Electronic device

An electronic device, comprising:

• an outer casing comprising a metal ring housing that extends in an axial direction;
• and
• an antenna structure located in the outer casing and comprising a circuit board and a first radiation structure disposed on a side of the circuit board;
• wherein:
• the first radiation structure comprises a first radiation ring and a plurality of stubs, an axial direction of the first radiation ring is disposed at an included angle with the circuit board, the axial direction of the first radiation ring is parallel to the axial direction of the metal ring housing, the plurality of stubs are disposed between the first radiation ring and the circuit board in a circumferential direction of the first radiation ring and are electrically connected to the first radiation ring and the circuit board, the plurality of stubs comprise a feed stub and at least two first grounding stubs, the feed stub is electrically connected to a signal layer of the circuit board and is configured to feed the first radiation ring, and the at least two first grounding stubs are electrically connected to a grounding plane of the circuit board and are used for grounding;
• and
• any two adjacent stubs of the plurality of stubs divide the first radiation ring into a first section and a second section, a length of the second section in the circumferential direction of the first radiation ring is greater than a length of the first section in the circumferential direction of the first radiation ring, the first radiation structure further comprises a plurality of first antenna substructures configured to generate a first resonance, and each first antenna substructure comprises two adjacent stubs and the first section of the first radiation ring is located between the two adjacent stubs.