WO2024046199A1 - Electronic device - Google Patents

Abstract

An embodiment of the present application provides an electronic device comprising multiple antenna units. The multiple antenna units, by means of different arrangement manners, achieve high isolation under the condition of small spacing to meet MIMO system requirements. The electronic device comprises a first antenna unit, a second antenna unit, a first resonance connector, and a first electronic component. The first antenna unit comprises a first radiating element and a first feed unit, the second antenna unit comprises a second radiating element and a second feed unit, and the first feed unit is different from the second feed unit. A first end of the first resonance connector is electrically connected to the first radiating element, a second end of the first resonance connector is electrically connected to the second radiating element, and the first electronic component is electrically connected between a ground plane and the first resonance connector. The first radiating element and the second radiating element are arranged in parallel and are not collinear, and grounding ends of the first radiating element and the second radiating element are located away from each other.

Description

an electronic device

This application claims priority to the Chinese patent application filed with the China Patent Office on August 29, 2022, with application number 202211040416.7 and application title "An electronic device", the entire content of which is incorporated into this application by reference.

Technical field

The present application relates to the field of wireless communications, and in particular, to an electronic device.

Background technique

With the rapid development of wireless communication technology, in addition to making calls, sending text messages, and taking photos, electronic devices can also be used to listen to music online, watch online movies, real-time videos, etc., covering calls, film and television entertainment, and e-commerce in people's lives. Among various applications, many functional applications require wireless networks to upload and download data. Therefore, high-speed data transmission has become extremely important.

Multiple-input multi-output (MIMO) technology plays a very important role in the fifth generation (5G) wireless communication system. MIMO refers to the use of multiple antennas to send and receive signals in the field of wireless communication. Technology. In a MIMO system, multiple antenna units that can work simultaneously transmit and receive data at the same time period, which can greatly increase data throughput and provide a better rate for data transmission. However, it is still a big challenge for electronic devices, such as mobile phones, to use multiple antennas to transmit and receive signals in increasingly compact layouts to obtain good MIMO performance.

Contents of the invention

Embodiments of the present application provide an electronic device that may include multiple antenna units. The multiple antenna units are arranged in different ways to achieve high isolation at a small spacing to meet the needs of the MIMO system.

In a first aspect, an electronic device is provided, including: a floor; a first antenna unit including a first parasitic branch, a first radiator and a first feeding unit, the first radiator including a first feeding point, The first feeding point of the first feeding unit is coupled to the first radiator; the second antenna unit includes a second radiator and a second feeding unit, and the second radiator includes a second feeding unit. electrical point, the second feeding unit is coupled to the second radiator through the second feeding point, and the first feeding unit is different from the second feeding unit; wherein, the first The first end of the radiator, the first end of the second radiator, and the second end of the first parasitic branch are all coupled to the floor ground; the first end of the first radiator and the The first end of the second radiator is a ground end provided on the same side; the first end of the first radiator and the second end of the first parasitic branch are ground ends provided on opposite sides.

According to the technical solution of the embodiment of the present application, the ground terminal of the first radiator and the ground terminal of the second radiator are arranged on the same side, forming a weak coupling structure. The ground terminal of the first radiator and the ground terminal of the first parasitic branch are arranged on opposite sides to form a strong coupling structure. The first parasitic branch generates resonance through the electrical signal fed by the first radiator to expand the working frequency band of the first antenna unit.

With reference to the first aspect, in some implementations of the first aspect, the first radiator and the second radiator are arranged in series.

In some implementations of the first aspect, the first radiator and the second radiator are disposed collinearly.

In conjunction with the first aspect, in some implementations of the first aspect, the first radiator and the second radiator are juxtaposed.

According to the technical solution of the embodiment of the present application, the first radiator and the second radiator are arranged in parallel and not collinearly.

With reference to the first aspect, in some implementations of the first aspect, the first radiator and the first parasitic branch are juxtaposed.

According to the technical solution of the embodiment of the present application, the first radiator and the first parasitic branch are arranged in parallel and not collinearly.

With reference to the first aspect, in some implementations of the first aspect, the first radiator and the first parasitic branch are arranged in series.

According to the technical solution of the embodiment of the present application, the first radiator and the first parasitic branch are arranged in line.

In conjunction with the first aspect, in some implementations of the first aspect, both the first radiator and the second radiator extend in the first direction, and the second end of the first radiator is an open end. , the second end of the second radiator is an open end, wherein the ground end provided on the same side of the first end of the first radiator and the first end of the second radiator means that the first end of the second radiator is an open end. A first end of a radiator is on a first side in the first direction, a second end of the first radiator is on a second side in the first direction, and a third end of the second radiator is on the first side in the first direction. One end is on the first side in the first direction, and the second end of the second radiator is on the second side in the first direction.

With reference to the first aspect, in some implementations of the first aspect, the first end of the first radiator and the first end of the second radiator are ground ends disposed on the same side, wherein the first end of the first radiator is a ground end provided on the same side. A first end of a radiator is located on a first side of the virtual axis of the first radiator, and a first end of the second radiator is located on a first side of the virtual axis of the second radiator.

In conjunction with the first aspect, in some implementations of the first aspect, both the first radiator and the first parasitic branch extend in the first direction, and the second end of the first radiator is an open end. , the first end of the first parasitic branch is an open end, wherein the first end of the first radiator and the second end of the first parasitic branch are grounding ends provided on opposite sides, which means that the The first end of the first radiator is on the first side in the first direction, the second end of the first radiator is on the second side in the first direction, and the first parasitic branch is The first end is on the first side in the first direction, and the second end of the first parasitic branch is on the second side in the first direction.

With reference to the first aspect, in some implementations of the first aspect, the first end of the first radiator and the second end of the first parasitic branch are ground ends provided on opposite sides, wherein the first end A first end of a radiator is located on a first side of the virtual axis of the first radiator, and a second end of the first parasitic branch is located on a second side of the virtual axis of the first parasitic branch.

With reference to the first aspect, in some implementations of the first aspect, the electronic device further includes a first resonant connection member and a first electronic component; wherein the first end of the first resonant connection member is connected to the first resonant connection member. A radiator is coupled, the second end of the first resonant connection is coupled with the first parasitic stub; and the first end of the first electronic component is coupled with the first resonant connection, the first A second end of the electronic component is coupled to the floor ground.

According to the technical solution of the embodiment of the present application, through the first resonant connection member disposed between the first radiator and the first parasitic branch and the first electronic component connected in parallel between the first resonant connection member and the floor, the second resonant connection member can be adjusted. The frequency of the resonance generated by the first resonant mode (for example, HWM) of an antenna unit and the frequency of the resonance generated by the second resonant mode (for example, OWM) make the resonances generated by the two resonant modes close to each other to form a wider resonance frequency band. , to expand the operating bandwidth of the first antenna unit. Alternatively, the resonant frequencies generated by the two resonant modes can also be made far away from each other, so that the working frequency band of the first antenna unit includes two different communication frequency bands.

Similarly, when the first resonant connection member is not provided between the first radiator and the first parasitic branch, the same technical effect can be achieved by adjusting the distance between the first radiator and the first parasitic branch.

With reference to the first aspect, in some implementations of the first aspect, the second antenna unit further includes a second parasitic branch, the second end of the second parasitic branch is coupled to the floor ground; the first The radiator and the first parasitic branch are juxtaposed, the second radiator and the second parasitic branch are juxtaposed, or the second radiator and the second parasitic branch are juxtaposed, and the second parasitic branch is juxtaposed. The first end of the radiator and the second end of the second parasitic branch are ground ends provided on opposite sides.

In some implementations of the first aspect, the first projection and the third projection are parallel to each other in the first direction and at least partially overlap in the second direction; the second projection and the fourth projection are in The first direction is parallel and at least partially overlaps in the second direction, or the second projection and the fourth projection are arranged along the same straight line in the first direction, wherein the fourth projection is the The projection of the second parasitic branch on the plane of the floor; the distance between the first end of the second radiator and the first end of the second parasitic branch is smaller than the first end of the second radiator The distance from the second end of the second parasitic branch.

According to the technical solution of the embodiment of the present application, the ground end of the second radiator and the ground end of the second parasitic branch are far away from each other and arranged on opposite sides to form a strong coupling structure. The second parasitic branch is fed through the second radiator. The electrical signal resonates to expand the working frequency band of the second antenna unit.

In conjunction with the first aspect, in some implementations of the first aspect, the first end of the first resonant connection is located between the first end of the first radiator and the midpoint of the first radiator , and/or, the second end of the first resonant connecting member is located between the second end of the first parasitic branch and the midpoint of the first parasitic branch.

In connection with the first aspect, in some implementations of the first aspect, the physical length L1 of the first radiator and the physical length L2 of the second radiator satisfy: L1×80%≤L2≤L1×120% ; The physical length L1 of the first radiator and the physical length L3 of the first parasitic branch satisfy: L1×80%≤L3≤L1×120%.

