CN107516767B - Antenna structure of mobile terminal and mobile terminal - Google Patents
Antenna structure of mobile terminal and mobile terminal Download PDFInfo
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- CN107516767B CN107516767B CN201710643212.5A CN201710643212A CN107516767B CN 107516767 B CN107516767 B CN 107516767B CN 201710643212 A CN201710643212 A CN 201710643212A CN 107516767 B CN107516767 B CN 107516767B
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- battery cover
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Abstract
The invention provides an antenna structure of a mobile terminal and the mobile terminal, the antenna structure of the mobile terminal comprises: the antenna radiator is positioned on the inner surface of an insulating battery cover of the mobile terminal, at least one feed connection point and at least one grounding connection point are arranged on the antenna radiator, the feed connection point is electrically connected with a feed end arranged on a circuit board of the mobile terminal, and the circuit board is positioned on the inner surface of the insulating battery cover; the first antenna wire is arranged on the outer surface of the insulating battery cover, a first through hole and a second through hole are formed in the insulating battery cover, one end of the first antenna wire penetrates through the first through hole and then is electrically connected with the grounding connection point, and the other end of the first antenna wire penetrates through the second through hole and then is electrically connected with a grounding end arranged on the circuit main board. Therefore, the scheme of the invention solves the problems that the distance between the antenna radiation piece and the reference ground is small and the antenna routing range is limited.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an antenna structure of a mobile terminal and a mobile terminal.
Background
The current mobile terminal design is becoming thinner and lighter, resulting in a decrease in the distance between the antenna radiation sheet and the reference ground. Meanwhile, the design requirements for product reliability are higher and higher, for example: waterproof, salt fog, fall etc. therefore terminal structure design can produce corresponding knot position, waterproof bubble cotton etc. to other equipment such as USB, speaker, microphone, earphone still need be arranged in the antenna area. However, in the prior art, the antenna wire is disposed inside the battery cover, so that the structural design of the terminal and other devices in the antenna area may limit the layout of the antenna wire, thereby affecting the radiation performance of the antenna.
Therefore, the antenna layout mode in the prior art has the problems that the distance between the antenna radiation sheet and the reference ground is small, and the antenna routing range is limited.
Disclosure of Invention
The embodiment of the invention provides an antenna structure of a mobile terminal and the mobile terminal, which aim to solve the problems that the distance between an antenna radiation sheet and a reference ground is small and the antenna wiring range is limited in the antenna layout mode in the prior art.
An embodiment of the present invention provides an antenna structure of a mobile terminal, including:
the antenna radiator is positioned on the inner surface of an insulating battery cover of the mobile terminal, at least one feed connection point and at least one ground connection point are arranged on the antenna radiator, the feed connection point is electrically connected with a feed end arranged on a circuit board of the mobile terminal, and the circuit board is positioned on the inner surface of the insulating battery cover;
the first antenna wire is arranged on the outer surface of the insulating battery cover, a first through hole and a second through hole are formed in the insulating battery cover, one end of the first antenna wire penetrates through the first through hole and then is electrically connected with the grounding connection point, and the other end of the first antenna wire penetrates through the second through hole and then is electrically connected with a grounding end arranged on the circuit mainboard.
An embodiment of the present invention further provides a mobile terminal, including: the antenna structure of the mobile terminal is described above.
