ANTENNA DEVICE AND MOBILE TERMINAL
The present disclosure provides an antenna device including a radio frequency transceiving circuit; a matching circuit electrically coupled to the radio frequency transceiving circuit; and a metal housing provided with at least one micro-seam band, an edge of the metal housing including an arc-shaped section, the at least one micro-seam including an arc-shaped part matching the arc-shaped section. The radio frequency transceiving circuit is electrically coupled to the metal housing through the matching circuit, such that the metal housing is used as a radiating body of the antenna device. The metal housing is grounded through a grounding wire provided with an on-off switch configured to control the grounding wire. The micro-seam band includes three to twenty arc-shaped micro-seams, a metal strip is formed between the adjacent micro-seams, and the metal strip has the same material as the metal housing. The present disclosure further provides a mobile terminal.
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The application is a continuation application of U.S. patent application Ser. No. 15/749,047, filed on Jan. 30, 2018, which is a National Stage entry of International Patent Application No. PCT/CN2017/077163, filed on Mar. 18, 2017, which is based on and claims priority to Chinese Patent Application Serial No. 201610161254.0, filed on Mar. 18, 2016, the entire content of which is incorporated herein by reference.
FIELDThe present disclosure relates to a field of mobile communication technology, and more particularly, to an antenna device and a mobile terminal.
BACKGROUNDAn all-metal housing becomes more and more popular among consumers on the market, but considering the limitations of an antenna device, a housing made of a metal and non-metal combination is usually adopted, and the antenna device is located in a non-metal zone to avoid shielding a signal of the antenna device.
A housing of a mobile terminal at present often employs a three-section structure, i.e. a metal zone in the middle of the housing is separated from metal zones at two ends of the housing by an isolation strip filled with a signal non-shielding material. The antenna device is arranged adjacent to the isolation strip to prevent its signal from being shielded. The isolation strip will however be clearly seen by the consumers, affecting the overall appearance of the housing of the mobile terminal.
SUMMARYThe present disclosure aims to provide an antenna device that can guarantee the overall appearance effect of a mobile terminal, and simultaneously prevent a signal of the antenna device from being interfered and increase bandwidth of the antenna device. The present disclosure provides an antenna device, and the antenna device includes a radio frequency transceiving circuit; a matching circuit, electrically coupled to the radio frequency transceiving circuit; and a metal housing, an edge of the metal housing including an arc-shaped section, the metal housing being provided with at least one micro-seam band, the at least one micro-seam band including an arc-shaped part, the arc-shaped part matching the arc-shaped section of the metal housing, in which the radio frequency transceiving circuit is electrically coupled to the metal housing by means of the matching circuit, such that the metal housing is used as a radiating body of the antenna device, the metal housing is grounded by means of a grounding wire, and the grounding wire is provided with an on-off switch configured to control the grounding wire; in which the micro-seam band includes three to twenty arc-shaped micro-seams, a metal strip is formed between the adjacent micro-seams, and the metal strip has the same material as the metal housing.
The present disclosure further provides a mobile terminal including the above antenna device.
To describe technical solutions in embodiments of the present disclosure or in the related art more clearly, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the related art. Obviously, the accompanying drawings described below show some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these drawings without paying creative efforts.
Technical solutions in embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the embodiments described herein are only a part but not all of the embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without paying creative efforts, fall into the protection scope of the present disclosure.
Referring to
The micro-seam band 130 illustrated in
It should be noted that three to twenty micro-seams 1301 can be provided in the micro-seam band 130, and the number of the micro-seams 1301 needs to be set according to practical requirements, for example, satisfying an appearance requirement of the metal housing 13 and a radiation condition of the electromagnetic signal of the antenna device 100.
As illustrated in
Referring to
Referring to
It should be noted that the micro-seams 1301, 2301 or 3301 can cross with each other. The micro-seam 1301, 2301 or 3301 can also extend throughout or extend partially along a long edge of the metal housing 13, 23 or 33. The specific structure can be determined based on the appearance requirements and particular parameters of the antenna device. The metal housing 13, 23 or 33 can be a front case or a rear cover of a mobile terminal, and can also be a lateral frame of the mobile terminal.
In addition, a radio frequency transceiving circuit 31 and a matching circuit 32 may both be provided within the mobile terminal. The mobile terminal can refer to any computer apparatus used on the move, including but not limited to mobile phones, laptops, tablet computers, POS machines, in-car computers, cameras, etc.
The above only reveals preferred embodiments of the present disclosure, and certainly cannot be used to limit the scope of the present disclosure. Those skilled in the art can understand that all or part of the processes of the above embodiments may be implemented and that equivalent changes based on the claims of the present disclosure still fall into the scope of the present disclosure.
