Terminal antenna sharing grounding point and mobile terminal

Abstract

The utility model provides a terminal antenna sharing a grounding point and a mobile terminal, the terminal antenna sharing the grounding point comprises a first radiation unit and a second radiation unit, the first radiation unit and the second radiation unit share the grounding point, the first radiation unit is connected with the second radiation unit, and the first radiation unit is connected with the second radiation unit. The second radiation unit comprises a first radiation branch knot and a second radiation branch knot, the first radiation branch knot and the second radiation branch knot are connected to form a bending angle, one end of the first radiation branch knot is connected with the second radiation branch knot, and the other end of the first radiation branch knot is connected with the first radiation unit after being bent; the terminal antenna further comprises a feed unit, and the feed unit is electrically connected with the first radiation unit and the second radiation unit. According to the terminal antenna sharing the grounding point, in a limited antenna clearance area, not only can the overall performance of the antenna be improved, but also mutual interference between antennas can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of communications, in particular to a terminal antenna with a common grounding point and a mobile terminal using the antenna. Background Art

[0002] With the continuous development of 5G base station construction, the frequency bands supported by communication terminals are also expanding. Today, mobile phones are commonly used mobile terminal products. With the continuous development of technology, mobile phones will inevitably use 5G communication technology. This requires increasing the number of antennas in mobile phones. However, the space of mobile phones is limited, and the bandwidth of antennas is also limited by space. Therefore, the frequency band covered by antennas is limited, making it difficult to achieve the antenna's bandwidth radiation.

[0003] Currently, the components in existing terminal devices are complexly stacked and the antenna clearance area is small, which will result in insufficient ground area for the antenna shrapnel. In view of this, it is necessary for the present invention to propose a terminal antenna with a shared grounding point and a mobile terminal using the terminal antenna. Utility Model Content

[0004] The purpose of the present invention is to provide a terminal antenna with a common grounding point, which can not only improve the overall performance of the antenna but also reduce mutual interference between antennas within a limited antenna clearance area.

[0005] In order to solve the above technical problems, the utility model provides a terminal antenna with a common grounding point, wherein the terminal antenna with a common grounding point includes a first radiating unit and a second radiating unit, the first radiating unit and the second radiating unit share a common grounding point, the first radiating unit is connected to the second radiating unit, the second radiating unit includes a first radiating branch and a second radiating branch, the first radiating branch and the second radiating branch are connected to form a bending angle, one end of the first radiating branch is connected to the second radiating branch, and the other end of the first radiating branch is bent and connected to the first radiating unit, the terminal antenna also includes a feeding unit, and the feeding unit is electrically connected to the first radiating unit and the second radiating unit.

[0006] As a further improvement of the present invention, the first radiation unit is configured for the WiFi2.4 / 5G frequency band, and the second radiation unit is configured for the GPS1575MHz frequency band.

[0007] As a further improvement of the present invention, the connection position between the first radiation unit and the second radiation unit is bent to form a bend, the grounding point is arranged at the connection position of the bend, and the grounding point is electrically connected to the first radiation unit and the second radiation unit.

[0008] As a further improvement of the present invention, the feeding unit includes a first feeding point and a second feeding point, the first feeding point is electrically connected to the first radiating unit, and the second feeding point is electrically connected to the second radiating unit.

[0009] As a further improvement of the present invention, the bending angle has an angle range of 22.5°±2°.

[0010] As a further improvement of the present invention, a plurality of first through holes are formed on the first radiation unit, and the plurality of first through holes are arranged on a horizontal straight line and arranged along the extension direction of the first radiation unit.

[0011] As a further improvement of the present invention, a plurality of second through holes are provided at the connection between the first radiating branch and the second radiating branch, and the plurality of second through holes are arranged on the same horizontal line.

[0012] As a further improvement of the present invention, the first radiation unit is configured as a sheet-shaped patch antenna, and the second radiation unit is configured as a sheet-shaped patch antenna.

[0013] As a further improvement of the present invention, the direction in which the first radiation unit is located and the direction in which the second radiation unit is located are perpendicular to each other.

[0014] The purpose of the utility model is to provide a mobile terminal to solve the problem.

[0015] In order to solve the above technical problems, the present invention provides a mobile terminal, which includes the terminal antenna with the aforementioned common grounding point.

