Antenna module and electronic device

Abstract

The embodiment of the utility model relates to an antenna module and electronic equipment in the technical field of antennas, and the antenna module comprises a mainboard; the first antenna unit and the second antenna unit are used for transmitting and receiving electromagnetic waves; the type of the first antenna unit is different from that of the second antenna unit; the first feed part is used for connecting the first antenna unit and the mainboard; and the second feed part is used for connecting the second antenna unit and the mainboard. According to the arrangement, the antenna module comprises the first antenna unit and the second antenna unit which are different in type, the types of the antenna units can be set according to the antenna environment adaptability, the radiation efficiency and the cost can be considered at the same time, and the flexibility of antenna arrangement is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of antenna technology, and in particular, to an antenna module and an electronic device. Background Art

[0002] With the rapid development of 5G mobile phones, mobile phone screens are getting bigger and bigger, and major terminal manufacturers have higher and higher requirements for antenna performance. From the perspective of the existing overall environment, the antenna, as a radiator for mobile phone communications, has caused the corresponding environment to become worse and worse. If a flexible printed circuit board (FPC) antenna is used, it cannot be flattened due to structural space limitations, resulting in limited routing and inability to fully utilize the limited clearance and relatively good environment, thus affecting the antenna radiation efficiency; if a printed direct structure (PDS) antenna or a laser direct structure (LDS) antenna is used, the cost increases due to the use of plastic particles and antenna spraying technology. Utility Model Content

[0003] Based on this, it is necessary to address the above technical issues, and the present application provides an antenna module and an electronic device.

[0004] In one aspect, the present application provides an antenna module, comprising:

[0005] Motherboard;

[0006] A first antenna unit and a second antenna unit are used to transmit and receive electromagnetic waves; the type of the first antenna unit is different from the type of the second antenna unit;

[0007] A first feeding portion, used to connect the first antenna unit and the mainboard;

[0008] The second feeding part is used to connect the second antenna unit and the main board.

[0009] Optionally, the first antenna unit includes one of a flexible printed circuit board antenna, a direct molding antenna and a microstrip dielectric antenna, and the second antenna unit includes one of a flexible printed circuit board antenna, a direct molding antenna and a microstrip dielectric antenna.

[0010] Optionally, the first antenna unit comprises a flexible printed circuit board antenna, and the second antenna unit comprises a direct molding antenna.

[0011] Optionally, the first antenna unit includes a first antenna trace and a first feeding point, and the first antenna trace is electrically connected to the first feeding portion through the first feeding point;

[0012] The second antenna unit includes a second antenna trace and a second feeding point, and the second antenna trace is electrically connected to the second feeding portion through the second feeding point.

[0013] Optionally, the antenna module further includes:

[0014] A middle frame, comprising a first surface and a second surface arranged opposite to each other, wherein the first surface faces the main board; the first antenna trace, the first feeding point and the second feeding point are located on the first surface, and the second antenna trace is located on the second surface;

[0015] The middle frame further includes a through hole, and in a direction from the first surface to the second surface, the through hole passes through the middle frame, and the second antenna trace is electrically connected to the second feeding point through the through hole.

[0016] Optionally, the first feeding point is planar, and a side length of the first feeding point is greater than or equal to 2 mm.

[0017] Optionally, the antenna module further includes:

[0018] A grounding portion is connected between the first antenna unit and the mainboard, and / or is connected between the second antenna unit and the mainboard.

[0019] Optionally, the first antenna unit and / or the second antenna unit further comprises: a return point;

[0020] The return point is electrically connected to the ground portion.

[0021] Optionally, the antenna module further includes:

[0022] A microstrip line is located on the main board and is used to connect the first feeding part and the second feeding part.

[0023] On the other hand, the present disclosure further provides an electronic device, including: any one of the above-mentioned antenna modules.

