CN107565209B - Mobile terminal and antenna thereof - Google Patents
Mobile terminal and antenna thereof Download PDFInfo
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- CN107565209B CN107565209B CN201710640833.8A CN201710640833A CN107565209B CN 107565209 B CN107565209 B CN 107565209B CN 201710640833 A CN201710640833 A CN 201710640833A CN 107565209 B CN107565209 B CN 107565209B
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Abstract
The utility model relates to a mobile terminal and an antenna thereof, wherein, the mobile terminal antenna comprises a coupling feed body and an antenna body, the antenna body is a frame of the mobile terminal, a gap is formed between the frame and a metal rear cover and the frame are connected through a metal connection point, the coupling feed body comprises a feed point, a grounding point, a first coupling feed branch and a second coupling feed branch, the first coupling feed branch and the second coupling feed branch extend to two different directions from the feed point, and the first coupling feed branch is coupled to the antenna body so as to enable the antenna body to resonate in a first frequency band; the second coupling feed stub is coupled to the antenna body to resonate the antenna body in a second frequency band. The mobile terminal antenna uses the frame as the antenna body, the area of the antenna is increased, the radiation efficiency of the antenna is improved, the antenna utilizes the inherent frequency of the antenna body through double-coupling feed, the efficiency of the first frequency band and the second frequency band is improved, and multi-band coverage is realized.
Description
Technical Field
The present disclosure relates to a mobile terminal and an antenna thereof.
Background
With the development of communication technology, the demand of multiband antennas is increasing, especially multiband antennas capable of simultaneously covering GPS frequency band and WiFi frequency band. In order to cover multiple working frequency bands, in the related art, multiple antennas need to be disposed inside the mobile phone, or a metal frame of the mobile phone is used as a radiator and multiple tuning circuits are added at the same time. However, the internal space of the mobile phone is limited, and the antenna in the mobile phone with the metal rear cover is almost in a zero clearance condition, which affects the efficiency of the antenna in the GPS frequency band and the WiFi frequency band.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a mobile terminal antenna, including a coupling feed element and an antenna element, where the antenna element is a frame of the mobile terminal, a gap is formed between the frame and the metal rear cover, and the frame and the metal rear cover are connected through a metal connection point, the coupling feed element includes a feed point, a ground point, a first coupling feed branch and a second coupling feed branch, the first coupling feed branch and the second coupling feed branch extend from the feed point to two different directions, and the first coupling feed branch is coupled to the antenna element, so that the antenna element resonates in a first frequency band; the second coupling feed stub is coupled to the antenna body to resonate the antenna body in a second frequency band.
Optionally, the coupling feed body is attached to a display screen of the mobile terminal.
Optionally, the antenna body is an upper frame of the mobile terminal.
Optionally, the first and second coupling feed branches extend in two opposite directions from the feed point.
Optionally, the first coupling feed branch and the second coupling feed branch are parallel to the bezel.
Optionally, the length of the first coupling feed branch is smaller than the length of the second coupling feed branch, and the width of the first coupling feed branch is greater than the width of the second coupling feed branch.
Optionally, the first frequency band includes 2.4-2.48GHz, and the second frequency band includes 1525 and 1625 MHz.
Optionally, the ground point is formed at an end of the first coupling feed limb opposite the feed point.
Optionally, the metal connection point is located in the middle of the frame.
Optionally, the feed point is connected to a main board of the mobile terminal through a metal conductor.
Optionally, a radio frequency circuit and a matching circuit for adjusting a resonant frequency band are arranged on the main board of the mobile terminal, and the radio frequency circuit is connected to the metal conductor through the matching circuit.
According to another aspect of the present disclosure, there is also provided a mobile terminal including the above antenna.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the mobile terminal antenna uses the frame as the antenna body, the area of the antenna is increased, the radiation efficiency of the antenna is improved, the antenna improves the efficiency of the first frequency band and the second frequency band by double-coupling feeding and utilizing the inherent frequency of the antenna body, and the coverage of multiple frequency bands is realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram of an exemplary embodiment of a mobile terminal antenna of the present disclosure.
