CN216928930U

CN216928930U - Antenna and electronic equipment

Info

Publication number: CN216928930U
Application number: CN202122838396.5U
Authority: CN
Inventors: 冯超; 曲增朝; 崔耀中; 张帆; 阳险峰
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-07-08
Anticipated expiration: 2031-11-18

Abstract

The embodiment of the application is suitable for the technical field of antennas, and provides an antenna and electronic equipment, wherein the antenna comprises a main radiation branch, a parasitic branch, a feed point and at least one suspended metal body, the main radiation branch and the parasitic branch are coupled through a gap to form a signal, the main radiation branch is connected with the feed point, and the orthographic projection of the at least one suspended metal body, the main radiation branch and the parasitic branch are overlapped; because the orthographic projection of at least one suspended metal body is coupled and connected with the main radiation branch and the parasitic branch, the main radiation branch and the parasitic branch can be coupled with signals through an overlapping area on the orthographic projection of at least one suspended metal body, and the signals are equivalent to the signals coupled by the main radiation branch and the parasitic branch through cross sections on the main radiation branch and the parasitic branch and at least one suspended metal body.

Description

Antenna and electronic equipment

Technical Field

The embodiment of the application relates to the technical field of antennas, in particular to an antenna and electronic equipment.

Background

With the trend of miniaturization of electronic devices, the size of antennas on electronic devices is also reduced. The smaller the volume of the antenna, the smaller the equivalent radiation aperture of the antenna, which may result in the performance degradation of the antenna.

In order to increase the equivalent radiation aperture of the antenna, a parasitic branch is usually added on one side of the main radiation branch of the antenna, and electromagnetic wave signals can be coupled between the main radiation branch and the parasitic branch of the antenna, so that the equivalent radiation aperture of the antenna is increased, and the performance of the antenna is improved. However, the size of the main radiating branch and the parasitic branch is limited by the miniaturization of the electronic device, and the areas of the main radiating branch and the parasitic branch, which can be used for coupling electromagnetic wave signals, are small, so that the coupled electromagnetic wave signals are limited, and the performance of the antenna cannot be effectively improved.

Therefore, how to improve the performance of the antenna becomes a problem to be solved urgently.

Disclosure of Invention

The embodiment of the application provides an antenna and an electronic device, and the performance of the antenna can be improved.

In a first aspect, an antenna is provided, which includes a main radiating branch, a parasitic branch, a feeding point, and at least one suspended metal body; the main radiation branch and the parasitic branch are coupled with signals through gaps; at least one suspension metal body is coupled with the main radiation branch and the parasitic branch; the main radiating branch and the parasitic branch are coupled with signals through at least one suspended metal body, and the main radiating branch is connected with the feed point.

The antenna provided by the embodiment of the application comprises a main radiation branch, a parasitic branch, a feed point and at least one suspended metal body, wherein the main radiation branch and the parasitic branch are coupled with signals through a gap, the main radiation branch is connected with the feed point, and an overlapping region exists between the orthographic projection of the at least one suspended metal body and the main radiation branch and the parasitic branch; because the orthographic projection of at least one suspended metal body is coupled and connected with the main radiation branch knot and the parasitic branch knot, the main radiation branch knot and the parasitic branch knot can be coupled with signals through an overlapping area on the orthographic projection of at least one suspended metal body, and the signals are equivalent to the signals coupled by the main radiation branch knot and the parasitic branch knot through cross sections on the main radiation branch knot and the parasitic branch knot and at least one suspended metal body; compared with the prior art that the equivalent radiation aperture of the antenna is increased by adopting the parasitic branch, the antenna provided by the embodiment of the application can effectively improve the performance of the antenna.

In one embodiment, the antenna is applied to an electronic device, and the at least one floating metal body includes a first floating metal body and a second floating metal body, the first floating metal body is connected to a housing of the electronic device, and the second floating metal body is connected to a main board bracket of the electronic device.

The antenna provided in the embodiment of the application is applied to electronic equipment and comprises a main radiation branch, a parasitic branch, a first suspended metal body and a second suspended metal body of a feed point, wherein the main radiation branch and the parasitic branch are coupled with signals through a gap; the first suspended metal body and the second suspended metal body are coupled with the main radiating branch and the parasitic branch; the main radiation branch and the parasitic branch are coupled with signals through the first suspended metal body and the second suspended metal body, and the main radiation branch is connected with the feed point. Compared with the prior art, the first suspended metal body and the second suspended metal body are added to couple signals, so that the coupling signals between the parasitic branch and the main radiating branch are enhanced, and the equivalent radiating aperture of the antenna is improved; compared with the prior art that the equivalent radiation aperture of the antenna is increased by adopting the parasitic branch, the antenna provided by the embodiment of the application can effectively improve the performance of the antenna.

