Built-in dual-frequency WiFi antenna and wireless communication equipment

Abstract

The utility model discloses a built-in double-frequency WiFi antenna and a wireless communication device, the built-in double-frequency WiFi antenna comprises a first oscillator, a second oscillator, a third oscillator and a fourth oscillator which are electrically communicated, the fourth oscillator is provided with a first welding spot, the second oscillator is provided with a second welding spot, a coaxial cable is electrically connected with the first welding spot and the second welding spot in sequence, and the coaxial cable is electrically connected with the first welding spot and the second welding spot. The wiring tail end of the first oscillator is perpendicular to the wiring tail end of the fourth oscillator. Most antennas in the prior art are of symmetrical oscillator structures, and the wiring tail end of the first oscillator and the wiring tail end of the fourth oscillator are perpendicular to each other, so that the first oscillator and the fourth oscillator have different wiring directions instead of a single direction, the radiation angle of the antenna can be optimized, and the radiation efficiency of the antenna is improved. The problem of poor directivity of the antenna due to metal influence is avoided; and meanwhile, the coaxial cable is connected between the antenna and the mainboard, so that the antenna can be arranged far away from the mainboard, and the interference of a metal environment of the mainboard is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless communication technical field especially relates to a built-in dual -band WiFi antenna and wireless communication equipment. BACKGROUND

[0002] The traditional album capacity is limited, and it occupies a place, and with the passage of time, the photo can also fade, and people can remember the past, the digital album has the picture, the text, the sound, the image and various performance methods, the function of revision and editing, the quick search mode, the eternal preservation and so on, can also very convenient copy share. This is the advantage of digital storage. And in order to adapt to the needs of wireless LAN, this kind of electronic product also joins no WiFi module. Design to cater to the appearance and anti -fall, adopt the appearance design of metal frame, leave the debugging space of WiFi is limited, leading to the poor directivity of antenna, low efficiency, sensitivity is limited download speed slow, influence the actual experience of user. CONTENT

[0003] The utility model discloses a built-in dual -band WiFi antenna and wireless communication equipment, to solve the technical problem of poor directivity of antenna in prior art.

[0004] The utility model provides a built-in dual -band WiFi antenna, including substrate, coaxial cable and the antenna main part of setting on substrate, the antenna main part includes electric communication's first oscillation, second oscillation, third oscilling and fourth oscillation, be provided with first soldering point on the fourth oscillation, be provided with second soldering point on the second oscillation, the coaxial cable is electrically connected with first soldering point, second soldering point in proper order, the wire end of first oscillation and the wire end of fourth oscillation are perpendicular to each other.

[0005] The built-in dual -band WiFi antenna as described above, the coaxial cable includes the core wire and shielding layer mutually insulated, the core wire is electrically connected with the first soldering point, and the shielding layer is electrically connected with the second soldering point.

[0006] The built-in dual -band WiFi antenna as described above, the first soldering point and the second soldering point are all arranged on the same side of the antenna main part.

[0007] The built-in dual -band WiFi antenna as described above, the first soldering point is arranged on the side of the fourth oscillation close to the second oscillation, and the second soldering point is arranged on the side of the second oscillation close to the fourth oscillation.

[0008] The built-in dual -band WiFi antenna as described above, the cross-sectional area of the second soldering point is greater than the cross-sectional area of the first soldering point.

[0009] The built-in dual-frequency WiFi antenna as described above, the length of the coaxial cable is 45mm-55mm.

[0010] The built-in dual-frequency WiFi antenna as described above, a coupling slot is arranged between the third dipole and the fourth dipole.

[0011] The built-in dual-frequency WiFi antenna as described above, the slot width of the coupling slot is 0.4mm-0.8mm.

[0012] The built-in dual-frequency WiFi antenna as described above, the substrate is a flexible circuit board.

[0013] The utility model also provides a wireless communication equipment, including the built-in dual-frequency WiFi antenna as described above.

