Wearable device

A wearable device comprising:

• a printed circuit board (PCB);
• an antenna structure comprising:
• a metal frame comprising:
• a first feed point;
• a first ground point;
• and
• a second ground point;
• and
• a first feeding element configured to feed the antenna structure at the first feed point, and the first feed point is disposed between the first ground point and the second ground point;
• and
• a slot formed between the metal frame and the PCB,
• wherein the antenna structure is configured to generate a first resonance, a second resonance, and a third resonance when the first feeding element feeds the antenna structure,
• wherein a first frequency of a first resonance point of the first resonance is less than a second frequency of a second resonance point of the second resonance,
• wherein the second frequency is less than a third frequency of a third resonance point of the third resonance,
• wherein the first resonance comprises first strong current points corresponding to the first ground point and the second ground point,
• wherein the second resonance comprises second strong current points corresponding to the first ground point, the second ground point, and a first point between the first ground point and the second ground point, and
• wherein the third resonance comprises third strong current points corresponding to the first ground point, the second ground point, a second point between the first ground point and the second ground point, and a third point between the first ground point and the second ground point.

A device comprising:

• a printed circuit board (PCB);
• an antenna structure comprising:
• a frame comprising:
• a first feed point;
• a first ground point;
• and
• a second ground point, wherein the frame is divided into a first area and a second area by the first ground point and the second ground point, and wherein a first circumferential length of the first area is greater than a second circumferential length of the second area;
• and
• a first feeding element configured to feed the antenna structure at the first feed point;
• and
• a slot formed between the frame and the PCB,
• wherein the antenna structure is configured to generate a first resonance, a second resonance, and a third resonance when the first feeding element feeds the antenna structure,
• wherein the first resonance comprises first strong current points corresponding to the first ground point and the second ground point,
• wherein the second resonance comprises second strong current points corresponding to the first ground point, the second ground point, and a first point between the first ground point and the second ground point, and
• wherein the third resonance comprises third strong current points corresponding to the first ground point, the second ground point, a second point between the first ground point and the second ground point, and a third point between the first ground point and the second ground point.