WO2025021055A1 - Electronic device - Google Patents

Abstract

An electronic device, belonging to the technical field of antennas. The electronic device comprises: a metal frame, a camera module, a first antenna, a second antenna and a third antenna; the camera module is located on the inner side of the metal frame, and the camera module comprises a metal decorative ring, the metal decorative ring being grounded; the metal frame comprises a first frame side, a second frame side and a third frame side which are successively contiguous with each other, the first frame side and the third frame side being arranged opposite to each other, and the camera module being located in a region defined by the first frame side and the second frame side; the first antenna comprises a first radiation branch provided on the first frame side; the second antenna comprises a second radiation branch provided on the second frame side; the third antenna comprises a third radiation branch provided on the second frame side, and a fourth radiation branch provided on the third frame side; a gap is formed between the first radiation branch and the metal decorative ring, the first radiation branch being coupled to the metal decorative ring; by means of the metal decorative ring, the energy of the first antenna can be transferred to a region where the third antenna is located.

Description

Electronic devices

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application 202310921981.2, filed on July 26, 2023, entitled “Electronic Device”, the entire contents of which are incorporated herein by reference.

Technical Field

The present application belongs to the field of antenna technology, and specifically relates to an electronic device.

Background Art

At present, in order to improve the coverage characteristics of antenna patterns on electronic devices such as mobile phones, the method of coupling multiple antenna structures is usually used to make the energy of the antennas as evenly distributed as possible in the symmetrical structure area, thereby achieving the purpose of improving the spatial coverage of the antenna pattern. However, with the increasing number of antennas integrated on electronic devices such as mobile phones, and due to the limitations of the grounding positions and feed point positions of different antennas, it is difficult for the energy of the antennas to be coupled and distributed in the symmetrical structure area, which in turn affects the coverage characteristics of the antenna pattern, resulting in some blind areas for signal transmission and reception in space, affecting the signal quality.

Summary of the invention

The present application aims to provide an electronic device capable of solving the problem of poor directional pattern coverage characteristics existing in the antenna structure in the related art.

The embodiment of the present application provides an electronic device, comprising: a metal frame, a camera module, a first antenna, a second antenna and a third antenna, wherein the camera module is located inside the metal frame, and the camera module comprises a metal decorative ring, and the metal decorative ring is grounded;

The metal frame includes a first frame, a second frame and a third frame which are adjacent to each other in sequence, the first frame and the third frame are arranged opposite to each other, and the camera module is located in an area enclosed by the first frame and the second frame;

The first antenna includes a first radiating branch disposed on the first frame, and the first radiating branch is located at an end of the first frame close to the second frame;

The second antenna includes a second radiating branch disposed on the second frame, and the second radiating branch is located at an end of the second frame close to the first frame;

The third antenna includes a third radiating branch disposed on the second frame and a fourth radiating branch disposed on the third frame. The third radiating branch is located at an end of the second frame close to the third frame. The fourth radiation branch is located at an end of the third frame close to the second frame;

Among them, a first break is set between the first radiation branch and the second radiation branch, a second break is set between the third radiation branch and the fourth radiation branch, there is a gap between the first radiation branch and the metal decorative ring, and the first radiation branch and the metal decorative ring are coupled and connected, and the energy of the first antenna can be transmitted to the area where the third antenna is located through the metal decorative ring.

In an embodiment of the present application, by coupling the first radiating branch with a grounded metal decorative ring, the first antenna can also couple energy in the area where the metal decorative ring is located and provide an energy transmission channel, and the metal decorative ring can be used to couple the energy excited by the first radiating branch to the other side of the electronic device, that is, the energy excited by the first radiating branch can be coupled to the side where the third antenna is located, so as to improve the spatial coverage of the radiation pattern of the first antenna, thereby achieving the purpose of significantly reducing the spatial signal blind spot that exists when the antenna is working.

Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

FIG1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

FIG2 is a schematic diagram of a curve showing how the directivity of a first antenna varies with frequency according to an embodiment of the present application;

FIG3 is a schematic diagram of a directivity CDF curve of a first antenna provided in an embodiment of the present application;

FIG. 4 is a second schematic diagram of a directional CDF curve of the first antenna provided in an embodiment of the present application.

DETAILED DESCRIPTION

The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the objects connected before and after are in an "or" relationship.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or through an intermediate medium. Indirect connection may be internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

See Figure 1, which is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. As shown in Figure 1, the electronic device provided in an embodiment of the present application includes: a metal frame 10, a camera module 20, a first antenna, a second antenna and a third antenna, the camera module 20 is located on the inner side of the metal frame 10, and the camera module 20 includes a metal decorative ring 21, and the metal decorative ring 21 is grounded;

The metal frame 10 includes a first frame 11, a second frame 12 and a third frame 13 which are adjacent to each other in sequence. The first frame 11 and the third frame 13 are arranged opposite to each other, and the camera module 20 is located in the area enclosed by the first frame 11 and the second frame 12.

The first antenna includes a first radiating branch 111 disposed on the first frame 11, and the first radiating branch 111 is located at an end of the first frame 11 close to the second frame 12;

The second antenna includes a second radiating branch 121 disposed on the second frame 12, and the second radiating branch 121 is located at an end of the second frame 12 close to the first frame 11;

The third antenna includes a third radiating branch 123 disposed on the second frame 12 and a fourth radiating branch 131 disposed on the third frame 13. The third radiating branch 123 is located at one end of the second frame 12 close to the third frame 13, and the fourth radiating branch 131 is located at one end of the third frame 13 close to the second frame 12.

Among them, a first break 14 is arranged between the first radiation branch 111 and the second radiation branch 121, a second break 15 is arranged between the third radiation branch 123 and the fourth radiation branch 131, there is a gap between the first radiation branch 111 and the metal decorative ring 21, and the first radiation branch 111 and the metal decorative ring 21 are coupled and connected, and the energy of the first antenna can be transmitted to the area where the third antenna is located through the metal decorative ring 21.

The above-mentioned metal frame 10 can be understood as the frame structure of the electronic device. For rectangular electronic devices such as mobile phones, the metal frame 10 may include a first long frame, a first short frame, a second long frame and a second short frame connected end to end in sequence. The first long frame and the second long frame can be understood as two relatively set frame structures of the electronic device, the first short frame and the second short frame can be understood as two relatively set frame structures of the electronic device, and the two short frames can also be understood as the top frame and the bottom frame of the electronic device.

Among them, the first long frame, the first short frame, the second long frame and the second short frame connected end to end in sequence can be understood as: the second end of the first long frame is connected to the first end of the first short frame, the second end of the first short frame is connected to the first end of the second long frame, the second end of the second long frame is connected to the first end of the second end frame, and the second end of the second short frame is connected to the first end of the first long frame.

In some embodiments, the electronic device may further include a metal middle frame, which may include an inner frame and an outer frame, and the outer frame may be connected to the inner frame via structures such as connecting ribs; wherein the above-mentioned metal frame 10 may be understood as an outer frame of the metal middle frame.

The first antenna can be understood as an antenna structure disposed on the first frame 11, and the radiator of the first antenna is a first radiating branch 111 disposed on the first frame 11; in addition, the first antenna can also include a first radiating branch 111 disposed on the first frame 11. The first feed source 31 is electrically connected to the first antenna 111, and the feeding signal output by the first feed source 31 can excite the first radiation branch 111 to put the first antenna in a working state.

The above-mentioned second antenna can be understood as an antenna structure arranged on the second frame 12, and the radiator of the second antenna is a second radiating branch 121 arranged on the second frame 12; in addition, the second antenna can also include a second feed source 32 electrically connected to the second radiating branch 121, and the feeding signal output by the second feed source 32 can excite the second radiating branch 121 to put the second antenna in a working state.