[0014] Implementing the utility model embodiment, will have the following beneficial effects:

[0015] In the utility model, the built-in dual-frequency WiFi antenna includes first dipole, second dipole, third dipole and fourth dipole in electrical communication, is provided with first soldering point on the fourth dipole, is provided with second soldering point on the second dipole, and the coaxial cable is electrically connected with first soldering point, second soldering point in turn, and the wire end of first dipole and the wire end of fourth dipole are perpendicular to each other.The antenna in prior art is mostly symmetrical dipole structure, and the wire end of first dipole and the wire end of fourth dipole of the scheme are perpendicular to each other, so that first dipole and fourth dipole have different wire directions, and are no longer in a single direction, can optimize the angle of antenna radiation, avoid the problem of poor directivity caused by the influence of metal on the antenna;At the same time, the coaxial cable is connected between the antenna and the mainboard, so that the antenna can be arranged away from the mainboard, and the interference of the metal environment of the mainboard is reduced. 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 following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is the structure schematic diagram of built-in dual-frequency WiFi antenna according to an exemplary embodiment;

[0018] Figure 2 It is the back structure schematic diagram of built-in dual-frequency WiFi antenna according to an exemplary embodiment;

[0019] Figure 3is a debugging result diagram of the built-in dual-frequency WiFi antenna according to an exemplary embodiment.

[0020] 1, substrate; 2, first vibrator; 3, second vibrator; 4, third vibrator; 5, fourth vibrator; 6, coaxial cable; 7, first solder joint; 8, second solder joint; 9, coupling groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be apparently 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 the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like 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 indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "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 internal communication of two elements or the 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.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0026] Referring to Figures 1-2 The utility model provides a built -in dual -frequency WiFi antenna, including substrate 1, coaxial cable 6 and setting on the antenna main part of substrate 1, the antenna main part includes electric communication's first oscillator 2, second oscillator 3, third oscillator 4 and fourth oscillator 5, be provided with first solder joint 7 on fourth oscillator 5, be provided with second solder joint 8 on second oscillator 3, coaxial cable 6 is electrically connected with first solder joint 7, second solder joint 8 in proper order, the wire end of first oscillator 2 and the wire end of fourth oscillator 5 are perpendicular to each other. The antenna in the prior art is mostly symmetrical oscillator structure, the wire end of first oscillator 2 and the wire end of fourth oscillator 5 of the scheme are perpendicular to each other and set, make first oscillator 2 and fourth oscillator 5 have different wire direction, no longer single direction orientation, can optimize the angle of antenna radiation, avoid the problem of poor directivity of antenna affected by metal, simultaneously adopt the coaxial cable connection between antenna and mainboard, make antenna can be away from mainboard setting, reduce the interference of mainboard metal environment.

[0027] Further, the coaxial cable 6 includes a core wire and a shielding layer insulated from each other, the core wire is electrically connected with the first solder joint 7, and the shielding layer is electrically connected with the second solder joint 8. Specifically, the core wire of the coaxial cable 6 is welded to the first solder joint 7, and the shielding layer is welded to the second solder joint 8, so that the coaxial cable 6 is electrically connected with the antenna main body. By connecting the coaxial cable between the antenna and the mainboard, the antenna is not directly connected with the mainboard, so that the antenna can be installed away from the mainboard, reducing the interference of the mainboard metal environment on the antenna.

[0028] Optionally, the coaxial cable 6 sequentially includes a core wire, a dielectric layer, a shielding layer and a protective layer from inside to outside, the dielectric layer covers the core wire, the shielding layer covers the dielectric layer, and the protective layer covers the shielding layer. The core wire can be a single core wire or a multi-core wire composed of multiple copper wires; the dielectric layer is generally made of insulating plastic material, such as FEP; the shielding layer is generally a metal braid layer, and the metal braid layer is usually a tinned alloy wire; and the protective layer is a protective layer outside the cable, which is usually made of PFA material.

[0029] In a specific embodiment, the central axes of the first solder joint 7 and the second solder joint 8 coincide. In this way, not only is the welding of the coaxial cable facilitated, but also the antenna has a high coupling efficiency.

[0030] Specifically, the length of the substrate 1 is 21.40mm-21.80mm, and the width of the substrate 1 is 16.40mm-16.80mm.

[0031] Further, the first solder joint 7 and the second solder joint 8 are both arranged on the same side of the antenna body. The antenna body is an asymmetric structure, and the trace directions of the antenna elements point to different directions. The antenna has good directivity, high efficiency, high sensitivity, and fast download speed, thereby improving the actual experience of users.

[0032] Further, the first solder joint 7 is arranged on the side of the fourth element 5 close to the second element 3, and the second solder joint 8 is arranged on the side of the second element 3 close to the fourth element 5. The first solder joint 7 and the second solder joint 8 are arranged adjacent to each other, which can optimize the efficiency of ground feed coupling.

[0033] Further, the cross-sectional area of the second solder joint 8 is greater than that of the first solder joint 7. The radio frequency performance of the antenna is stable, and the frequency band is wide. The antenna has good performance in the frequency bands of 2400MHz-2500MHz and 5150MHz-5850MHz, and has high gain and efficiency and good omnidirectionality. Figure 3 As shown in the figure, all frequency points of the antenna in the frequency bands of 2400MHz-2500MHz and 5150MHz-5850MHz are below -10dB.