[0024] Compared with the prior art, the technical solution provided by this application has the following advantages:

[0025] The present application provides an antenna module and an electronic device, wherein the antenna module includes: a mainboard; a first antenna unit and a second antenna unit, for transmitting and receiving electromagnetic waves; the type of the first antenna unit is different from the type of the second antenna unit; a first feeder, for connecting the first antenna unit to the mainboard; and a second feeder, for connecting the second antenna unit to the mainboard. In this way, the antenna module includes different types of first and second antenna units, and the type of antenna unit can be set according to the adaptability of the antenna environment, so as to take into account both radiation efficiency and cost, thereby improving the flexibility of antenna arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0027] In order to more clearly illustrate the embodiments of the present application 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] Figure 1 It is a structural schematic diagram of an antenna module in the related art;

[0029] Figure 2 A circuit diagram of an antenna module in the related art;

[0030] Figure 3 A top view of a mainboard in the related art;

[0031] Figure 4 A schematic diagram of the structure of an antenna module provided in an embodiment of the present application;

[0032] Figure 5 A circuit diagram of an antenna module provided in an embodiment of the present application;

[0033] Figure 6 A top view of a mainboard provided in an embodiment of the present application;

[0034] Figure 7 A schematic diagram of the structure of another antenna module provided in an embodiment of the present application;

[0035] Figure 8 A schematic diagram of the structure of another antenna module provided in an embodiment of the present application;

[0036] Fig. 9 A schematic diagram of the structure of another antenna module provided in an embodiment of the present application;

[0037] Fig.10 A schematic diagram of the structure of another antenna module provided in an embodiment of the present application.

[0038] Among them, 1. antenna unit; 11. first antenna unit; 111. first antenna routing; 112. first feeding point; 113. return point; 12. second antenna unit; 121. second antenna routing; 122. second feeding point; 2. main board; 3. feeding part; 31. first feeding part; 32. second feeding part; 4. grounding part; 5. microstrip line; 6. middle frame; 61. first side; 62. second side; 63. through hole. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] In related technologies, such as Figure 1-3 As shown, the antenna module includes an antenna unit 1, a feeder 3, a grounding portion 4 and a mainboard 2. The antenna unit 1 is electrically connected to the mainboard 2 through the feeder 3, and the antenna unit 1 is also electrically connected to the mainboard 2 through the grounding portion 4. The antenna unit 1 adopts a single form of antenna unit, such as an FPC antenna, an LDS antenna, a PDS antenna or a microstrip dielectric antenna (MDA) antenna.

[0041] If an FPC antenna is used, it cannot be flattened due to structural space limitations, resulting in limited routing and inability to fully utilize the limited clearance and relatively good environment, thus affecting the antenna radiation efficiency. If a PDS antenna or LDS antenna is used, the cost increases due to the use of plastic particles and antenna spraying processes. If an MDA antenna is used, it is highly dependent on simulation technology, and the hardware carrier is wrapped in plastic, making debugging difficult.

[0042] In order to solve the above technical problems, the embodiments of the present application provide an antenna module and an electronic device, the antenna module comprising: a mainboard; a first antenna unit and a second antenna unit, for transmitting and receiving electromagnetic waves; the type of the first antenna unit is different from the type of the second antenna unit; a first feeder, for connecting the first antenna unit to the mainboard; and a second feeder, for connecting the second antenna unit to the mainboard. In this way, the antenna module comprises different types of first antenna units and second antenna units, and the type of antenna unit can be set according to the adaptability of the antenna environment, so as to take into account both radiation efficiency and cost, thereby improving the flexibility of antenna arrangement.

[0043] The antenna module and the electronic device provided in the embodiments of the present application are exemplarily described below with reference to the accompanying drawings.

[0044] In some embodiments, Figure 4-6 As shown, the antenna module includes: a first antenna unit 11 , a second antenna unit 12 , a mainboard 2 , a first feeding portion 31 and a second feeding portion 32 .

[0045] The mainboard 2 is used to conduct electromagnetic signals to the antenna unit (including the first antenna unit 11 and the second antenna unit 12), and transmit and receive electromagnetic waves through the antenna unit. In some embodiments, the mainboard 2 includes a printed circuit board (PCB).

[0046] The first antenna unit 11 and the second antenna unit 12 are used as radiators for transmitting and receiving electromagnetic waves. The type of the first antenna unit 11 is different from the type of the second antenna unit 12. For example, the first antenna unit 11 is an FPC antenna, and the second antenna unit 12 is one of a PDS antenna, an LDS antenna, or an MDA antenna; or, the first antenna unit 11 is a PDS antenna or an LDS antenna, and the second antenna unit 12 is an FPC antenna or an MDA antenna. By combining two different types of antenna units, it is ensured that the antenna module has a high radiation efficiency and can effectively control the cost, while achieving both radiation efficiency and cost, thereby improving the flexibility of antenna arrangement.

