Antenna and Mobile Terminal

An electronic device, comprising an antenna, wherein the antenna comprises:

• a first radiator;
• a first capacitor structure;
• a second radiator;
• and
• a parasitic branch;
• wherein a first end of the first radiator is electrically connected to a signal feed end of a printed circuit board by the first capacitor structure, and a second end of the first radiator is electrically connected to a ground end of the printed circuit board, and the first radiator, the first capacitor structure, the signal feed end, and the ground end are configured to produce a first resonance frequency;
• wherein a first end of the second radiator is electrically connected to the first end of the first radiator, and the second radiator, the first capacitor structure, and the signal feed end are configured to produce a second resonance frequency;
• and
• wherein a first end of the parasitic branch is electrically connected to the ground end of the printed circuit board, and a second end of the parasitic branch and a second end of the second radiator are opposite to each other across a first gap and do not contact each other, and the second end of the parasitic branch and the second end of the second radiator are electrically coupled, and the electrical coupling causes the antenna to produce a third resonance frequency, and a virtual straight line that extends along a major axis of the second radiator passes through a portion of the first radiator and a portion of the parasitic branch.

An electronic device, comprising an antenna, wherein the antenna comprises:

• a first radiator;
• a first capacitor structure;
• a second radiator;
• and
• a parasitic branch;
• wherein a first end of the first radiator is electrically connected to a signal feed end of a printed circuit board by the first capacitor structure, and a second end of the first radiator is electrically connected to a ground end of the printed circuit board, and the first radiator, the first capacitor structure, the signal feed end, and the ground end are configured to produce a first resonance frequency;
• wherein a first end of the second radiator is electrically connected to the first end of the first radiator, and the second radiator, the first capacitor structure, and the signal feed end are configured to produce a second resonance frequency;
• and
• wherein a first end of the parasitic branch is electrically connected to the ground end of the printed circuit board, and a second end of the parasitic branch and a second end of the second radiator are opposite to each other across a first gap and do not contact each other, and the second end of the parasitic branch and the second end of the second radiator are electrically coupled, and the coupling causes the antenna to produce a third resonance frequency, a major axis of the second radiator extends in a first direction, the first radiator does not overlap the second radiator in a second direction that is perpendicular to the first direction, and the parasitic branch does not overlap the second radiator in the second direction.