In one embodiment, the first suspended metal body is a copper sheet and is a rectangular metal body; the second suspended metal body is a metal body formed by a laser direct structuring technique LDS.

In the embodiment of this application, first suspension metal body is the copper sheet, and the second suspension metal body is the suspension metal body that forms through LDS, and first suspension metal body is a common metal material promptly, and the second suspension metal body is the metal body that forms through current ripe technique for the process of obtaining first suspension metal body and second suspension metal body is comparatively simple and convenient, has reduced the degree of difficulty of obtaining first suspension metal body and second suspension metal body. Further, the first suspension metal body is a rectangular metal body, that is, the first suspension metal body can be obtained through simple processing, and convenience in obtaining the first suspension metal body is improved. Because the first suspended metal body can be fixed through the shell of the electronic equipment, the shape of the first suspended metal body can be matched with the shell of the electronic equipment under the condition that the first suspended metal body is a rectangular metal body, so that the first suspended metal body can be more firmly fixed on the shell of the electronic equipment, and the reliability of the first suspended metal body is improved.

In one embodiment, the shape of the second suspended metal body is determined according to the shape of the motherboard bracket, and the second suspended metal body is an L-shaped metal body.

In the embodiment of the application, the shape of the second suspended metal body is determined according to the shape of the main board support, that is, in the process of obtaining the second suspended metal body, the second suspended metal body does not need to be opened independently, the existing main board support is directly plated by the LDS to obtain the second suspended metal body, the difficulty of obtaining the second suspended metal body is reduced, and the cost of obtaining the second suspended metal body is also reduced. In a possible case, the shape of the main board support is L-shaped, and correspondingly, the second suspended metal body is L-shaped, that is, the shape of the second suspended metal body is matched with the shape of the main board support, so that the second suspended metal body can be more firmly fixed on the main board support, and the reliability of the second suspended metal body is improved.

In one embodiment, the second suspended metal body includes a first plane, the first plane is parallel to a second plane, and the second plane is a plane on which an orthographic projection of the second suspended metal body on the main radiating branch and the parasitic branch is located.

In one embodiment, the first suspended metal body is at an angle of 90 ° to the first plane.

In one embodiment, the at least one floating metal body further comprises a third floating metal body, and the third floating metal body is connected with a middle frame structure of the electronic device; the third suspended metal body and the middle frame structure are obtained by an integral forming method.

The antenna that embodiment of this application provided includes main radiation minor matters, parasitic minor matters, the feed point, first suspended metal body, second suspended metal body and third suspended metal body, main radiation minor matters passes through gap coupling signal with parasitic minor matters, first suspended metal body, second suspended metal body, third suspended metal body and main radiation minor matters, parasitic minor matters coupling connection, main radiation minor matters and parasitic minor matters pass through first suspended metal body, second suspended metal body, third suspended metal body coupling signal, main radiation minor matters connects the feed point. The first suspension metal body is connected with a shell of the electronic equipment, the second suspension metal body is connected with a main board support of the electronic equipment, and the third suspension metal body is connected with a middle frame structure of the electronic equipment. The main radiation branch and the parasitic branch couple signals through the first suspended metal body, the second suspended metal body and the third suspended metal body, which is equivalent to the main radiation branch and the parasitic branch couple signals through the cross section, the first suspended metal body, the second suspended metal body and the third suspended metal body on the main radiation branch and the parasitic branch, compared with the prior art, the first suspended metal body, the second suspended metal body and the third suspended metal body are added to couple signals, so that the coupling signals between the parasitic branch and the main radiation branch are enhanced, and the equivalent radiation aperture of the antenna is improved; compared with the prior art that the equivalent radiation aperture of the antenna is increased by adopting the parasitic branch, the antenna provided by the embodiment of the application can effectively improve the performance of the antenna.

In a second aspect, there is provided an electronic device comprising an antenna as described in the first aspect above.

In one embodiment, the antenna includes at least one floating metal body, the at least one floating metal body includes a first floating metal body and a second floating metal body, the electronic device further includes a housing and a motherboard bracket, the first floating metal body is connected to the housing, and the second floating metal body is connected to the motherboard bracket.

In one embodiment, the at least one suspended metal body further includes a third suspended metal body, and the electronic device further includes a middle frame structure, the third suspended metal body being connected to the middle frame structure.