[0047] The type of antenna unit can be adaptively set according to the specific antenna environment. For example, an FPC antenna can be set in an area with a relatively flat and wide spatial structure; an LDS antenna or a PDS antenna can be set in an area with a good antenna environment but limited spatial structure.

[0048] The first feeder 31 is used to connect the first antenna unit 11 with the mainboard 2, and the first antenna unit 11 is electrically connected to the mainboard 2 through the first feeder 31. The second feeder 32 is used to connect the second antenna unit 12 with the mainboard 2, and the second feeder 32 is electrically connected to the mainboard 2 through the second feeder 32. Figure 6 As shown, the first feeding portion 31 and the second feeding portion 32 are located on the main board 2 and are electrically connected to the main board 2 .

[0049] When the antenna module is working, after the current enters the first antenna unit 11 through the first feeding part 31, the current also enters the second antenna unit 12 through the second feeding part 32. By setting the type of the first antenna unit 11 to be different from the type of the second antenna unit 12, the antenna performance and cost are cleverly balanced. Under the premise of controllable cost, the antenna debugging is more flexible and better radiation efficiency can be obtained.

[0050] The antenna module provided in the embodiment of the present application includes: a mainboard 2; a first antenna unit 11 and a second antenna unit 12, which are used to transmit and receive electromagnetic waves; the type of the first antenna unit 11 is different from the type of the second antenna unit 12; a first feeder 31, which is used to connect the first antenna unit 11 with the mainboard; and a second feeder 32, which is used to connect the second antenna unit 12 with the mainboard 2. In this way, the antenna module includes different types of first antenna units 11 and second antenna units 12, and the type of antenna unit can be set according to the adaptability of the antenna environment, so as to take into account both radiation efficiency and cost, thereby improving the flexibility of antenna arrangement.

[0051] In some embodiments, the first antenna unit 11 includes one of a flexible printed circuit board antenna (ie, FPC antenna), a direct molding antenna, and a microstrip dielectric antenna (ie, MDA antenna), and the second antenna unit 12 includes one of a FPC antenna, a direct molding antenna, and an MDA antenna.

[0052] The type of the first antenna unit 11 and the type of the second antenna unit 12 include one of an FPC antenna, a direct molding antenna and an MDA antenna, and the type of the first antenna unit is different from the type of the second antenna unit.

[0053] Exemplarily, if the first antenna unit 11 is an FPC antenna, the second antenna unit 12 is a direct-molded antenna (including a PDS antenna and an LDS antenna) or an MDA antenna; or, if the first antenna unit 11 is a direct-molded antenna, the second antenna unit 12 is an FPC antenna or an MDA antenna; or, if the first antenna unit 11 is an MDA antenna, the second antenna unit 12 is a direct-molded antenna or an MDA antenna.

[0054] In some embodiments, the first antenna unit 11 includes a flexible printed circuit board antenna (ie, FPC antenna), and the second antenna unit 12 includes a direct molding antenna, which includes a printed direct molding antenna (PDS antenna) or a laser direct molding antenna (ie, LDS antenna).

[0055] In this embodiment, the antenna module includes two types of antenna units, namely, an FPC antenna and a direct molding antenna. The FPC antenna is arranged in an area with a relatively flat and wide spatial structure, and the LDS antenna (or PDS antenna) is arranged in an area with a good antenna environment but a limited spatial structure. The LDS antenna (or PDS antenna) is less restricted by the structure, so that the area with a good antenna environment can be fully utilized. Compared with a pure LDS antenna (or PDS antenna), the antenna module not only saves costs, but also has a more flexible antenna setting and higher radiation efficiency.

[0056] In some embodiments, Figure 7As shown, the antenna module further includes: a microstrip line 5 ; wherein the microstrip line 5 is located on the mainboard 2 , the microstrip line 5 is electrically connected to the mainboard 2 , and the microstrip line 5 is used to connect the first feeding portion 31 and the second feeding portion 32 .

[0057] The first feeder 31 and the second feeder 32 are connected to each other through the microstrip line 5. When the antenna module is working, the current conducted by the mainboard 2 enters the first feeder 31 through the microstrip line 5, passes through the first antenna unit 11, and then enters the second antenna unit 12 through the second feeder 32.

[0058] The first feeding part 31 and the second feeding part 32 may be configured as feeding springs, metal spring needles, or other conductive bodies, which are not limited herein.

