Electronic device and antenna structure

An antenna structure, comprising:

• a substrate;
• a first radiating portion disposed on the substrate;
• a second radiating portion disposed on the substrate and connected to the first radiating portion, wherein the second radiating portion is used to couple with a feeding element, and a signal is fed through the feeding element;
• a grounding portion disposed on the substrate;
• a shorting portion connected between the second radiating portion and the grounding portion and disposed closer to the grounding portion than the first radiating portion, the shorting portion comprising a first section, a second section, and a third section, wherein the first section is connected to the second radiating portion, and the third section is connected between the second section and the grounding portion;
• a third radiating portion disposed on the substrate;
• a first grounding extension portion connected between the third radiating portion and the grounding portion;
• and
• a first capacitive element disposed on the substrate and coupled between the first section and the second section;
• wherein the shorting portion, the first grounding extension portion, and the third radiating portion couple with each other to generate a first operating frequency band, the first radiating portion, the shorting portion, the first grounding extension portion, and the third radiating portion couple with each other to generate a second operating frequency band through a matching of the first capacitive element, and the second operating frequency band is higher than the first operating frequency band;
• wherein the third section is located between the first radiating portion and the grounding portion, and the first radiating portion is located between the third section and the third radiating portion.