The implementation manner and the beneficial effects of the electronic device are similar to those of the antenna described in the first aspect, and are not described herein again.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a handset in one embodiment;

FIG. 2 is a diagram illustrating a split structure of a handset in one embodiment;

fig. 3 is a schematic diagram of an antenna in the prior art;

FIG. 4 is a schematic diagram of an antenna according to an embodiment of the present application;

FIG. 5 is a schematic view of the positional relationship between at least one suspended metal body and an insulating material according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an antenna according to another embodiment of the present application;

FIG. 7 is a schematic illustration of a positional relationship of a first suspended metal body and a second suspended metal body in an embodiment of the present application;

FIG. 8 is a schematic representation of S-parameters for a prior art antenna, using the antenna of FIG. 4, and using the antenna of FIG. 6 in one embodiment of the present application;

fig. 9 is a schematic structural diagram of an antenna according to another embodiment of the present application;

fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described in detail and clearly with reference to the accompanying drawings. In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" in the text is only an association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: three cases of a alone, a and B both, and B alone exist, and in addition, "a plurality" means two or more than two in the description of the embodiments of the present application.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of embodiments of the application, unless stated otherwise, "plurality" means two or more.

At present, with the trend of miniaturization of electronic equipment, the volume of electronic devices on the electronic equipment is also reduced. On the one hand, the antenna is an important electronic device for electronic equipment, and the volume of the antenna is small. The smaller the volume of the antenna, the smaller the equivalent radiation aperture of the antenna, which may result in the performance degradation of the antenna. On the other hand, the volume of other devices (e.g., media affecting the impedance matching of the antenna) on the electronic device that affect the performance of the antenna also decreases with the miniaturization trend of the electronic device, further resulting in the performance degradation of the antenna.

In the embodiment of the present application, the mobile phone 200 is taken as the above-mentioned electronic device for example, the mobile phone 200 provided in the embodiment of the present application may be a curved-screen mobile phone or a flat-screen mobile phone, and in the embodiment of the present application, a flat-screen mobile phone is taken as an example for description. Fig. 1 and fig. 2 respectively show an overall structure and a split structure of a mobile phone 200, a display screen 21 of the mobile phone 200 provided in the embodiment of the present application may be a water drop screen, a bang screen, a full screen, or a hole digging screen (see fig. 1), for example, an opening 211 is formed in the display screen 21, and the following description takes the hole digging screen as an example for description.

Referring to fig. 2, a handset 200 may include: the display device comprises a display screen 21, a middle frame 22, a rear shell 25 and a battery 24 positioned between the middle frame 22 and the rear shell 25, wherein the battery 24 can be arranged on the side of the middle frame 22 facing the rear shell 25 (as shown in fig. 2), or the battery 24 can be arranged on the side of the middle frame 22 facing the display screen 21, for example, the side of the middle frame 22 facing the rear shell 25 can be provided with a battery compartment (not shown), and the battery 24 is arranged in the battery compartment. In some other examples, the mobile phone 200 may further include a circuit board 23, wherein the circuit board 23 may be disposed on the middle frame 22, for example, the circuit board 23 may be disposed on a side of the middle frame 22 facing the rear case 25 (as shown in fig. 2), or the circuit board 23 may be disposed on a side of the middle frame 22 facing the display screen 21, and the display screen 21 and the rear case 25 are respectively located on two sides of the middle frame 22.

Referring to fig. 2, the top frame 2221 and the bottom frame 2222 are disposed opposite to each other, the left frame 2223 and the right frame 2224 are disposed opposite to each other, the top frame 2221 is connected to one end of the left frame 2223 and one end of the right frame 2224 by a rounded corner, and the bottom frame 2222 is connected to the other end of the left frame 2223 and the other end of the right frame 2224 by a rounded corner, so as to form a rounded rectangular area. The rear housing is grounded and disposed in the rounded rectangular area, and is connected to the top frame 2221, the bottom frame 2222, the left frame 2223, and the right frame 2224, respectively. It will be appreciated that the rear housing ground plane may be the rear housing 25 of the handset 200.

The rear housing 25 may be a metal rear housing, a glass rear housing, a plastic rear housing, or a ceramic rear housing, and in the embodiment of the present application, the material of the rear housing 25 is not limited, and is not limited to the above example.

It should be noted that, in some examples, the rear case 25 of the mobile phone 200 may be connected to the bezel 222 to form an integrally formed (Unibody) rear case, for example, the mobile phone 200 may include: display 21, metal middle plate 221 and a rear case, which may be a rear case formed by integrally molding (Unibody) bezel 222 and rear case 25, such that circuit board 23 and battery 24 are located in a space surrounded by metal middle plate 221 and the rear case.

