Small three-in-one double-frequency WiFi antenna and mobile terminal

Abstract

The utility model discloses a miniature three-in-one double-frequency WiFi antenna and a mobile terminal, the miniature three-in-one double-frequency WiFi antenna comprises a substrate and an antenna main body arranged on the substrate, and the antenna main body is provided with a first groove and a second groove. The first groove and the second groove are communicated to divide the antenna main body into a first branch knot and a second branch knot, the second branch knot is provided with a feeding point and a ground point, the second branch knot is provided with an open slot, and the feeding point and the ground point are respectively located at two sides of the open slot. The antenna is divided into the first branch knot and the second branch knot through the first groove and the second groove to form 2.4 G resonance and 5G resonance, the frequency band of the antenna is wide, the frequency band requirements of Bluetooth, 2.4 G WiFi and 5G WiFi can be met at the same time, wiring is simple and easy to achieve, and practicability is high; the open slot is arranged between the feeding point and the ground point, so that feeding coupling is facilitated, and the efficiency of 2.4 G resonance and 5G resonance of the antenna can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless communication technical field especially relates to a small -size three in one dual -frenquency WiFi antenna and mobile terminal. BACKGROUND

[0002] With the development of wireless communication technology, the frequency band supported by terminal electronic products such as mobile phone is more and more, to provide bluetooth connection, WiFi connection and other functions. Different wireless applications have different working frequency bands, and different frequency bands have corresponding antennas of different lengths according to their wavelengths. In order to realize the foregoing functions, a plurality of antennas corresponding to the frequency bands need to be carried. Taking a smart phone as an example, while realizing more and more functions, the smart phone on the market is required to be lighter and thinner. At the same time, the screen body of the smart phone is required to be close to full screen design. The screen body is larger and larger, and the screen frame is embedded in the periphery of the screen body. The width of the screen frame is becoming narrower and narrower with the expansion of the screen body. At the same time, the camera, sensor and the like need to be set on the screen frame. The combination of the two factors leads to the fact that the relative antenna clearance is smaller and smaller. The space available for antenna installation becomes complex, which affects the antenna efficiency and antenna bandwidth, thereby affecting the realization of the antenna function. Therefore, in order to meet the demand of multi-frequency band and multi-mode communication, developing an antenna capable of supporting multiple frequency bands simultaneously has become the focus of the current research of the technical personnel in the field. SUMMARY

[0003] The utility model discloses a small -size three in one dual -frenquency WiFi antenna and mobile terminal, to solve the technical problem that the antenna cannot support multiple frequency bands simultaneously in the prior art.

[0004] The utility model provides a small -size three in one dual -frenquency WiFi antenna, including the substrate and setting on the antenna main body of substrate, the first groove and the second groove are set on the antenna main body, the first groove is linked together with the second groove to divide the antenna main body into two and form the first branch and the second branch, the second branch is equipped with the feed point and the point, the second branch is equipped with the opening slot, the feed point and the point are located on the two sides of opening slot respectively.

[0005] The small -size three in one dual -frenquency WiFi antenna as described above, the first groove and the second groove are perpendicular to each other.

[0006] The small -size three in one dual -frenquency WiFi antenna as described above, the end of the second branch is inclined to the direction away from the first branch.

[0007] The small -size three in one dual -frenquency WiFi antenna as described above, the feed point is set in the junction of the first branch and the second branch.

[0008] The small three-in-one dual-frequency WiFi antenna as described above, wherein the slot width of the first groove is greater than the slot width of the second groove.

[0009] The small three-in-one dual-frequency WiFi antenna as described above, wherein the first branch covers the 5G WiFi frequency band.

[0010] The small three-in-one dual-frequency WiFi antenna as described above, wherein the second branch covers the Bluetooth frequency band, the 2.4G WiFi frequency band and the 5G WiFi frequency band.

[0011] The small three-in-one dual-frequency WiFi antenna as described above, wherein the wiring area of the second branch is greater than the wiring area of the first branch.

[0012] The small three-in-one dual-frequency WiFi antenna as described above, wherein the antenna body is arranged on the front surface of the substrate, and the back surface of the substrate is provided with a glue coating layer.

[0013] The utility model also provides a mobile terminal, including the small three-in-one dual-frequency WiFi antenna as described above.

