CN109904615B - Antenna device and mobile terminal - Google Patents
Antenna device and mobile terminal Download PDFInfo
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- CN109904615B CN109904615B CN201811625222.7A CN201811625222A CN109904615B CN 109904615 B CN109904615 B CN 109904615B CN 201811625222 A CN201811625222 A CN 201811625222A CN 109904615 B CN109904615 B CN 109904615B
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Abstract
The invention discloses an antenna device and a mobile terminal, wherein the antenna device comprises an antenna main body, the antenna main body comprises a first section antenna, a second section antenna, a third section antenna, a feed end and a grounding end, and the first section antenna is used for realizing low-frequency-band resonance; a first separation groove is arranged between the second section antenna and the first section antenna and used for realizing first resonance of a middle-high frequency band; a second separation groove is formed between the third section antenna and the second section antenna and used for realizing second resonance of a middle and high frequency band; the first section antenna is also provided with a third separating groove, and at least parts of the first separating groove, the second separating groove and the third separating groove are positioned between the feed end and the grounding end, so that third resonance of a medium-high frequency band is realized between the feed end and the grounding end. The invention can improve the working efficiency of the antenna, only changes the wiring form of the antenna on the basis of the prior art, has simple structure and easy realization, and can not increase the cost of the antenna.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an antenna device and a mobile terminal.
Background
With the rapid development of mobile terminals, the requirement for the communication frequency band of the mobile terminal is higher and higher, and it is generally required to support multiple communication frequency bands. Wherein, the medium-high frequency band needs to support 1700 to 2100MHz and 2300 to 2700MHz, and the coverage range is wider.
The inventor of the present application found in long-term research and development that, in a conventional antenna design, 2 resonances are formed by one intermediate frequency trace branch and one parasitic trace to cover a bandwidth of a medium-high frequency, but because a bandwidth to be covered is large, an antenna in a frequency range passing through an edge of the intermediate frequency resonance has low working efficiency of only about 30%, for example, only 1900 to 2100MHz can be covered in actual implementation, and it is difficult to achieve a requirement that the intermediate frequency efficiency is 50%.
Disclosure of Invention
The invention provides an antenna device and a mobile terminal, and aims to solve the technical problem that in the prior art, the functional efficiency of an antenna for realizing a medium-high frequency band is low.
In order to solve the above technical problem, one technical solution adopted by the present invention is to provide an antenna apparatus, including an antenna main body, the antenna main body including:
a first segment antenna for realizing resonance of a low frequency band;
a first separation groove is arranged between the second section antenna and the first section antenna and is used for realizing first resonance of a middle and high frequency band;
a second separation groove is arranged between the third segmented antenna and the second segmented antenna and used for realizing second resonance of a middle and high frequency band;
the first segmented antenna is further provided with a third separating groove, and at least parts of the first separating groove, the second separating groove and the third separating groove are located between the feeding end and the grounding end, so that third resonance of a medium-high frequency band is realized between the feeding end and the grounding end.
The antenna device further comprises an antenna carrier, wherein the antenna carrier comprises a main board and a side board, at least one part of the antenna main body is located on the main board, and at least another part of the antenna main body is located on the side board.
The width of the part of the antenna main body on the main board is 10-12 mm, and the width of the part of the antenna main body on the side board is 5.5-6.5 mm.
Wherein at least a portion of the third segment antenna is located on the side panel, and a width of the third segment antenna is 2.5 to 3.5 mm.
The first separation groove is an S-shaped groove, and one end of the S-shaped groove extends to the edge of the antenna main body.
The second separation groove is an F-shaped groove, the length of a straight line groove in the F-shaped groove is 6-8 mm, the length of a bending groove in the F-shaped groove is 9-11 mm, and the width of the F-shaped groove is 0.45-0.55 mm.
The straight line groove in the F-shaped groove extends to the edge of the antenna main body, and the grounding end is located in an area surrounded by the F-shaped groove so as to isolate the grounding end from the antenna main body.
Wherein, the third partition groove is L type groove, the length in the short side groove in the L type groove is 3.5 to 4.5mm, the length in the long side groove in the L type groove is 7 to 9mm, the width in L type groove is 0.45 to 0.55 mm.
