An antenna structure comprising: a housing, the housing comprising a front frame, a backboard, and a side frame, the side frame positioned between the front frame and the backboard, the side frame comprising an end portion, a first side portion, and a second side portion; the first side portion and the second side portion connect to two ends of the end portion, the side frame defining a slot at least on the end portion, the slot extending to the first side portion and the second side portion, characterized in that the front frame defines a first gap, a second gap, and a groove, the first gap, the second gap, and the groove all communicating with the slot and extending across the front frame, the first gap communicating with a first end of the slot positioned on the first side portion, the second gap communicating with a second end of the slot positioned on the second side portion, the groove positioned between the first end and the second end; a radiating portion and a coupling portion being divided from the housing by the slot, the first gap, the second gap, and the groove; a first portion of the front frame between the first gap and the groove forming the radiating portion, a second portion of the front frame between the second gap and the groove forming the coupling portion, the coupling portion being grounded; a first feed source, the first feed source electrically connected to the radiating portion; a ground portion, one end of the ground portion electrically connected to the radiating portion and another end of the ground portion being grounded; a radiator, the radiator being coupled with and apart from the coupling portion; and a second feed source, the second feed source electrically connected to the radiator; wherein a current from the second feed source is configured to be coupled to the coupling portion through the radiator. a housing, the housing comprising a front frame, a backboard, and a side frame, the side frame positioned between the front frame and the backboard, the side frame comprising an end portion, a first side portion, and a second side portion; the first side portion and the second side portion connect to two ends of the end portion, the side frame defining a slot at least on the end portion, the slot extending to the first side portion and the second side portion, characterized in that the front frame defines a first gap, a second gap, and a groove, the first gap, the second gap, and the groove all communicating with the slot and extending across the front frame, the first gap communicating with a first end of the slot positioned on the first side portion, the second gap communicating with a second end of the slot positioned on the second side portion, the groove positioned between the first end and the second end; a radiating portion and a coupling portion being divided from the housing by the slot, the first gap, the second gap, and the groove; a first portion of the front frame between the first gap and the groove forming the radiating portion, a second portion of the front frame between the second gap and the groove forming the coupling portion, the coupling portion being grounded; a first feed source, the first feed source electrically connected to the radiating portion; a ground portion, one end of the ground portion electrically connected to the radiating portion and another end of the ground portion being grounded; a radiator, the radiator being coupled with and apart from the coupling portion; and a second feed source, the second feed source electrically connected to the radiator; wherein a current from the second feed source is configured to be coupled to the coupling portion through the radiator.