Four-in-one small antenna and communication terminal

Abstract

The utility model discloses a four-in-one miniature antenna and a communication terminal, the four-in-one miniature antenna comprises a feed point, a feed ground point, a first branch knot, a second branch knot and a third branch knot, the feed point and the feed ground point are arranged at an interval, the first branch knot is connected with the feed point, the second branch knot is connected with the feed ground point, and the third branch knot is connected with the feed ground point. The first branch is perpendicular to the second branch, the third branch is connected with the first branch, and a coupling groove is formed in the direction opposite to the length of the first branch. According to the utility model, through the coupling among the first branch knot, the second branch knot and the third branch knot, a plurality of different frequency bands are formed, the frequency band requirements of Beidou, GPS, Wi-Fi 2.4 G and Wi-Fi 5G can be met at the same time, the high integration of multiple antennas is realized, and the problem of large antenna required space caused by a large number of antennas in the existing communication terminal is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and in particular to a four-in-one small antenna and a communication terminal. Background Art

[0002] With the rapid development of information technology, the technological innovation of antennas has become particularly important. In the context of the 5G era, people have higher and higher requirements for mobile phones in all aspects. As the appearance continues to beautify, the requirements for performance are also getting higher and higher. Ultra-thin mobile phones, full-screen mobile phones, and folding mobile phones are popular among consumers due to their unique appearance and feel. In the environment of ultra-thin mobile phones, the space for antennas to be used is getting smaller and smaller, and the difficulty of antenna design has increased. Utility Model Content

[0003] The utility model aims to provide a four-in-one small antenna and a communication terminal, so as to solve the technical problem of large antenna space requirement caused by a large number of antennas in the communication terminal in the prior art.

[0004] The utility model provides a four-in-one small antenna, comprising a feeding point, a feeding ground, a first branch, a second branch and a third branch, wherein the feeding point and the feeding ground are arranged at intervals, the first branch is connected to the feeding point, the second branch is connected to the feeding ground, the first branch and the second branch are perpendicular to each other, the third branch is connected to the first branch, and a coupling slot is formed along the direction opposite to the length of the first branch.

[0005] As described above, in the four-in-one small antenna, the coupling slot forms a Wi-Fi 5G resonance, and the third branch is used to control the Wi-Fi 5G resonance frequency deviation.

[0006] In the four-in-one small antenna as described above, the first branch and the second branch are coupled to each other.

[0007] As described above, in the four-in-one small antenna, the first branch and the second branch are coupled to form GPS&Wi-Fi 2.4G coupled resonance, the first branch is used to control the GPS resonant frequency deviation, and the second branch is used to control the Wi-Fi2.4G resonant frequency deviation.

[0008] In the four-in-one small antenna as described above, the free end of the second branch is an arc-shaped structure.

[0009] In the four-in-one small antenna as described above, the free end of the third branch is perpendicular to the first branch.

[0010] In the four-in-one small antenna as described above, the third branch is a pseudo parasitic branch.

[0011] In the four-in-one small antenna as described above, the third branch is connected to an end of the first branch close to the feeding point.

[0012] As described above, the four-in-one small antenna has a spacing between the feeding points and the feeding points of 0.5±0.1 mm.

[0013] The utility model also provides a communication terminal, which comprises the four-in-one small antenna as described above.

[0014] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0015] The four-in-one small antenna of the utility model includes a feeding point, a feeding point, a first branch, a second branch and a third branch. The feeding point and the feeding point are arranged at intervals, the first branch is connected to the feeding point, the second branch is connected to the feeding point, the first branch and the second branch are perpendicular to each other, the third branch is connected to the first branch, and a coupling groove is formed in the direction opposite to the length of the first branch. The utility model forms a plurality of different frequency bands through coupling between the first branch, the second branch and the third branch, which can simultaneously meet the frequency band requirements of Beidou, GPS, Wi-Fi 2.4G and Wi-Fi 5G, realize the high integration of multiple antennas, and solve the problem of large antenna space requirement caused by the large number of antennas in existing communication terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a structural schematic diagram of a four-in-one small antenna according to an exemplary embodiment;

[0018] Figure 2 is a diagram showing a debugging result of a four-in-one small antenna according to an exemplary embodiment;

[0019] Figure 3 is a debugging efficiency diagram of a four-in-one small antenna according to an exemplary embodiment;

[0020] Figure 4 The figure is a schematic diagram showing the structure of a communication terminal according to an exemplary embodiment.

[0021] Among them: 1. First branch; 2. Second branch; 3. Third branch; 4. Feeding point; 5. Feeding point; 6. Coupling slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In addition, the frequency bands of Beidou and GPS are the same frequency band.

[0027] See also Figure 1The utility model provides a four-in-one small antenna, including a feeding point 4, a feeding point 5, a first branch 1, a second branch 2 and a third branch 3. The feeding point 4 and the feeding point 5 are arranged at intervals, the first branch 1 is connected to the feeding point 4, the second branch 2 is connected to the feeding point 5, the first branch and the second branch 2 are perpendicular to each other, the third branch 3 is connected to the first branch 1, and a coupling slot 6 is formed along the opposite direction of the length of the first branch 1. The first branch 1, the second branch 2 and the third branch 3 are coupled to each other, so that different frequency band requirements can be met. By adjusting the interval and length between each branch, the frequency band requirements of Beidou, GPS, Wi-Fi 2.4G and Wi-Fi 5G can be met at the same time, solving the problem of large antenna space requirement caused by the large number of antennas in existing communication terminals. The circuit generates a first resonance (nearly 1575MHz) through the feeding point 4 to the first branch 1, radiates a second resonance (2400MHz-2500MHz) through the second branch 2, and generates a third resonance (5150MHz-5850MHz) through the third branch 3 in the form of a pseudo-parasitic.