According to the technical solution of the embodiment of the present application, as the lengths of the first radiator and the first parasitic branch, and the first radiator and the second radiator become closer and closer, the radiation performance of the antenna unit becomes better and better.

With reference to the first aspect, in some implementations of the first aspect, the electronic device further includes a second electronic component; the first resonant connection member includes a gap, and the second electronic component is connected in series to the first aspect through the gap. on the first resonant connection piece.

With reference to the first aspect, in some implementations of the first aspect, the first parasitic branch and the first radiator are used to jointly generate a first resonance and jointly generate a second resonance; the second radiator Used to generate the third resonance.

With reference to the first aspect, in some implementations of the first aspect, the operating frequency band of the first antenna unit and the operating frequency band of the second antenna unit both include the first frequency band.

According to the technical solution of the embodiment of the present application, the first antenna unit and the second antenna unit may be applied to the MIMO system as sub-units thereof.

In conjunction with the first aspect, in some implementations of the first aspect, both the first radiator and the second radiator extend in the first direction, and the second end of the first radiator is an open end. , the first end of the second radiator is an open end, wherein the first end of the first radiator and the second end of the second radiator are ground ends provided on opposite sides, which means that the The first end of the first radiator is on the first side in the first direction, the second end of the first radiator is on the second side in the first direction, and the second end of the second radiator is on the first side in the first direction. The first end is on the first side in the first direction, and the second end of the second radiator is on the second side in the first direction.

In a second aspect, an electronic device is provided, including: a floor; a first antenna unit including a first parasitic branch, a first radiator and a first feeding unit, the first radiator including a first feeding point, The first feeding unit is coupled to the first radiator through the first feeding point; the second antenna unit includes a second radiator and a second feeding unit, and the second radiator includes a second A feed point, the second feed unit is coupled to the second radiator through the second feed point, the first feed unit is different from the second feed unit; wherein, the first feed unit is different from the second feed unit; A first end of a radiator is coupled to the floor ground, a first end of the second radiator is coupled to the floor ground, and a second end of the first parasitic branch is coupled to the floor ground; a first The projection and the second projection extend in the first direction and do not overlap in the second direction. The second direction is perpendicular to the first direction. The first projection is the first radiator in the The projection on the plane where the floor is located, the second projection is the projection of the second radiator on the plane where the floor is located; the first end of the first radiator and the first end of the second radiator is a ground terminal provided on the opposite side; the first end of the first radiator and the second end of the first parasitic branch are ground terminals provided on the opposite side.

With reference to the second aspect, in some implementations of the second aspect, the first radiator and the first parasitic branch are juxtaposed.

With reference to the second aspect, in some implementations of the second aspect, the first radiator and the first parasitic branch are arranged in series.

In some implementations of the second aspect, the first projection and the third projection are arranged along the same straight line in the first direction, and the second projection and the third projection are in the first direction. Parallel upward and at least partially overlapping in the second direction, wherein the third projection is the projection of the first parasitic branch on the plane of the floor; the first end of the first radiator and the The distance between the first end of the first parasitic stub is less than the distance between the first end of the first radiator and the second end of the first parasitic stub; the first end of the second radiator and The distance between the second ends of the first parasitic stubs is smaller than the distance between the first end of the second radiator and the first end of the first parasitic stubs.

In some implementations of the second aspect, the first radiator and the second radiator are parallel and non-collinear in the first direction, and are not overlapped in the second direction, forming a weak coupling structure. The first radiator and the first parasitic branch are arranged collinearly in the first direction, and the ground end of the first radiator and the ground end of the first parasitic branch are away from each other and arranged on opposite sides, forming a strong coupling structure. The second radiator and the first parasitic branch are arranged in parallel and not collinearly, and the ground end of the second radiator and the ground end of the first parasitic branch are close to each other and arranged on the same side, forming a weakly coupled structure.

With reference to the second aspect, in some implementations of the second aspect, the electronic device further includes a first resonant connection member and a first electronic component; wherein the first end of the first resonant connection member is connected to the first resonant connection member. A radiator is coupled, the second end of the first resonant connection is coupled with the first parasitic stub; and the first end of the first electronic component is coupled with the first resonant connection, the first A second end of the electronic component is coupled to the floor ground.

With reference to the second aspect, in some implementations of the second aspect, the second antenna unit further includes a second parasitic branch, the second end of the second parasitic branch is coupled to the floor ground; the second The first end of the radiator and the second end of the second parasitic branch are ground ends provided on opposite sides.

With reference to the second aspect, in some implementations of the second aspect, the second projection and the fourth projection are arranged along the same straight line in the first direction, and the first projection and the fourth projection are located at The first direction is parallel and at least partially overlaps in the second direction, wherein the fourth projection is the projection of the second parasitic branch on the plane of the floor; the first projection of the first radiator The distance between the first end of the first radiator and the second end of the second parasitic stub is less than the distance between the first end of the first radiator and the first end of the second parasitic stub; The distance between the first end and the first end of the second parasitic stub is less than the distance between the first end of the second radiator and the second end of the second parasitic stub.

In conjunction with the second aspect, in some implementations of the second aspect, the first end of the first resonant connection is located between the first end of the first radiator and the midpoint of the first radiator , and/or, the second end of the first resonant connection is located on the first parasitic branch between the second end of the node and the midpoint of the first parasitic branch.

In conjunction with the second aspect, in some implementations of the second aspect, the first radiator and the second radiator are sheet radiators.

In conjunction with the second aspect, in some implementations of the second aspect, the first parasitic branch and the first radiator are used to jointly generate a first resonance and jointly generate a second resonance; the second radiator Used to generate the third resonance.

With reference to the second aspect, in some implementations of the second aspect, the operating frequency band of the first antenna unit and the operating frequency band of the second antenna unit both include the first frequency band.

In a third aspect, an electronic device is provided, including: a floor; a first antenna unit including a first parasitic branch, a first radiator and a first feeding unit, the first radiator including a first feeding point, The first feeding unit is coupled to the first radiator through the first feeding point; the second antenna unit includes a second radiator and a second feeding unit, and the second radiator includes a second A feed point, the second feed unit is coupled to the second radiator through the second feed point, the first feed unit is different from the second feed unit; wherein, the first feed unit is different from the second feed unit; A first end of a radiator is coupled to the floor ground, a first end of the second radiator is coupled to the floor ground, a second end of the first parasitic branch is coupled to the floor ground, and the The distance between the first end of the second radiator and the second end of the first parasitic branch is greater than the distance between the first end of the second radiator and the first end of the first parasitic branch; The first projection and the second projection are perpendicular and the extension line of the second radiator intersects the first radiator on the first radiator. The first projection is the first radiator on the The projection on the plane of the floor, the second projection is the projection of the second radiator on the plane of the floor; the first projection and the third projection are arranged along the same straight line in the first direction, and the The third projection is the projection of the first parasitic branch on the plane of the floor; the distance between the first end of the first radiator and the first end of the first parasitic branch is smaller than the first end of the first parasitic branch. The distance between the first end of the radiator and the second end of the first parasitic branch.

According to the technical solution of the embodiment of the present application, the first radiator and the second radiator are vertical, forming a weak coupling structure. The first radiator and the first parasitic branch are arranged collinearly in the first direction, and the ground end of the first radiator and the ground end of the first parasitic branch are away from each other and arranged on opposite sides, forming a strong coupling structure.

With reference to the third aspect, in some implementations of the third aspect, the electronic device further includes a first resonant connection member and a first electronic component; wherein the first end of the first resonant connection member is connected to the first resonant connection member. A radiator is coupled, the second end of the first resonant connection is coupled with the first parasitic stub; and the first end of the first electronic component is coupled with the first resonant connection, the first A second end of the electronic component is coupled to the floor ground.

With reference to the third aspect, in some implementations of the third aspect, the second antenna unit further includes a second parasitic branch, the second end of the second parasitic branch is coupled to the floor ground; the second The projection and the fourth projection are arranged along the same straight line in the second direction, the fourth projection is the projection of the second parasitic branch on the plane of the floor, and the second direction is perpendicular to the first direction; The distance between the first end of the second radiator and the first end of the second parasitic branch is smaller than the distance between the first end of the second radiator and the second end of the second parasitic branch. distance.

With reference to the third aspect, in some implementations of the third aspect, the electronic device further includes a third antenna unit; the third antenna unit includes a third radiator and a third feeding unit, and the third radiating unit The body includes a third feeding point, the third feeding unit is coupled to the third radiator through the third feeding point, the third feeding unit is connected to the first feeding unit and the The second feeding unit is different; the first radiator is located between the second radiator and the third radiator; the third projection is perpendicular to the second projection and the extension line of the third radiator Intersecting with the first radiator, the third projection is the projection of the third radiator on the plane where the floor is located.

In conjunction with the third aspect, in some implementations of the third aspect, the first end of the first resonant connection is located between the first end of the first radiator and the midpoint of the first radiator , and/or, the second end of the first resonant connecting member is located between the second end of the first parasitic branch and the midpoint of the first parasitic branch.

