Resonant cavity antenna and electronic device

An electronic device, comprising at least one frame antenna and a resonant cavity antenna;

• wherein the frame antenna is located in a first corner or a second corner of the electronic device, and the first corner is adjacent to the second corner;
• wherein:
• when the resonant cavity antenna works in a TE0.5,0,1 mode, the resonant cavity antenna is located at a middle position between a third corner and a fourth corner, and a connection line between the third corner and the fourth corner is parallel to a connection line between the first corner and the second corner;
• or
• when the resonant cavity antenna works in a TE0.5,0,0.5 mode, the resonant cavity antenna is located at a position of the third corner or the fourth corner;
• wherein the resonant cavity antenna comprises:
• an antenna body defining an antenna cavity, wherein the antenna cavity is filled with an insulating medium, wherein at least one edge of a first surface of the antenna body is parallel to a long edge of a display of the electronic device, at least one edge of a second surface of the antenna body is parallel to the long edge of the display, a plane on which the first surface is located intersects a plane on which the second surface is located, the plane on which the first surface is located is parallel to a plane on which the display is located, and the plane on which the display is located is a plane formed by a long axis of the electronic device and a short axis of the electronic device;
• and
• a feeding part;
• wherein a first gap extends in the first surface or the second surface, and at least a part of the first gap extends in a direction of the long edge of the display;
• and
• wherein the feeding part is located inside the antenna cavity, and the feeding part does not contact any surface of the antenna body.