In order to increase the equivalent radiation aperture of the antenna on the mobile phone and improve the performance of the antenna, as shown in fig. 3, a parasitic branch 100B is usually added on one side of the main radiation branch 100A of the antenna. The electromagnetic wave signal on the main radiating branch 100A is coupled to the parasitic branch 100B through the gap 100C between the main radiating branch 100A and the parasitic branch 100B. Correspondingly, the electromagnetic wave signal on the parasitic branch 100B is coupled to the main radiating branch 100A through the gap 100C between the main radiating branch 100A and the parasitic branch 100B. Compared with the antenna using the main radiation branch 100A and the parasitic branch 100B alone, the antenna using the main radiation branch 100A and the parasitic branch 100B increases the volume of the radiation branch of the antenna, that is, increases the equivalent radiation aperture of the antenna, and improves the performance of the antenna.

However, since the main radiating branch 100A and the parasitic branch 100B have small volumes, the area of the cross section for coupling the electromagnetic wave signal is small. The electromagnetic wave signals that can be coupled to each other between the main radiating branch 100A and the parasitic branch 100B are limited, so that the performance of the antenna cannot be effectively improved by using the conventional method.

In view of this, the present application provides an antenna, which can effectively enhance the coupled electromagnetic wave signal between the main radiation branch and the parasitic branch, thereby effectively increasing the equivalent radiation aperture of the antenna and improving the performance of the antenna.

This will be described in detail below with reference to the embodiments shown in fig. 4 to 9.

Fig. 4 is a schematic structural diagram of an antenna in an embodiment of the present application, and as shown in fig. 4, an embodiment of the present application provides an antenna 1000, which includes a main radiating branch 1100, a parasitic branch 1200, a feeding point 1300, and at least one floating metal body 1400, where the main radiating branch 1100 and the parasitic branch 1200 couple signals through a slot, the at least one floating metal body 1400 couples and connects the main radiating branch 1100 and the parasitic branch 1200, the main radiating branch 1100 connects the feeding point 1300, and the main radiating branch 1100 and the parasitic branch 1200 couple signals through the at least one floating metal body 1400.

Fig. 4 (a) is a front view of the antenna in the embodiment of the present application, fig. 4 (b) is a top view of the antenna in the embodiment of the present application, and fig. 4 (c) is a right side view in the embodiment of the present application.

It should be understood that main radiating branch 1100 and parasitic branch 1200 are adjacent and unconnected, that is, there is a distance between main radiating branch 1100 and parasitic branch 1200. It should be noted that the distance between the main radiating branch 1100 and the parasitic branch 1200 is usually small, that is, a gap exists between the main radiating branch 1100 and the parasitic branch 1200, and electromagnetic wave signals are coupled between the main radiating branch 1100 and the parasitic branch 1200 through the gap.

The main radiating branch 1100 may be connected to the feeding point 1300 at a side close to the parasitic branch 1200, or may be connected to the feeding point 1300 at a side far from the parasitic branch 1200, which is not limited in this embodiment of the application.

In one possible case, the parasitic stub 1200 may be connected to an adjustment device (not shown), which may be used to adjust the impedance of the parasitic stub 1200, so that the parasitic stub 1200 can operate well in the operating frequency band of the antenna. For example, the adjusting device may be a metal structure, or may be a capacitor, which is not limited in this embodiment of the application. The adjusting device may be disposed on a side of the parasitic branch 1200 away from the main radiating branch 1100, or may be disposed on a side of the parasitic branch 1200 close to the main radiating branch 1100, which is not limited in this embodiment of the present application.

At least one of the suspended metal bodies 1400 may be a metal body that is not connected to the main radiating branch 1100 and the parasitic branch 1200 and is not grounded. Generally, an insulating material 2000 (e.g., an insulating paste) may be disposed on one side of the main radiating branch 1100 and the parasitic branch 1200, and at least one floating metal body 1400 may be disposed on the insulating material 2000, as shown in fig. 5, where (a) in fig. 5 is a front view of the at least one floating metal body 1400 and the insulating material 2000, and (b) in fig. 5 is a side view of the at least one floating metal body 1400 and the insulating material 2000. Thus, at least one floating metal body 1400 is neither connected to the main radiating branch 1100 or the parasitic branch 1200, nor grounded, which is equivalent to at least one floating metal body 1400 floating on one side of the main radiating branch 1100 or the parasitic branch 1200.

The number of the at least one floating metal body 1400 may be 1, 2, 3 or more, which is not limited by the embodiment of the present application. The at least one floating metal body 1400 may be a rectangular metal body, or an L-shaped floating metal body, which is not limited in this application.