[0016] The present invention provides a terminal antenna with a common grounding point, wherein the terminal antenna with a common grounding point includes a first radiating unit and a second radiating unit, wherein the first radiating unit and the second radiating unit share a common grounding point, the first radiating unit is connected to the second radiating unit, the second radiating unit includes a first radiating branch and a second radiating branch, the first radiating branch and the second radiating branch are connected to form a bending angle, one end of the first radiating branch is connected to the second radiating branch, and the other end of the first radiating branch is bent and connected to the first radiating unit, the terminal antenna also includes a feeding unit, and the feeding unit is electrically connected to the first radiating unit and the second radiating unit. The terminal antenna with a common grounding point of the present invention can not only improve the overall performance of the antenna but also reduce mutual interference between antennas within a limited antenna clearance area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a structural diagram of the terminal antenna with a shared grounding point proposed by the present invention.

[0018] Figure 2 These are the resonance simulation diagrams generated by the first radiating unit in the terminal antenna with a common ground point of the present invention in the WiFi 2.4 / 5G frequency bands, namely WiFi 2400MHz-2500MHz and 5150MHz-5859MHz respectively.

[0019] Figure 3 This is a resonance simulation diagram generated by the second radiation unit GPS1575MHz in the terminal antenna with a common ground point of the utility model.

[0020] Figure 4 This is a simulation diagram of the isolation between the first radiating unit and the second radiating unit in the terminal antenna with a common ground point of the present invention.

[0021] The descriptions of the reference numerals are as follows:

[0022] The first radiation unit 10 , the second radiation unit 20 , the first radiation branch 21 , the second radiation branch 22 , the bending angle 30 , the first feeding point 40 , the second feeding point 41 , the grounding point 50 , the first through hole 60 , and the second through hole 70 . DETAILED DESCRIPTION

[0023] The following, combined with the accompanying drawings and specific embodiments, further details the terminal antenna with a shared ground point and the terminal antenna disclosed herein. It should be noted that the accompanying drawings are highly simplified and not precisely scaled, serving only to facilitate and clearly illustrate the embodiments of the present invention. Furthermore, the structures depicted in the accompanying drawings are often portions of the actual structure. In particular, different drawings may require different emphasis and, in some cases, employ different scales.

[0024] The present utility model provides a terminal antenna with a common grounding point, wherein the terminal antenna with a common grounding point includes a first radiating unit and a second radiating unit, wherein the first radiating unit and the second radiating unit share a common grounding point, the first radiating unit is connected to the second radiating unit, the second radiating unit includes a first radiating branch and a second radiating branch, the first radiating branch and the second radiating branch are connected to form a bending angle, one end of the first radiating branch is connected to the second radiating branch, and the other end of the first radiating branch is bent and connected to the first radiating unit, and the terminal antenna also includes a feeding unit, which is electrically connected to the first radiating unit and the second radiating unit.

[0025] With such an arrangement, the terminal antenna with a shared grounding point of the present invention can not only improve the overall performance of the antenna, but also reduce the mutual interference between antennas within a limited antenna clearance area. In other words, the terminal antenna with a shared grounding point of the present invention can improve antenna performance and reduce interference between antennas. The main function of antenna shared grounding is to improve antenna performance and reduce interference through a shared grounding structure. The antenna shared grounding structure is a system in which multiple antennas share a grounding system. The present invention is particularly important in antenna equipment using a compact configuration because it can improve multiple antennas and achieve good isolation and a wide bandwidth.

[0026] Preferably, the first radiating unit is configured for the WiFi 2.4 / 5G frequency band, and the second radiating unit is configured for the GPS 1575MHz frequency band. The connection position between the first radiating unit and the second radiating unit is bent to form a bend, and the grounding point is provided at the connection position of the bend, and the grounding point is electrically connected to the first radiating unit and the second radiating unit. The feeding unit includes a first feeding point and a second feeding point, the first feeding point is electrically connected to the first radiating unit, and the second feeding point is electrically connected to the second radiating unit. The angle range of the bending angle is 22.5°±2°.

[0027] Furthermore, the first radiating element is configured as a sheet-shaped patch antenna, and the second radiating element is configured as a sheet-shaped patch antenna. The first radiating element and the second radiating element are arranged perpendicular to each other. Through extensive experiments, it was determined that a bending angle of 22.5°±2 is optimal. At this angle, the patch antenna adheres optimally to the housing during mounting, effectively preventing production defects such as wall climbing or crooked mounting.