In conjunction with the third aspect, in some implementations of the third aspect, the first radiator and the second radiator are sheet radiators.

Combined with the third aspect, in some implementations of the third aspect, the first parasitic branch and the first radiator are used to jointly generate a first resonance and jointly generate a second resonance; the second radiator Used to generate the third resonance.

With reference to the third aspect, in some implementations of the third aspect, the operating frequency band of the first antenna unit and the operating frequency band of the second antenna unit both include the first frequency band.

Description of drawings

Figure 1 is a schematic diagram of an electronic device provided by an embodiment of the present application.

Figure 2 is a schematic diagram of current distribution corresponding to HWM of the dipole antenna provided by this application.

Figure 3 is a schematic diagram of current distribution corresponding to OWM of the dipole antenna provided by this application.

Figure 4 is a schematic diagram of current distribution after bending of the dipole antenna provided by the embodiment of the present application.

FIG. 5 is a schematic diagram of current distribution after bending of the dipole antenna provided by the embodiment of the present application.

Figure 6 is a schematic diagram of the current distribution of the added floor after the dipole antenna is bent according to the embodiment of the present application.

Figure 7 is a schematic diagram of the current distribution of the added floor after the dipole antenna is bent according to the embodiment of the present application.

FIG. 8 is a schematic diagram of the current distribution of the dipole antenna provided by the embodiment of the present application after it is bent and a floor perpendicular to the antenna unit is added.

Figure 9 is a schematic diagram of the current distribution of the dipole antenna provided by the embodiment of the present application after the bending and adding a floor perpendicular to the antenna unit.

Figure 10 is a schematic diagram of a set of antenna structures provided by an embodiment of the present application.

FIG. 11 is a schematic diagram of current distribution of the antenna structure shown in (a) in FIG. 10 .

FIG. 12 is a schematic diagram of current distribution of the antenna structure shown in (b) of FIG. 10 .

Figure 13 is a schematic diagram of an antenna structure provided by an embodiment of the present application.

Figure 14 is the S11 simulation result of the antenna unit 111 in the antenna structure shown in Figure 13.

Figure 15 is a simulation result of the isolation between antenna elements in the antenna structure shown in Figure 13.

FIG. 16 is a schematic diagram of current distribution when an electrical signal is fed into the antenna unit 111 in the antenna structure shown in FIG. 13 .

Figure 17 is a schematic diagram of an antenna structure provided by an embodiment of the present application.

Figure 18 is the S11 simulation result of the antenna unit 113 in the antenna structure shown in Figure 17.

Figure 19 is a simulation result of the isolation between antenna elements in the antenna structure shown in Figure 17.

FIG. 20 is a schematic diagram of current distribution when an electrical signal is fed into the antenna unit 113 in the antenna structure shown in FIG. 17 .

Figure 21 is a schematic diagram of the antenna structure provided by this application.

Figure 22 is a schematic diagram of S parameters of the antenna structure shown in Figure 21.

Figure 23 is a schematic diagram of current distribution when the first antenna unit in the antenna structure feeds an electrical signal.

Figure 24 is a schematic diagram of current distribution when the second antenna unit in the antenna structure is fed with an electrical signal.

Figure 25 is a schematic diagram of an electronic device 200 provided by an embodiment of the present application.

FIG. 26 is a top view of the electronic device 200 provided by the embodiment of the present application.

FIG. 27 is a partial schematic diagram of the electronic device 200 provided by the embodiment of the present application.

Figure 28 is a schematic diagram of an electronic device 300 provided by an embodiment of the present application.

Figure 29 is the S parameters of the antenna unit shown in Figure 28.

Figure 30 is the radiation efficiency and system efficiency of the antenna unit shown in Figure 28.

Figure 31 is a schematic diagram of the electric field distribution of the antenna unit shown in Figure 28.

Fig. 32 is a directional diagram of the antenna unit shown in Fig. 28.

Figure 33 is a schematic diagram of another electronic device 300 provided by an embodiment of the present application.

Figure 34 is the S11 simulation result of the antenna unit shown in Figure 33.

Figure 35 is the isolation between the antenna elements shown in Figure 33.

Figure 36 is the radiation efficiency and system efficiency of the antenna unit shown in Figure 33.

Figure 37 is a schematic diagram of the electric field distribution of the antenna unit shown in Figure 33.

Fig. 38 is a directional diagram of the antenna unit shown in Fig. 33.

Figure 39 is a schematic diagram of an antenna structure provided by an embodiment of the present application.

Figure 40 is a schematic structural diagram of an electronic device 500 provided by an embodiment of the present application.

Figure 41 is the S parameters of the antenna unit shown in Figure 40.

Figure 42 is the radiation efficiency and system efficiency of the antenna unit shown in Figure 40.

Figure 43 is a schematic diagram of the electric field distribution of the antenna unit shown in Figure 40.

Fig. 44 is a directional diagram of the antenna unit shown in Fig. 40.

Figure 45 is a schematic structural diagram of an electronic device 600 provided by an embodiment of the present application.

Fig. 46 shows S parameters of the antenna unit shown in Fig. 45.

Figure 47 is a schematic structural diagram of an electronic device 600 provided by an embodiment of the present application.

Fig. 48 shows S parameters of the antenna unit shown in Fig. 47.

Figure 49 is a schematic structural diagram of an electronic device 600 provided by an embodiment of the present application.

Fig. 50 shows S parameters of the antenna unit shown in Fig. 49.

Figure 51 is a schematic structural diagram of an electronic device 600 provided by an embodiment of the present application.

FIG. 52 shows S parameters of the antenna unit shown in FIG. 51 .

Figure 53 is a schematic structural diagram of an electronic device 600 provided by an embodiment of the present application.

FIG. 54 shows S parameters of the antenna unit shown in FIG. 53 .

Figure 55 is a schematic structural diagram of an electronic device 600 provided by an embodiment of the present application.

Fig. 56 shows S parameters of the antenna unit shown in Fig. 55.

Figure 57 is a schematic structural diagram of an electronic device 600 provided by an embodiment of the present application.

Detailed ways

The terms that may appear in the embodiments of this application are explained below.

Coupling: can be understood as direct coupling and/or indirect coupling, and "coupling connection" can be understood as direct coupling connection and/or indirect coupling connection. Direct coupling can also be called "electrical connection", which is understood as the physical contact and electrical conduction of components; it can also be understood as the printed circuit board (PCB) copper foil or wires between different components in the circuit structure. A form of connection through physical lines that can transmit electrical signals; "indirect coupling" can be understood as two conductors being electrically connected through space/non-contact. In one embodiment, indirect coupling may also be called capacitive coupling, for example, signal transmission is achieved by forming an equivalent capacitance through coupling between a gap between two conductive members.

Connection/connection: It can refer to a mechanical connection relationship or a physical connection relationship. For example, the connection between A and B or the connection between A and B can refer to the existence of fastening components (such as screws, bolts, rivets, etc.) between A and B. Or A and B are in contact with each other and A and B are difficult to separate.

Capacitance: can be understood as lumped capacitance and/or distributed capacitance. Lumped capacitance refers to capacitive components, such as capacitor components; distributed capacitance (or distributed capacitance) refers to the equivalent capacitance formed by two conductive parts separated by a certain gap.

Inductance: can be understood as lumped inductance and/or distributed inductance. Lumped inductance refers to inductive components, such as inductors; distributed inductance (or distributed inductance) refers to the equivalent inductance formed by a conductor due to curling or rotation, or an arbitrary form of wiring.

Resonance/resonance frequency: Resonance frequency is also called resonance frequency. The resonant frequency can refer to the frequency at which the imaginary part of the antenna input impedance is zero. The resonant frequency can have a frequency range, that is, the frequency range in which resonance occurs. The frequency corresponding to the strongest resonance point is the center frequency point frequency. The return loss characteristics of the center frequency can be less than -20dB.

Resonance frequency band/communication frequency band/working frequency band: No matter what type of antenna, it always works within a certain frequency range (frequency band width). For example, the working frequency band of an antenna that supports the B40 frequency band includes frequencies in the range of 2300MHz to 2400MHz, or in other words, the working frequency band of the antenna includes the B40 frequency band. The frequency range that meets the index requirements can be regarded as the working frequency band of the antenna.

Electrical length: It can refer to the ratio of physical length (i.e. mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave. The electrical length can satisfy the following formula:

Among them, L is the physical length, and λ is the wavelength of the electromagnetic wave.

Wavelength: or working wavelength, which can be the wavelength corresponding to the center frequency of the resonant frequency or the center frequency of the working frequency band supported by the antenna. For example, assuming that the center frequency of the B1 uplink frequency band (resonant frequency is 1920MHz to 1980MHz) is 1955MHz, the operating wavelength can be the wavelength calculated using the frequency of 1955MHz. Not limited to the center frequency, "working wavelength" can also refer to the wavelength corresponding to the resonant frequency or non-center frequency of the working frequency band.