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

[0015] In the utility model, the small three-in-one dual-frequency WiFi antenna includes the substrate and the antenna body of setting on the substrate, is set up with first groove and second groove on the antenna body, and the first groove is linked together with the second groove to divide the antenna body into two and forms the first branch and the second branch, is equipped with the feeding point and the point on the second branch, and is set up with the open slot on the second branch, and the feeding point and the point are located on both sides of the open slot respectively. The antenna is divided into the first branch and the second branch through the first groove and the second groove, to form 2.4G resonance and 5G resonance, and the frequency band of the antenna is wide, can satisfy the frequency band demand of bluetooth, 2.4G WiFi, 5G WiFi simultaneously, and the wiring is simple and easy to realize, and the practicality is strong, and the open slot is arranged between the feeding point and the point, is favorable to the feed coupling, can improve the efficiency of 2.4G resonance and 5G resonance of the antenna. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the 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 creating creative labor.

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

[0018] Figure 2 is a debugging result diagram of a small three-in-one dual-frequency WiFi antenna according to an exemplary embodiment;

[0019] Figure 3 is a test efficiency diagram of a small three-in-one dual-frequency WiFi antenna according to an exemplary embodiment.

[0020] Wherein: 1, substrate; 2, first groove; 3, second groove; 4, first branch; 5, second branch; 51, first end; 6, feed point; 7, point; 8, open slot. 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 the purpose of description, 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 utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication or two element mutual action relation.For ordinary skilled person in the art, the above terms can be understood according to the specific meaning in the utility model.

[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 utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

[0026] Referring to Figure 1 The utility model provides a kind of small three-in-one dual-frequency WiFi antenna, including substrate 1 and the antenna main body being set on the substrate 1, first groove 2 and second groove 3 are opened in the antenna main body, the first groove 2 is communicated with the second groove 3 to divide the antenna main body into two to form first branch 4 and second branch 5, feed point 6 and point 7 are equipped on the second branch 5, opening slot 8 is opened in the second branch 5, and the feed point 6 and the point 7 are located at the two sides of the opening slot 8 respectively.By first groove 2 and second groove 3, the antenna main body is divided into first branch 4 and second branch 5, to form 2.4G resonance and 5G resonance, the frequency band of antenna, the frequency band demand of Bluetooth, 2.4G WiFi, 5G WiFi can be met simultaneously, and wiring is simple and easy to realize, and practicality is strong;Opening slot 8 is equipped between feed point 6 and point 7, which is beneficial to feed coupling, and can improve the efficiency of 2.4G resonance and 5G resonance of antenna.

[0027] Optionally, the length of the substrate 1 is 21.80mm-22.2mm, and the width is 8.53mm-8.93mm;The length of the antenna main body is 14.1mm-14.5mm, and the width is 7.53mm-7.93mm, the size of the whole antenna is small, can be installed in narrow space, can be adapted to more complex installation environment.

[0028] Further, the first groove 2 and the second groove 3 are arranged perpendicular to each other. The first groove 2 and the second groove 3 combine to form a T-shaped slot.

[0029] Further, the end of the second branch 5 is arranged obliquely away from the first branch 4, the end of the second branch 5 is away from the first branch 4, the first branch 4 and the second branch 5 are far apart, and do not interfere with each other to affect the performance of 2.4G WiFi.

[0030] Further, the feeding point 6 is arranged at the connection of the first branch 4 and the second branch 5. The current flows to the first branch 4 and the second branch 5 through the feeding point 6, thereby exciting the 2.4G resonance and the 5G resonance.

[0031] Further, the width of the first groove 2 is greater than the width of the second groove 3. Specifically, the length of the 2.4G and 5G waveforms can be adjusted by adjusting the width of the first groove 2, which can be adjusted according to requirements in actual design. The length of the 5G waveform can be adjusted by adjusting the width of the second groove 3, which can be adjusted according to requirements in actual design. Optionally, the first groove 2 includes a straight groove in the inner section and an expanded groove in the outer section, the narrow end of the expanded groove is connected to the straight groove, and the width of the straight groove is 0.4mm-0.8mm. The width of the second groove 3 is 0.3mm-0.7mm.

[0032] Specifically, the depth of the first groove 2 is 13.23mm-13.63mm, and the depth of the first groove 2 also affects the length of the 2.4G and 5G waveforms. When the depth of the first groove 2 is too deep, the overall area of the antenna will be too small, thereby reducing the overall efficiency of the antenna and degrading the performance of the antenna.

[0033] Further, the first branch 4 covers the 5G WiFi frequency band. The current flows to the first branch 4 through the feeding point 6 to generate the 5G resonance 5150MHz-5850MHz.