Fig. 2 is a schematic structural diagram of another perspective of an exemplary embodiment of the mobile terminal antenna of the present disclosure.
Fig. 3 is a schematic structural diagram of an exemplary embodiment of a coupling feed in a mobile terminal antenna provided by the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
As shown in fig. 1 and 2, according to an aspect of the present disclosure, there is provided a mobile terminal antenna, including a coupling feed 10 and an antenna body 20, wherein the antenna body 20 may be a frame of a mobile terminal, a slot is formed between the frame and a metal back cover 30, and the frame and the metal back cover are connected through a metal connection point G2, the coupling feed 10 includes a feed S, a ground G1, a first coupling feed branch 11 and a second coupling feed branch 12, and the first coupling feed branch 11 and the second coupling feed branch 12 extend from the feed S to two different directions.
The working process of the mobile terminal antenna is as follows: the first coupling feed branch 11 and the second coupling feed branch 12 are connected to a feed point S, the first coupling feed branch 11 is coupled to the antenna body 20 to excite a current to the antenna body 20, so that the antenna body 20 forms a resonance in a first frequency band (for example, a WiFi frequency band), and the second coupling feed branch 12 is coupled to the antenna body 20 to excite a current to the antenna body 20, so that the antenna body 20 forms a resonance in a second frequency band (for example, a GPS frequency band). Here, the first frequency band may include 2.4-2.48GHz and the second frequency band may include 1525 and 1625 MHz.
In the mobile terminal antenna, the frame is used as the antenna body, the area of the antenna is increased, the radiation efficiency of the antenna is improved, and the antenna improves the efficiency in the first frequency band and the second frequency band by double-coupling feeding and utilizing the inherent frequency of the antenna body, so that the coverage of multiple frequency bands is realized.
In the mobile terminal antenna of the present disclosure, the coupling feeder 10 may be attached to a display screen of the mobile terminal, specifically, as shown in fig. 1, a feed point S on the coupling feeder 10 may be connected to a main board of the mobile terminal through a metal conductor 13, where the metal conductor 13 may be a metal sheet vertically fixed on the main board, so as to ensure that the coupling feeder 10 may be just attached to the display screen of the mobile terminal. Therefore, a certain height difference is formed between the coupling feed body 10 and the metal rear cover along the thickness direction of the mobile terminal, the requirement of the all-metal rear cover mobile phone on a clearance area is further met, the problem of signal shielding caused by the all-metal rear cover is avoided, and meanwhile the efficiency of the antenna at the first frequency band and the second frequency band is improved. In addition, as shown in fig. 3, a radio frequency circuit 50 and a matching circuit 40 for adjusting a resonant frequency band are further disposed on the main board of the mobile terminal, the radio frequency circuit 50 is connected to the metal conductor 13 connected to the feeding point S through the matching circuit 40, where the radio frequency circuit 50 is used for feeding a signal to the mobile terminal antenna, and the matching circuit 40 may be a parallel capacitor, a series capacitor, or a combination of the two (not shown in the figure), and can perform fine adjustment on the resonant frequency band, thereby ensuring the efficiency of the mobile terminal antenna in the corresponding frequency band.
The first coupling feeding branch 11 and the second coupling feeding branch 12 may respectively extend from the feeding point S to two opposite directions, the first coupling feeding branch 11 and the second coupling feeding branch 12 are arranged parallel to the frame, the length of the first coupling feeding branch 11 is smaller than that of the second coupling feeding branch 12, and the width of the first coupling feeding branch 11 is larger than that of the second coupling feeding branch 12. The positions, lengths and widths of the first coupling feed branch 11 and the second coupling feed branch 12 in the coupling feed body 10 all affect the coupling strength, and further affect the resonance strength and bandwidth, and when the antenna is designed, multiple times of simulation adjustment are needed, so that the first frequency band and the second frequency band of the mobile terminal antenna are guaranteed to be optimal in efficiency.