One end of the L-shaped groove extends to the edge of the antenna main body, and the feeding end is located in an area surrounded by the L-shaped groove so as to be isolated from the antenna main body.
In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a mobile terminal including the above antenna apparatus.
The invention realizes the function of the antenna with middle and high frequency bands through three resonances, can improve the working efficiency of the antenna, only changes the wiring form of the antenna on the basis of the prior art, has simple structure and easy realization, and can not increase the cost of the antenna.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of an antenna body in an embodiment of an antenna apparatus of the present invention;
fig. 2 is a schematic structural diagram of an antenna body in an embodiment of an antenna apparatus of the present invention;
fig. 3 is a schematic structural diagram of an antenna body in an embodiment of an antenna apparatus of the invention;
fig. 4 is a schematic structural diagram of an embodiment of the antenna device of the present invention;
fig. 5 is a schematic structural diagram of an embodiment of the mobile terminal 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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, an embodiment of the antenna apparatus of the present invention includes an antenna main body 100, where the antenna main body 100 includes a first segment antenna 110, a second segment antenna 120, a third segment antenna 130, a feeding terminal 140, and a grounding terminal 150, where the first segment antenna 110 is configured to implement low-band resonance; a first separation groove 160 is arranged between the second section antenna 120 and the first section antenna 110, and is used for realizing first resonance of a middle-high frequency band; a second separation groove 170 is arranged between the third segmented antenna 130 and the second segmented antenna 120, and is used for realizing second resonance of a middle-high frequency band; the first segment antenna 110 is further provided with a third separating slot 180, and at least parts of the first separating slot 160, the second separating slot 170 and the third separating slot 180 are located between the feeding end 140 and the grounding end 150, so that a third resonance of a middle and high frequency band is realized between the feeding end 140 and the grounding end 150.
The embodiment of the invention realizes the function of the antenna with medium and high frequency bands through three resonances, can improve the working efficiency of the antenna, only changes the wiring form of the antenna on the basis of the prior art, has simple structure, is easy to realize, and can not increase the cost of the antenna.
Referring to fig. 2 to 4 together, the antenna device 10 further includes an antenna carrier 200, the antenna carrier 200 includes a main board 210 and a side board 220, at least one portion of the antenna main body 100 is located on the main board 210, at least another portion of the antenna main body 100 is located on the side board 220, and the antenna carrier 200 covers the main board 210 in a width direction of the main board 210.
In the present embodiment, the width d1 of the portion of the antenna body 100 on the main board 210 is 10 to 12mm, such as 10mm, 11mm or 12mm, and the width d2 of the portion of the antenna body 100 on the side board 220 is 5.5 to 6.5mm, such as 5.5mm, 6mm or 6.5 mm. In other embodiments, the widths of the antenna main body 100 on the main board 210 and the side board 220 may also be appropriately adjusted according to the lengths and the widths of the main board 210 and the side board 220 in the antenna carrier 200, which is not limited herein.
At least a part of the third segment antenna 130 is located on the side panel 220, and in the present embodiment, most of the third segment antenna 130 (a part having an area exceeding 50% of the entire area of the third segment antenna 130) is located on the side panel 220. The width of the third segmented antenna 130 is 2.5 to 3.5mm, for example 2.5mm, 3mm or 3.5 mm.
The first partition groove 160 is an S-shaped groove having a width of 0.45 to 0.55mm, for example 0.45mm, 0.5mm or 0.55 mm.
One end of the S-shaped groove extends to the edge of the antenna body 100, so that a broken gap is formed between the first segment antenna 110 and the second segment antenna 120 at the edge of the antenna body 100 close to the side plate 220. The other end of the S-shaped slot extends between the feed end 140 and the ground end 150 and does not reach the edge of the antenna body 100.
The side plate 220 is further provided with a connector 230, and one end of the S-shaped groove extends to the connector 230. In this embodiment, the interface 230 is a USB (Universal Serial Bus) interface, and the USB interface is located in the middle of the side plate 220, and in other embodiments, the interface 230 may also be an earphone interface, and the like, which is not limited herein.