[0034] Further, the length of the coaxial cable 6 is 45mm-55mm. The coaxial cable 6 has sufficient length, so that the antenna can be away from the mainboard, and the interference of the metal environment of the mainboard is reduced.

[0035] Further, a coupling groove 9 is arranged between the third element 4 and the fourth element 5, which is beneficial to improve the working efficiency of the antenna and reduce energy loss.

[0036] Further, the groove width of the coupling groove 9 is 0.4mm-0.8mm. The groove width of the coupling groove 9 will affect the overall performance of the antenna. By setting the groove width to 0.4mm-0.8mm, the antenna can maintain good performance.

[0037] Further, the substrate 1 is a flexible circuit board, which can be made of FPC material and has high reliability. The back of the substrate 1 is provided with a back adhesive, thereby facilitating connection and installation.

[0038] In an embodiment, the application also provides a wireless communication device, which comprises the built-in dual-frequency WiFi antenna provided in the above embodiments. The wireless communication device can include but is not limited to mobile phones, notebook computers, smart wearable devices, and the like.

[0039] The built-in dual-frequency WiFi antenna is placed in a microwave darkroom for testing, and the results of the 2.4G frequency band and the 5G frequency band with and without a rim are shown in Table 1 and Table 2.

[0040] Table 1 Test results of the built-in dual-frequency WiFi antenna in the 2.4G frequency band in the microwave darkroom

[0041]

[0042] Table 2 Test results of the built-in dual-frequency WiFi antenna in the 5G frequency band in the microwave darkroom

[0043]

[0044] The above examples are only used to illustrate the technical solutions of the utility model, and do not limit the protection scope of the utility model.

Claims

1. A built-in dual-band WiFi antenna, characterized in that, The antenna comprises a substrate (1), a coaxial cable (6) and an antenna body arranged on the substrate (1), the antenna body comprises a first vibrator (2), a second vibrator (3), a third vibrator (4) and a fourth vibrator (5) in electrical connection, the fourth vibrator (5) is provided with a first soldering point (7), the second vibrator (3) is provided with a second soldering point (8), the coaxial cable (6) is in electrical connection with the first soldering point (7) and the second soldering point (8) in sequence, and the wire end of the first vibrator (2) is perpendicular to the wire end of the fourth vibrator (5).

2. The internal dual-band WiFi antenna according to claim 1, wherein, The coaxial cable (6) comprises a core wire and a shielding layer which are insulated from each other, the core wire is in electrical connection with the first soldering point (7), and the shielding layer is in electrical connection with the second soldering point (8).

3. The internal dual-band WiFi antenna according to claim 2, wherein, The first soldering point (7) and the second soldering point (8) are arranged on the same side of the antenna body.

4. The internal dual-band WiFi antenna according to claim 3, wherein, The first soldering point (7) is arranged on the side of the fourth vibrator (5) close to the second vibrator (3), and the second soldering point (8) is arranged on the side of the second vibrator (3) close to the fourth vibrator (5).

5. The internal dual-band WiFi antenna according to claim 4, wherein, The cross-sectional area of the second soldering point (8) is greater than that of the first soldering point (7).

6. The internal dual-band WiFi antenna according to claim 1, wherein, The length of the coaxial cable (6) is 45mm-55mm.

7. The internal dual-band WiFi antenna according to claim 1, wherein, The third vibrator (4) and the fourth vibrator (5) are provided with a coupling groove (9).

8. The internal dual-band WiFi antenna according to claim 7, wherein, The groove width of the coupling groove (9) is 0.4mm-0.8mm.

9. The internal dual-band WiFi antenna according to claim 1, wherein, The substrate (1) is a flexible circuit board.

10. A wireless communication device, comprising: The built-in dual-frequency WiFi antenna comprises the built-in dual-frequency WiFi antenna according to any one of claims 1-9. The antenna comprises a substrate (1), a coaxial cable (6) and an antenna body arranged on the substrate (1), the antenna body comprises a first vibrator (2), a second vibrator (3), a third vibrator (4) and a fourth vibrator (5) in electrical connection, the fourth vibrator (5) is provided with a first soldering point (7), the second vibrator (3) is provided with a second soldering point (8), the coaxial cable (6) is in electrical connection with the first soldering point (7) and the second soldering point (8) in sequence, and the wire end of the first vibrator (2) is perpendicular to the wire end of the fourth vibrator (5).

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