The above-mentioned third antenna can be understood as an antenna structure arranged on the second frame 12 and the third frame 13, and the radiator of the third antenna includes a third radiating branch 123 arranged on the second frame 12 and a fourth radiating branch 131 arranged on the third frame 13; in addition, the third antenna can also include a third feed source 33 electrically connected to the third radiating branch 123, and the third radiating branch 123 can be coupled with the fourth radiating branch 131 through the second slit 15, and the feed signal output by the third feed source 33 can excite the third radiating branch 123 and the fourth radiating branch 131 to put the third antenna in a working state.

The metal decorative ring 21 is grounded, which can be understood as the metal decorative ring 21 being electrically connected to the ground structure of the electronic device. For example, the metal decorative ring 21 can be electrically connected to the ground structure on the mainboard of the electronic device through a conductive structure such as foam, metal spring or conductive cloth, so as to achieve grounding of the metal decorative ring 21.

The camera module 20 is located inside the metal frame 10, which can be understood as the camera module 20 being located within the space area enclosed by the metal frame 10. When the electronic device is a mobile phone, the camera module 20 can be a rear camera module of the electronic device.

In this way, by coupling the first radiation branch 111 with the grounded metal decorative ring 21, the first antenna can also couple energy in the area where the metal decorative ring 21 is located and provide an energy transmission channel, and the metal decorative ring 21 can be used to couple the energy excited by the first radiation branch 111 to the other side of the electronic device, that is, the energy excited by the first radiation branch 111 can be coupled to the side where the third antenna is located, so as to improve the spatial coverage of the radiation pattern of the first antenna, thereby achieving the purpose of greatly reducing the spatial signal blind area when the antenna is working.

In some embodiments, the first frame 11 can be a long frame or a side frame of an electronic device such as a mobile phone, and the first radiation branch 111 can be an end of a short frame or a top frame arranged on the first frame 11 close to the electronic device; in this way, by utilizing the coupling connection between the first radiation branch 111 and the metal decorative ring 21, the energy excited by the first radiation branch 111 can be coupled to the side where the other side frame of the electronic device is located through the metal decorative ring 21, thereby changing the mode current weight and field distribution characteristics of the first antenna, and achieving the purpose of improving the spatial coverage of the radiation pattern of the first antenna.

For example, when the first radiation branch 111 is a radiator arranged in the upper left corner area of the mobile phone, and the metal structure of the top frame of the mobile phone does not resonate in the working frequency band of the first antenna, and it is difficult to couple the energy of the first antenna, the antenna energy can be coupled to the upper right corner area of the mobile phone through the metal decorative ring 21 through the coupling of the first radiation branch 111 and the metal decorative ring 21, so as to improve the spatial coverage of the first antenna radiation pattern.

The first frame 11 can be grounded through the first conductive structure, and the first frame 11 is connected to the first conductive structure. The ground connection point of the structural electrical connection divides the first frame 11 into a first radiation branch 111 and a first frame body 112 .

In some implementations, the first conductive structure may be a conductive structure such as a spring or a connecting rib for electrically connecting the first frame 11 and a grounding structure of the electronic device.

For example, when the first frame 11 is an outer frame of a metal middle frame, the first conductive structure may be a connecting rib for realizing the connection between the outer frame and the inner frame.

It can be understood that the second frame 12 also includes a second frame body 122, the second radiation branch 121 can be set at an end of the second frame body 122 close to the first frame 11, the third radiation branch 123 can be set at an end of the second frame body 122 close to the third frame 13, and the end of the second radiation branch 121 connected to the second frame body 122 is grounded, and the end of the third radiation branch 123 connected to the second frame body 122 is grounded.

Among them, one end of the second radiation branch 121 connected to the second frame body 122 can be grounded through the second conductive structure, and one end of the third radiation branch 123 connected to the second frame body 122 can be grounded through the third conductive structure, that is, the second frame 12 can be divided into the second radiation branch 121, the second frame body 122 and the third radiation branch 123 through the second conductive structure and the third conductive structure.

