Card reader induction antenna coil

Card reader NFC coil technology is mainly used in the field of mobile communication to realize the functions of smart phone antenna and mobile payment. At present, almost all well-known manufacturers of smart phones have related models using this technology. In addition, this technology also It is widely used in automobiles, electronics, computers, electromechanical equipment, medical equipment and other industries. There are many forms of antennas, which can be divided into sending antennas and receiving antennas according to their uses; Ultrashortwave antennas, microwave antennas, microstrip antennas, etc. In addition, we can also classify them according to their working principles and structures.

In order to facilitate the analysis and study of the performance of the antenna, the NFC coil antenna is generally divided into two categories according to its structure: one is a linear antenna composed of a metal wire with a radius much smaller than the wavelength, and the other is a metal wire with a size larger than the wavelength. Or a planar antenna composed of a dielectric surface.

Card reader induction antenna coil size parameters (mm)