Monopole antenna structure

Abstract

The utility model discloses a monopole antenna structure, which comprises a dielectric substrate, and a first external electrode and a second external electrode which are respectively arranged at two ends of the dielectric substrate, the dielectric substrate is provided with a first surface and a second surface which are oppositely arranged, the first surface is provided with a first metal wire, and the second surface is provided with a second metal wire. The first external electrode is electrically connected with first connecting parts located on the first surface and the second surface, the second external electrode is electrically connected with second connecting parts located on the first surface and the second surface, and the first metal wire and the second metal wire are electrically connected through the first connecting parts or the second connecting parts. The structure of the antenna is simplified, and the production and manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology for electronic devices, specifically to a monopole antenna structure applicable to electronic devices with Bluetooth antennas such as headphones, speakers, and mobile phones. Background Technology

[0002] Bluetooth headsets apply Bluetooth technology to hands-free headsets, allowing users to make calls freely and easily in various ways without the constraints of wires. A monopole antenna is a type of Bluetooth antenna, which mainly includes a dielectric substrate and a first external electrode and a second external electrode disposed on the dielectric substrate.

[0003] To increase the length of the antenna, metal lines are usually placed on both the front and back sides of the dielectric substrate and connected together. There are two ways to connect the metal lines on a traditional monopole antenna: one is to set several side metal lines on the sidewall of the dielectric substrate, which are used to connect the metal lines on the front and back sides of the dielectric substrate; the other is to set several vias in the dielectric substrate, with a metal plating layer inside the vias to connect the metal lines on the front and back sides of the dielectric substrate. However, setting side metal lines or vias makes the antenna structure more complex and the manufacturing cost higher. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a monopole antenna structure that simplifies the antenna structure and reduces manufacturing costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A monopole antenna structure includes a dielectric substrate and a first external electrode and a second external electrode disposed on the dielectric substrate. The dielectric substrate has a first surface and a second surface disposed opposite to each other. The first surface has a first metal line and the second surface has a second metal line. The first external electrode is electrically connected to a first connection portion located on the first surface and the second surface, respectively. The second external electrode is electrically connected to a second connection portion located on the first surface and the second surface, respectively. The first metal line and the second metal line are electrically connected through the first connection portion or the second connection portion.

[0007] By providing a first surface and a second surface that are disposed opposite to each other on a dielectric substrate, a first metal line is provided on the first surface, a second metal line is provided on the second surface, a first connecting portion is provided on the first external electrode located on the first surface and the second surface respectively, and a second connecting portion is provided on the second external electrode located on the first surface and the second surface respectively, and the first metal line and the second metal line are electrically connected through the first connecting portion or the second connecting portion, the structure of the antenna is simplified and the manufacturing cost is reduced.

[0008] As a preferred embodiment, the first metal wire is electrically connected to both the first connecting portion and the second connecting portion, while the second metal wire is only connected to the second connecting portion.

[0009] As a preferred embodiment, the first surface is disposed on the front side of the dielectric substrate, and the second surface is disposed on the back side of the dielectric substrate.

[0010] As a preferred embodiment, the first external electrode is disposed at one end of the length direction of the dielectric substrate, and the second external electrode is disposed at the other end of the length direction of the dielectric substrate.

[0011] As a preferred embodiment, both the first metal wire and the second metal wire are arranged in a vortex shape.

[0012] As a preferred embodiment, both the first metal wire and the second metal wire are arranged in a snake shape.

[0013] As a preferred embodiment, both the first metal wire and the second metal wire are arranged in a zigzag shape.

[0014] As a preferred embodiment, both the first metal wire and the second metal wire include multiple horizontal metal segments and vertical metal segments formed by bending, with the multiple horizontal metal segments and vertical metal segments connected end to end in sequence.

[0015] As a preferred embodiment, a gap is maintained between two adjacent transverse metal segments and a gap is maintained between two adjacent longitudinal metal segments.

