ANTENNA FOR A USAGE IN MULTIPLE FREQUENCY BANDS, AND, ANTENNA SYSTEM THEREOF

摘要

An antenna capable of being used in multiple frequency bands and an antenna system using the same are provided to resonate in multiple frequency bands by appropriately arranging a forming position of a radiator and a feeding part. An antenna comprises a substrate(110), a radiator(120), and a feeding part(130). The radiator is formed on one surface of the substrate, and includes a ground part(121), a slot forming part(123), and a connection part(122). The ground part is formed on one surface of the substrate. A slot(140) is formed between the ground part and the slot forming part. One side of the slot is closed. The other side of the slot is opened. The connection part connects the slot forming part to the ground part. The feeding part is formed on the other surface of the substrate, passes a region corresponding to a position between a center of the slot and a closed surface of the slot, and includes at least one or more switch. The switch controls a dimension of a feeding region.