Printed dipole antenna loaded with metasurface

The invention discloses a printed dipole antenna loaded with a metasurface, the antenna comprises a printed dipole, a reflecting plate, a patch parasitic unit, a metasurface structure, a microstrip balun feed and a support column, the reflecting plate comprises three layers of dielectric plates and a copper-clad layer, the copper-clad layer is arranged on the top surface of the dielectric plate, and the three layers of dielectric plates are connected through the support column; the printed dipole and the patch parasitic unit are arranged on the second dielectric plate; the metasurface structure is arranged on the surface of the third-layer dielectric plate and is fixed above the printed dipole through a supporting column; the microstrip balun feeder is arranged on the back surface of the printed dipole, and the microstrip line is connected with a conductor pin of the SMA interface; the patch parasitic unit comprises a vertical patch parasitic unit and a horizontal patch parasitic unit; the vertical patch para