The second partition groove 170 is an F-shaped groove, and the length of the straight groove 171 in the F-shaped groove is 6 to 8mm, for example, 6mm, 7mm, or 8 mm. The length of the bent groove 172 in the F-shaped groove is 9 to 11mm, for example 9mm, 10mm or 11 mm. The width of the F-groove is 0.45 to 0.55mm, for example 0.45mm, 0.5mm or 0.55 mm.
The straight groove 171 of the F-shaped groove extends to the edge of the antenna body 100, and the ground terminal 150 is located in the area enclosed by the F-shaped groove to isolate the ground terminal 150 from the antenna body 100 and isolate the third segment antenna 130 from the second segment antenna 120.
The third partition grooves 180 are L-shaped grooves, and the length of the short side grooves 181 in the L-shaped grooves is 3.5 to 4.5mm, for example 3.5mm, 4mm or 4.5 mm. The length of the long side slot 182 in the L-shaped slot is 7 to 9mm, for example 7mm, 8mm or 9 mm. The width of the L-shaped groove is 0.45 to 0.55mm, for example 0.45mm, 0.5mm or 0.55 mm.
One end of the L-shaped groove extends to the edge of the antenna body 100, and the feeding end 140 is located in an area enclosed by the L-shaped groove to isolate the feeding end 140 from the antenna body 100.
In the present embodiment, the distance between the feeding terminal 140 and the grounding terminal 150 is 9 to 11mm, for example 9mm, 10mm or 11 mm. The grounding terminal 150 is close to the edge of the main board 210, and the feeding terminal 140 is located on the side of the grounding terminal 150 away from the edge of the main board 210.
In this embodiment, the first segmented antenna 110 may be configured to implement an antenna function in a 700 to 960MHz frequency band; the second segment antenna 120 may be used to implement an antenna function in the 1700 to 1900MHz frequency band; the third segment antenna 130 may be configured to implement an antenna function in a 2300 to 2700MHz frequency band; the space between the feeding end 140 and the grounding end 150 can be used for realizing the antenna function of the 1900-2100 MHz frequency band.
Since the antenna function of the 1900-2100 MHz band is realized by a single resonance in this embodiment, the antenna efficiency can reach 40-50%, which is much higher than the antenna efficiency of 30% realized in the prior art.
In other embodiments, the antenna functions of different frequency bands implemented by the respective segmented antennas can be changed by changing the lengths and positions of the dividing slots. For example, in the conventional antenna design, the antenna efficiency of the device in the 2300 to 2400MHz frequency band is low, and the third resonance in the middle and high frequency band can be shifted, so that the antenna function in the 2300 to 2400MHz frequency band is implemented between the feeding terminal 140 and the grounding terminal 150, and the antenna efficiency in this frequency band is higher.
The embodiment of the invention realizes the function of the antenna with medium and high frequency bands through three resonances, can improve the working efficiency of the antenna, only changes the wiring form of the antenna on the basis of the prior art, has simple structure, is easy to realize, and can not increase the cost of the antenna. Through setting up the antenna main part on the mainboard and the curb plate of antenna carrier, can be adapted to the shape and the size of antenna carrier in a flexible way, avoid occupying the space of other parts.
Referring to fig. 5, the mobile terminal embodiment of the present invention includes an antenna main body 100, an antenna support 200, and a frame 300, where the antenna main body 100 is disposed on the antenna support 200, and the antenna support 200 is disposed in the frame 300, and structures of the antenna main body 100 and the antenna support 200 are respectively referred to structures of the antenna main body 100 and the antenna carrier 200 in the antenna device embodiment, and are not described herein again.
The embodiment of the invention realizes the function of the antenna with medium and high frequency bands through three resonances, can improve the working efficiency of the antenna, only changes the wiring form of the antenna on the basis of the prior art, has simple structure, is easy to realize, and can not increase the cost of the antenna.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. An antenna device comprising an antenna body, the antenna body comprising:
a first segment antenna for realizing resonance of a low frequency band;
a first separation groove is arranged between the second section antenna and the first section antenna and is used for realizing first resonance of a middle and high frequency band;
a second separation groove is arranged between the third segmented antenna and the second segmented antenna and used for realizing second resonance of a middle and high frequency band;
the first segmented antenna is also provided with a third separating slot, and at least part of the first separating slot, at least part of the second separating slot and at least part of the third separating slot are positioned between the feed end and the grounding end, so that third resonance of a medium-high frequency band is realized between the feed end and the grounding end;
the second separation groove is an F-shaped groove, a straight line groove in the F-shaped groove extends to the edge of the antenna main body, and the grounding end is located in an area surrounded by the F-shaped groove so as to isolate the grounding end from the antenna main body.