The embodiment of the invention has the beneficial effects that:
according to the embodiment of the invention, the antenna radiator is arranged on the inner surface of the insulating battery cover of the mobile terminal, the first antenna wire for connecting the antenna radiator and the reference ground is arranged on the outer surface of the insulating battery cover, so that the thickness of the insulating battery cover is converted into the distance between the antenna radiator and the reference ground, the distance between the antenna radiator and the reference ground is increased, and the first antenna wire is arranged on the outer surface of the insulating battery cover, so that the range of the first antenna wire is not limited by the structural design of the terminal and other equipment in the antenna area any more, the wire area is increased, and the radiation performance of the antenna is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an antenna structure of a mobile terminal according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of an antenna structure of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides an antenna structure of a mobile terminal, as shown in fig. 1 and 2, the antenna structure of the mobile terminal includes:
the antenna radiator 1 is positioned on the inner surface 201 of an insulating battery cover of the mobile terminal, at least one feed connection point and at least one ground connection point are arranged on the antenna radiator 1, the feed connection point is electrically connected with a feed end arranged on a circuit board of the mobile terminal, and the circuit board is positioned on the inner surface 201 of the insulating battery cover; preferably, the insulating battery cover may be in particular a glass battery cover;
the first antenna wire is arranged on the outer surface 202 of the insulating battery cover, a first through hole 4 and a second through hole 7 are formed in the insulating battery cover, one end of the first antenna wire penetrates through the first through hole 4 and then is electrically connected with the grounding connection point, and the other end of the first antenna wire penetrates through the second through hole 7 and then is electrically connected with a grounding end arranged on the circuit main board.
The feed connection point on the antenna radiator 1 is electrically connected with the feed end on the circuit board, and the ground connection point is electrically connected with the ground end on the circuit board through the first antenna wire, so that the function of the antenna is realized through the antenna related circuit (such as a matching circuit) on the circuit board.
In addition, in the embodiment of the present invention, the first antenna wire for connecting the antenna radiator 1 and the ground terminal is disposed on the outer surface 202 of the insulating battery cover, and the antenna radiator 1 is located on the inner surface 201 of the insulating battery cover, so that the first antenna wire crosses the thickness of the insulating battery cover, and the thickness of the insulating battery cover is converted into the distance between the antenna radiator 1 and the reference ground, that is, the distance between the antenna radiator 1 and the reference ground is increased, thereby increasing the operating bandwidth of the antenna and improving the radiation performance of the antenna.
In addition, other components of the mobile terminal are not arranged on the outer surface 202 of the insulating battery cover, so that the wiring range of the first antenna wiring on the outer surface of the insulating battery cover is not influenced, and meanwhile, the structures such as the buckling position and the waterproof foam which are additionally designed based on reliability of the mobile terminal are not located on the outer surface of the insulating battery cover, so that the limitation of the structural design of the mobile terminal on the first antenna wiring is avoided, the wiring area of the first antenna is increased, and the radiation performance of the antenna is improved.
Preferably, as shown in fig. 1, a first metal contact area 3 is disposed on the insulated battery cover, a first conductive layer is disposed on an inner wall of the first via hole 4, the first via hole 4 is located in the first metal contact area 3, and the first conductive layer is electrically connected to the first metal contact area 3;
a first electric connecting piece 5 is arranged at a grounding connection point on the antenna radiator 1, the first electric connecting piece 5 is electrically connected with the first metal contact area 3, and one end of the first antenna wire is electrically connected with the first conductive layer. Further, the first via 4 may be a laser through hole. Furthermore, the diameter of the first via 4 may be 0.2mm, i.e. the first via 4 may be designed as a metallized micro-conductive hole.
That is, one end of the first antenna trace is electrically connected to the first conductive layer in the first via 4, and the first conductive layer is electrically connected to the first metal contact area 3, so that the one end of the first antenna trace is electrically connected to the first metal contact area 3. In addition, since the first electrical connector 5 on the antenna radiator 1 is electrically connected to the first metal contact area 3, one end of the first antenna trace is electrically connected to the antenna radiator 1.
The first antenna wire is arranged on the outer surface 202 of the insulating battery cover, and the antenna radiating body 1 is located on the inner surface 201 of the insulating battery cover, so that the first antenna wire and the antenna radiating body 1 can be electrically connected in a mode that the first conducting layer in the first through hole is electrically connected with the metal contact area. The electrical connection between the antenna radiator 1 and the first antenna trace is not limited to this.
Further, the first electrical connector 5 is a metal dome, so as to facilitate electrical connection with the first metal contact area 3. Alternatively, the first electrical connection 5 can also be designed in the form of a thimble, which makes an electrical connection to the first metal contact area 3.
