Antenna based on metal frame and wireless terminal

Abstract

The utility model discloses an antenna based on a metal frame and a wireless terminal, and relates to the technical field of wireless communication. The antenna comprises a metal frame and an antenna body, the metal frame comprises a lower side shell and a first side shell connected with the lower side shell, and the antenna body comprises a first branch knot, a first feeding point, a second feeding point, a first ground feeding point and a second ground feeding point. The first ground feeding point, the second ground feeding point and the second feeding point are sequentially arranged on the first side shell at intervals, the first ground feeding point is located on the side close to the lower side shell, the first branch knot is arranged on the lower side shell, and the first feeding point is arranged at the end, close to the first ground feeding point, of the first branch knot. The antenna main body is arranged on the metal frame, so that the integration of the antenna function and the appearance design of the mobile phone is realized, the signal receiving and transmitting requirements of different frequency bands are met, the signal receiving and transmitting capability of the mobile phone when the mobile phone is held by a user for use can be effectively improved, and the stability and smoothness of communication are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless communication technical field especially relates to a kind of antenna and wireless terminal based on metal frame. BACKGROUND

[0002] With the vigorous development of mobile phone industry and the continuous improvement of consumer aesthetics, more metal material parts are added in mobile phones, but too many metal mechanisms are not conducive to the design of mobile phone antennas, and based on the requirement of appearance beauty, the thickness of mobile phone is getting smaller and smaller, so that the antenna space is getting smaller and smaller, integrating metal parts in limited space and meeting the signal strength of antenna pose new challenges to the design of mobile phone antenna. SUMMARY

[0003] The utility model aims at providing a kind of antenna and wireless terminal based on metal frame, to solve the technical problem that metal parts are integrated in limited antenna space in the prior art, it is difficult to meet the signal strength of antenna.

[0004] The utility model provides a kind of antenna based on metal frame, including metal frame and antenna main body, the metal frame includes lower side shell and the first side edge shell being connected with the lower side shell, the antenna main body includes first branch, first feed point, second feed point, first feed site and second feed site, the first feed site, the second feed site and the second feed point are sequentially spaced apart on the first side edge shell, the first feed site is located at the side close to the lower side shell, the first branch is set on the lower side shell, and the first feed point is set on the end of the first branch close to the first feed site.

[0005] The antenna based on metal frame as described above, the lower side shell is provided with breakpoint, and the first branch is located at the side of the breakpoint.

[0006] The antenna based on metal frame as described above, the distance between the second feed site and the second feed point is 15.78±1mm.

[0007] The antenna based on metal frame as described above, the length of the first branch is 34.76±1mm.

[0008] The antenna based on metal frame as described above, the first branch covers the low frequency and intermediate frequency of antenna.

[0009] The antenna based on metal frame as described above, the metal frame is provided with circuit board mounting cavity for mounting circuit board, and the circuit board mounting cavity is located in the included angle region formed by the connection of the lower side shell and the first side edge shell.

[0010] The metal frame-based antenna as described above, wherein a battery mounting cavity for mounting a battery is arranged on the metal frame, and the battery mounting cavity is arranged adjacent to the circuit board mounting cavity.

[0011] The utility model also provides a wireless terminal, including wireless terminal main part and the antenna based on metal frame as described above.

[0012] The wireless terminal as described above, wherein the metal frame is wrapped around the wireless terminal main body.

[0013] The wireless terminal as described above, wherein the wireless terminal further comprises a circuit board, and the first feeding point, the second feeding point, the first feeding site and the second feeding site are electrically connected to the circuit board.