[0059] In some embodiments, Figure 8 As shown, the antenna module further includes: a grounding portion 4 , the grounding portion 4 is connected between the first antenna unit 11 and the mainboard 2 , and / or the grounding portion 4 is connected between the second antenna unit 12 and the mainboard 2 .

[0060] One end of the grounding portion 4 is electrically connected to the first antenna unit 11 and / or the second antenna unit 12 , and the other end of the grounding portion 4 is electrically connected to a grounding point on the mainboard 2 .

[0061] The grounding portion 4 can be configured as a grounding spring sheet, a metal spring needle, or other conductive bodies, which are not limited here.

[0062] It should be noted that Figure 8 The antenna module is shown to include a grounding portion 4, which is connected between the second antenna unit 12 and the mainboard 2, and does not constitute a limitation on the antenna module provided in the embodiment of the present application. In other embodiments, the antenna module includes a grounding portion 4, which can also be connected between the first antenna unit 11 and the mainboard 2; or, the antenna module includes two grounding portions 4, one of which is connected between the first antenna unit 11 and the mainboard 2, and the other grounding portion 4 is connected between the second antenna unit 12 and the mainboard 2.

[0063] In some embodiments, the first antenna unit 11 includes a first antenna trace 111 and a first feeding point 112, the first antenna trace 111 is electrically connected to one end of the first feeding part 31 through the first feeding point 112, and the other end of the first feeding part 31 is electrically connected to the microstrip line 5; the second antenna unit 12 includes a second antenna trace 121 and a second feeding point 122, the second antenna trace 121 is electrically connected to one end of the second feeding part 32 through the second feeding point 122, and the other end of the second feeding part 32 is electrically connected to the microstrip line 5; the first feeding part 31 and the second feeding part 32 are electrically connected to the mainboard 2 through the microstrip line 5.

[0064] In some embodiments, Figure 9-10 As shown, the antenna module also includes: a middle frame 6, the middle frame 6 includes a first surface 61 and a second surface 62 that are relatively arranged, the first surface 61 faces the main board 2, and the second surface 62 is located on the side away from the main board 2; the first antenna trace 111, the first feeding point 112 and the second feeding point 122 are located on the first surface 61, and the second antenna trace 121 is located on the second surface 62; the middle frame 6 also includes a through hole 63, in the direction from the first surface 61 to the second surface 62, the through hole 63 passes through the middle frame 6, and the second antenna trace 121 is electrically connected to the second feeding point 122 through the through hole 63.

[0065] In this embodiment, the first antenna trace 111 and the second antenna trace 121 are respectively arranged on two surfaces of the middle frame 6, the first antenna trace 111, the first feeding point 112 and the second feeding point 122 are located on the first surface 61, and the second antenna trace 121 is located on the second surface 62. The first antenna trace 111 is electrically connected to the first feeding point 112, and the first feeding point 112 is used to be electrically connected to the first feeding part 31, and the first feeding part 31 is electrically connected to the microstrip line 5 arranged on the main board 2; when preparing the second antenna trace 121, the silver paste of the second antenna trace 121 flows to the first surface 61 through the through hole 63, and is electrically connected to the second feeding point 122 located on the first surface 61, the second feeding point 122 is used to be electrically connected to the second feeding part 32, and the second feeding part 32 is electrically connected to the microstrip line 5 arranged on the main board 2, and the first feeding part 31 and the second feeding part 32 are mutually conductive through the microstrip line 5.

[0066] In some embodiments, Fig. 9 As shown, the first feeding point 112 is planar, and the side length of the first feeding point 112 is greater than or equal to 2 mm.

[0067] This arrangement increases the area of ​​the first feeding point 112, and even if the position of the first feeding portion 31 is offset, the electrical connection between the first feeding point 112 and the first feeding portion 31 can be ensured to be stable. Similarly, the second feeding point 122 is planar, and the side length of the second feeding point 122 is greater than or equal to 2 mm.

[0068] It should be noted that Fig. 9 The shapes of the first feed point 112 and the second feed point 122 are both rectangular, which is only exemplarily shown, but does not constitute a limitation on the antenna module provided in the embodiment of the present application. In other embodiments, the shapes of the first feed point 112 and the second feed point 122 also include a circle, a triangle, a trapezoid or a polygon, and the shape of the first feed point 112 and the shape of the second feed point 122 may be the same or different, which is not limited here.

