CN219436130U

CN219436130U - Mobile terminal equipment

Info

Publication number: CN219436130U
Application number: CN202320134175.6U
Authority: CN
Inventors: 李树旺
Original assignee: Sunway Communication Beijing Co Ltd
Current assignee: Sunway Communication Beijing Co Ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-07-28
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses mobile terminal equipment, which comprises a main body, wherein a circuit board and an LDS antenna which is electrically communicated with the circuit board are arranged in the main body, the LDS antenna comprises a bracket and an antenna pattern arranged on the bracket, and a ceramic coupling sheet is also arranged in the main body and corresponds to the antenna pattern. According to the mobile terminal equipment, the ceramic coupling piece is additionally arranged above the LDS antenna to control the frequency offset of the return loss of the antenna system, so that the LDS antenna has higher total radiation efficiency; the mobile terminal equipment only needs to be additionally provided with the ceramic coupling piece on the basis of the existing mobile terminal equipment, so that the internal structure of the mobile terminal equipment is slightly changed, even no change exists, and the mobile terminal equipment is easy to popularize and apply; the ceramic coupling plates with different thicknesses can have different effects on the overall radiation efficiency and frequency offset of the LDS antenna, so that the mobile terminal device is very flexible in design and easy to optimize.

Description

Mobile terminal equipment

Technical Field

The utility model relates to the technical field of electronic equipment, in particular to mobile terminal equipment.

Background

With the continuous development of mobile phone communication and the wide application of 5G communication frequency bands, in order to better meet user experience, the requirements of industry on the total radiation efficiency of the antenna are higher.

However, in the existing mobile terminal devices such as mobile phones, the total radiation efficiency of the LDS antenna is often poor.

Disclosure of Invention

The technical problems solved by the utility model are as follows: the LDS antenna in the mobile terminal equipment has higher total radiation efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a mobile terminal equipment, includes the main part, be equipped with the circuit board in the main part and with the LDS antenna that the circuit board electricity switched on, the LDS antenna includes the support and locates antenna pattern on the support, still be equipped with ceramic coupling piece in the main part, ceramic coupling piece corresponds antenna pattern sets up.

Further, the main part includes the frame, one side of frame is equipped with the screen subassembly, the opposite side of frame is equipped with back lid, frame, screen subassembly and back lid three surround and form accommodation space, the circuit board the LDS antenna reaches the pottery coupling piece all is located accommodation space is interior.

Further, the ceramic coupling piece is fixed on the rear cover.

Further, an installation groove is formed in the inner side of the rear cover, and at least part of the area of the ceramic coupling piece is located in the installation groove.

Further, the ceramic coupling piece is adhesively connected with the rear cover.

Further, a connecting wire is arranged on the support, the circuit board is connected and conducted with the antenna pattern through the connecting wire, and the antenna pattern is located on one side, far away from the circuit board, of the support.

Further, the connecting wire is connected and conducted with the antenna pattern through the metallized hole.

Further, the thickness of the ceramic coupling piece is 0.4-0.7mm.

Further, a conducting spring piece is arranged on the circuit board, and the circuit board is in contact conduction with the LDS antenna through the conducting spring piece.

Further, a clearance area is formed in the circuit board, and the conducting spring piece is located in the clearance area.

The utility model has the beneficial effects that: according to the mobile terminal equipment, the ceramic coupling piece is additionally arranged above the LDS antenna to control the frequency offset of the return loss of the antenna system, so that the LDS antenna has higher total radiation efficiency; the mobile terminal equipment only needs to be additionally provided with the ceramic coupling piece on the basis of the existing mobile terminal equipment, so that the internal structure of the mobile terminal equipment is slightly changed, even no change exists, and the mobile terminal equipment is easy to popularize and apply; the ceramic coupling plates with different thicknesses can have different effects on the overall radiation efficiency and frequency offset of the LDS antenna, so that the mobile terminal equipment is flexible in design and easy to optimize, the debugging time consumption of the mobile terminal equipment is shortened, and the production benefit is improved; in addition, the ceramic coupling piece is additionally arranged, so that the requirements of the antenna on clearance and wiring area can be effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a cross-sectional view of a mobile terminal device according to a first embodiment of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a graph showing the total radiation efficiency versus the control, first and second experimental groups;

fig. 4 is a graph of total return loss versus control, experimental, and experimental two.