[0014] The utility model discloses an embodiment, and the following beneficial effects will be achieved:

[0015] In the utility model, a kind of antenna based on metal frame includes metal frame and antenna main body, metal frame includes lower side shell and the first side edge shell of being connected with lower side shell, antenna main body includes first branch, first feeding point, second feeding point, first feeding site and second feeding site, first feeding site, second feeding site and second feeding point are sequentially spaced on the first side edge shell, first feeding site is located at the side close to lower side shell, first branch is arranged on lower side shell, and first feeding point is arranged on the end of first branch close to first feeding site. By arranging antenna main body on metal frame, the integration of antenna function and mobile phone appearance design is realized, the signal receiving and transmitting requirements of different frequency bands are met, and the signal performance of mobile phone in handheld state can be significantly improved under the antenna of metal frame. The signal receiving and transmitting capacity of mobile phone when being used by user can be effectively improved, and the stability and smoothness of communication are ensured. Whether in call, internet or using various application programs, it can bring users better communication experience, reduce the interference and attenuation caused by handheld posture to signal. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0017] Figure 1 It is the structure schematic view of the antenna based on metal frame according to an exemplary embodiment;

[0018] Figure 2is a structural schematic diagram of a wireless terminal according to an exemplary embodiment;

[0019] Figure 3 is a structural schematic diagram of a wireless terminal according to an exemplary embodiment; Figure 2 is a large view of A part in the middle;

[0020] Figure 4 is a standing wave of a metal frame-based antenna according to an exemplary embodiment Figure 1 ;

[0021] Figure 5 is a standing wave of a metal frame-based antenna according to an exemplary embodiment Figure 2 ;

[0022] Figure 6 is a standing wave of a metal frame-based antenna according to an exemplary embodiment Figure 3 ;

[0023] Figure 7 is a standing wave of a metal frame-based antenna according to an exemplary embodiment Figure 4 .

[0024] Wherein: 1, lower side shell; 11, breakpoint; 2, first side shell; 3, first branch; 4, first feed point; 5, second feed point; 6, first feed point; 7, second feed point; 8, circuit board mounting cavity; 9, battery mounting cavity; 10, circuit board. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise specifically defined.

[0028] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application.

[0030] Referring to Figure 1 The present application provides a kind of antenna based on metal frame, including metal frame and antenna main body, the metal frame includes lower side shell 1 and the first side edge shell 2 connected with the lower side shell 1, the antenna main body includes first branch 3, first feed point 4, second feed point 5, first feed point 6 and second feed point 7, the first feed point 6, the second feed point 7 and the second feed point 5 are sequentially arranged on the first side edge shell 2, the first feed point 6 is located on the side close to the lower side shell 1, the first branch 3 is arranged on the lower side shell 1, and the first feed point 4 is arranged on the end of the first branch 3 close to the first feed point 6. By arranging the antenna main body on the metal frame, the integration of antenna function and mobile phone appearance design is realized, the signal receiving and transmitting requirements of different frequency bands are met, the antenna under the metal frame can significantly improve the signal performance of the mobile phone in the handheld state, effectively improve the signal receiving and transmitting capability of the mobile phone when being used by user, and ensure the stability and smoothness of communication. Whether in conversation, online or using various application programs, it can bring users a better communication experience, reduce the interference and attenuation caused by handheld posture on signal.

[0031] Further, the lower side shell 1 is provided with a breakpoint 11, and the first branch 3 is located at one side of the breakpoint 11. The part of the metal plate of the lower side shell 1 which does not become the antenna body can avoid interference with the antenna body, and reduce signal fluctuation of the antenna. Specifically, the main body part of the first side edge shell 2 is arranged in a staggered manner with the antenna body, so as to avoid interference of the main body part of the first side edge shell 2 with the radiation of the antenna, and the second feeding point 5 is arranged at the connection between the main body part of the first side edge shell 2 and the antenna body.

[0032] Further, the interval between the second feeding point 7 and the second feeding point 5 is 15.78±1mm, and the bandwidth of the antenna can be controlled by adjusting the interval between the second feeding point 7 and the second feeding point 5.

[0033] Further, the length of the first branch 3 is 34.76±1mm, and the length of the low frequency and the medium frequency of the antenna can be controlled by adjusting the length of the first branch 3, so that the antenna maintains good resonance in the low frequency and the medium frequency.

[0034] Further, the first branch 3 covers the low frequency and the medium frequency of the antenna, so that the antenna can adapt to multiple communication frequency bands, and provide users with more stable and high-quality communication experience.

[0035] Further, the metal frame is provided with a circuit board mounting cavity 8 for mounting a circuit board 10, and the circuit board mounting cavity 8 is located in the included angle region formed by the connection between the lower side shell 1 and the first side edge shell 2.

