chip can save the card data, and the internal is composed of a multi-route loop wound near the chip so as to form the appearance of the access card
The NFC access card consists of a chip and a coil. The coil of copper wire is used as the antenna and induction power supply, and the two ends are connected to the power\/signal shared port of the induction chip in the outermost part of the access card