Antenna structure and electronic device with antenna structure

Abstract

To provide an antenna structure including a frame body, a first feed-in part and a first connection part.SOLUTION: A frame body is made at least partially of a metal material. The frame body includes at least a first part and a second part. The second part is connected to one end of the first part. Length of the second part is greater than length of the first part. The first part is provided with a first slot; the second part is provided with a second slot. A part of the frame body between a first slot and a second slot forms a first radiation part. A first feed-in part is arranged in the first radiation part and is located at the first part of the frame body. The first feed-in part is electrically connected to a first feed for supplying the first radiation part with a current signal. The first connection part is arranged in the first radiation part and is located at the second part of the frame body. An antenna structure is capable of effectively improving low band (LB) radiation performance. The present invention further provides an electronic device having the antenna structure.SELECTED DRAWING: Figure 3

Description

It will not be published because it violates public order and morals.

Claims

1. 1. An antenna structure for an electronic device, the antenna structure comprising: a frame body, a first feed-in portion, and a first connecting portion, the frame body being at least partially made of a metal material, the frame body comprising at least a first portion and a second portion, the second portion being connected to one end of the first portion, a length of the second portion being greater than a length of the first portion, a first slot being provided in the first portion, a second slot being provided in the second portion, a portion of the frame body between the first slot and the second slot forming a first radiating portion, the first feed-in portion being disposed in the first radiating portion and located in the first portion of the frame body, the first feed-in portion being electrically connected to a first feed to supply a current signal to the first radiating portion, and the first connecting portion being disposed in the first radiating portion and located in the second portion of the frame body.

2. 2. The antenna structure of claim 1, further comprising a first tuning unit, one end of the first tuning unit being electrically connected to the first feed-in section and the other end of the first tuning unit being grounded, the first tuning unit comprising a first tuning branch, a second tuning branch, and at least one first switch unit, the first tuning branch comprising a capacitor or an inductor, and the second tuning branch comprising a capacitor or an inductor.

3. 3. The antenna structure according to claim 1 or 2, further comprising a second tuning unit, one end of the second tuning unit being electrically connected to the first connection and the other end being grounded, the second tuning unit comprising a third tuning branch, a fourth tuning branch, and at least one second switch unit, the third tuning branch comprising a capacitor or an inductor, and the fourth tuning branch comprising a capacitor or an inductor.

4. 4. The antenna structure of claim 1, further comprising a third slot in the first portion, the third slot and the first slot being spaced apart, the first slot being closer to the second slot than the third slot, and a portion of the frame body between the first slot and the third slot forms a parasitic stub of the first radiating portion, enabling the antenna structure to generate an additional resonance.

5. 4. The antenna structure of claim 3, wherein the frame body further includes a third portion, the third portion and the second portion facing each other and connected to the other end of the first portion, the first portion further includes a third slot, the third slot and the first slot are spaced apart, the first slot is closer to the second slot than the third slot, a ground point is located on the third portion, and a portion of the frame body between the ground point and the third slot forms a second radiating portion, the antenna structure further includes a second feed-in portion, the second feed-in portion is located on the second radiating portion and is located on the first portion of the frame body, the second feed-in portion is electrically connected to a second feed and provides a current signal to the second radiating portion.

6. 6. The antenna structure of claim 5, wherein a portion of the frame body between the first slot and the first connecting portion forms a parasitic stub of the second radiating portion, the parasitic stub of the second radiating portion configured to distribute a current distribution on the second radiating portion.

7. 7. The antenna structure according to claim 5 or 6, further comprising a second connection portion, the second connection portion being disposed on the first radiating portion and located on the second portion of the frame body, a distance from the second connection portion to the second slot being greater than a distance from the first connection portion to the second slot, and the second connection portion being grounded using the second tuning unit.

8. 8. The antenna structure according to claim 5, further comprising a third connection portion and a third tuning unit, the third connection portion being disposed on the second radiating portion and located on the first portion of the frame body, the third connection portion being closer to the third portion than the second feed-in portion, one end of the third tuning unit being electrically connected to the third connection portion and the second feed-in portion and the other end being grounded, the third tuning unit including a fifth tuning branch, a sixth tuning branch, and at least one third switch unit, the fifth tuning branch including a capacitor or an inductor, and the sixth tuning branch including a capacitor or an inductor.

