Antenna structure

The invention discloses an antenna structure which comprises a first radiation part, a second radiation part, a third radiation part, a fourth radiation part, a fifth radiation part and a dielectric substrate. The first radiation part is provided with a feed-in point. The second radiation part is coupled to the first radiation part. The third radiation part is coupled to a first grounding point. The third radiation part is further coupled to a second grounding point through the fourth radiation part. The fifth radiation part is coupled to the third radiation part and the fourth radiation part, wherein the fifth radiation part is adjacent to the second radiation part. The first radiation part, the second radiation part, the third radiation part, the fourth radiation part and the fifth radiation part are all arranged on the dielectric substrate. The first radiation part and the second radiation part are at least partially surrounded by the third radiation part, the fourth radiation part and the fifth radiation