UHF BAND RFID TAG ANTENNA MOUNTABLE ON METALLIC OBJECT

摘要

An RFID(Radio Frequency Identifier) tag antenna of a UHF band attachable on a metal is provided to implement an antenna performance uniformly irrespective of a position of the antenna by forming a multi-layer metallic unit between a radiation unit and a feeding unit. An RFID(Radio Frequency Identifier) tag antenna of a UHF band attachable on a metal includes a ground unit(10), a first dielectric unit(20), a metallic unit(30), a second dielectric unit(40), and a radiation unit(50). The ground unit grounds a signal of an antenna. The first dielectric unit is formed on an upper layer of the ground unit. The metallic unit is formed on an upper layer of the first dielectric unit. The second dielectric unit is formed on an upper part of the metallic unit. The radiation unit has a bent feeding line and a radiator on an upper layer of the second dielectric unit. The bent feeding line is electrically coupled to a side of the metallic unit. The radiator is coupled to the other side of the bent feeding line.