Preferably, as shown in fig. 1, a second metal contact area 6 is disposed on the insulated battery cover, a second conductive layer is disposed on an inner wall of the second via 7, the second via 7 is located in the second metal contact area 6, and the second conductive layer is electrically connected to the second metal contact area 6; the other end of the first antenna wire is electrically connected with the second conductive layer, and the second metal contact area 6 is electrically connected with a grounding end on the circuit main board. Further, the second via 7 may be specifically a laser through hole. Furthermore, the diameter of the second via 7 may be 0.2mm, i.e. the second via 7 may be designed as a metallized micro-conductive hole.
Namely, one end of the first antenna trace is electrically connected with the second conductive layer on the inner wall of the second via hole 7, the second conductive layer is electrically connected with the second metal contact area 6, and the second metal contact area 6 is electrically connected with the ground terminal, so that the electrical connection between the first antenna trace and the ground terminal is realized.
The first antenna wire is arranged on the outer surface 202 of the insulating battery cover, and the circuit board provided with the grounding end is located on the inner surface 201 of the insulating battery cover, so that the first antenna wire and the grounding end on the circuit board can be electrically connected in a mode of electrically connecting the second conductive layer in the second through hole and the metal contact area. In addition, the electrical connection between the first trace and the ground terminal on the circuit board is not limited to this.
Preferably, a second antenna wire, a third via hole 10 and a fourth via hole 12 are further disposed on the outer surface 202 of the insulating battery cover, one end of the second antenna wire penetrates through the third via hole 10 and then is electrically connected to the feed connection point, and the other end of the second antenna wire penetrates through the fourth via hole 12 and then is electrically connected to the feed end on the circuit board.
The second antenna trace for connecting the antenna radiator 1 and the feeding end is disposed on the outer surface 202 of the insulating battery cover, so that the distance between the antenna radiator 1 and the feeding end can be increased, and the radiation performance of the antenna is further improved.
Preferably, as shown in fig. 1, a third metal contact area 9 is disposed on the insulated battery cover, a third conductive layer is disposed on an inner wall of the third via hole 10, the third via hole 10 is located in the third metal contact area 9, and the third conductive layer is electrically connected to the third metal contact area 9;
a second electric connecting piece 8 is arranged at the feed electric connection point on the antenna radiator, the second electric connecting piece 8 is electrically connected with the third metal contact area 9, and one end of the second antenna routing is electrically connected with the third conducting layer. The third via hole 10 may be a laser through hole. Furthermore, the diameter of the third via 10 may be 0.2mm, i.e. the third via 10 may be designed as a metallized micro-conductive via.
That is, one end of the second antenna trace is electrically connected to the third conductive layer on the inner wall of the third via hole 10, the third conductive layer is electrically connected to the third metal contact area 9, and the third metal contact area 9 is electrically connected to the feeding connection point, so as to achieve the electrical connection between the second antenna trace and the feeding connection point.
Further, the second electrical connector 8 is a metal dome, so as to facilitate electrical connection with the third metal contact area 9. Alternatively, the second electrical connection 8 can also be designed in the form of a thimble, which makes an electrical connection to the third metal contact area 9.
Preferably, as shown in fig. 1, a fourth metal contact area 11 is disposed on the insulated battery cover, a fourth conductive layer is disposed on an inner wall of the fourth via 12, the fourth via 12 is located in the fourth metal contact area 11, and the fourth conductive layer is electrically connected to the fourth metal contact area 11;
the other end of the second antenna trace is electrically connected to the fourth conductive layer, and the fourth metal contact area 11 is electrically connected to the feeding end on the circuit board. The fourth via 12 may be a laser through hole. Furthermore, the diameter of the fourth via 12 may be 0.2mm, i.e. the fourth via 12 may be designed as a metallized micro-conductive via.
That is, the other end of the second antenna trace is electrically connected to the fourth conductive layer on the inner wall of the fourth via hole 12, the fourth conductive layer is electrically connected to the fourth metal contact area 11, and the fourth metal contact area 11 is electrically connected to the feeding end, so that the second antenna trace and the feeding end are electrically connected.