[0028] Furthermore, the coupling slot 6 forms a Wi-Fi 5G resonance, and the third branch 3 is used to control the Wi-Fi 5G resonance frequency deviation. Specifically, adjusting the length of the third branch 3 can control the Wi-Fi 5G resonance frequency deviation, and the length of the third branch 3 ranges from 8mm to 9mm. The third branch 3 can effectively utilize the antenna space area and realize Wi-Fi 5G radiation in a very small area.

[0029] Furthermore, the first branch 1 and the second branch 2 are coupled to each other to form GPS & Wi-Fi 2.4G coupling resonance, the first branch 1 is used to control the GPS resonance frequency deviation, and the second branch 2 is used to control the Wi-Fi 2.4G resonance frequency deviation. Specifically, the GPS resonance frequency deviation can be controlled by adjusting the first branch 1, the Wi-Fi 2.4G resonance frequency deviation can be controlled by adjusting the length of the second branch 2, and the GPS & Wi-Fi 2.4G coupling frequency band mutual interference can be adjusted by changing the distance between the first branch 1 and the second branch 2.

[0030] Furthermore, the free end of the second branch 2 is an arc-shaped structure, so that the four-in-one small antenna of the present case can fit the shell of the mobile phone more closely, and the four-in-one small antenna can be attached to the corners inside the shell, saving the space occupied by the four-in-one small antenna, which is conducive to making the mobile phone lighter and thinner.

[0031] Furthermore, the free end of the third branch 3 is perpendicular to the first branch 1. Since the free end of the third branch 3 is perpendicular to the first branch 1, the emission angle of the electromagnetic frequency on the first branch is wider, so that the signal receiving and sending performance is better.

[0032] Furthermore, the third branch 3 is connected to an end of the first branch 1 close to the feeding point 4 .

[0033] As described above, the four-in-one small antenna, the spacing between the feed point 4 and the feed point 5 is 0.5±0.1mm. The set spacing can effectively control the resonance width of GPS, Wi-Fi 2.4G, and Wi-Fi 5G, which is conducive to achieving the requirement of very wide bandwidth of Wi-Fi 5G (5150MHz-5850MHz). The length of the feed point 4 and the feed point 5 are both 2±0.3mm. The bandwidth of GPS and the bandwidth of Wi-Fi 5G are controlled by adjusting the length, width and spacing between the feed point 4 and the feed point 5.

[0034] See also Figure 4 The utility model also provides a communication terminal, which includes the four-in-one small antenna as described above. The communication terminal may include but is not limited to various types of mobile communication terminals such as mobile phones, laptops, and smart wearable devices. The four-in-one small antenna is attached to the communication terminal, and the first branch is in an arc-shaped structure and attached to the corners of the communication terminal, which can effectively utilize the space area and improve the antenna radiation efficiency. The communication terminal realizes a multi-frequency antenna in a limited space, which is conducive to enhancing the practicality of the communication terminal.

[0035] 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 four-in-one small antenna provided in this embodiment to match the bandwidth, frequency band and performance requirements of Beidou, GPS, Wi-Fi 2.4G and Wi-Fi 5G. The debugging method is well known to those skilled in the art and will not be repeated here.

[0036] The test performance of the debugged four-in-one antenna is as follows: Figure 2 and Figure 3 As shown, it produces relatively obvious resonance in the Beidou frequency band, GPS frequency band, Wi-Fi 2.4G frequency band and Wi-Fi 5G frequency band, and its efficiency performance is good, so that the four functional antennas are combined into one, which saves antenna space while ensuring antenna performance.

[0037] The solution of the utility model is simple in routing, easy to implement, has strong controllability in single frequency band, and is highly practical. The antenna of the utility model takes into account wide frequency band and can support Beidou\GPS\2.4GHz\5G (1550MHz-1620MHz\2400MHz-2500MHz\5150MHz-5850MHz).

[0038] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A four-in-one small antenna, characterized in that: It includes a feeding point, a feeding point, a first branch, a second branch and a third branch. The feeding point and the feeding point are spaced apart, the first branch is connected to the feeding point, the second branch is connected to the feeding point, the first branch and the second branch are perpendicular to each other, the third branch is connected to the first branch, and a coupling groove is formed along the direction opposite to the length of the first branch.

2. The four-in-one small antenna according to claim 1, characterized in that: The coupling slot forms a Wi-Fi 5G resonance, and the third branch is used to control the Wi-Fi 5G resonance frequency deviation.

3. The four-in-one small antenna according to claim 2, characterized in that: The first branch and the second branch are coupled to each other.

4. The four-in-one small antenna according to claim 3, characterized in that: The first branch node and the second branch node are coupled to form GPS&Wi-Fi 2.4G coupled resonance, the first branch node is used to control the GPS resonance frequency deviation, and the second branch node is used to control the Wi-Fi 2.4G resonance frequency deviation.

5. The four-in-one small antenna according to claim 3, characterized in that: The free end of the second branch is an arc-shaped structure.

6. The four-in-one small antenna according to claim 1, characterized in that: The free end of the third branch is perpendicular to the first branch.

7. The four-in-one small antenna according to claim 6, characterized in that: The third branch is a pseudo-parasitic branch.

8. The four-in-one small antenna according to claim 7, characterized in that: The third branch is connected to an end of the first branch close to the feeding point.

9. The four-in-one small antenna according to claim 1, characterized in that: The distance between the feeding points is 0.5±0.1 mm.

10. A communication terminal, characterized in that: The communication terminal includes the four-in-one small antenna according to any one of claims 1 to 9.

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