End: the first end (second end) of the antenna radiator, and the ground end or open end. It cannot be understood in a narrow sense as a point. It can also be considered as a section of the antenna radiator including the first endpoint. . In one embodiment, the first endpoint is an endpoint of the antenna radiator at the first gap. For example, the first end of the antenna radiator can be considered as a section of the radiator within a first wavelength range that is one-sixteenth of the distance from the first end point, where the first wavelength can be a wavelength corresponding to the operating frequency band of the antenna structure, It can be the wavelength corresponding to the center frequency of the working frequency band, or the wavelength corresponding to the resonance point.

Open end, closed end: In some embodiments, the open end/closed end is relative to each other, for example, the closed end is grounded, and the open end is not grounded, or for example, relative to other conductors, the closed end is electrically connected Other conductors, the open end is not electrically connected to other conductors. In one embodiment, the open end may also be called an open end, or an open end. In one embodiment, the closed end may also be called a ground end, or short circuit end.

Limitations on position and distance such as the middle or middle position mentioned in the embodiments of this application all represent a certain range. For example, the middle (location) of the conductor may be a portion of the conductor that includes the midpoint on the conductor. For example, the middle (location) of the conductor may be a distance on the conductor from the midpoint that is less than a predetermined threshold (e.g., 1 mm, 2 mm, or 2.5 mm). ) a conductor section.

The definitions mentioned in the embodiments of this application such as collinear, coplanar (for example, axial symmetry, or center symmetry, etc.), parallel, perpendicular, identical (for example, same length, same width, etc.) are all for the current In terms of technological level, rather than an absolutely strict definition in a mathematical sense. There may be a deviation less than a predetermined threshold (eg 1 mm, 0.5 m, or 0.1 mm) in the line width direction between the edges of two collinear radiating branches or two antenna units. There may be a deviation less than a predetermined threshold between the edges of two coplanar radiating branches or two antenna elements in a direction perpendicular to their coplanar plane. There may be a predetermined angle of deviation between two antenna units that are parallel or perpendicular to each other. In one embodiment, the predetermined threshold may be less than or equal to a threshold of 1 mm, for example, the predetermined threshold may be 0.5 mm, or may be 0.1 mm. In one embodiment, the predetermined angle may be an angle within a range of ±10°, for example, the predetermined angle deviation is ±5°.

Antenna system efficiency (total efficiency): refers to the ratio of input power to output power at the port of the antenna.

Antenna radiation efficiency: refers to the ratio of the power radiated by the antenna to space (that is, the power of the electromagnetic wave effectively converted) and the active power input to the antenna. Among them, the active power input to the antenna = the input power of the antenna - the loss power; the loss power mainly includes the return loss power and the ohmic loss power of the metal and/or the dielectric loss power. Radiation efficiency is a measure of the radiation ability of an antenna. Metal loss and dielectric loss are both influencing factors of radiation efficiency.

Those skilled in the art can understand that efficiency is generally expressed as a percentage, and there is a corresponding conversion relationship between it and dB. The closer the efficiency is to 0dB, the better the efficiency of the antenna is.

Antenna pattern: also called radiation pattern. It refers to the graph in which the relative field strength (normalized mode value) of the antenna radiation field changes with the direction at a certain distance from the antenna. It is usually represented by two mutually perpendicular plane patterns in the maximum radiation direction of the antenna.

Antenna patterns usually have multiple radiation beams. The radiation beam with the greatest radiation intensity is called the main lobe, and the remaining radiation beams are called side lobes or side lobes. Among the side lobes, the side lobes in the opposite direction to the main lobe are also called back lobes.

Antenna return loss: It can be understood as the ratio of the signal power reflected back to the antenna port through the antenna circuit and the transmit power of the antenna port. The smaller the reflected signal is, the larger the signal radiated to space through the antenna is, and the greater the antenna's radiation efficiency is. The larger the reflected signal is, the smaller the signal radiated to space through the antenna is, and the smaller the antenna's radiation efficiency is.

Antenna return loss can be represented by the S11 parameter, which is one of the S parameters. S11 represents the reflection coefficient, which can characterize the antenna's emission efficiency. The S11 parameter is usually a negative number. The smaller the S11 parameter, the smaller the return loss of the antenna, and the smaller the energy reflected back by the antenna itself, which means that more energy actually enters the antenna, and the higher the system efficiency of the antenna is. S11 parameter The larger the value, the greater the antenna return loss and the lower the antenna system efficiency.

It should be noted that in engineering, the S11 value of -6dB is generally used as a standard. When the S11 value of an antenna is less than -6dB, it can be considered that the antenna can work normally, or the antenna's radiation efficiency can be considered to be good.

Ground, or floor: can generally refer to at least part of any ground layer, or ground plate, or ground metal layer, etc. in an electronic device (such as a mobile phone), or any combination of any of the above ground layers, or ground plates, or ground components, etc. At least in part, "ground" can be used to ground components within electronic equipment. In one embodiment, "ground" may be the grounding layer of the circuit board of the electronic device, or it may be the grounding plate formed by the middle frame of the electronic device or the grounding metal layer formed by the metal film under the screen. In one embodiment, the circuit board may be a printed circuit board (PCB), such as an 8-, 10-, or 12- to 14-layer board with 8, 10, 12, 13, or 14 layers of conductive material, or by a circuit board such as Components separated and electrically insulated by dielectric or insulating layers such as fiberglass, polymer, etc.

Any of the above ground layers, or ground plates, or ground metal layers are made of conductive materials. In one embodiment, the conductive material can be any of the following materials: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, Silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil and tin-plated copper on an insulating substrate, cloth impregnated with graphite powder, graphite-coated substrate, copper-plated substrate, brass-plated substrate sheet and aluminized substrate. Those skilled in the art can understand that the ground layer/ground plate/ground metal layer can also be made of other conductive materials.

It should be understood that, as mentioned in this article, the resonant frequency band of the first resonance and the resonant frequency band of the second resonance are the same (also called the same frequency) can be understood as any of the following situations:

The resonant frequency band of the first resonance and the resonant frequency band of the second resonance include the same communication frequency band. In one embodiment, the first resonance and the second resonance can be applied to the MIMO antenna system. For example, if the resonant frequency band of the first resonance and the resonant frequency band of the second resonance both include the sub6G frequency band in 5G, then the first resonance can be considered The resonant frequency band is the same frequency as the resonant frequency band of the second resonance.

The resonant frequency band of the first resonance and the resonant frequency band of the second resonance have at least partial frequency overlap. For example, the resonant frequency band of the first resonance includes B35 (1.85-1.91GHz) in LTE, and the resonant frequency band of the second resonance includes B39 in LTE. (1.88-1.92GHz), the resonant frequency band of the first resonance and the resonant frequency band of the second resonance partially overlap, then it can be considered that the resonant frequency band of the first resonance and the resonant frequency band of the second resonance are of the same frequency.

As shown in Figure 1, the electronic device 10 may include: a cover (cover) 13, a display screen/module (display) 15, a printed circuit board (PCB) 17, a middle frame (middle frame) 19 and a rear panel. Cover (rear cover)21. It should be understood that in some embodiments, the cover 13 can be a glass cover (cover glass), or can be replaced with a cover made of other materials, such as an ultra-thin glass material cover, PET (Polyethylene terephthalate, polytetraphenylene). Ethylene formate) material cover, etc.

Among them, the cover 13 can be placed close to the display module 15 and can be mainly used to protect the display module 15 and prevent dust.

In one embodiment, the display module 15 may include a liquid crystal display panel (LCD), a light emitting diode (LED) display panel or an organic light-emitting semiconductor (organic light-emitting diode, OLED) display panel, etc. , the embodiment of the present application does not limit this.

The middle frame 19 mainly plays a supporting role of the whole machine. Figure 1 shows that the PCB 17 is disposed between the middle frame 19 and the back cover 21. It should be understood that in one embodiment, the PCB 17 can also be disposed between the middle frame 19 and the display module 15. In this embodiment of the present application, There are no restrictions. Among them, the printed circuit board PCB17 can use a flame-resistant material (FR-4) dielectric board, a Rogers dielectric board, or a mixed dielectric board of Rogers and FR-4, etc. Here, FR-4 is the code for a flame-resistant material grade, and Rogers dielectric board is a high-frequency board. PCB17 carries electronic components, such as radio frequency chips, etc. In one embodiment, a metal layer may be provided on the printed circuit board PCB 17 . This metal layer can be used for grounding the electronic components carried on the printed circuit board PCB17, and can also be used for grounding other components, such as bracket antennas, frame antennas, etc. The metal layer can be called a floor, a ground plate, or a ground layer. In one embodiment, the metal layer may be formed by etching metal on the surface of any dielectric board in the PCB 17 . In one embodiment, the metal layer used for grounding may be disposed on a side of the printed circuit board PCB 17 close to the middle frame 19 . In one embodiment, the edge of the printed circuit board PCB 17 can be regarded as the edge of its ground plane. In one embodiment, the metal middle frame 19 can also be used for grounding the above components. The electronic device 10 may also have other floors/ground plates/ground layers, as mentioned above, which will not be described again here.