[0028] Furthermore, the first radiating element is provided with a plurality of first through holes, which are arranged on a horizontal line and arranged along the extension direction of the first radiating element. The connection between the first radiating branch and the second radiating branch is provided with a plurality of second through holes, which are arranged on the same horizontal line. With this arrangement, when the patch antenna is attached to the housing, the extended attachment portion where the first and second through holes are located is bent. At this time, the first and second through holes can effectively expel air holes during attachment, making the patch antenna more conformable when attached and less prone to bubbles.

[0029] like Figure 2 As shown in FIG, the resonance simulation diagrams of the first radiation unit in the terminal antenna with a common ground point of the present invention in the WiFi 2.4 / 5G frequency band, namely WiFi 2400MHz-2500MHz and 5150MHz-5859MHz respectively; Figure 3 As shown, it is a resonance simulation diagram generated by GPS1575MHz of the second radiation unit in the terminal antenna with a common ground point of the present invention. Figure 4 Figure 2 shows a simulation diagram of the isolation between the first and second radiating elements in a terminal antenna with a shared ground point according to the present invention. This demonstrates that the isolation between the two radiating elements is significantly improved compared to traditional antenna designs, effectively reducing mutual interference between antennas. In other words, the shared ground point of the present invention effectively reduces mutual interference between different antennas. Since all antennas share a common ground system, signal interference between them is effectively managed and reduced, thereby improving overall communication quality.

[0030] In summary, the present invention provides a terminal antenna with a common grounding point, wherein the terminal antenna with a common grounding point includes a first radiating unit and a second radiating unit, wherein the first radiating unit and the second radiating unit share a common grounding point, the first radiating unit is connected to the second radiating unit, the second radiating unit includes a first radiating branch and a second radiating branch, the first radiating branch and the second radiating branch are connected to form a bending angle, one end of the first radiating branch is connected to the second radiating branch, and the other end of the first radiating branch is bent and connected to the first radiating unit, and the terminal antenna also includes a feeding unit, and the feeding unit is electrically connected to the first radiating unit and the second radiating unit. The terminal antenna with a common grounding point of the present invention can not only improve the overall performance of the antenna within a limited antenna clearance area, but also reduce mutual interference between antennas.

[0031] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. In addition, the different parts between the various embodiments can also be used in combination with each other, and this utility model does not limit this.

[0032] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A terminal antenna with a shared ground point, characterized in that: The terminal antenna with a common grounding point includes a first radiation unit and a second radiation unit, the first radiation unit and the second radiation unit share a common grounding point, the first radiation unit is connected to the second radiation unit, the second radiation unit includes a first radiation branch and a second radiation branch, the first radiation branch and the second radiation branch are connected to form a bending angle, one end of the first radiation branch is connected to the second radiation branch, and the other end of the first radiation branch is bent and connected to the first radiation unit, the terminal antenna also includes a feeding unit, and the feeding unit is electrically connected to the first radiation unit and the second radiation unit.

2. The terminal antenna with a common ground point according to claim 1, characterized in that: The first radiation unit is configured for the WiFi 2.4 / 5G frequency band, and the second radiation unit is configured for the GPS 1575MHz frequency band.

3. The terminal antenna with a common ground point according to claim 2, characterized in that: The connection position between the first radiation unit and the second radiation unit is bent to form a bend, the grounding point is provided at the bent connection position, and the grounding point is electrically connected to the first radiation unit and the second radiation unit.

4. The terminal antenna with a common ground point according to claim 3, characterized in that: The feeding unit includes a first feeding point and a second feeding point, the first feeding point is electrically connected to the first radiating unit, and the second feeding point is electrically connected to the second radiating unit.

5. The terminal antenna with a common ground point according to claim 4, characterized in that: The bending angle range is 22.5°±2°.

6. The terminal antenna with a common ground point according to claim 5, characterized in that: The first radiation unit is provided with a plurality of first through holes, and the plurality of first through holes are arranged on a horizontal straight line and arranged along an extension direction of the first radiation unit.

7. The terminal antenna with a common ground point according to claim 6, characterized in that: A plurality of second through holes are formed at the connection between the first radiating branch and the second radiating branch, and the plurality of second through holes are arranged on the same horizontal line.

8. The terminal antenna with a common ground point according to claim 7, characterized in that: The first radiation unit is configured as a sheet-shaped patch antenna, and the second radiation unit is configured as a sheet-shaped patch antenna.

9. The terminal antenna with a common ground point according to claim 8, characterized in that: The direction where the first radiation unit is located and the direction where the second radiation unit is located are perpendicular to each other.

10. A mobile terminal, characterized in that: The mobile terminal comprises the terminal antenna with a common ground point as claimed in any one of claims 1 to 9.

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