The following description will be made on the principle of how the at least one suspended metal body 1400 couples signals with the main radiating branch 1100 and the parasitic branch 1200, and the position relationship between the at least one suspended metal body 1400 and the main radiating branch 1100 and the parasitic branch 1200, taking the number of the at least one suspended metal body 1400 as 1 as an example.

The radiating branches of the antenna are typically rectangular microstrip lines, that is, the main radiating branch 1100 and the parasitic branch 1200 are cuboids. At least one suspended metal body 1400 may be provided on the side along the long sides of the main radiating branch 1100 and the parasitic branch 1200. It should be understood that there are 4 sides along the long side of main radiating branch 1100 and parasitic branch 1200, above, below, to the left and to the right of main radiating branch 1100 and parasitic branch 1200, respectively, as shown in fig. 4. The at least one floating metal body 1400 may be disposed on either side, which is not limited in this application.

It should be noted that the length of the at least one floating metal body 1400 is generally long, so that the orthographic projection of the at least one floating metal body 1400 can have an overlapping region with both the main radiating branch 1100 and the parasitic branch 1200. That is, the length of at least one floating metal body 1400 is greater than the length of the gap between the main radiating branch 1100 and the parasitic branch 1200, so that the orthographic projection of at least one floating metal body 1400 has an overlapping region of both the main radiating branch 1100 and the parasitic branch 1200.

It should be understood that in the case where the orthographic projection main radiation branch 1100 and the parasitic branch 1200 of the at least one suspended metal body 1400 both have an overlapping region, the at least one suspended metal body 1400 may couple the electromagnetic wave signal from the main radiation branch 1100 through the portion overlapping the main radiation branch 1100 and couple the coupled electromagnetic wave signal to the parasitic branch 1200 through the portion overlapping the parasitic branch 1200. Accordingly, at least one floating metal body 1400 may couple an electromagnetic wave signal from the parasitic stub 1200 through the portion overlapping the parasitic stub 1200 and couple the coupled electromagnetic wave signal to the main radiating stub 1100 through the portion overlapping the main radiating stub 1100. That is, main radiating branch 1100 and parasitic branch 1200 couple signals through at least one suspended metal 1400. This is equivalent to increasing the signal coupled from the main radiating branch 1100 by the parasitic branch 1200, is equivalent to increasing the volume of the radiating branch of the antenna 1000, and is also equivalent to increasing the equivalent radiating aperture of the antenna 1000, thereby improving the performance of the antenna 1000.

In one possible case, the at least one floating metal body may be two floating metal bodies, and exemplarily, the at least one floating metal body may include a first floating metal body and a second floating metal body, which will be described in detail below by way of an embodiment shown in fig. 6.

Fig. 6 is a schematic structural diagram of an antenna provided in another embodiment of the present application, where the antenna 1000 is applied to an electronic device 100, as shown in fig. 6, the antenna 1000 includes a main radiating branch 1100, a parasitic branch 1200, a feeding point 1300, a first suspended metal body 1410 and a second suspended metal body 1420, and the main radiating branch 1100 and the parasitic branch 1200 couple signals through a slot; at least one suspended metal body 1400 is coupled with the main radiating branch 1100 and the parasitic branch 1200, the main radiating branch 1100 is connected with the feeding point 1300, the first suspended metal body 1410 is connected with the shell of the electronic device, the second suspended metal body 1420 is connected with the main board bracket of the electronic device, and the main radiating branch 1100 and the parasitic branch 1200 are coupled with signals through the first suspended metal body 1410 and the second suspended metal body 1420.

Fig. 6 (a) is a front view of the antenna in the embodiment of the present application, fig. 6 (b) is a top view of the antenna in the embodiment of the present application, and fig. 6 (c) is a right side view in the embodiment of the present application.

It should be understood that electronic devices typically include a housing and a motherboard bracket. The housing may be a rear case 25 as shown in fig. 2, and may be used to form a sealed space to prevent the electronic devices in the electronic device from being damaged by the collision of external objects. For example, the housing may form a closed space with the display panel of the mobile phone to prevent the electronic devices in the mobile phone from being damaged by collision of an external object. Or, the electronic device is a notebook computer, and an independent closed space can be formed in the shell of the notebook computer, so that the electronic device in the notebook computer is prevented from being damaged by collision of an external object.

The volume of the motherboard in the electronic device is usually large, and in order to fix the motherboard, a motherboard bracket for supporting and fixing the motherboard is usually disposed in the electronic device.

It is understood that the at least one floating metal body 1400 may be two floating metal bodies, a first floating metal body 1400 and a second floating metal body 1420, respectively. The first floating metal body 1410 may be connected to a housing of the electronic device, and the second floating metal body 1420 may be connected to a motherboard bracket of the electronic device.