Preferably, the first antenna trace and the second antenna trace are respectively disposed near an edge of the insulating battery cover. When the first antenna wire and the second antenna wire are respectively close to the edge of the insulating battery cover, the first antenna wire and the second antenna wire do not occupy too much space of a clearance area (namely, an area without other metal parts except the antenna radiator 1) of the antenna, so that the antenna structure provided by the embodiment of the invention has a larger clearance area compared with the antenna structure in the prior art, and the radiation performance of the antenna is further improved.
Preferably, a paint layer is sprayed on the outer surface 202 of the insulating battery cover, and the first antenna trace and the second antenna trace are both covered by the paint layer. Namely, the outer surface 202 of the insulating battery cover is repeatedly sprayed with the paint layer, so that the wiring area and the non-wiring area are in smooth transition, and the smoothness of the appearance surface is ensured.
Preferably, the antenna radiator 1 is a part of a metal middle frame of the mobile terminal. Namely, the metal middle frame is used as the antenna radiator 1, the antenna radiator 1 does not need to be additionally arranged, so that the components of the mobile terminal are reduced, and the space is saved.
In summary, in the embodiments of the present invention, the metallization traces are interconnected on the inner and outer surfaces of the insulating battery cover, and the traces on the outer surface 202 of the insulating battery cover are interconnected with the antenna radiator 1, so as to increase the height of the antenna and the area of the antenna traces, and substantially reduce the ratio (i.e., Q value) between the energy storage capability of the antenna component and the radiation capability of the antenna, thereby improving the radiation performance of the antenna.
The embodiment of the invention also provides a mobile terminal which comprises the antenna structure of the mobile terminal. The antenna structure of the mobile terminal can be a GPS antenna, a WIFI antenna, a 2G/3G/4G communication antenna or a Near Field Communication (NFC) antenna.
In addition, in the antenna structure of the mobile terminal, the antenna radiator 1 is arranged on the inner surface 201 of the insulating battery cover of the mobile terminal, and the first antenna wire for connecting the antenna radiator 1 and the reference ground is arranged on the outer surface 202 of the insulating battery cover, so that the thickness of the insulating battery cover is converted into the distance between the antenna radiator 1 and the reference ground, and the distance between the antenna radiator 1 and the reference ground is increased, and the first antenna wire is arranged on the outer surface 202 of the insulating battery cover, so that the range of the first antenna wire is not limited by the structural design of the terminal and other devices in the antenna area, the wire area is increased, and the radiation performance of the antenna is improved, and the mobile terminal of the embodiment of the invention has better communication performance.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. An antenna structure of a mobile terminal, comprising:
the antenna radiator is positioned on the inner surface of an insulating battery cover of the mobile terminal, at least one feed connection point and at least one ground connection point are arranged on the antenna radiator, the feed connection point is electrically connected with a feed end arranged on a circuit board of the mobile terminal, and the circuit board is positioned on the inner surface of the insulating battery cover;
the first antenna wire is arranged on the outer surface of the insulating battery cover, a first through hole and a second through hole are formed in the insulating battery cover, one end of the first antenna wire penetrates through the first through hole and then is electrically connected with the grounding connection point, and the other end of the first antenna wire penetrates through the second through hole and then is electrically connected with a grounding end arranged on the circuit mainboard.
2. The antenna structure of claim 1, wherein a first metal contact area is disposed on the insulative battery cover, a first conductive layer is disposed on an inner wall of the first via, the first via is located in the first metal contact area, and the first conductive layer is electrically connected to the first metal contact area;
and a first electric connecting piece is arranged at the grounding connection point on the antenna radiator and is electrically connected with the first metal contact area, and one end of the first antenna routing is connected with the first conductive layer.
3. The antenna structure of claim 1, wherein a second metal contact area is disposed on the insulative battery cover, a second conductive layer is disposed on an inner wall of the second via, the second via is located in the second metal contact area, and the second conductive layer is electrically connected to the second metal contact area;
the other end of the first antenna wire is electrically connected with the second conductive layer, and the second metal contact area is electrically connected with a grounding end on the circuit main board.
4. The antenna structure of the mobile terminal according to claim 1, wherein a second antenna wire, a third via hole and a fourth via hole are further disposed on the outer surface of the insulating battery cover, one end of the second antenna wire penetrates through the third via hole and is electrically connected to the feeding connection point, and the other end of the second antenna wire penetrates through the fourth via hole and is electrically connected to the feeding end on the circuit board.