9. 9. The antenna structure according to claim 1, wherein the frame body is a metal frame of the electronic device, the first part is a bottom metal frame of the electronic device, and the second part is a side metal frame of the electronic device.

10. The antenna structure according to claim 1 , wherein the frame body is disposed on a chassis of the electronic device and is integrated with the chassis by insert molding.

11. An electronic device comprising an antenna structure according to any one of claims 1 to 10.

12. 12. The electronic device of claim 11, further comprising a backplate and a display unit, the backplate being disposed on an edge of the frame body and the display unit being disposed on a side of the frame body away from the backplate.

13. An electronic device, comprising an antenna structure, the antenna structure including a frame body, the frame body being at least partially made of a metal material, the frame body including at least a first part, a second part, and a third part, the second part and the third part facing each other and connected to two ends of the first part, a length of the second part and a length of the third part being greater than a length of the first part, respectively, a first slot, a second slot, and a third slot being provided in the frame body, the first slot and the third slot being provided in the first part with a space therebetween, and the second slot being provided in the second part. an electronic device comprising: a first slot disposed closer to the second slot than the third slot; a portion of the frame body between the first slot and the second slot forming a first radiating portion; a ground point disposed on the third portion; a portion of the frame body between the ground point and the third slot forming a second radiating portion; a first feed-in portion disposed on the first radiating portion, the first feed-in portion located on the first portion of the frame body to supply a current signal to the first radiating portion; and a second feed-in portion disposed on the second radiating portion, the second feed-in portion located on the first portion of the frame body to supply a current signal to the second radiating portion.

14. 14. The electronic device of claim 13, wherein the antenna structure further comprises a first tuning unit, one end of the first tuning unit being electrically connected to the first feed-in section and the other end being grounded, the first tuning unit comprising a first tuning branch, a second tuning branch, and at least one first switch unit, the first tuning branch comprising a capacitor or an inductor, and the second tuning branch comprising a capacitor or an inductor.

15. 15. The electronic device of claim 13 or 14, wherein the antenna structure further comprises a first connection portion, a second connection portion, and a second tuning unit, the first connection portion and the second connection portion being spaced apart from each other on the first radiating portion and located on the second portion of the frame body, a distance from the second connection portion to the second slot being greater than a distance from the first connection portion to the second slot, one end of the second tuning unit being electrically connected to the first connection portion and the second connection portion and the other end being grounded, the second tuning unit comprising a third tuning branch, a fourth tuning branch, and at least one second switch unit, the third tuning branch comprising a capacitor or an inductor, and the fourth tuning branch comprising a capacitor or an inductor.

16. 16. The electronic device of claim 13, wherein a portion of the frame body between the first slot and the third slot forms a parasitic stub of the first radiating portion to enable the antenna structure to generate an additional resonance.

17. 16. The electronic device of claim 15, wherein a portion of the frame body between the first slot and the first connection forms a parasitic stub of the second radiating portion, the parasitic stub of the second radiating portion configured to distribute a current distribution on the second radiating portion.

18. 14. The electronic device of claim 13, wherein the antenna structure further comprises a third connection portion and a third tuning unit, the third connection portion being disposed on the second radiating portion and located on the first portion of the frame body, the third connection portion being closer to the third portion than the second feed-in portion, one end of the third tuning unit being electrically connected to the third connection portion and the second feed-in portion and the other end being grounded, the third tuning unit including a fifth tuning branch, a sixth tuning branch, and at least one third switch unit, the fifth tuning branch comprising a capacitor or an inductor, and the sixth tuning branch comprising a capacitor or an inductor.

19. 19. The electronic device of claim 13, wherein the frame body is a metal frame of the electronic device, the first part is a bottom metal frame of the electronic device, and the second part and the third part are side metal frames of the electronic device.

20. The electronic device according to claim 13 , further comprising a chassis, and the frame body is disposed within the chassis and integrated with the chassis through insert molding.

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