Optionally, the first suspended metal body 1410 is a copper sheet, and the second suspended metal body 1420 is a suspended metal body formed by Laser-Direct-structuring (LDS).

It should be understood that the copper sheet, which is a common metal material, is usually cut into a shape required by a user and fixed near an existing microstrip line for changing the shape of the microstrip line. In the embodiment of the application, the copper sheet may be cut into a suitable shape, and the copper sheet obtained after cutting is fixed on the housing of the electronic device, so as to obtain the first suspended metal body 1410.

Illustratively, a copper sheet as the first floating metal body 1410 is attached to the housing of the electronic device.

The LDS controls the movement of laser according to the track of the conductive pattern by using a computer, projects the laser onto the three-dimensional plastic device formed by molding, and plates and forms a metal body on the three-dimensional plastic device. The second suspended metal body 1420 may be a metal body plated on the three-dimensional plastic device using LDS.

Illustratively, the second suspended metal body 1420 is a metal body plated on a motherboard bracket of the electronic device through a facade LDS.

In the embodiment of this application, first suspension metal body is the copper sheet, and the second suspension metal body is the suspension metal body that forms through LDS, and first suspension metal body is a common metal material promptly, and the second suspension metal body is the metal body that forms through current ripe technique for the process of obtaining first suspension metal body and second suspension metal body is comparatively simple and convenient, has reduced the degree of difficulty of obtaining first suspension metal body and second suspension metal body.

Optionally, the first suspended metal body 1410 is a rectangular metal body.

The first floating metal body 1410 is supported and fixed by a case of the electronic device. Therefore, the more the shape of the first floating metal body 1410 matches the shape of the housing of the electronic device, the more firmly the first floating metal body 1410 can be fixed to the housing of the electronic device. Taking the first suspension metal body 1410 as a copper sheet for illustration, when the copper sheet is fixed by the housing, the copper sheet is usually cut into a shape matching with the housing, and for example, the copper sheet can be cut into a rectangle and fixed on the side of the housing.

In the embodiment of the application, first suspension metal body is the rectangle metal body, that is to say, first suspension metal body can obtain through simple processing, has improved the convenience of obtaining first suspension metal body. Further, because the first suspended metal body can be fixed through the shell of the electronic device, under the condition that the first suspended metal body is a rectangular metal body, the shape of the first suspended metal body can be matched with the shell of the electronic device, so that the first suspended metal body can be fixed on the shell of the electronic device more firmly, and the reliability of the first suspended metal body is improved.

Alternatively, the shape of the second floating metal body 1420 is determined according to the shape of the main board bracket. In one possible case, the three-dimensional plastic device may be a main board support, that is, the second floating metal body 1420 is plated on the main board support, and the shape corresponding to the second floating metal body 1420 is determined according to the shape of the main board support.

In the embodiment of the application, the shape of the second suspended metal body is determined according to the shape of the main board support, that is, in the process of obtaining the second suspended metal body, the second suspended metal body does not need to be opened independently, the existing main board support is directly plated by the LDS to obtain the second suspended metal body, the difficulty of obtaining the second suspended metal body is reduced, and the cost of obtaining the second suspended metal body is also reduced.

Optionally, the second suspended metal body 1420 is an L-shaped suspended metal body.

In one possible case, the shape of the main plate bracket is L-shaped, and correspondingly, the second floating metal body 1420 is an L-shaped metal body.

In the embodiment of this application, the second suspension metal body is L type metal body, and under the condition that mainboard support's shape was the L type, the shape of second suspension metal body and mainboard support's shape were the shape of matcing, consequently makes the second suspension metal body can fix on mainboard support more firmly, has improved the reliability of second suspension metal body.

Optionally, the second suspended metal body 1420 includes a first plane 1421, the first plane 1421 is parallel to a second plane 1101, and the second plane 1101 is a plane on which an orthogonal projection of the second suspended metal body 1420 on the main radiation branch 1100 and the parasitic branch 1200 is located.

Illustratively, the second floating metal body 1420 is an L-shaped metal body, and the second floating metal body 1420 includes two planes, and an included angle between the two planes is 90 °. The first plane 1421 is a plane having a larger projection area of the two planes on the main radiating branch 1100 and the parasitic branch 1200. That is, the first plane 1421 is parallel to a second plane, which is a plane where the orthographic projection of the second suspended metal body 1420 on the main radiating branch 1100 and the parasitic branch 1200 is located.

In one possible case, as shown in fig. 7, the first floating metal body 1410 is parallel to the second floating metal body 1420.