[0036] Further, the metal frame is provided with a battery mounting cavity 9 for mounting a battery, and the battery mounting cavity 9 is arranged adjacent to the circuit board mounting cavity 8.

[0037] In another embodiment, referring to Figure 2 and Figure 3 The utility model also provides a wireless terminal, including wireless terminal main part and the antenna based on metal frame as described above. The wireless terminal can include but not limited to tablet, mobile phone, notebook computer, smart wear equipment and other equipment.

[0038] Further, the metal frame is wrapped around the four sides of the wireless terminal main body. In the limited antenna space, the signal strength in the handheld state can be realized, and the demand of the North American operator can be completely met, and the limited space resource is fully utilized, and the optimization layout is carried out in the specific lower antenna area, so that the signal strength can reach the standard required by the North American operator when the mobile phone is used by the user. Whether between the high-rise buildings in the city or in the remote rural areas, the antenna can provide stable and reliable communication connection for the user, and meet the diversified communication scene demand in the North American region.

[0039] Further, the wireless terminal also includes a circuit board 10, and the first feeding point 4, the second feeding point 5, the first feeding point 6 and the second feeding point 7 are all electrically connected with the circuit board 10. The overall structure is simple, the assembly consistency is excellent, and the production cost and complexity are reduced. At the same time, the good assembly consistency ensures the stability and reliability of the performance of each mobile phone antenna, reduces the signal fluctuation caused by assembly difference, and provides users with more stable and high-quality communication experience. Whether it is mass production or small-scale customization, this kind of antenna can meet different production needs with its simple structure and excellent assembly consistency.

[0040] As shown in Figures 4-7 The antenna of the present application has good standing wave performance in multiple frequency bands. OTA test (Over The Air Testing) is a performance test method of wireless communication equipment, mainly used to evaluate the performance of the equipment in the wireless transmission environment. The OTA test result of the antenna based on the metal frame is shown in Table 1, which has good antenna radiation performance, and the transmission power and receiving sensitivity in each direction of the three-dimensional space are also good, and has good wireless communication performance.

[0041] Table 1 OTA test result of antenna based on metal frame

[0042]

[0043] The above examples are only used to illustrate the technical solutions of the present application, and do not limit the protection scope of the present application.

Claims

1. A metal frame based antenna, characterized by, The metal frame comprises a lower side shell and a first side shell connected to the lower side shell, and the antenna body comprises a first branch, a first feed point, a second feed point, a first feed site and a second feed site, the first feed site, the second feed site and the second feed point are arranged on the first side shell in sequence, the first feed site is located on one side close to the lower side shell, the first branch is arranged on the lower side shell, and the first feed point is arranged on one end of the first branch close to the first feed site.

2. The metal-rim-based antenna of claim 1, wherein, The lower side shell is provided with a breakpoint, and the first branch is located on one side of the breakpoint.

3. The metal-rim-based antenna of claim 2, wherein, The distance between the second feed site and the second feed point is 15.78±1mm.

4. The metal-rim-based antenna of claim 3, wherein, The length of the first branch is 34.76±1mm.

5. The metal-rim-based antenna of claim 4, wherein, The first branch covers the low frequency and the medium frequency of the antenna.

6. The metal-rim-based antenna of claim 1, wherein, The metal frame is provided with a circuit board mounting cavity for mounting a circuit board, and the circuit board mounting cavity is located in an included angle region formed by the connection of the lower side shell and the first side shell.

7. The metal-rim-based antenna of claim 6, wherein, The metal frame is provided with a battery mounting cavity for mounting a battery, and the battery mounting cavity is arranged adjacent to the circuit board mounting cavity.

8. A wireless terminal, characterized by The metal frame-based antenna comprises a wireless terminal body and a metal frame-based antenna as claimed in any one of claims 1-7.

9. The wireless terminal of claim 8, wherein, The metal frame is wrapped around the four sides of the wireless terminal body.

10. The wireless terminal of claim 9, wherein, The wireless terminal further comprises a circuit board, and the first feed point, the second feed point, the first feed site and the second feed site are electrically connected to the circuit board.

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