The electronic device 10 may also include a battery (not shown in the figure). The battery may be disposed between the middle frame 19 and the back cover 21 , or may be disposed between the middle frame 19 and the display module 15 , which is not limited in the embodiment of the present application. In some embodiments, the PCB 17 is divided into a main board and a sub-board. The battery can be disposed between the main board and the sub-board. The main board can be disposed between the middle frame 19 and the upper edge of the battery, and the sub-board can be disposed between the main board and the sub-board. Between the middle frame 19 and the lower edge of the battery.

The electronic device 10 may also include a frame 11, and the frame 11 may be formed of a conductive material such as metal. The frame 11 may be disposed between the display module 15 and the back cover 21 and extend circumferentially around the periphery of the electronic device 10 . The frame 11 may have four sides surrounding the display module 15 to help fix the display module 15 . In one implementation, the frame 11 made of metal material can be directly used as the metal frame of the electronic device 10 to form the appearance of a metal frame, which is suitable for metal industrial design (ID). In another implementation, the outer surface of the frame 11 can also be made of non-metal material, such as a plastic frame, to form the appearance of a non-metal frame, which is suitable for non-metal IDs.

The middle frame 19 may include a frame 11 , and the middle frame 19 including the frame 11 may act as an integral part to support electronic devices in the entire machine. The cover 13 and the back cover 21 are respectively covered along the upper and lower edges of the frame to form a shell or housing of the electronic device. In one embodiment, the cover 13 , the back cover 21 , the frame 11 and/or the middle frame 19 can be collectively referred to as the casing or housing of the electronic device 10 . It should be understood that "casing or housing" can be used to refer to part or all of any one of the cover 13 , the back cover 21 , the frame 11 or the middle frame 19 , or to refer to the cover 13 , the back cover 21 , or the frame 11 or any combination of part or all of box 19.

The frame 11 on the middle frame 19 can be at least partially used as an antenna radiator to receive/transmit frequency signals. There can be a gap between this part of the frame as the radiator and other parts of the middle frame 19, thereby ensuring that the antenna radiator has good performance. radiation environment. In one embodiment, the middle frame 19 may be provided with an aperture at this part of the frame serving as a radiator to facilitate radiation of the antenna.

Alternatively, the frame 11 may not be regarded as a part of the middle frame 19 . In one embodiment, the frame 11 can be connected to the middle frame 19 and formed integrally. In another embodiment, the frame 11 may include an inwardly extending protruding piece to be connected to the middle frame 19 , for example, through elastic pieces, screws, welding, etc. The protruding parts of the frame 11 can also be used to receive feed signals, so that at least a part of the frame 11 acts as a radiator of the antenna to receive/transmit frequency signals. There may be a gap 42 between this part of the frame of the radiator and the middle frame 30 to ensure that the antenna radiator has a good radiation environment and the antenna has a good signal transmission function.

Among them, the back cover 21 can be a back cover made of metal material; it can also be a back cover made of non-conductive materials, such as glass back cover, plastic back cover and other non-metal back covers; or it can also include both conductive materials and non-conductive materials. Material back cover. In one embodiment, it includes The back cover 21 made of electrical material can replace the middle frame 19 and be integrated with the frame 11 to support the electronic devices in the entire machine.

In one embodiment, the conductive part in the middle frame 19 and/or the back cover 21 can be used as a reference ground for the electronic device 10, wherein the frame 11, PCB 17, etc. of the electronic device can be realized through electrical connection with the middle frame. Ground.

The antenna of the electronic device 10 can also be disposed in the frame 11 . When the frame 11 of the electronic device 10 is made of non-conductive material, the antenna radiator can be located in the electronic device 10 and arranged along the frame 11 . For example, the antenna radiator is arranged close to the frame 11 to minimize the volume occupied by the antenna radiator and to be closer to the outside of the electronic device 10 to achieve better signal transmission effects. It should be noted that the arrangement of the antenna radiator close to the frame 11 means that the antenna radiator can be arranged close to the frame 11 or close to the frame 11 . For example, there can be a certain tiny gap between the antenna radiator and the frame 11 .

The antenna of the electronic device 10 may also be disposed in the housing, such as a bracket antenna, a millimeter wave antenna, etc. (not shown in FIG. 1 ). The clearance of the antenna arranged in the housing can be obtained by the slits/openings on any one of the middle frame, and/or the frame, and/or the back cover, and/or the display screen, or it can be formed between any of them. The non-conductive gap/aperture is obtained, and the clearance setting of the antenna can ensure the radiation performance of the antenna. It should be understood that the clearance of the antenna may be a non-conductive area formed by any conductive component in the electronic device 10, and the antenna radiates signals to the external space through the non-conductive area. In one embodiment, the antenna 40 may be in the form of a flexible printed circuit (FPC)-based antenna, a laser-direct-structuring (LDS)-based antenna, or a microstrip antenna (microstrip disk antenna). , MDA) and other antenna forms. In one embodiment, the antenna may also adopt a transparent structure embedded inside the screen of the electronic device 10 , so that the antenna is a transparent antenna unit embedded inside the screen of the electronic device 10 .

FIG. 1 only schematically shows some components included in the electronic device 10 , and the actual shapes, actual sizes and actual structures of these components are not limited by FIG. 1 .

It should be understood that in the embodiments of the present application, the side where the display screen of the electronic device is located can be considered to be the front, the side where the back cover is located is the back, and the side where the frame is located is the side.

It should be understood that in the embodiments of the present application, it is considered that when the user holds the electronic device (usually vertically and facing the screen), the orientation of the electronic device has a top, a bottom, a left side, and a right side.

Embodiments of the present application provide an electronic device that may include multiple antenna units. The multiple antenna units are arranged in different ways to achieve high isolation at a small spacing to meet the needs of the MIMO system.

Figures 2 and 3 illustrate the two antenna modes involved in this application. In the embodiments of FIG. 2 and FIG. 3 , a dipole antenna is used as an illustration. It should be understood that this application does not limit the introduction of antenna modes to specific antenna forms and/or antenna shapes. The embodiment shown in Figure 2 is a schematic diagram of the current distribution corresponding to the half wavelength mode (HWM, also known as one-half wavelength mode or one-half mode) of the dipole antenna. The embodiment shown in Figure 3 is a schematic diagram of the current distribution corresponding to one wavelength mode (OWM) of the dipole antenna. In other embodiments of the present application, the half-wavelength mode and the one-wavelength mode may be applicable to other antenna forms, not only for wire antennas (wire antennas), but also for patch antennas (patch antennas). The specific antenna form can be, for example, planar inverted-L antenna (PILA), planar inverted-F antenna (planar inverted-F Antenna, PIFA), inverted-F antenna (inverted-F antenna, IFA), inverted L antenna ( inverted-L antenna, ILA), monopole antenna, etc. Moreover, in other embodiments of the present application, the radiator of the antenna can be in any shape/form (for example, straight, bent, linear, sheet, split, integrated, etc.), and Does not affect the working mode of the antenna.

1. Half-wavelength mode:

As shown in Figure 2, the dipole antenna 101 has HWM. The characteristic of this mode is that the current has the same direction on the antenna radiator and has a strong current point. For example, the current amplitude is greatest in the middle of the antenna radiator and the current amplitude is smallest at the two ends.

2. Double wavelength mode:

As shown in Figure 3, there is OWM in the dipole antenna 101. The characteristic of this mode is that the current direction is opposite on both sides of the antenna radiator (for example, both sides of the middle position of the radiator) and has two strong current points. and three current zero points. For example, the current amplitude is the smallest at both ends and the middle of the radiator, and the current amplitude is the largest at the middle position between the two ends and the center point of the radiator.

The same/opposite current directions mentioned in the embodiments of this application should be understood to mean that the main current directions on the radiator are the same/opposite direction. For example, the currents are generally in the same/opposite direction. When stimulating currents distributed in the same direction on a ring-shaped radiator (for example, the current path is also ring-shaped), it should be understood that the conductors on both sides of the ring conductor (for example, conductors surrounding a gap, on both sides of the gap) Although the main current excited on the conductor on the other side is reverse in direction, it still belongs to the definition of co-directional distributed current in this application.

It can be known from the electromagnetic induction theorem that the current strong point mentioned in the embodiment of the present application can correspond to the electric field zero point, and the current zero point can correspond to the electric field strong point. Strong point and zero point are relative concepts, which are commonly understood by those skilled in the art. They are not the maximum or minimum in the strict sense, nor are they just Indicates a certain point, but refers to an area. For example, an area with an amplitude far above the average can be a strong point, an area far below the average can be a zero point, and the maximum/minimum amplitude and so on should be understood accordingly. Those skilled in the art can understand that usually the ground end corresponds to the current strong point (or electric field zero point); usually the open end corresponds to the electric field strong point (or current zero point); and usually the current reverse region corresponds to the current zero point (or , electric field strong point); usually the electric field reverse area corresponds to the electric field zero point (or, current strong point).

