NFC ANTENNA APPLIED TO TERMINAL WITH METAL BACK COVER AND TERMINAL DEVICE THEREOF, BACK COVER FOR TERMINAL DEVICE

摘要

The present invention discloses an NFC antenna comprising a back cover mounted on a back portion of a terminal and an NFC coil placed inside the terminal. The back cover comprises a metal area and a nonmetal area positioned at an upper portion of the metal area. A middle portion of a junction between the metal and nonmetal areas is provided with a slot extending from top to bottom for a certain length. A metal strip protruding through the nonmetal area from inside to outside is disposed in the nonmetal area at an upper portion of the slot. An NFC feed coil is disposed below the slot. Both ends of a bottom portion of the metal strip are connected with the NFC feed coil, such that a loop circuit is formed between the metal strip and the NFC feed coil and an NFC signal is produced at the metal area.