Claims
1. An antenna device, comprising:
- a radio frequency transceiving circuit;
- a matching circuit, electrically coupled to the radio frequency transceiving circuit; and
- a metal housing, an edge of the metal housing comprising an arc-shaped section, the metal housing being provided with at least one micro-seam band, the at least one micro-seam band comprising an arc-shaped part, the arc-shaped part matching the arc-shaped section of the metal housing, wherein the radio frequency transceiving circuit is electrically coupled to the metal housing by means of the matching circuit, such that the metal housing is used as a radiating body of the antenna device, the metal housing is grounded by means of a grounding wire, and the grounding wire is provided with an on-off switch configured to control the grounding wire;
- wherein the micro-seam band comprises three to twenty arc-shaped micro-seams, a metal strip is formed between the adjacent micro-seams, and the metal strip has the same material as the metal housing.
2. The antenna device according to claim 1, wherein each of the micro-seams has a seam width of 0.03 mm.
3. The antenna device according to claim 2, wherein one micro-seam band is provided and extends non-penetratingly from the edge of the metal housing to an interior of the metal housing, such that parts of the metal housing at both sides of the micro-seam band are coupled into a whole.
4. The antenna device according to claim 2, wherein one micro-seam band is provided and divides the metal housing into two independent metal zones, and the two metal zones are electrically coupled to the matching circuit and the grounding wire correspondingly.
5. The antenna device according to claim 2, wherein one micro-seam band is provided and divides the metal housing into two independent metal zones, and one of the metal zones is electrically coupled to the matching circuit and the grounding wire.
6. The antenna device according to claim 2, wherein two micro-seam bands are provided, and divide the metal housing into a first metal zone located in the middle, and a second metal zone and a third metal zone located at two ends of the first metal zone, and two metal zones of the first metal zone, the second metal zone and the third metal zone are electrically coupled to the matching circuit and the grounding wire correspondingly.
7. The antenna device according to claim 2, wherein two micro-seam bands are provided, and divide the metal housing into a first metal zone located in the middle, and a second metal zone and a third metal zone located at two ends of the first metal zone, and one metal zone of the first metal zone, the second metal zone and the third metal zone is electrically coupled to the matching circuit and the grounding wire.
8. The antenna device according to claim 3, wherein a distance between two adjacent micro-seams is larger than the seam width of the micro-seam.
9. The antenna device according to claim 4, wherein a distance between two adjacent micro-seams is larger than the seam width of the micro-seam.
10. The antenna device according to claim 5, wherein a distance between two adjacent micro-seams is larger than the seam width of the micro-seam.
11. The antenna device according to claim 6, wherein a distance between two adjacent micro-seams is larger than the seam width of the micro-seam.
12. The antenna device according to claim 7, wherein a distance between two adjacent micro-seams is larger than the seam width of the micro-seam.
13. The antenna device according to claim 8, wherein the metal housing comprises a pair of short edges disposed oppositely and in parallel and a pair of long edges disposed oppositely and in parallel, the micro-seams extend parallel to the pair of short edges or the pair of long edges.
14. The antenna device according to claim 13, wherein the micro-seam is filled with a signal non-shielding material.
15. A mobile terminal, comprising an antenna device comprising:
- a radio frequency transceiving circuit;
- a matching circuit, electrically coupled to the radio frequency transceiving circuit; and
- a metal housing, an edge of the metal housing comprising an arc-shaped section, the metal housing being provided with at least one micro-seam band, the at least one micro-seam band comprising an arc-shaped part, the arc-shaped part matching the arc-shaped section of the metal housing, wherein the radio frequency transceiving circuit is electrically coupled to the metal housing by means of the matching circuit, such that the metal housing is used as a radiating body of the antenna device, the metal housing is grounded by means of a grounding wire, and the grounding wire is provided with an on-off switch configured to control the grounding wire;
- wherein the micro-seam band comprises three to twenty arc-shaped micro-seams, a metal strip is formed between the adjacent micro-seams, and the metal strip has the same material as the metal housing.
16. The mobile terminal according to claim 15, wherein each of the micro-seams has a seam width of 0.03 mm.
17. The mobile terminal according to claim 16, wherein one micro-seam band is provided and extends non-penetratingly from the edge of the metal housing to an interior of the metal housing, such that parts of the metal housing at both sides of the micro-seam band are coupled into a whole.
18. The mobile terminal according to claim 16, wherein one micro-seam band is provided and divides the metal housing into two independent metal zones, and the two metal zones are electrically coupled to the matching circuit and the grounding wire correspondingly.
19. The mobile terminal according to claim 16, wherein one micro-seam band is provided and divides the metal housing into two independent metal zones, and one of the metal zones is electrically coupled to the matching circuit and the grounding wire.
20. The mobile terminal according to claim 16, wherein two micro-seam bands are provided, and divide the metal housing into a first metal zone located in the middle, and a second metal zone and a third metal zone located at two ends of the first metal zone, and two metal zones of the first metal zone, the second metal zone and the third metal zone are electrically coupled to the matching circuit and the grounding wire correspondingly.
Type: Application
Filed: May 8, 2018
Publication Date: Sep 6, 2018
Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LT D. (Dongguan)
Inventors: Xinbao WANG (Dongguan), Ning ZHAO (Dongguan), Shengzhao XIANG (Dongguan)
Application Number: 15/974,092