The second frame 12 is divided into a second radiation branch 121, a second frame body 122 and a third radiation branch 123 by the second conductive structure and the third conductive structure. It can be understood that the ground connection point on the second frame 12 electrically connected to the second conductive structure and the ground connection point on the second frame 12 electrically connected to the third conductive structure divide the second frame into the second radiation branch 121, the second frame body 122 and the third radiation branch 123 in sequence.

In some embodiments, the second radiation branches 121 , the second frame body 122 , and the third radiation branches 123 may be an integrated structure to enhance the structural stability of the second frame 12 .

The second conductive structure and the third conductive structure may be conductive structures such as springs or connecting ribs for electrically connecting the second frame 12 and a grounding structure of the electronic device.

For example, when the second frame 12 is an outer frame of a metal middle frame, the second conductive structure and the third conductive structure may be connecting ribs for realizing the connection between the outer frame and the inner frame.

It is understandable that due to the arrangement of the second conductive structure and the third conductive structure, it is difficult for the energy of the first antenna to be coupled to the side where the third frame 13 is located through the second frame 12. By coupling the first radiation branch 111 with the grounded metal decorative ring 21, the first antenna can also couple energy in the area where the metal decorative ring 21 is located and provide an energy transmission channel, and the metal decorative ring 21 can be used to couple the energy excited by the first radiation branch 111 to the other side of the electronic device, even if the energy excited by the first radiation branch 111 can be coupled to the side where the third antenna is located, so as to improve the spatial coverage of the directional pattern of the first antenna, thereby achieving the purpose of significantly reducing the spatial signal blind area existing when the antenna is working.

Furthermore, by adjusting the grounding method of the metal decorative ring 21, the resonance characteristics and field distribution characteristics of the metal decorative ring 21 can be adjusted, so that the metal decorative ring 21 can change the mode current weight ratio and field distribution characteristics of the first antenna coupled to it, thereby achieving the purpose of improving the spatial coverage of the radiation pattern of the first antenna.

Optionally, the camera module 20 further includes a camera 22, a metal decorative ring 21 and a metal housing of the camera 22. Electrical connection.

In this embodiment, by electrically connecting the metal decorative ring 21 to the metal housing of the camera 22 to adjust the grounding connection mode of the metal decorative ring 21, the spatial coverage effect of the directional pattern of the first antenna can be further improved.

Moreover, by changing the grounding method of the metal decorative ring 21, the resonance characteristics and field distribution characteristics of the metal decorative ring 21 can also be changed, so that the energy coming out of the first radiation branch 111 can be coupled to the metal decorative ring 21. The metal decorative ring 21 can also be used as an energy transmission channel to couple the first radiation branch 111 to the other side of the electronic device, thereby achieving the purpose of improving the spatial coverage of the radiation pattern of the first antenna, and can also greatly enhance the coupling of the middle metal structure of the electronic device.

It should be noted that when the metal decorative ring 21 is electrically connected to the metal shell of the camera 22 , the energy coupling effect of the metal decorative ring 21 is stronger than the energy coupling effect when the metal decorative ring 21 is not electrically connected to the metal shell of the camera 22 .

In the process of adjusting the grounding method of the metal decorative ring 21, not only the number of grounding connection points of the metal decorative ring 21 can be adjusted, but also the position of the grounding connection points of the metal decorative ring 21 can be adjusted; in addition, the grounding number and grounding position of the metal decorative ring 21 can be adjusted based on the size and shape of the metal decorative ring 21, so as to maximize the spatial coverage effect of the radiation pattern of the first antenna.

Optionally, the electronic device further includes a device body 40 , a plurality of grounding points are provided on the metal decorative ring 21 , and the metal decorative ring 21 is electrically connected to a grounding structure of the device body 40 through the plurality of grounding points.

The above-mentioned multiple grounding points can be distributed based on the number of cameras of the camera module 20. For example, when the camera module 20 is provided with two rows of cameras along the length direction of the electronic device, three grounding points can be set on the metal decorative ring 21, and the three grounding points are separated in sequence by the two rows of cameras. That is, by distributing the three grounding points at intervals along the length direction of the electronic device, the purpose of adjusting the resonance characteristics of the metal decorative ring 21 can be achieved.