It should be understood that the current distribution diagram shown in each embodiment of the present application only shows the approximate current direction of the antenna structure at a certain moment when the radiator feeds an electrical signal. The schematic current distribution is simplified for ease of understanding. A schematic diagram of the distribution of current (for example, a current with a current amplitude exceeding 50%), for example, the current distribution on the floor is simplified to the current distribution in a partial area close to the radiator, and only its general direction is illustrated. It should be noted that the current distribution arrow is only used to indicate the direction of the current and does not mean that the flow area of the current is limited to the location indicated by the arrow.

4 and 5 are schematic diagrams of current distribution after the antenna radiator is bent according to the embodiment of the present application.

Bend the two ends of the dipole antenna shown in Figure 2 and Figure 3 inward to form the shape of Figure 4 and Figure 5. The HWM and OWM still exist. At this time, the current generated by the dipole antenna 101 in the HWM is shown in Figure 4. The current is distributed in the same direction around the middle gap. The current generated by the dipole antenna 101 in the OWM is shown in Figure 5. The current is distributed around the middle gap. Presenting a reverse distribution, the characteristics of the current amplitude are the same or similar to those shown in Figures 2 and 3.

6 and 7 are schematic diagrams of the current distribution of the dipole antenna provided by the embodiment of the present application after the floor is added after bending. In one embodiment, the antenna radiator and the floor may be disposed coplanarly (for example, the radiator is disposed outside one side of the floor).

On the basis of the bent dipole antenna shown in Figures 4 and 5, a floor 102 electrically connected to the dipole antenna is added. As shown in Figures 6 and 7, the floor 102 can be a PCB of an electronic device. Midframe or other metal layer. . In this case, the dipole antenna consists of the antenna element 103 and part of the floor 102, and the HWM and OWM are still present. At this time, the current generated by the dipole antenna in the HWM is shown in Figure 6, and the current is distributed in the same direction around the middle gap 104. The current generated by the dipole antenna in the OWM is shown in Figure 7, and the current is distributed around the middle gap. For reverse distribution, the characteristics of the current amplitude are the same or similar to those mentioned above. At this time, the floor 102 carries part of the mode current of the dipole antenna, that is, the floor 102 carries the mode current between the two bent antenna units (the connection point with the floor 102). role.

In one embodiment, the antenna radiator and the floor may be stacked (for example, the radiator is disposed on one side of the floor). Figures 8 and 9 are schematic diagrams of current distribution after the dipole antenna is bent and a floor stacked with the antenna unit is added according to the embodiment of the present application.

On the basis of the bent dipole antenna shown in Figures 4 and 5, a floor 107 is added to connect to the antenna. After the connection, the antenna unit 108 is placed above the floor 107. It can be seen as two antenna units placed on the floor. As shown in Figure 8 and Figure 9. The floor 107 may be a PCB, midframe or other metal layer of the electronic device. In this case, the two modes of the antenna unit, HWM and OWM, still exist. At this time, the current generated by the dipole antenna in the HWM is shown in Figure 8. The current is distributed in the same direction around the middle gap, while the current generated by the dipole antenna in the OWM is shown in Figure 9. The current is distributed in opposite directions around the middle gap. distribution, the characteristics of the current amplitude are the same as described in the above figure. At this time, the floor 107 carries part of the mode current of the antenna, and the floor 107 plays a role in carrying the mode current between the two bent antenna units (the connection point with the floor 107) between the two bent antenna units.

Figure 10 is a schematic diagram of a set of antenna structures provided by an embodiment of the present application.

As shown in (a) and (b) in Figure 10, the antenna structure includes two radiators 110 juxtaposed (juxtoposed, or placed side by side) or arranged in parallel (arranged in parallel). The juxtaposition or parallel arrangement can be understood as meaning that the two radiators 110 are arranged in relatively close positions (for example, the distance between the radiators is less than 5 mm), and the extension direction of each radiator (for example, specifically, its grounding end to open end) are generally consistent (for example, the angle between the extension directions is in the range of 0 to 10°, or in the range of 170 to 180°), and most of one radiator can be projected onto the other radiator (It can also be said that the two radiators 110 generally overlap in the direction perpendicular to the extension direction of the radiators). Among them, "mostly projected on another radiator" or "substantially overlapping" can mean the projection or overlap of the radiator in the extension direction, and does not necessarily mean the projection or overlap of the entire radiator. For example, both the first radiator and the second radiator extend in the X direction, where the first radiator can be in the shape of a sheet on the XY plane, and the second radiator can be in the shape of a sheet on the XZ plane (wherein, the XY plane and the XZ plane are two perpendicular planes), but the parts extending in the X direction of the two radiators can be regarded as substantially overlapping, or the projection of the first radiator on the second radiator can be regarded as a large A portion (for example, more than 80% of the length in the extension direction) is projected on the second radiator. It should be understood that "the projection of A on B" or "the projection of A on B" means that A is projected on B in the extending direction perpendicular to B.

In one embodiment, the projections of two radiators arranged side by side or in parallel on the floor are juxtaposed or arranged in parallel. In one embodiment, the projections of two radiators arranged juxtaposed or in parallel on the floor can be arranged parallel and non-collinear. Specifically, the two radiators 110 is parallel in the length direction and overlaps at least a part left and right in the length direction. One end of each radiator 110 is connected to the floor 120 , for example, the black dot in the figure is the schematic ground point of the radiator.

The difference between the radiators arranged in parallel as shown in (a) and (b) in Figure 10 is that the ground ends of the two radiators 110 are close to each other and located on the same side, as shown in (a) in Figure 10 , or the ground terminals of the two radiators 110 are far away from each other and located on opposite sides, as shown in (b) in Figure 10 .

The embodiment shown in Figure 10 first sets up two parallel radiators 110 that are not collinear and overlap left and right in the parallel direction without considering the power feed. The two radiators are connected to the same floor 120 respectively. The radiators 110 and at least part of the floor jointly form the antenna structure in FIG. 10 . It should be understood that the antenna structure of the embodiment shown in FIG. 10 can be an antenna structure including a single antenna unit (for example, in which only one radiator is provided with a feed point), or an antenna structure including two antenna units (each antenna unit has a feeding point). An antenna structure that includes a feed point (e.g., two radiators each provided with a feed point). The positions of the two radiators 110 in the embodiment shown in FIG. 10 can be relatively offset. For example, one of the two radiators 110 can be translated, or can be rotated along the end of the radiator 110 .

In order to analyze the mode in the embodiment of the present application, it is assumed that the current distribution of the antenna structure shown in (a) in Figure 10 under HWM is shown in (a) in Figure 11, and it is assumed that the current distribution under OWM is shown in Figure 11 As shown in (b).

As shown in (a) of Figure 11 , reverse mode currents can be generated on the two radiators 110 (which can be understood as the current corresponding to the working mode when the antenna unit resonates). Between the two radiators 110 Pattern current can be generated on the floor 120 . The distance between the two radiators 110 can be understood as the connection point (location) between the radiators 110 and the floor. At the same time, the mode current on the radiator will excite an induced current on the floor 120 (which can be understood as the current generated by the coupling of the mode current on the radiator on the floor). According to the electromagnetic induction theorem, the mode current and the corresponding induced current Reverse. In the case where the two ground terminals are on the same side, the mode current on the floor 120 may be perpendicular to the mode current on the radiator of the antenna unit, and the induced current on the floor 120 may be perpendicular to the mode current on the radiator. are parallel and opposite, so the mode current and the induced current on the floor 120 are also orthogonal. For the mode current between two locations on the floor 120, since the mode current on the floor is orthogonal to the induced current, it does not have a component in the same direction as the induced current. In one embodiment, the dotted line area on the floor 120 is the current strong point area (including the current strong point in this area) of the mode current, but for the induced current, it is the current zero point area (including the current strong point in this area). Current zero point), the induced current on the floor 120 cannot support the mode current generation on the floor 120, indicating that the mode does not meet the boundary conditions, so there is no HWM in the antenna structure shown in (a) in Figure 10.

It should be understood that for the boundary conditions, if there are components with the same direction between the induced current generated by the antenna unit and the mode current, the boundary conditions are met.

Similarly, as shown in (b) of FIG. 11 , mode currents in the same direction can be generated on the two radiators 110 , and mode currents can be generated on the floor 120 between the two radiators 110 . The mode current on the radiator will excite an induced current on the floor 120. According to the electromagnetic induction theorem, the mode current is opposite to the corresponding induced current. In the case where the two ground terminals are on the same side, the mode current on the floor 120 may be perpendicular to the mode current on the radiator of the antenna unit, and the induced current on the floor 120 may be perpendicular to the mode current on the radiator. are parallel and opposite, so the mode current and the induced current on the floor 120 are also orthogonal. For the mode current between two locations on the floor 120, since the floor mode current is orthogonal to the induced current, it does not have a component in the same direction as the induced current. In one embodiment, the dotted line area on the floor 120 is the current zero point area of the mode current, but for the induced current, it is the current strong point area. The induced current on the floor 120 cannot support the generation of the mode current on the floor. This shows that this mode does not meet the boundary conditions, so there is no OWM in the antenna structure shown in (a) in Figure 10.

