RFID Antenna Coil

The rfid antenna coil is a device that radiates or receives the front-end radio frequency signal in the form of electromagnetic waves.NFC coilIn the system, the antenna is divided into two categories: electronic tag antenna and reader antenna, which respectively undertake the functions of receiving energy and radiating energy. The device that radiates or receives the front-end radio frequency signal in the form of wave is the interface device between circuit and space. It is used to realize the conversion of guided wave and free space wave energy. In the RFID system, the antenna is divided into two categories: electronic tag antenna and reader antenna, which respectively undertake the functions of receiving energy and radiating energy.

Since the invention of wireless communication technology, the communication rate has increased year by year, and the communication frequency has gradually increased. The rapid development of communication technology has brought us into the 5G era. As an important part of the communication process, the NFC coil plays a decisive role in the quality of communication. Role. Technology update means that more devices with communication frequency bands will appear on the market, the compatibility problem between different devices is particularly prominent, and the cost of infrastructure communication infrastructure layout caused by the device compatibility problem is also more prominent, so there is an urgent need to Antennas working in different frequency bands can meet different needs in various application scenarios, save the cost of basic equipment layout and environmental space. This paper takes the problems in the above applications as the starting point, and designs an antenna that can work in 2 frequency bands. .

rfid antenna coil size parameters (mm)