[0016] As a preferred embodiment, the outer surface of the protective layer on the front or back of the dielectric substrate is provided with markings.

[0017] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, by setting a first surface and a second surface opposite to each other on a dielectric substrate, a first metal line is provided on the first surface, a second metal line is provided on the second surface, a first connecting portion is provided on the first external electrode located on the first surface and the second surface respectively, and a second connecting portion is provided on the second external electrode located on the first surface and the second surface respectively, and the first metal line and the second metal line are electrically connected through the first connecting portion or the second connecting portion, the antenna structure is simplified and the manufacturing cost is reduced.

[0018] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0019] Figure 1 This is a front structural diagram of the first embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the connection between the first external electrode, the first metal wire, and the second external electrode on the front side of the first embodiment of this utility model.

[0021] Figure 3 This is a schematic diagram of the connection between the second metal wire and the second external electrode on the back side of the first embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the first external electrode, the first metal wire, and the second external electrode on the front side of the second embodiment of this utility model.

[0023] Figure 5 This is a schematic diagram of the connection between the second metal wire and the second external electrode on the back side of the second embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the connection between the first external electrode, the first metal wire, and the second external electrode on the front side of the third embodiment of this utility model.

[0025] Figure 7 This is a schematic diagram of the connection between the second metal wire and the second external electrode on the back side of the third embodiment of this utility model;

[0026] Figure 8 This is a schematic diagram of the connection between the first external electrode, the first metal wire, and the second external electrode on the front side of the fourth embodiment of this utility model.

[0027] Figure 9 This is a schematic diagram of the connection between the second metal wire and the second external electrode on the back side of the fourth embodiment of this utility model.

[0028] Explanation of reference numerals in the attached diagram:

[0029] 10-Dielectric substrate 101-First surface 102-Second surface

[0030] 103-Protective layer; 104-Identification; 11-First external electrode

[0031] 111-First connecting part; 12-Second external electrode; 121-Second connecting part

[0032] 20 - First metal line; 21 - Horizontal metal segment; 22 - Vertical metal segment

[0033] 30-Second Metal Wire Detailed Implementation

[0034] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] like Figure 2 As shown, for ease of description and understanding, the horizontal direction of this utility model is marked as X, and the vertical direction is marked as Y.

[0037] like Figure 1-3 As shown, this utility model discloses a monopole antenna structure. In the first embodiment, the monopole antenna structure includes a dielectric substrate 10, and a first external electrode 11 and a second external electrode 12 disposed on the dielectric substrate 10. The dielectric substrate 10 is made of ceramic material. The first external electrode 11 is disposed at one end of the length direction of the dielectric substrate 10, and the second external electrode 12 is disposed at the other end of the length direction of the dielectric substrate 10.

[0038] The dielectric substrate 10 has a first surface 101 and a second surface 102 disposed opposite to each other. The first surface 101 has a first metal line 20, and the second surface 102 has a second metal line 30. The first external electrode 11 is electrically connected to a first connecting portion 111 located on the first surface 101 and the second surface 102, respectively. The second external electrode 12 is electrically connected to a second connecting portion 121 located on the first surface 101 and the second surface 102, respectively. The first metal line 20 and the second metal line 30 are electrically connected through the first connecting portion 111 or the second connecting portion 121. Specifically, the first surface 101 is located on the front side of the dielectric substrate 10, and the second surface 102 is located on the back side of the dielectric substrate 10. The first metal line 20 is electrically connected to both the first connecting portion 111 and the second connecting portion 121, and the second metal line 30 is only connected to the second connecting portion 121.

[0039] The dielectric substrate 10 has a protective layer 103 on both the front and back sides. The protective layer 103 on the front side of the dielectric substrate 10 covers the first metal line 20, and the protective layer 103 on the back side of the dielectric substrate 10 covers the second metal line 30. A mark 104 is provided on the outer surface of the protective layer 103 on the front side of the dielectric substrate 10 near the first external electrode 11. The mark 104 can be used to distinguish the direction of the antenna.