In order to further analyze the mode in the embodiment of the present application, assume that the current distribution of the antenna structure shown in (b) in Figure 10 under HWM is shown in Figure 12(a), and assume that the current distribution under OWM is as shown in Figure 12(a) As shown in (b) in 12.

As shown in (a) of FIG. 12 , mode currents in the same direction can be generated on the two radiators 110 , and mode currents can be generated on the floor 120 between the two radiators 110 . The mode current on the radiator will excite an induced current on the floor 120. According to the electromagnetic induction theorem, the mode current is opposite to the corresponding induced current. For the mode current between two locations on the floor 120, it has a component in the same direction as the induced current, and the two can be superimposed. In one embodiment, the dotted line area on the floor 120 is the current strong point area of the mode current and the induced current, indicating that the mode meets the boundary conditions and can exist. Therefore, the antenna structure shown in (b) in Figure 10 HWM exists in .

Similarly, as shown in (b) of FIG. 12 , reverse mode currents 122 may be generated on the two radiators 110 , and a mode current may be generated on the floor 120 between the two radiators 110 . The pattern current on the radiator will excite an induced current on the floor 120, due to According to the electromagnetic induction theorem, the mode current is opposite to the corresponding induced current. For the mode current between two locations on the floor 120, it has a component in the same direction as the induced current, and the two can be superimposed. In one embodiment, the dotted line area on the floor 120 is the current zero point area of the mode current and the induced current, indicating that the mode meets the boundary conditions and can exist. Therefore, in the antenna structure shown in (b) in Figure 10 OWM exists.

It should be understood that in the above-mentioned antenna structures shown in (b) of FIG. 10 and FIG. 11 , since the two radiators 110 may not have HWM and OWM, the spatial distance/physical distance between the radiators 110 is important for the two radiators 110 . The degree of isolation of the person has a greater impact. This antenna structure can be called a weakly coupled antenna structure. In the antenna structures shown in (a) of Figure 10 and Figure 12 above, since HWM and OWM can exist in two radiators 110, the spatial distance/physical distance between the radiators 110 has an important impact on the isolation between the two radiators 110. The impact is smaller. This antenna structure can be called a strong coupling antenna structure. Some characteristics of weakly coupled antenna structures and strongly coupled antenna structures are expanded below.

Figures 13 to 16 are an antenna structure and its simulation results provided by embodiments of the present application. Among them, FIG. 13 is a schematic diagram of an antenna structure provided by an embodiment of the present application. Figure 14 is the S11 simulation result of the antenna unit 111 in the antenna structure shown in Figure 13. Figure 15 is a simulation result of the isolation between antenna elements in the antenna structure shown in Figure 13. FIG. 16 is a schematic diagram of current distribution when an electrical signal is fed into the antenna unit 111 in the antenna structure shown in FIG. 13 .

As shown in Figure 13, the antenna structure may include an antenna unit 111 and an antenna unit 112. The ground terminals of the antenna unit 111 and the antenna unit 112 are ground terminals provided on the same side. The same side can be understood as the ground terminals are located on the left or right side of the radiator, or on the upper or lower side. In one embodiment, two juxtaposed radiators have ground terminals arranged on the same side, and their ground terminals are close to each other. Closeness can be understood as the distance between the ground terminals of the antenna unit 111 and the antenna unit 112 is greater than the distance between any ground terminal of the antenna unit 111 and the antenna unit 112 to any open end.

In the embodiment of the present application, the first radiator and the second radiator (or first parasitic branch) both extend in the first direction, the first end of the first radiator is the ground end, and the second end is open end, the first end of the second radiator is the open end, and the second end is the ground end. Wherein, the first end of the first radiator and the second end of the second radiator are ground ends provided on opposite sides, which can be understood as the first side of the first end of the first radiator in the first direction, and the first The second end of the radiator is on the second side in the first direction, the first end of the second radiator is on the first side in the first direction, and the second end of the second radiator is on the third side in the first direction. Two sides. Wherein, the first end of the first radiator and the second end of the second radiator are ground terminals arranged on the same side, which can be understood as the first side of the first end of the first radiator in the first direction, and the second end of the first radiator. The second end of a radiator is on the second side in the first direction, the first end of the second radiator is on the second side in the first direction, and the second end of the second radiator is on the second side in the first direction. First side.

In one embodiment, the ground end being located on the same side can be understood as being located on the same side of the virtual axis of the radiator, and the distance between the virtual axis and the open end of the radiator and the ground end is the same.

Compared with the antenna structure shown in (a) of FIG. 10 , the embodiment shown in FIG. 13 adds a feeding diagram. In one embodiment, a feed point can be added on the ground end side of the antenna unit for feeding electrical signals through the feed unit at the feed position. In other embodiments, the feeding position can also be adjusted according to actual design needs. For example, the feeding point can be located at the center of the radiator, or between the center of the radiator and the ground terminal. This application does not do this. limit.

As shown in Figure 14, when the antenna unit 111 feeds an electrical signal, a resonance can be generated, as the distance D1 between the center of the antenna unit 111 (can be understood as the geometric center of the radiator) and the center of the antenna unit 112 Increase (for example, D1 gradually increases from 5mm to 20mm), the resonance changes slightly.

As shown in FIG. 15 , as the distance D1 between the center of the antenna unit 111 and the center of the antenna unit 112 increases, the isolation between the antenna unit 111 and the antenna unit 112 becomes better and better.

Please refer to Figure 16. For ease of understanding, the relative positions of the antenna structure shown in Figure 16, and the relative positions of the feed position and the ground position on the radiator are the same or similar to the antenna structure shown in Figure 13. As shown in Figure 16, when the antenna unit 111 feeds an electrical signal, the mode current is mainly concentrated on the radiator of the antenna unit 111. The current on the radiator of the antenna unit 112 is an induced current, which is formed by the radiator of the antenna unit 111 and the antenna. Spatial coupling occurs between the radiators of unit 112 rather than by mode current excitation in the floor. When the distance D1 between the center of the antenna unit 111 and the center of the antenna unit 112 becomes smaller (for example, D1 gradually decreases from 20 mm to 5 mm), the induced current generated by the radiator coupling of the antenna unit 112 increases, and the antenna unit 111 and the antenna The isolation between cells 112 then deteriorates. When the distance D1 between the center of the antenna unit 111 and the center of the antenna unit 112 increases, the induced current generated by the radiator coupling of the antenna unit 112 weakens, and the isolation between the antenna unit 111 and the antenna unit 112 becomes better.

Therefore, for the antenna structure shown in Figure 13 (ground terminals on the same side), the isolation between antenna elements is mainly determined by the spatial/physical distance between the two antenna elements. Since in this antenna structure, the coupling between two antenna elements is related to the distance between them There is a negative correlation, and this type of antenna structure can be considered a weakly coupled antenna structure.

Figures 17 to 20 are an antenna structure and its simulation results provided by embodiments of the present application. Among them, FIG. 17 is a schematic diagram of an antenna structure provided by an embodiment of the present application. Figure 18 is the S11 simulation result of the antenna unit 113 in the antenna structure shown in Figure 17. Figure 19 is a simulation result of the isolation between antenna elements in the antenna structure shown in Figure 17. FIG. 20 is a schematic diagram of current distribution when an electrical signal is fed into the antenna unit 113 in the antenna structure shown in FIG. 17 .

As shown in FIG. 17 , the antenna structure may include an antenna unit 113 and an antenna unit 114 . The ground terminals of the antenna unit 113 and the antenna unit 114 are ground terminals provided on opposite sides. The opposite sides can be understood as the positions of the ground terminals on the radiator, one on the left and one on the right, or one on the upper side and one on the lower side. In one embodiment, two juxtaposed radiators have ground terminals arranged on opposite sides, and their ground terminals are far away from each other. Far away can be understood as the distance between the ground terminals of the antenna unit 113 and the antenna unit 114 is greater than the distance between any ground terminal of the antenna unit 113 and the antenna unit 114 to any open end. In one embodiment, the ground terminals are located on different sides, which can be understood as being located on different sides of the virtual axis of the radiator. The distance between the virtual axis and the open end of the radiator and the ground terminal is the same. Compared with the antenna structure shown in (b) of FIG. 10 , the embodiment shown in FIG. 17 adds a feeding diagram. In one embodiment, a feed point can be added on the ground end side of the antenna unit for feeding electrical signals through the feed unit at the feed position. In other embodiments, the feeding position can also be adjusted according to actual design needs. For example, the feeding point can be located at the center of the radiator, or between the center of the radiator and the ground terminal. This application does not do this. limit.

