The RFID tag antenna is a transponder antenna of an RFID electronic tag and is a communication sensing antenna. A complete RFID electronic tag transponder is generally formed with the chip. At present, RFID tag antennas are classified into metal etched antennas, printed antennas, and copper-plated antennas due to different materials and manufacturing processes.
In the past few years, the printed antennas were relatively hot, and they were gradually eliminated by the market because of the unreliable consistency of the finished electrical properties and the service life. Although printed antennas have the advantage of a short production cycle. In recent years, with the development of nanotechnology, nano silver paste antennas have emerged. However, due to the reliability issue, it has been delayed to open the market.