As shown in FIG. 1 , the three grounding points may be three black triangles on the metal decorative ring 21 separated by two rows of cameras, and are used to realize electrical connection between the metal decorative ring 21 and the grounding structure of the device body 40 .

In some embodiments, the electronic device may further include a conductive steel sheet, which may be disposed between the metal decorative ring 21 and the device body 40, and the metal decorative ring 21 may be electrically connected to the conductive steel sheet through multiple grounding points, and the conductive steel sheet may be electrically connected to the grounding structure of the device body 40 through conductive structures such as conductive springs, locking screws or foam, for example, electrically connected to the grounding structure on the main board of the device body 40.

Among them, the above-mentioned device body 40 can be understood as other structures of the electronic device except for the metal frame 10, the camera module 20 and other structures, and the device body 40 can also include components such as a main board, a shell, and a display screen.

Optionally, the width of the gap between the first radiation branch 111 and the metal decoration ring 21 is less than 0.1λ ₁ , where λ ₁ is a free space wavelength corresponding to the lowest frequency in the working frequency band of the first antenna.

In this embodiment, by setting the width of the gap between the first radiation branch 111 and the metal decoration ring 21 to be less than 0.1λ ₁ , the first radiation branch 111 can be better coupled with the metal decoration ring 21, thereby improving the stability of the radiation effect of the first antenna.

In some implementations, the width of the gap between the first radiation branch 111 and the metal decoration ring 21 may be set to 0.05λ ₁ or 0.04λ ₁ .

Among them, the width of the gap between the first radiation branch 111 and the metal decorative ring 21 includes but is not limited to the above values, and the width of the gap between the first radiation branch 111 and the metal decorative ring 21 can be set based on actual needs and is not specifically limited here.

Optionally, the third frame 13 may be grounded via a fourth conductive structure, and a grounding connection point on the third frame 13 electrically connected to the fourth conductive structure divides the third frame 13 into a fourth radiation branch 131 and a third frame body 132 .

In some implementations, the fourth conductive structure may be a conductive structure such as a spring or a connecting rib for electrically connecting the third frame 13 and a grounding structure of the electronic device.

For example, when the third frame 13 is an outer frame of a metal middle frame, the fourth conductive structure may be a connecting rib for realizing the connection between the outer frame and the inner frame.

The first feed source 31 is connected to the first radiation branch 111 ; the second feed source 32 is connected to the second radiation branch 121 ; the third feed source 33 is connected to the third radiation branch 123 , and the fourth radiation branch 131 is coupled to the fourth radiation branch 131 via the second slit 15 .

As shown in FIG. 1 , the first conductive structure, the second conductive structure, the third conductive structure and the fourth conductive structure may be black block structures located between the metal frame 10 and the device body 40 , and are used to realize the grounding of the corresponding radiation branches.

In some implementations, the first slit 14 and the second slit 15 may be arranged symmetrically with respect to a vertical bisecting plane of the second frame 12 of the electronic device to improve the overall appearance of the electronic device.

The first antenna may be an inverted-F antenna (IFA), which may operate in a WiFi 2.4G frequency band, and the corresponding frequency band range is 2.4GHz-2.5GHz;

The third antenna may be located at the corner of the whole device where the second slit 15 is located. It may be in the form of an IFA+parasitic antenna, and a loading tuning point may be set on its parasitic radiation branch so that the third antenna can operate in the medium, low and high frequency bands. The parasitic radiation branch of the third antenna is the fourth radiation branch 131, and the length of the fourth radiation branch 131 is similar to that of the first radiation branch 111.

The difference between the length of the first radiation branch 111 and the length of the fourth radiation branch 131 is generally no more than ±10%.

A second antenna is also provided on the second frame 12. The second antenna can operate in the Global Positioning System (GPS) frequency band, N78 frequency band, and N79 frequency band, and the second antenna can also be in the form of an IFA antenna.

