The invention discloses an anti-
metal wireless radio frequency identification tag with a charged anti-metasurface, belongs to the technical field of
wireless radio frequency identification, and aims to solve the performance defects of poor signals, short
reading distance and the like of an RFID tag in the prior art in severe and complex electromagnetic environments such as a
metal surface and the like. The RFID tag comprises an RFID tag body, a
metal circular ring is arranged on a
dielectric plate of the RFID tag body, an antenna interface of an RFID
chip is welded on the metal circular ring, the metal circular ring inductively couples and feeds a
dipole antenna, one end, close to the metal circular ring, of the
dipole antenna is bent into an arc-shaped section, and the other end, close to the metal circular ring, of the
dipole antenna is welded on the metal circular ring. The arc-shaped section annularly wraps the outer side of the metal circular ring, and a
reactance metasurface is arranged below the RFID tag body. The
reactance metasurface comprises a
dielectric panel, a plurality of metal rectangular patches are arranged on the
dielectric panel, and the metal rectangular patches are distributed on the dielectric panel in an array mode. The invention is suitable for the
radio frequency identification tag.