In the case where the second floating metal body 1420 is an L-shaped metal body, optionally, as shown in (c) of fig. 6, an angle between the first floating metal body 1410 and the first plane 1421 is 90 °. The coupling paths between the first suspended metal body 1410, the second suspended metal body 1420, the main radiating branch 1100 and the parasitic branch 1200 are shown by the arrow directions shown in fig. 6 (c). The first suspended metal body 1410 is coupled with the main radiation branch 1100 and the parasitic branch 1200; the second suspended metal body 1420 couples signals with the main radiating branch 1100 and the parasitic branch 1200; a signal is coupled between the first suspended metal body 1410 and the second suspended metal body 1420.

The effect of having at least one suspended metal body as two suspended metal bodies is explained in detail below with reference to fig. 8.

As shown in fig. 8, the return loss S11 for the antenna using the main radiating stub and the parasitic stub is-10 dB at 1.78 GHz. An antenna employing a main radiating branch, a parasitic branch, and a suspended metal body (i.e., the topped suspended branch shown in fig. 8), wherein the main radiating branch and the parasitic branch couple signals via the suspended metal body, has a return loss S11 of-20 dB around 1.78 GHz. An antenna employing a main radiating branch, a parasitic branch, and two suspended metals (i.e., both suspended branches are added as shown in fig. 8), wherein the main radiating branch and the parasitic branch couple signals through the two suspended metals, and the return loss S11 of the antenna is-21 dB near 1.78 GHz.

As can be seen from fig. 8, the antenna using the main radiating branch, the parasitic branch and one floating metal body, in which the main radiating branch and the parasitic branch couple signals through one floating metal body, and the antenna using the main radiating branch, the parasitic branch and two floating metal bodies, in which the main radiating branch and the parasitic branch couple signals through two floating metal bodies, have significantly improved return loss S11 compared to the antenna using only the main radiating branch and the parasitic branch.

Furthermore, the antenna adopting the main radiation branch, the parasitic branch and the at least one suspended metal body can improve the efficiency of the antenna. Illustratively, as shown in table 1, the antenna 1 is an antenna using only a main radiating branch and a parasitic branch, the antenna 2 is an antenna using a main radiating branch, a parasitic branch and one suspended metal, and the antenna 3 is an antenna using a main radiating branch, a parasitic branch and two suspended metals. It can be seen that the efficiency of antennas 2 and 3 is significantly improved compared to antenna 1.

TABLE 1

	Antenna 1	Antenna 2	Antenna 3
				Channel 1	13.5％	14.1％	17.4％
Channel
	2	12.3％	14.5％	18.2％
Average					13.2％	14.5％	17.8％

In a possible case, the performance of the antenna can be further improved by using a floating metal body that reinforces the middle frame structure of the electronic device, which is described in detail below with reference to fig. 9.

Fig. 9 is a schematic structural diagram of an antenna provided in another embodiment of the present application, where the antenna 1000 is applied to an electronic device, as shown in fig. 9, the antenna 1000 includes a main radiating branch 1100, a parasitic branch 1200, a feeding point 1300, a first suspended metal body 1410, a second suspended metal body 1420, and a third suspended metal body 1430, and the main radiating branch 1100 and the parasitic branch 1200 couple signals through a slot; the first suspended metal body 1410, the second suspended metal body 1420 and the third suspended metal body 1430 are coupled with the main radiating branch 1100 and the parasitic branch 1200; the main radiating branch 1100 and the parasitic branch 1200 couple signals through the first suspended metal 1410, the second suspended metal 1420 and the third suspended metal 1430, and the main radiating branch 1100 is connected to the feeding point 1300. The first floating metal body 1410 is connected to a housing of the electronic device, and the second floating metal body 1420 is connected to a main board bracket of the electronic device. The third floating metal body 1430 is connected to a middle frame structure of the electronic device.

Compared to the embodiment shown in fig. 6, the antenna shown in fig. 9 further adds a third floating metal body 1430 as the floating metal body for coupling the signal between the main radiating branch 1410 and the parasitic branch 1420. Wherein, the third floating metal body 1430 is connected with the middle frame structure of the electronic device.

It should be understood that the antenna 1000 is typically disposed on a mid-frame structure of an electronic device, which may be referred to as the mid-frame 22 shown in fig. 2. The antenna 1000 used in the present application includes a main radiating branch 1100 and a parasitic branch 1200, and a gap exists between the main radiating branch 1100 and the parasitic branch 1200. That is, there is a gap in the position of the antenna 1000 on the middle frame structure, and a metal body is usually disposed on the position of the middle frame structure to reinforce the middle frame structure. In an embodiment of the present application, a metal body for reinforcing the middle frame structure may be used as the third floating metal body 1430.