[0034] Further, the second branch 5 covers the Bluetooth frequency band, the 2.4G WiFi frequency band, and the 5G WiFi frequency band. The Bluetooth resonance frequency band and the 2.4G WiFi resonance frequency band are both 2400MHz-2500MHz. The current flows to the second branch 5 through the feeding point 6 to generate the Bluetooth resonance and the 2.4G WiFi resonance. The second branch 5 is provided with a first end portion 51, which is arranged in a staggered manner with the first groove 2. When the current flows to the first end portion 51, the 5G resonance is generated, and the resonance frequency band is 5150MHz-5850MHz. The length of the entire antenna can be adjusted by adjusting the length of the first end portion 51.

[0035] Specifically, the 5G WiFi is formed by the 5G resonance generated by the first branch 4 and the 5G resonance generated by the second branch 5, which together form a complete and efficient 5G resonance, thereby improving the radiation efficiency.

[0036] Further, the wiring area of the second branch 5 is greater than the wiring area of the first branch 4.

[0037] Further, the antenna body is arranged on the front surface of the substrate 1, and the back surface of the substrate 1 is provided with a glue coating layer.

[0038] After the basic antenna structure is constructed, the length and width of each branch are adjusted and tested in combination with the actual application environment of the small three-in-one dual-frequency WiFi antenna provided in the embodiment to match the bandwidth, frequency band and performance requirements of 2.4G WiFi and 5G WiFi. The debugging method is well known to those skilled in the art, and will not be described here.

[0039] The test performance of the small three-in-one dual-frequency WiFi antenna after debugging is shown in Figure 2 and Figure 3 As can be seen from Figure 2 , it produces relatively obvious resonance in the Bluetooth frequency band, 2.4G WiFi frequency band and 5G WiFi frequency band range, and the matching of the small three-in-one dual-frequency WiFi antenna with the full-screen mobile phone is good, and the antenna has high efficiency. As can be seen from Figure 3 , the performance of the small three-in-one dual-frequency WiFi antenna provided in the embodiment reaches the expected target, has good spatial coverage capability, and can meet the wireless communication use requirements of mobile terminals, and realizes better performance radiation in limited space.

[0040] In an embodiment, the present application also provides a mobile terminal comprising the small three-in-one dual-frequency WiFi antenna provided in the above embodiment. The mobile terminal can include but is not limited to mobile phones, notebook computers, smart wearable devices and other devices.

[0041] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application.

Claims

1. A compact tri-band dual-band WiFi antenna, characterized in that, The antenna comprises a substrate (1) and an antenna body provided on the substrate (1), the antenna body is provided with a first groove (2) and a second groove (3), the first groove (2) and the second groove (3) are communicated to divide the antenna body into a first branch (4) and a second branch (5), the second branch (5) is provided with a feeding point (6) and a grounding point (7), the second branch (5) is provided with an opening groove (8), and the feeding point (6) and the grounding point (7) are located on two sides of the opening groove (8) respectively.

2. The compact tri-band dual-band WiFi antenna according to claim 1, wherein, The first groove (2) and the second groove (3) are perpendicular to each other.

3. The compact tri-band dual-band WiFi antenna of claim 2, wherein, The end of the second branch (5) is inclined away from the first branch (4).

4. The compact tri-band dual-band WiFi antenna of claim 3, wherein, The feeding point (6) is arranged at the connection between the first branch (4) and the second branch (5).

5. The compact tri-band dual-band WiFi antenna according to claim 2, wherein, The groove width of the first groove (2) is greater than that of the second groove (3).

6. The compact tri-band dual-band WiFi antenna according to claim 3, wherein, The first branch (4) covers a 5G WiFi frequency band.

7. The compact tri-band dual-band WiFi antenna of claim 6, wherein, Therefore, the second branch (5) covers a Bluetooth frequency band, a 2.4G WiFi frequency band and a 5G WiFi frequency band.

8. The compact tri-band dual-band WiFi antenna according to claim 1, wherein, The wiring area of the second branch (5) is greater than that of the first branch (4).

9. The compact tri-band dual-band WiFi antenna according to claim 1, wherein, The antenna body is arranged on the front surface of the substrate (1), and the back surface of the substrate (1) is provided with a glue coating layer.

10. A mobile terminal, characterized by The small three-in-one dual-frequency WiFi antenna comprises the small three-in-one dual-frequency WiFi antenna according to any one of claims 1-9. The antenna comprises a substrate (1) and an antenna body provided on the substrate (1), the antenna body is provided with a first groove (2) and a second groove (3), the first groove (2) and the second groove (3) are communicated to divide the antenna body into a first branch (4) and a second branch (5), the second branch (5) is provided with a feeding point (6) and a grounding point (7), the second branch (5) is provided with an opening groove (8), and the feeding point (6) and the grounding point (7) are located on two sides of the opening groove (8) respectively.

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