Reference numerals illustrate:

1. a main body; 11. a frame; 12. a screen assembly; 13. a rear cover;

2. a circuit board; 21. a clearance area;

3. an LDS antenna; 31. a bracket; 32. an antenna pattern; 33. connecting wires; 34. metallizing the holes;

4. a ceramic coupling piece;

5. the elastic sheet is conducted.

Detailed Description

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear … … are referred to, and the directional indication is merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture such as that shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Example 1

Referring to fig. 1 to 4, a first embodiment of the present utility model is as follows: a mobile terminal device including, but not limited to, a cell phone, a smart watch, a tablet computer, etc.

As shown in fig. 1 and fig. 2, the mobile terminal device includes a main body 1, a circuit board 2 and an LDS antenna 3 electrically connected to the circuit board 2 are disposed in the main body 1, the LDS antenna 3 includes a bracket 31 and an antenna pattern 32 disposed on the bracket 31, a ceramic coupling sheet 4 is further disposed in the main body 1, the ceramic coupling sheet 4 is disposed corresponding to the antenna pattern 32, and preferably, the ceramic coupling sheet 4 is disposed parallel to the antenna pattern 32.

The main body 1 comprises a frame 11, one side of the frame 11 is provided with a screen assembly 12, the other side of the frame 11 is provided with a rear cover 13, the frame 11, the screen assembly 12 and the rear cover 13 are surrounded to form an accommodating space, and the circuit board 2, the LDS antenna 3 and the ceramic coupling piece 4 are all positioned in the accommodating space.

In this embodiment, the ceramic coupling piece 4 is fixed on the rear cover 13, and a gap is provided between the ceramic coupling piece 4 and the antenna pattern 32. Optionally, the inner side of the rear cover 13 is provided with a mounting groove, at least a part of the ceramic coupling piece 4 is located in the mounting groove, and the mounting groove is convenient for positioning and assembling the ceramic coupling piece 4, and meanwhile, the whole thickness of the mobile terminal device can be thinned, so that the mobile terminal device can be thinned.

Optionally, the ceramic coupling piece 4 is adhesively connected to the rear cover 13. In other embodiments, the ceramic coupling piece 4 may be connected to the rear cover 13 in other manners, and in other embodiments, the ceramic coupling piece 4 may be fixed to the frame 11.

In order to ensure the conduction stability of the circuit board 2 and the LDS antenna 3, in this embodiment, a conduction elastic piece 5 is provided on the circuit board 2, the circuit board 2 is in contact conduction with the LDS antenna 3 through the conduction elastic piece 5, specifically, a clearance area 21 is provided on the circuit board 2, and the conduction elastic piece 5 is located in the clearance area 21.

In this embodiment, the support 31 is provided with a connection trace 33, the circuit board 2 is connected and conducted with the antenna pattern 32 through the connection trace 33, the antenna pattern 32 is located at a side of the support 31 away from the circuit board 2, the ceramic coupling piece 4 is located at a side of the antenna pattern 32 away from the support 31, and the connection trace 33 is in contact and conduction with the conductive elastic sheet 5.

Optionally, the connection trace 33 is connected to the antenna pattern 32 through a metallized hole 34. In other embodiments, the connection trace 33 and the antenna pattern 32 may be connected through a trace on the outer wall surface of the bracket 31.

The thickness of the ceramic coupling plate 4 is preferably 0.4-0.7mm.