In some embodiments, the sum of the lengths of the second radiation branch 121, the second frame body 122, and the third radiation branch 123 is greater than 0.5λ ₂ and less than λ ₂ , where λ ₂ is the dielectric wavelength in the electronic device corresponding to the lowest frequency of the working frequency band of the first antenna; the length of the second frame body 122 is less than 0.5λ ₂ , and the length of the second radiation branch 121 is less than 0.5λ 2 . The length dimension of the third radiation branch 123 is greater than 0.25λ ₂ and less than 0.5λ ₂ , and the length dimension of the third radiation branch 123 is less than 0.25λ ₂ .

Among them, the grounding method of the metal decorative ring 21 can be divided into a first grounding method and a second grounding method. The first grounding method means that the metal decorative ring 21 is electrically connected to the grounding structure of the device body 40 through multiple grounding points; the second grounding method means that on the basis of the first grounding method, the metal decorative ring 21 is also electrically connected to the metal casing of the camera 22.

See Figure 2, which is a schematic diagram of a curve showing that the directivity of the first antenna provided in an embodiment of the present application varies with frequency. As shown in Figures 1 and 2, the solid line curve is a directional frequency curve of the first antenna when the metal decorative ring 21 is in the first grounding mode; the dotted line curve is a directional frequency curve of the first antenna when the metal decorative ring 21 is in the second grounding mode. Based on the comparison results of the curves shown in Figure 2, it can be seen that in the WiFi 2.4G frequency band, and when the metal decorative ring 21 is in the second grounding mode, the directivity of the first antenna is improved by 1.6dB-2dB, and has a lower directivity, that is, when the metal decorative ring 21 is in the second grounding mode, the first antenna has better omnidirectionality.

Referring to FIG. 3 and FIG. 4, FIG. 3 is one of the schematic diagrams of the directivity CDF curve of the first antenna provided in the embodiment of the present application; FIG. 4 is the second schematic diagram of the directivity CDF curve of the first antenna provided in the embodiment of the present application. Specifically, the schematic diagram of the directivity CDF curve shown in FIG. 3 is a schematic diagram of the directivity CDF curve of the first antenna working at a frequency of 2.4 GHz; the schematic diagram of the directivity CDF curve shown in FIG. 4 is a schematic diagram of the directivity CDF curve of the first antenna working at a frequency of 2.5 GHz, and as shown in FIG. 3 and FIG. 4, the directivity cumulative distribution function (CDF) curves show that the antenna pattern has the directivity cumulative distribution characteristics at each angle in the entire spherical space, the horizontal axis of the curve is the antenna directivity, the vertical axis is the probability, the vertical axis 0.2 represents a probability of 20%, and the point on the curve means "the probability less than the horizontal axis value is the vertical axis value". The higher the slope of the curve, the more to the right as a whole, indicating that the more uniform the spatial response of the antenna pattern (the more circular the pattern), the better the coverage. Among them, the vertical axis 0.2 corresponds to the value of the horizontal axis, and the larger this value is, the better the coverage of the antenna pattern in the entire spherical space.

In Figures 3 and 4, the solid curve is the directivity CDF curve of the first antenna when the metal decorative ring 21 is in the first grounding mode; the dashed curve is the directivity CDF curve of the first antenna when the metal decorative ring 21 is in the second grounding mode. Based on the curve comparison results shown in Figures 3 and 4, it can be seen that the dashed curves of the first antenna at the two frequency points of 2.4GHz and 2.5GHz are steeper overall, that is, it has better omnidirectionality, and at the 0.2 (20%) probability point, when the metal decorative ring 21 is in the second grounding mode, the first antenna has better directivity, and the overall spatial coverage effect is better, and there are fewer signal blind spots for waves coming from different directions; and compared with the metal decorative ring 21 in the first grounding mode, 2.4GHz is improved by 3.6dB, and 2.5GHz is improved by 2.3dB.

