Ultra-thin PDS Near Field Communication Antenna, through the magnetic field with the external field communication

Shenzhen Hydemen Electronics Co., Ltd. (hereinafter referred to as "Hydemen") R & D design of antenna product in the field of wireless transmission is a large domestic mobile phone built-in antenna solution provider and manufacturer, PDS (Printing Direct Structuring, Direct printing production) Antenna technology is also leading the world. PDS is a process of print antenna, which is mainly to apply conductive slurrs to the surface of the workpiece, and then printed through a multilayer printed conductive slurrier to form a conductive stereo circuit. The smartphone will configure the Near Field Communication (NFC) antenna for near-field payment, short-range data transmission, etc., the thickness of smartphones is getting thinner, so the thickness requirements of the near field communication antenna are also increasing The higher it. Hydemen published a ultra-thin PDS near-field communication antenna patent (201711478301.5) in July 2019, the near field communication antenna structure has ultra-thin characteristics, which can be structural requirements for communication devices such as smart phones. It mainly includes a coil layer, coil layer is a coil layer made of a PDS process. The desired pattern is printed onto the carrier by a transfer mode, and the thickness of the coil layer is 0.005 mm to 0.015 mm, and the coil layer is covered. It is also possible to further form a layer of magnetic material, and the magnetic material layer is a ferrite material layer or a ferrite magnetic flexible material layer. The coil layer determines the number of printed circles based on the inductance amount and the resistance size. The specific production process of the near field communication antenna provides two programs, and the coil layer is printed on the housing of the communication device by the PDS process, and the magnetic material layer is attached to the coil layer; or the coil layer passes the PDS process. Printing on the magnetic material layer, the magnetic material layer is laminated against the radio frequency circuit of the communication equipment, the design is flexible, and there is no need to combat it, it is very suitable for industrial production. Specifically, as shown in FIGS. 1 and 2, the near field communication antenna is formed on the housing 11 of the communication device, and is a ring-shaped coil layer 21, which is a PDS process technology, and direct printing in the form of a conductive slurry in combination of ink. On the magnetic material layer 22 or the inner side of the communication device housing 11, the adhesive surface of the magnetic material layer 22 is pasted on the radio frequency circuit 12. The radio frequency circuit 12 provides an alternating current to the coil layer 21 of the PDS process, thereby forming an annular alternating current of the closed circuit, and the alternating current will be formed in the direction of the vertical current loop under the action of the magnetic material layer 22. A stronger magnetic field, that is, through the magnetic field, near-field communication. Be Article source network