Meanwhile, the present invention provides a back cover for a portable terminal disposed on a back surface of a portable terminal main body, wherein the back cover including a mesh body in which a plurality of weft threads and a plurality of warp threads each formed of a metal material are arranged to form a plurality of through holes, and a protection layer that covers the mesh body or is filled in the through hole.
The plurality of weft threads and the plurality of warp threads may be electrically insulated from each other.
The protection layer may be formed of a nonconductive and nonmagnetic material.
Meanwhile, the present invention provides a back cover-integrated antenna module including the above-described back cover for a portable terminal, at least one antenna disposed in the back cover and operating at a predetermined frequency band, and a magnetic field shielding sheet disposed on one surface of the antenna to shield a magnetic field generated from the antenna so that the magnetic field is focused in a predetermined direction.
The antenna may be attached to an inner surface of the back cover through an adhesive member having nonconductivity.
The antenna may be any one of a WPT antenna, an MST antenna, and an NFC antenna or be a combo type including at least two antennas of a WPT antenna, an MST antenna, and an NFC antenna.
A heat-radiation sheet for heat radiation may be stacked on one surface of the magnetic field shielding sheet.
According to the present invention, even when a back cover of a portable terminal is formed of a metal material, an antenna can perform a function by reducing generation of an eddy current through a pattern portion so that a wireless charging method can be applied.