The inventor carries out simulation test on the mobile terminal equipment of the embodiment:

the contrast group is characterized in that a ceramic coupling piece is not additionally arranged in the accommodating space;

in the first experimental group, a ceramic coupling sheet 4 with the thickness of 0.4mm is additionally arranged in the accommodating space;

in the second experimental group, a ceramic coupling piece 4 with the thickness of 0.7mm is additionally arranged in the accommodating space;

the other conditions of the control group, the first experimental group and the second experimental group are the same, wherein the performance parameters, the length dimension and the width dimension of the ceramic coupling pieces 4 in the first experimental group and the second experimental group are the same.

FIG. 3 is a graph showing the total radiation efficiency versus the control, first and second experimental groups; as can be seen from fig. 3, the total radiation efficiency of the control group was-2.14 dB around 5.9 GHz; experiment group one total radiation efficiency around 4.8GHz was-3.66 dB, and total radiation efficiency around 5.35GHz was-3.66 dB; the total radiation efficiency of experiment group II is-3.96 dB near 4.4GHz, and the total radiation efficiency near 5GHz is-3.58 dB;

FIG. 4 is a graph showing the total return loss versus the control, first and second experimental groups; as can be seen from fig. 4, the total return loss of the control group at around 5.93GHz is-6.66 dB; experiment group one total return loss near 4.83GHz was-3.83 dB and total return loss near 5.33GHz was-3.78 dB; the total return loss of experiment group two was-3.51 dB around 4.4GHz and-3.68 dB around 5 GHz.

From fig. 3 and fig. 4, it can be seen that the use of the ceramic coupling sheet 4 can effectively improve the overall radiation efficiency of the LDS antenna 3, and the ceramic coupling sheets 4 with different thicknesses have a large influence on the frequency offset of the antenna, and the ceramic coupling sheet 4 with a thickness of 0.7mm is about 400M lower than the ceramic coupling sheet 4 with a thickness of 0.4 mm.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. The utility model provides a mobile terminal equipment, includes the main part, be equipped with the circuit board in the main part and with the LDS antenna of circuit board electric conduction, LDS antenna includes the support and locates antenna pattern on the support, its characterized in that: and a ceramic coupling piece is also arranged in the main body, and the ceramic coupling piece is arranged corresponding to the antenna pattern.

2. The mobile terminal device according to claim 1, characterized in that: the main part includes the frame, one side of frame is equipped with the screen subassembly, the opposite side of frame is equipped with back lid, frame, screen subassembly and back lid three surround and form accommodation space, the circuit board the LDS antenna reaches the ceramic coupling piece all is located in the accommodation space.

3. A mobile terminal device according to claim 2, characterized in that: the ceramic coupling piece is fixed on the rear cover.

4. A mobile terminal device according to claim 3, characterized in that: the inner side of the rear cover is provided with a mounting groove, and at least part of the area of the ceramic coupling piece is positioned in the mounting groove.

5. A mobile terminal device according to claim 3, characterized in that: the ceramic coupling piece is connected with the rear cover in an adhesive mode.

6. A mobile terminal device according to claim 2, characterized in that: the antenna is characterized in that a connecting wiring is arranged on the support, the circuit board is connected and conducted with the antenna pattern through the connecting wiring, and the antenna pattern is located on one side, away from the circuit board, of the support.

7. The mobile terminal device of claim 6, wherein: the connecting wire is connected and conducted with the antenna pattern through the metallized hole.

8. The mobile terminal device according to claim 1, characterized in that: the thickness of the ceramic coupling piece is 0.4-0.7mm.

9. The mobile terminal device according to claim 1, characterized in that: the circuit board is provided with a conducting spring plate, and the circuit board is in contact conduction with the LDS antenna through the conducting spring plate.

10. The mobile terminal device according to claim 9, characterized in that: and a clearance area is formed on the circuit board, and the conducting elastic sheet is positioned in the clearance area.