The grounding point G1 on the coupling feed body 10 can be formed at the end of the first coupling feed branch 11 opposite to the feeding point S, and the metal connection point G2 on the antenna body 20 can be located in the middle of the frame, so that different resonant loops are formed by selecting different grounding point positions, thereby making the frequency range which can be covered by the antenna wider.
As an exemplary embodiment of the mobile terminal antenna of the present disclosure, as shown in fig. 1, the antenna body 20 may be an upper frame of the mobile terminal, and in other embodiments that are not shown, the antenna body 20 may also be a lower frame, a left frame, or a right frame of the mobile terminal, where the left frame and the right frame are a pair of longer frames, the upper frame and the lower frame are a pair of shorter frames, and the upper frame is a frame adjacent to an earpiece of the mobile terminal, and the lower frame is a frame adjacent to a microphone of the mobile terminal.
According to another aspect of the present disclosure, there is also provided a mobile terminal (in particular, a mobile phone) including the above-mentioned mobile terminal antenna. The mobile terminal antenna can realize multi-band coverage, the efficiency of the first frequency band and the second frequency band is high, the wireless internet access speed of the mobile terminal is further ensured, and the specific position of a user can be accurately positioned.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. A mobile terminal antenna, comprising a coupling feed (10) and an antenna body (20), wherein the antenna body (20) is a frame of the mobile terminal, a gap is formed between the frame and a metal rear cover (30) of the mobile terminal, and the frame and the metal rear cover are connected through a metal connection point (G2), the coupling feed (10) comprises a feed (S), a ground (G1), a first coupling feed branch (11) and a second coupling feed branch (12), the first coupling feed branch (11) and the second coupling feed branch (12) extend from the feed (S) to two opposite directions, and the first coupling feed branch (11) is coupled to the antenna body (20) to enable the antenna body (20) to resonate in a first frequency band; the second coupling feed branch (12) is coupled to the antenna body (20) to make the antenna body (20) resonate in a second frequency band, the first coupling feed branch (11) and the second coupling feed branch (12) are parallel to the frame, the length of the first coupling feed branch (11) is smaller than that of the second coupling feed branch (12), and the width of the first coupling feed branch (11) is larger than that of the second coupling feed branch (12); -the ground point (G1) is formed at an end of the first coupling feed limb (11) opposite to the feed point (S); the coupling feed body (10) is attached to a display screen of the mobile terminal.
2. The mobile terminal antenna according to claim 1, wherein the antenna body (20) is an upper frame of the mobile terminal.
3. The antenna for mobile terminal according to claim 1, wherein said first frequency band comprises 2.4-2.48GHz and said second frequency band comprises 1525 and 1625 MHz.
4. Mobile terminal antenna according to claim 1, characterized in that said metal connection point (G2) is located in the middle of said rim.
5. Mobile terminal antenna according to claim 1, characterized in that the feed point (S) is connected to the main board of the mobile terminal by a metal conductor (13).
6. Mobile terminal antenna according to claim 5, characterized in that said main board of said mobile terminal is provided with a radio frequency circuit (50) and a matching circuit (40) for adjusting the resonance frequency band, said radio frequency circuit (50) being connected to said metal conductor (13) through said matching circuit (40).