2. The antenna device of claim 1, further comprising an antenna carrier, the antenna carrier comprising a main board and a side board, at least a portion of the antenna body being located on the main board, and at least another portion of the antenna body being located on the side board.
3. The antenna device according to claim 2, wherein the width of the portion of the antenna body on the main board is 10 to 12mm, and the width of the portion of the antenna body on the side board is 5.5 to 6.5 mm.
4. The antenna device of claim 2, wherein at least a portion of the third patch antenna is located on the side panel.
5. The antenna device of claim 2, wherein the first separation groove is an S-shaped groove, and one end of the S-shaped groove extends to an edge of the antenna body.
6. The antenna device according to claim 1, wherein the length of the straight groove in the F-shaped groove is 6 to 8mm, the length of the bent groove in the F-shaped groove is 9 to 11mm, and the groove width of the F-shaped groove is 0.45 to 0.55 mm.
7. The antenna device according to claim 1, wherein the third partition groove is an L-shaped groove, a length of a short-side groove of the L-shaped grooves is 3.5 to 4.5mm, a length of a long-side groove of the L-shaped grooves is 7 to 9mm, and a groove width of the L-shaped groove is 0.45 to 0.55 mm.
8. The antenna device according to claim 7, wherein one end of the L-shaped groove extends to an edge of the antenna body, and the feeding end is located in an area enclosed by the L-shaped groove to isolate the feeding end from the antenna body.
9. A mobile terminal, characterized in that it comprises an antenna device according to any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625222.7A CN109904615B (en) | 2018-12-28 | 2018-12-28 | Antenna device and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625222.7A CN109904615B (en) | 2018-12-28 | 2018-12-28 | Antenna device and mobile terminal |
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| Publication Number | Publication Date |
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| CN109904615A CN109904615A (en) | 2019-06-18 |
| CN109904615B true CN109904615B (en) | 2021-08-31 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108767499A (en) * | 2018-04-28 | 2018-11-06 | 华勤通讯技术有限公司 | Metal edge frame antenna and terminal device |
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| CN101998689B (en) * | 2009-08-14 | 2013-10-02 | 联想（上海）有限公司 | Mobile terminal and multiband aerial used on same |
| TWI532253B (en) * | 2012-09-10 | 2016-05-01 | 鴻海精密工業股份有限公司 | Dual-band antenna |
| US9331397B2 (en) * | 2013-03-18 | 2016-05-03 | Apple Inc. | Tunable antenna with slot-based parasitic element |
| CN104752815A (en) * | 2013-12-31 | 2015-07-01 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with antenna structure |
| CN105406174A (en) * | 2015-10-30 | 2016-03-16 | 展讯通信（上海）有限公司 | LTE multi-frequency-band antenna and mobile terminal |
| CN207338621U (en) * | 2017-06-09 | 2018-05-08 | 瑞声精密制造科技(常州)有限公司 | Antenna system and mobile terminal |
| CN207233938U (en) * | 2017-09-22 | 2018-04-13 | 安特微智能通讯（深圳）有限公司 | A kind of multiband aerial |
| CN107959128B (en) * | 2017-10-13 | 2021-02-26 | 瑞声科技(新加坡)有限公司 | Diversity antenna and mobile terminal |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767499A (en) * | 2018-04-28 | 2018-11-06 | 华勤通讯技术有限公司 | Metal edge frame antenna and terminal device |
Non-Patent Citations (1)
| Title |
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| 基于新型体积再利用技术的一种多频带手机天线设计;杜明德等;《四川大学学报自然科学版》;20120531;第49卷(第3期);全文 * |
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Effective date of registration: 20230403 Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee after: Shenzhen Huaxi Investment Co.,Ltd. Address before: 516006 Zhongkai hi tech Zone, Huizhou, Guangdong, 86 Chang seven Road West Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd. |