It should be noted that the metal body for reinforcing the middle frame structure may be a metal body newly added after the middle frame structure is processed, or may be processed together with the middle frame structure. Alternatively, the third floating metal body 1430 and the middle frame structure are formed integrally.

The coupling signal of parasitic branch from main radiation branch can be strengthened, the volume of the radiation branch of antenna has also been equivalently improved, the equivalent radiation bore of antenna has also been equivalently improved, compare with the equivalent radiation bore that only adopts parasitic branch to increase antenna, adopt the antenna that this application embodiment provided, the performance of antenna can be promoted effectively.

The application also provides electronic equipment which comprises the antenna provided by the embodiment.

In one example, the electronic device further includes a housing and a motherboard bracket, the antenna includes a main radiating stub, a parasitic stub, a feed point, a first suspended metal body, and a second suspended metal body, the first suspended metal body is connected with the housing, and the second suspended metal body is connected with the motherboard bracket.

In one example, the electronic device further includes a housing, a motherboard bracket, and a bezel structure, the antenna includes a main radiating stub, a parasitic stub, a feed point, a first suspended metal body, a second suspended metal body, and a third suspended metal body, the first suspended metal body is connected to the housing, the second suspended metal body is connected to the motherboard bracket, and the third suspended metal body is connected to the bezel structure.

The embodiment of the present application does not limit the type of the electronic device. Illustratively, the electronic device may be, but is not limited to, a mobile phone, a tablet computer, a smart speaker, a smart large screen (also referred to as a smart television), or a wearable device, etc.

For example, fig. 10 shows a schematic structural diagram of the electronic device 100. The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identification Module (SIM) card interface 195, and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

It is to be understood that the illustrated structure of the embodiment of the present application does not specifically limit the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a memory, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

It should be understood that the connection relationship between the modules illustrated in the embodiment of the present application is only an exemplary illustration, and does not limit the structure of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide a solution for wireless communication applied to the electronic device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, antenna 1 of electronic device 100 is coupled to mobile communication module 150 and antenna 2 is coupled to wireless communication module 160 so that electronic device 100 can communicate with networks and other devices through wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), fifth Generation wireless communication systems (5G, the 5th Generation of wireless communication systems), BT, GNSS, WLAN, NFC, FM, and/or IR technology, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou satellite navigation system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

It should be noted that any of the electronic devices mentioned in the embodiments of the present application may include more or less modules in the electronic device 100.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment. It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance. Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise.

Finally, it should be noted that: the above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An antenna is characterized by comprising a main radiation branch, a parasitic branch, a feed point and at least one suspended metal body; the main radiation branch and the parasitic branch are coupled with signals through gaps; the at least one suspended metal body is coupled with the main radiation branch and the parasitic branch; the main radiation branch and the parasitic branch couple signals through the at least one suspended metal body, and the main radiation branch is connected with the feed point.

2. The antenna according to claim 1, wherein the antenna is applied to an electronic device, the at least one floating metal body comprises a first floating metal body and a second floating metal body, the first floating metal body is connected with a housing of the electronic device, and the second floating metal body is connected with a main board support of the electronic device.

3. The antenna of claim 2, wherein the first suspended metal body is a copper sheet and is a rectangular metal body; the second suspended metal body is a metal body formed by a laser direct structuring technique LDS.

4. The antenna according to claim 2 or 3, wherein the shape of the second floating metal body is determined according to the shape of the main board bracket, and the second floating metal body is an L-shaped metal body.

5. The antenna of claim 2 or 3, wherein the second suspended metal body comprises a first plane, the first plane is parallel to a second plane, and the second plane is a plane on which an orthographic projection of the second suspended metal body on the main radiating stub and the parasitic stub is located.

6. The antenna of claim 5, wherein the angle between the first suspended metal body and the first plane is 90 °.

7. The antenna of claim 2 or 3, wherein the at least one suspended metal body further comprises a third suspended metal body, the third suspended metal body being connected to a middle frame structure of the electronic device; the third suspended metal body and the middle frame structure are obtained by an integral forming method.

8. An electronic device, characterized in that the electronic device comprises an antenna according to any of claims 1-7.

9. The electronic device of claim 8, wherein the antenna comprises at least one suspended metal body, wherein the at least one suspended metal body comprises a first suspended metal body and a second suspended metal body, wherein the electronic device further comprises a housing and a motherboard bracket, wherein the first suspended metal body is connected to the housing, and wherein the second suspended metal body is connected to the motherboard bracket.

10. The electronic device of claim 9, wherein the at least one suspended metal body further comprises a third suspended metal body, the electronic device further comprising a middle frame structure, the third suspended metal body being connected to the middle frame structure.