In addition, the electronic device also includes a steel sheet structure located below the metal decorative ring 21, and the steel sheet structure is tightly coupled with the metal decorative ring 21. In this way, the energy coupled and transmitted based on the metal decorative ring 21 also has a strong field energy distribution on the steel sheet structure. That is, in the present application, a large metal component inside the electronic device can be close to the first antenna for coupling and energy transmission, and it is not necessarily limited to one metal component, but multiple metal components can also be coupled and energy transmitted multiple times, so that the energy of the first antenna is distributed as widely and symmetrically as possible on the electronic device, so as to achieve a more circular radiation pattern and better spatial coverage.

It should be noted that the third antenna can be coupled through a flexible printed circuit (FPC) antenna arranged inside the electronic device to achieve the purpose of improving its directivity.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims (10)

An electronic device comprises: a metal frame, a camera module, a first antenna, a second antenna and a third antenna, wherein the camera module is located inside the metal frame, and the camera module comprises a metal decorative ring, and the metal decorative ring is grounded; The metal frame includes a first frame, a second frame and a third frame which are adjacent to each other in sequence, the first frame and the third frame are arranged opposite to each other, and the camera module is located in an area enclosed by the first frame and the second frame; The first antenna includes a first radiating branch disposed on the first frame, and the first radiating branch is located at an end of the first frame close to the second frame; The second antenna includes a second radiating branch disposed on the second frame, and the second radiating branch is located at an end of the second frame close to the first frame; The third antenna includes a third radiating branch disposed on the second frame and a fourth radiating branch disposed on the third frame, the third radiating branch is located at an end of the second frame close to the third frame, and the fourth radiating branch is located at an end of the third frame close to the second frame; Among them, a first break is set between the first radiation branch and the second radiation branch, a second break is set between the third radiation branch and the fourth radiation branch, there is a gap between the first radiation branch and the metal decorative ring, and the first radiation branch and the metal decorative ring are coupled and connected, and the energy of the first antenna can be transmitted to the area where the third antenna is located through the metal decorative ring. The electronic device according to claim 1, wherein the camera module further comprises a camera, and the metal decorative ring is electrically connected to a metal housing of the camera. The electronic device according to claim 2, wherein the electronic device further comprises a device body, a plurality of grounding points are provided on the metal decorative ring, and the metal decorative ring is electrically connected to a grounding structure of the device body through the plurality of grounding points. The electronic device according to claim 3, wherein the electronic device further comprises a conductive steel sheet, wherein the conductive steel sheet is arranged between the metal decorative ring and the device body, the metal decorative ring is electrically connected to the conductive steel sheet through the multiple grounding points, and the conductive steel sheet is electrically connected to the grounding structure of the device body through a conductive spring sheet or a locking screw. The electronic device according to claim 3, wherein the plurality of grounding points are spaced apart along a length direction of the electronic device. The electronic device according to any one of claims 1 to 5, wherein the width of the gap is less than 0.1λ ₁ , where λ ₁ is a free space wavelength corresponding to the lowest frequency of an operating frequency band of the first antenna. The electronic device according to any one of claims 1 to 5, wherein the first antenna comprises a first feed source, the first feed source is electrically connected to the first radiating branch; the second antenna comprises a second feed source, the first feed source is electrically connected to the first radiating branch The second feed source is electrically connected to the second radiation branch; the third antenna includes a third feed source, and the third feed source is electrically connected to the third radiation branch. The electronic device according to claim 7, wherein the second frame is a short frame of the electronic device, and the first frame and the third frame are long frames of the electronic device. The electronic device according to any one of claims 1 to 5, wherein the second frame further comprises a second frame body, the second radiation branch is arranged at an end of the second frame body close to the first frame, and the third radiation branch is arranged at an end of the second frame body close to the third frame; One end of the second radiation branch connected to the second frame body is grounded, and one end of the third radiation branch connected to the second frame body is grounded. The electronic device according to claim 9, wherein the second radiation branch, the second frame body and the third radiation branch are an integrated structure.