[0069] In some embodiments, the first antenna unit 11 and / or the second antenna unit 12 further includes: a return point 113 ; and the return point 113 is electrically connected to the ground portion 4 .

[0070] For example, Fig. 9 As shown, the first antenna unit 11 includes a first antenna trace 111 , a first feeding point 112 and a return point 113 . The first antenna trace 111 is electrically connected to the first feeding portion 31 via the first feeding point 112 , and the first antenna trace 111 is electrically connected to the ground portion 4 via the return point 113 .

[0071] In some embodiments, Fig. 9 As shown, the return point 113 is located on the first surface 61 .

[0072] Among them, if the first antenna unit 11 includes a return point 113, the first antenna trace 111 is directly electrically connected to the return point 113; if the second antenna unit 12 includes a return point 113, since the second antenna trace 121 is located on the second surface 62, the second antenna trace 121 is electrically connected to the return point 113 through the through hole 63, which is similar to the connection method between the second antenna trace 121 and the second feeding point 122.

[0073] In some embodiments, Fig. 9 As shown, the return point 113 is in a planar shape, and the side length of the return point 113 is greater than or equal to 2 mm.

[0074] Such an arrangement increases the area of ​​the return point 113 , and even if the position of the grounding portion 4 is offset, the stability of the electrical connection between the return point 113 and the grounding portion 4 can be ensured.

[0075] It should be noted that Fig. 9 The shape of the return point 113 is only shown as a rectangle, but it does not limit the antenna module provided in the embodiment of the present application. In other embodiments, the shape of the return point 113 also includes a circle, a triangle, a trapezoid or a polygon, which is not limited here.

[0076] On the basis of the above implementation, an embodiment of the present application further provides an electronic device, which includes: any one of the above antenna modules, which has corresponding beneficial effects, and will not be described again here to avoid repeated description.

[0077] The electronic devices include but are not limited to mobile phones, tablets and phone watches, and also include other electronic devices known to those skilled in the art, which are not limited here.

[0078] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An antenna module, characterized in that: include: Motherboard; A first antenna unit and a second antenna unit, for transmitting and receiving electromagnetic waves; The type of the first antenna unit is different from the type of the second antenna unit; A first feeding portion, used to connect the first antenna unit and the mainboard; The second feeding part is used to connect the second antenna unit and the main board.

2. The antenna module according to claim 1, characterized in that: The first antenna unit includes one of a flexible printed circuit board antenna, a direct molding antenna and a microstrip dielectric antenna, and the second antenna unit includes one of a flexible printed circuit board antenna, a direct molding antenna and a microstrip dielectric antenna.

3. The antenna module according to claim 2, characterized in that: The first antenna unit comprises a flexible printed circuit board antenna, and the second antenna unit comprises a direct molding antenna.

4. The antenna module according to claim 3, characterized in that: The first antenna unit includes a first antenna trace and a first feeding point, and the first antenna trace is electrically connected to the first feeding portion through the first feeding point; The second antenna unit includes a second antenna trace and a second feeding point, and the second antenna trace is electrically connected to the second feeding portion through the second feeding point.

5. The antenna module according to claim 4, characterized in that: Also includes: A middle frame, comprising a first surface and a second surface arranged opposite to each other, wherein the first surface faces the main board; the first antenna trace, the first feeding point and the second feeding point are located on the first surface, and the second antenna trace is located on the second surface; The middle frame further includes a through hole, and in a direction from the first surface to the second surface, the through hole passes through the middle frame, and the second antenna trace is electrically connected to the second feeding point through the through hole.

6. The antenna module according to claim 5, characterized in that: The first feeding point is in a planar shape, and the side length of the first feeding point is greater than or equal to 2 mm.

7. The antenna module according to claim 1, characterized in that: Also includes: A grounding portion is connected between the first antenna unit and the mainboard, and / or is connected between the second antenna unit and the mainboard.

8. The antenna module according to claim 7, characterized in that: The first antenna unit and / or the second antenna unit further comprises: a return point; The return point is electrically connected to the grounding portion.

9. The antenna module according to any one of claims 1 to 8, characterized in that: Also includes: A microstrip line is located on the main board and is used to connect the first feeding part and the second feeding part.

10. An electronic device, characterized in that: include: The antenna module according to any one of claims 1 to 9.

Images