7. A mobile terminal, characterized in that it comprises a mobile terminal antenna according to any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640833.8A CN107565209B (en) | 2017-07-31 | 2017-07-31 | Mobile terminal and antenna thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710640833.8A CN107565209B (en) | 2017-07-31 | 2017-07-31 | Mobile terminal and antenna thereof |
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| Publication Number | Publication Date |
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| CN107565209A CN107565209A (en) | 2018-01-09 |
| CN107565209B true CN107565209B (en) | 2020-10-16 |
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| CN201710640833.8A Active CN107565209B (en) | 2017-07-31 | 2017-07-31 | Mobile terminal and antenna thereof |
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| EP3826107B1 (en) * | 2018-09-07 | 2023-07-26 | Huawei Technologies Co., Ltd. | Antenna and mobile terminal |
| CN111490333A (en) * | 2018-11-06 | 2020-08-04 | 华为终端有限公司 | Coupling antenna device and electronic equipment |
| CN113097698B (en) * | 2020-01-08 | 2022-07-19 | 华为技术有限公司 | Antenna assembly and mobile terminal |
| CN111193102A (en) * | 2020-02-25 | 2020-05-22 | 西安易朴通讯技术有限公司 | Antenna device and intelligent communication equipment comprising same |
| CN113394550B (en) * | 2020-03-12 | 2024-06-18 | Oppo广东移动通信有限公司 | Antenna assembly and electronic equipment |
| CN111430892B (en) * | 2020-03-16 | 2022-10-21 | 宇龙计算机通信科技(深圳)有限公司 | 5G WIFI antenna and electronic terminal equipment |
| CN111509368A (en) * | 2020-04-28 | 2020-08-07 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN114095050B (en) * | 2020-07-29 | 2022-12-27 | 华为技术有限公司 | Wireless terminal |
| CN112003020B (en) * | 2020-08-24 | 2023-04-28 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN112072314B (en) * | 2020-09-07 | 2023-06-06 | 抖音视界有限公司 | Multi-frequency antenna and electronic equipment |
| CN112201951B (en) * | 2020-09-28 | 2023-03-10 | 上海摩勤智能技术有限公司 | Multi-antenna layout structure of antenna bracket and mobile terminal |
| CN114914665B (en) * | 2021-02-08 | 2023-09-22 | 华为技术有限公司 | Antenna and terminal equipment |
| CN114976592B (en) * | 2021-02-20 | 2024-06-04 | 北京小米移动软件有限公司 | Antenna structure and terminal equipment |
| CN113571876B (en) * | 2021-07-02 | 2024-08-13 | 维沃移动通信有限公司 | Electronic equipment |
| CN114696076A (en) * | 2022-04-08 | 2022-07-01 | 深圳市博安通科技股份有限公司 | Multi-band antenna double-switch structure of metal frame mobile phone and method thereof |
| CN115051146B (en) * | 2022-06-16 | 2024-08-23 | 领翌技术(横琴)有限公司 | Antenna and electronic device |
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| US8779999B2 (en) * | 2011-09-30 | 2014-07-15 | Google Inc. | Antennas for computers with conductive chassis |
| TWI562456B (en) * | 2013-02-01 | 2016-12-11 | Chiun Mai Comm Systems Inc | Antenna assembly and wireless communication device employing same |
| US9379445B2 (en) * | 2014-02-14 | 2016-06-28 | Apple Inc. | Electronic device with satellite navigation system slot antennas |
| CN104103888B (en) * | 2014-08-06 | 2016-09-21 | 广东欧珀移动通信有限公司 | A kind of mobile phone and antenna thereof |
| CN204167466U (en) * | 2014-11-18 | 2015-02-18 | 惠州硕贝德无线科技股份有限公司 | A kind of metal edge frame multifrequency loop antenna |
| CN105826681B (en) * | 2015-09-02 | 2018-05-11 | 维沃移动通信有限公司 | A kind of antenna system |
| CN105742794A (en) * | 2016-02-03 | 2016-07-06 | 珠海市魅族科技有限公司 | Antenna structure and terminal |
| CN105789884A (en) * | 2016-04-19 | 2016-07-20 | 惠州硕贝德无线科技股份有限公司 | Cell phone antenna structure based on metallic back cover |
| CN106876980B (en) * | 2016-12-30 | 2020-07-10 | 努比亚技术有限公司 | Terminal antenna system and setting method of terminal antenna |
| CN106848594B (en) * | 2017-03-06 | 2019-10-11 | 北京小米移动软件有限公司 | Anneta module and electronic equipment |
| CN106785421A (en) * | 2017-03-16 | 2017-05-31 | 宇龙计算机通信科技(深圳)有限公司 | Antenna system and the communication terminal with the antenna system |
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