Built-in antenna

Abstract

The utility model provides a built-in antenna, comprising a radio frequency signal line and a flexible circuit board, the flexible circuit board is provided with a ground wire pad and a feeder line pad, the radio frequency signal line is internally provided with a ground wire and a feeder line, the radio frequency signal line is connected to the flexible circuit board, the ground wire is electrically connected with the ground wire pad, and the feeder line pad is electrically connected with the feeder line pad. When the built-in antenna is assembled in the handheld terminal, the EVA foam is extruded, the occupied space of the built-in antenna and unnecessary accessories are reduced as much as possible, the size of the built-in antenna is reduced, and the built-in antenna is convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a built-in antenna. Background Art

[0002] Smartphones are becoming increasingly larger and thinner, requiring more and more antennas. To keep up with the development trend and meet the ever-changing demands of smartphones, the size of mobile phone antennas must be kept as small as possible. However, existing built-in antennas still cannot meet the assembly requirements of mobile phones.

[0003] In view of this, it is necessary to provide a new type of internal antenna to overcome the above-mentioned defects. Utility Model Content

[0004] The utility model aims to provide a built-in antenna, which reduces the space occupied by the built-in antenna and unnecessary accessories, reduces the size of the built-in antenna, and is easy to install.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a built-in antenna, including a radio frequency signal line and a flexible circuit board, wherein a ground wire pad and a feeder wire pad are provided on the flexible circuit board, and the radio frequency signal line has a ground wire and a feeder wire inside. The radio frequency signal line is connected to the flexible circuit board, and the ground wire is electrically connected to the ground wire pad, and the feeder wire is electrically connected to the feeder wire pad.

[0006] Preferably, the outer rings of the ground wire and the feeder wire are both wrapped with insulating rubber sleeves.

[0007] Preferably, the ground wire and the feeder are coaxially arranged, and the inner diameter of the ground wire is larger than the outer diameter of the feeder, and the feeder passes through the center of the ground wire.

[0008] Preferably, prestressed holes are provided on the flexible circuit board.

[0009] Preferably, the built-in antenna further includes EVA foam, and the flexible circuit board is bonded to the EVA foam.

[0010] Preferably, an IPEX antenna terminal is provided on the radio frequency signal line.

[0011] Compared with the prior art, the beneficial effect is that when the built-in antenna is assembled in the handheld terminal, the EVA foam will be squeezed, which minimizes the space occupied by the built-in antenna and unnecessary accessories, reduces the size of the built-in antenna, and facilitates installation.

[0012] Other features and advantages of the present invention will be set forth in the following description, and some will be apparent from the description, or may be learned through practice of the present invention. The features and advantages of the present invention may be realized and obtained through the elements and combinations specifically identified in the appended claims. These and other features of the present invention will become more apparent from the following description and the appended claims, or may be learned through practice of the embodiments described herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a structural diagram of the built-in antenna provided by the utility model.

[0015] Figure numerals: 1. RF signal line; 2. Flexible circuit board; 3. IPEX antenna terminal; 5. Ground pad; 6. Prestressed hole; 7. Feeder pad; 8. EVA foam. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and beneficial technical effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are only for the purpose of explaining the present invention and are not intended to limit the present invention.

[0017] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] It should also be noted that, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," "fixed," and "set" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will readily understand the specific meanings of these terms in this utility model based on specific circumstances.

[0019] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature identified as "first," "second," or "third" may explicitly or implicitly include one or more of such features. Furthermore, "plurality" and "several" refer to two or more, unless otherwise specifically defined.

[0020] See also Figure 1 The utility model provides a built-in antenna, including a radio frequency signal line 1 and a flexible circuit board 2, the flexible circuit board 2 is provided with a ground wire pad 5 and a feed line pad 7, the radio frequency signal line 1 has a ground wire and a feed line inside, the radio frequency signal line 1 is connected to the flexible circuit board 2, and the ground wire is electrically connected to the ground wire pad 5, and the feed line is electrically connected to the feed line pad 7.

[0021] In this way, through such a design, the space occupied by the built-in antenna and unnecessary accessories are reduced as much as possible, and the size of the built-in antenna is reduced.

[0022] In a preferred embodiment, the outer rings of the ground wire and the feeder wire are both wrapped with insulating rubber sleeves, so that the ground wire and the feeder wire are always insulated within the RF signal line 1.

[0023] In a preferred embodiment, the ground wire and the feeder are coaxially arranged, and the inner diameter of the ground wire is larger than the outer diameter of the feeder. The feeder passes through the center of the ground wire, thereby reducing the volume of the RF signal line.

[0024] In a preferred embodiment, the flexible circuit board 2 is provided with a prestressed hole 6 , and screws pass through the prestressed hole 6 of the flexible circuit board 2 to fix and install it.

[0025] In a preferred embodiment, the built-in antenna further includes EVA foam 8 , and the flexible circuit board 2 is bonded to the EVA foam 8 .

[0026] In a preferred embodiment, an IPEX antenna terminal 3 is provided on the radio frequency signal line 1 .

[0027] Thus, through such a design, when the built-in antenna is assembled in the handheld terminal, the EVA foam 8 will be squeezed, thereby minimizing the space occupied by the built-in antenna and unnecessary accessories, reducing the size of the built-in antenna, and facilitating installation.

[0028] The present invention is not limited to what is described in the specification and implementation modes, and therefore additional advantages and modifications can be easily realized by those skilled in the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrated examples shown and described herein.

Claims

1. A built-in antenna, characterized in that: The invention comprises a radio frequency signal line (1) and a flexible circuit board (2), wherein a ground wire pad (5) and a feeder pad (7) are provided on the flexible circuit board (2), a ground wire and a feeder pad are provided inside the radio frequency signal line (1), the radio frequency signal line (1) is connected to the flexible circuit board (2), the ground wire is electrically connected to the ground wire pad (5), and the feeder pad is electrically connected to the feeder pad (7).

2. The built-in antenna according to claim 1, wherein: The outer rings of the ground wire and the feeder wire are both wrapped with insulating rubber sleeves.

3. The built-in antenna according to claim 1, wherein: The ground wire and the feeder are coaxially arranged, and the inner diameter of the ground wire is larger than the outer diameter of the feeder, and the feeder passes through the center of the ground wire.

4. The internal antenna according to claim 1, wherein: The flexible circuit board (2) is provided with a prestressed hole (6).

5. The internal antenna according to claim 1, wherein: The built-in antenna further comprises EVA foam (8), and the flexible circuit board (2) is bonded to the EVA foam (8).

6. The built-in antenna according to claim 1, wherein: An IPEX antenna terminal (3) is provided on the radio frequency signal line (1).

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