Electronic device and antenna structure

Abstract

This invention discloses an electronic device comprising a metal housing and an antenna structure. The antenna structure includes a carrier, a grounding metal component, a radiating component, and a grounded radiating component. The grounding metal component, the radiating component, and the grounded radiating component are disposed on the carrier. The grounding metal component is electrically connected to the metal housing. The radiating component includes a feed portion, a first radiating portion, a second radiating portion, and a third radiating portion. The first and second radiating portions are connected to the feed portion and extend towards both sides of the feed portion, respectively. The third radiating portion is connected to the feed portion. The grounded radiating component is connected to a second grounding metal component. The second radiating portion is closer to the grounded radiating component than the first and third radiating portions.

Claims

1. An electronic device comprising: A metal housing, comprising a first housing and a second housing; An antenna structure is provided, disposed between the first housing and the second housing. The antenna structure includes: a carrier; a grounding metal member disposed on the carrier and electrically connected to the metal housing, the grounding metal member including a first grounding metal portion and a second grounding metal portion; a radiating element disposed on the carrier and located between the first grounding metal portion and the second grounding metal portion, the radiating element including a feed portion, a first radiating portion, a second radiating portion and a third radiating portion, the feed portion being electrically connected to the feed element, the first radiating portion and the second radiating portion being connected to the feed portion and extending toward both sides of the feed portion respectively, the third radiating portion being connected to the feed portion; and a grounding radiating element disposed on the carrier and connected to the second grounding metal portion, wherein the second radiating portion is closer to the grounding radiating element than the first radiating portion and the third radiating portion.

2. The electronic device as claimed in claim 1, wherein, The antenna structure also includes a first parasitic metal component and a second parasitic metal component connected to the second grounded metal part, and the radiating component is disposed between the first parasitic metal component and the second parasitic metal component.

3. The electronic device as claimed in claim 1, wherein, The antenna structure also includes a first extended metal member and a second extended metal member, which are respectively disposed on both sides of the radiating member, and the first extended metal member and the second extended metal member are connected to the first housing and the second housing.

4. The electronic device as claimed in claim 3, wherein, The first extended metal member includes a first extension and a second extension. The first extension is connected to the first grounded metal part, and the second extension is connected to the second grounded metal part. The first extension and the second extension are separated from each other and do not directly contact each other. The second extended metal member includes a third extension and a fourth extension. The third extension is connected to the first grounded metal part, and the fourth extension is connected to the second grounded metal part. The third extension and the fourth extension are separated from each other and do not directly contact each other.

5. The electronic device as claimed in claim 4, wherein, The antenna structure also includes a first capacitor element and a second capacitor element. The first capacitor element is electrically connected between the first extension and the second extension, and the second capacitor element is electrically connected between the third extension and the fourth extension.

6. The electronic device as claimed in claim 3, wherein, The feeder is used to feed a signal to the feeder section to excite the first radiating section and the second radiating section, and to couple the second radiating section to the ground radiating section, so that the first radiating section, the second radiating section, the ground radiating section, the first extended metal section and the second extended metal section together generate a first operating frequency band.

7. The electronic device as claimed in claim 6, wherein, The carrier has a first surface and a second surface disposed opposite to each other, and a third surface and a fourth surface disposed opposite to each other, the third surface and the fourth surface being connected between the first surface and the second surface; wherein, the first grounding metal portion and the second grounding metal portion are disposed on the first surface, the grounding metal member further extends to the second surface, the third surface and the fourth surface, the portion of the grounding metal member located on the third surface is electrically connected to the first housing, and the portion of the grounding metal member located on the fourth surface is electrically connected to the second housing.

8. The electronic device as claimed in claim 7, wherein, The carrier has a thickness defined as the distance between the first surface and the second surface, and the thickness is not greater than 1 / 10 of the wavelength of the first operating frequency band.

9. The electronic device as claimed in claim 1, wherein, There is a minimum gap between the first radiating part and the second grounded metal part, between the third radiating part and the first grounded metal part, and between the second radiating part and the grounded radiating element. The minimum gap is no greater than 3 mm.

10. The electronic device as claimed in claim 1, wherein, The antenna structure also includes a first inductor and a second inductor. The first inductor is electrically connected between the first radiating part and the first grounded metal part, and the second inductor is electrically connected between the second radiating part and the grounded radiating element.

11. The electronic device as claimed in claim 1, wherein, The carrier includes a dielectric substrate and a metal frame. The grounding metal element, the radiating element and the grounding radiating element are disposed on a surface of the dielectric substrate, which faces the first housing. The dielectric substrate is disposed on the metal frame, which has a cavity inside. The metal frame is electrically connected to the second housing.

12. The electronic device as claimed in claim 11, wherein, The metal frame includes a first frame, a second frame, and a third frame. The first frame and the second frame are connected to opposite sides of the third frame. The first frame is electrically connected to the first grounded metal part, and the second frame is electrically connected to the second grounded metal part.

13. The electronic device as claimed in claim 12, wherein, The metal frame has openwork on both sides, so that the length of the first or second frame is less than the length of the third frame.

14. An antenna structure, comprising: One carrier; A grounding metal component is disposed on the carrier, the grounding metal component including a first grounding metal part and a second grounding metal part; A radiating element is disposed on the carrier and located between the first grounded metal portion and the second grounded metal portion. The radiating element includes a feed portion, a first radiating portion, a second radiating portion, and a third radiating portion. The feed portion is electrically connected to the feed element. The first radiating portion and the second radiating portion are connected to the feed portion and extend toward both sides of the feed portion, respectively. The third radiating portion is connected to the feed portion. A grounding radiating element is disposed on the carrier and connected to the second grounded metal portion, wherein the second radiating portion is closer to the grounding radiating element than the first radiating portion and the third radiating portion.

15. The antenna structure as described in claim 14, wherein, The antenna structure also includes a first parasitic metal component, a second parasitic metal component, a first extended metal component, and a second extended metal component, which are connected to the second grounded metal part. The radiating element is disposed between the first parasitic metal component and the second parasitic metal component, and the first extended metal component and the second extended metal component are respectively disposed on both sides of the radiating element.

16. The antenna structure as described in claim 15, wherein, The carrier has a first surface and a second surface disposed opposite to each other, and a third surface and a fourth surface disposed opposite to each other, the third surface and the fourth surface being located between the first surface and the second surface; wherein, the first grounding metal portion and the second grounding metal portion are disposed on the first surface, and the grounding metal portion further extends to the second surface, the third surface and the fourth surface.

17. The antenna structure as described in claim 16, wherein, The feeder is used to feed a signal to the feed section to excite the first radiating section and the second radiating section, and to couple the second radiating section to the ground radiating section, so that the first radiating section, the second radiating section, the ground radiating section, the first extended metal section and the second extended metal section together generate a first operating frequency band; the carrier has a thickness defined as the distance from the first surface to the second surface, and the thickness is not greater than 1 / 10 of the wavelength of the first operating frequency band.

18. The antenna structure as described in claim 14, wherein, The carrier includes a dielectric substrate and a metal frame. The grounding metal element, the radiating element and the grounding radiating element are disposed on a surface of the dielectric substrate. The dielectric substrate is disposed on the metal frame, and the metal frame has a cavity inside.

19. The antenna structure as described in claim 18, wherein, The metal frame includes a first frame, a second frame, and a third frame. The first frame and the second frame are connected to opposite sides of the third frame. The first frame is electrically connected to the first grounded metal part. The length of the first frame or the second frame is less than the length of the third frame.

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