[0040] The first metal wire 20 and the second metal wire 30 are both arranged in a spiral shape. The first metal wire 20 and the second metal wire 30 each include multiple horizontal metal segments 21 and vertical metal segments 22 formed by bending. The multiple horizontal metal segments 21 and vertical metal segments 22 are connected end to end in sequence. There is a gap between two adjacent horizontal metal segments 21 and a gap between two adjacent vertical metal segments 22.

[0041] like Figure 4-5 As shown, in the second embodiment, the difference from the first embodiment is that the first metal wire 20 and the second metal wire 30 are both arranged in a snake shape, and the length of the transverse metal segment 21 is greater than the length of the longitudinal metal segment 22.

[0042] like Figure 6-7 As shown, in the third embodiment, the difference from the first and second embodiments is that the length of the transverse metal segment 21 is less than the length of the longitudinal metal segment 22.

[0043] like Figure 8-9 As shown, in the fourth embodiment, the difference from the first and second embodiments is that the first metal wire 20 and the second metal wire 30 are both arranged in a zigzag shape.

[0044] It should be noted that the present invention can use the first metal line 20 on the front alone, or it can use the first metal line 2020 on the front and the second metal line 30 on the back at the same time.

[0045] In summary, this utility model simplifies the antenna structure and reduces manufacturing costs by providing a first surface 101 and a second surface 102 oppositely disposed on a dielectric substrate 10, providing a first metal line 20 on the first surface 101 and a second metal line 30 on the second surface 102, providing a first connecting portion 111 on the first external electrode 11 located on the first surface 101 and the second surface 102 respectively, and providing a second connecting portion 121 on the second external electrode 12 located on the first surface 101 and the second surface 102 respectively, and electrically connecting the first metal line 20 and the second metal line 30 through the first connecting portion 111 or the second connecting portion 121.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A monopole antenna structure, comprising a dielectric substrate, and a first external electrode and a second external electrode disposed on the dielectric substrate, characterized in that: The dielectric substrate has a first surface and a second surface disposed opposite to each other. The first surface has a first metal line and the second surface has a second metal line. The first external electrode is electrically connected to a first connection portion located on the first surface and the second surface, respectively. The second external electrode is electrically connected to a second connection portion located on the first surface and the second surface, respectively. The first metal line and the second metal line are electrically connected through the first connection portion or the second connection portion.

2. The monopole antenna structure according to claim 1, characterized in that, The first metal wire is electrically connected to both the first connecting part and the second connecting part, while the second metal wire is only connected to the second connecting part.

3. The monopole antenna structure according to claim 1, characterized in that, The first surface is disposed on the front side of the dielectric substrate, and the second surface is disposed on the back side of the dielectric substrate.

4. The monopole antenna structure according to claim 1, characterized in that, The first external electrode is located at one end of the length direction of the dielectric substrate, and the second external electrode is located at the other end of the length direction of the dielectric substrate.

5. The monopole antenna structure according to claim 1, characterized in that, Both the first and second metal wires are arranged in a vortex shape.

6. The monopole antenna structure according to claim 1, characterized in that, Both the first and second metal wires are arranged in a snake shape.

7. The monopole antenna structure according to claim 1, characterized in that, Both the first metal wire and the second metal wire are arranged in a zigzag shape.

8. The monopole antenna structure according to claim 5 or 6, characterized in that, Both the first metal wire and the second metal wire include multiple horizontal metal segments and vertical metal segments formed by bending, and the multiple horizontal metal segments and vertical metal segments are connected end to end in sequence.

9. The monopole antenna structure according to claim 8, characterized in that, A gap is maintained between two adjacent transverse metal segments, and a gap is maintained between two adjacent longitudinal metal segments.

10. The monopole antenna structure according to claim 1, characterized in that, The outer surface of the protective layer on the front or back of the dielectric substrate is marked.

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