5. The antenna structure of claim 4, wherein a third metal contact area is disposed on the insulative battery cover, a third conductive layer is disposed on an inner wall of the third via, the third via is located in the third metal contact area, and the third conductive layer is electrically connected to the third metal contact area;
and a second electric connecting piece is arranged at the feed electric connection point on the antenna radiator and is electrically connected with the third metal contact area, and one end of the second antenna routing is electrically connected with the third conductive layer.
6. The antenna structure of claim 4, wherein a fourth metal contact area is disposed on the insulating battery cover, a fourth conductive layer is disposed on an inner wall of the fourth via, the fourth via is located in the fourth metal contact area, and the fourth conductive layer is electrically connected to the fourth metal contact area;
the other end of the second antenna wire is electrically connected with the fourth conductive layer, and the fourth metal contact area is electrically connected with the feed end on the circuit main board.
7. The antenna structure of claim 4, wherein the first antenna trace and the second antenna trace are respectively disposed near edges of the battery cover.
8. The antenna structure of claim 4, wherein an outer surface of the battery cover is painted with a paint layer, and the first antenna trace and the second antenna trace are both covered by the paint layer.
9. The antenna structure of claim 1, wherein the antenna radiator is part of a metal bezel of the mobile terminal.
10. A mobile terminal, characterized in that it comprises an antenna structure of a mobile terminal according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643212.5A CN107516767B (en) | 2017-07-31 | 2017-07-31 | Antenna structure of mobile terminal and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643212.5A CN107516767B (en) | 2017-07-31 | 2017-07-31 | Antenna structure of mobile terminal and mobile terminal |
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| Publication Number | Publication Date |
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| CN107516767A CN107516767A (en) | 2017-12-26 |
| CN107516767B true CN107516767B (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710643212.5A Active CN107516767B (en) | 2017-07-31 | 2017-07-31 | Antenna structure of mobile terminal and mobile terminal |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054509A (en) * | 2018-01-05 | 2018-05-18 | 佛山市顺德区四方板业科技有限公司 | A kind of network case |
| CN109088144B (en) * | 2018-08-23 | 2021-01-05 | 北京小米移动软件有限公司 | Antenna of mobile terminal and mobile terminal |
| CN113594694B (en) * | 2021-07-30 | 2022-10-25 | 联想(北京)有限公司 | Electronic device |
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| CN204067560U (en) * | 2014-09-19 | 2014-12-31 | 大通电子股份有限公司 | There is the domestic aerial of trough |
| CN106453701A (en) * | 2016-09-27 | 2017-02-22 | 努比亚技术有限公司 | Metal shell and terminal |
| CN106663865A (en) * | 2016-09-27 | 2017-05-10 | 北京小米移动软件有限公司 | Terminal casing and terminal |
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| CN105390802A (en) * | 2014-09-03 | 2016-03-09 | 中兴通讯股份有限公司 | Data card antenna and data card |
| JP6236377B2 (en) * | 2014-11-26 | 2017-11-22 | 京セラ株式会社 | Antenna structure and electronic device |
| CN106816681A (en) * | 2015-11-30 | 2017-06-09 | 比亚迪股份有限公司 | A kind of housing, antenna assembly and mobile terminal |
| CN205609741U (en) * | 2016-04-22 | 2016-09-28 | 上海青橙实业有限公司 | Electronic device |
| CN206271853U (en) * | 2016-12-27 | 2017-06-20 | 广东格林精密部件股份有限公司 | A kind of totally-enclosed metal edge frame mobile phone thickens antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204067560U (en) * | 2014-09-19 | 2014-12-31 | 大通电子股份有限公司 | There is the domestic aerial of trough |
| CN106453701A (en) * | 2016-09-27 | 2017-02-22 | 努比亚技术有限公司 | Metal shell and terminal |
| CN106663865A (en) * | 2016-09-27 | 2017-05-10 | 北京小米移动软件有限公司 | Terminal casing and terminal |
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| CN107516767A (en) | 2017-12-26 |
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