As shown in FIG. 18 , when the antenna unit 113 feeds an electrical signal, two resonances may be generated, for example, one is called low-frequency resonance and the other is called high-frequency resonance. As the distance D2 between the center of the antenna unit 113 and the center of the antenna unit 114 increases (for example, D2 gradually increases from 5 mm to 20 mm), the low-frequency resonance moves to high frequency, and the high-frequency resonance moves to low frequency. The frequency difference between resonances decreases.

As shown in FIG. 19 , the isolation between the antenna unit 113 and the antenna unit 114 does not change with the distance D2 between the center of the antenna unit 113 and the center of the antenna unit 114 .

Please refer to Figure 20. To facilitate understanding, the relative positions of the antenna structure shown in Figure 20, and the relative positions of the feed position and the ground position on the radiator are the same or similar to the antenna structure shown in Figure 17. As shown in Figure 20, when the antenna unit 113 feeds an electrical signal, it may include a first mode and a second mode. The first mode may be the HWM shown in (a) in Figure 12, and the second mode may be the HWM shown in (a) of Figure 12. OWM shown in (b).

As shown in (a) and (b) in Figure 20, in the first mode, the mode current flows from the open end (ungrounded end) of the antenna unit 114 to the ground end, and flows to the ground end of the antenna unit 113 through the floor. Then flowing to the open end of the antenna unit 113, the direction of the current does not change in the distribution of this mode current. When the antenna unit 113 feeds an electrical signal, the mode current on the antenna unit 114 does not have a positive or negative correlation with the distance D2 between the antenna units.

Similarly, as shown in (c) and (d) in FIG. 20 , in the second mode, the mode current flows from the open end (ungrounded end) of the antenna unit 113 to the ground end, and flows to the antenna unit 114 via the floor. Ground, and then flowing to the open end of the antenna element 114, there is a reversal in the distribution of the pattern current on the floor. When the antenna unit 113 feeds an electrical signal, the mode current on the antenna unit 114 does not have a positive or negative correlation with the distance D2 between the antenna units.

Therefore, for the antenna structure shown in Figure 17 (the ground terminals are on opposite sides), the spatial distance/physical distance between the two antenna units has less impact on the isolation. Since in this antenna structure, the coupling between the two antenna units has a small correlation with the distance between them and does not show a positive or negative correlation, this type of antenna structure can be considered a strongly coupled antenna structure.

Figures 21 to 24 show the antenna structure and its simulation results provided by this application. Among them, FIG. 21 is a schematic diagram of the antenna structure provided by this application. Figure 22 is a schematic diagram of S parameters of the antenna structure shown in Figure 21. Figure 23 is a schematic diagram of current distribution when the first antenna unit in the antenna structure feeds an electrical signal. Figure 24 is a schematic diagram of current distribution when the second antenna unit in the antenna structure is fed with an electrical signal.

Compared with the antenna structure shown in Figure 17, the embodiment shown in Figure 21 is provided with a resonant connection piece (also called a resonance line/tuning line) between two antenna units, and the resonant connection piece is Electronic components are placed in the opened gaps.

The equivalent inductance value of electronic components is related to the resonant frequency generated by the HWM of the antenna unit. For example, when the equivalent inductance value of the electronic component is small, the resonant frequency generated by the HWM of the antenna unit is higher, and vice versa. In one embodiment, by changing the equivalent inductance value of the electronic component, the equivalent inductance value of the resonant connection member can be made different, and the frequency of the resonance generated by the HWM of the antenna unit will shift. For example, when the electronic components are adjusted to reduce the inductance value of the equivalent inductance of the resonant connection, the frequency of the resonance generated by the HWM of the antenna unit will shift to a high frequency, while the frequency of the resonance generated by the OWM will not change basically. In one embodiment, when the frequency of the resonance generated by the HWM is higher than the frequency of the resonance generated by the OWM, the resonances generated by the two modes merge, for example, the two modes The two resonances are combined into one (S11 or S22), as shown in Figure 22.

It should be understood that when the resonant connector does not have a gap (no electronic components are electrically connected), the equivalent inductance value of the resonant connector can be set accordingly by setting the length, width and thickness of the resonant connector, so that the antenna unit The HWM produces a resonance frequency at the target frequency/band.

When two antenna units feed electrical signals at the same time, the isolation (S12 or S21) between the two antenna units is below -20dB, as shown in Figure 22.

Please refer to Figure 23. For ease of understanding, the relative positions of the antenna structure shown in Figure 23, and the relative positions of the feed position and the ground position on the radiator are the same or similar to the antenna structure shown in Figure 21. As shown in Figure 23, when the first antenna unit feeds an electrical signal, the mode current is mainly concentrated on the radiator of the first antenna unit. In one embodiment, the mode current is co-generated at the radiator of the first antenna element and at the floor adjacent thereto. The mode currents generated by the first resonant mode and the second resonant mode on the radiator of the second antenna unit cancel each other, and the current of the second antenna unit is weaker. In one embodiment, on the floor near the radiator of the second antenna unit, the mode currents generated by the first resonant mode and the second resonant mode cancel each other, and the floor current on this side is weaker.

Similarly, as shown in Figure 24, when the second antenna unit feeds an electrical signal, the mode current is mainly concentrated on the radiator of the second antenna unit. In one embodiment, the mode current is co-generated on the radiator of the second antenna unit and on the floor adjacent thereto. The mode currents generated by the first resonant mode and the second resonant mode on the radiator of the first antenna unit cancel each other, and the current of the first antenna unit is weaker. In one embodiment, on the floor near the radiator of the first antenna unit, the mode currents generated by the first resonant mode and the second resonant mode cancel each other, and the floor current on this side is weaker.

Therefore, there is good isolation between the first antenna unit and the second antenna unit. Moreover, it can be seen from the above analysis that the isolation between the connected first antenna unit and the second antenna unit has little relationship with the physical distance between the two radiators. For example, it does not show a positive or negative correlation.

Figure 25 is a schematic diagram of an electronic device 200 provided by an embodiment of the present application.

As shown in FIG. 25 , the electronic device 200 may include a first antenna unit 210 , a second antenna unit 220 , a floor 230 , a resonant connection 240 and a first electronic component 241 .

Wherein, the first antenna unit 210 may include a first radiator 211 and a first feeding unit 212. The first radiator 211 includes a first feed point 213, and the first feed unit 212 is coupled (eg, spaced coupling or electrically connected) with the first radiator 211 through the first feed point 213.

The second antenna unit 220 may include a second radiator 221 and a second feeding unit 222. The second radiator 221 includes a second feed point 223, the second feed unit 222 is coupled (eg, spaced coupling or electrically connected) to the second radiator 221 through the second feed point 223, and the first feed unit 212 is The second feeding unit 222 is different. In one embodiment, the first feeding unit 212 and the second feeding unit 222 are different, which can be understood as the electrical signal generated by the first feeding unit 212 and the electrical signal generated by the second feeding unit 222 are different, not by The same feed source is generated through the feed network. For example, the first power feeding unit 212 and the second power feeding unit 222 may be different radio frequency channels of the same power chip.

It should be understood that in the technical solutions provided by the embodiments of this application, electrical connection (direct coupling) is used as an example for explanation. In actual design or production, indirect coupling can also be used instead, and the same technical effect can be obtained. This application does not limit this. In an embodiment in which the first feeding unit 212 is indirectly coupled to the first radiator 211 through the first feeding point 213, the first feeding point 213 can be understood as the surface of the first radiating body 211 opposite to the feeding structure. to face) area. The "indirect coupling" in the embodiments of this application should be understood in the same or similar way.

It should be understood that the difference between the first feeding unit 212 and the second feeding unit 222 can be understood as different radio frequency channels in the radio frequency chip. The frequency of the first electrical signal fed by the first feeding unit 212 and the second electrical signal fed by the second feeding unit 222 may be the same or different. In one embodiment, the first electrical signal fed by the first feeding unit 212 and the second electrical signal fed by the second feeding unit 222 have the same frequency, and the first antenna unit 210 and the second antenna unit 220 can serve as The sub-units in the MIMO system all have working frequency bands including the first frequency band and simultaneously receive or transmit electrical signals in the first frequency band. Alternatively, the first antenna unit 210 serves as a transmitting unit and the second antenna unit 220 serves as a receiving unit. In one embodiment, the first electrical signal fed by the first feeding unit 212 and the second electrical signal fed by the second feeding unit 222 have different frequencies, and the first antenna unit 210 and the second antenna unit 220 may serve as Two independent antenna units transmit or receive electrical signals in different frequency bands.

The first end of the resonant connection member 240 is electrically connected to the first radiator 211 , and the second end is electrically connected to the second radiator 221 .

In one embodiment, the resonant connection member 240 may be disposed between the first radiator 211 and the second radiator 221 . It should be understood that The resonant connector 240 may be disposed coplanarly with the first radiator 211 and the second radiator 221. In one embodiment, the first radiator 211, the second radiator 221 and the resonant connector 240 are disposed on the same bracket. Alternatively, the resonant connection 240 may be provided on the PCB. In one embodiment, both ends of the resonant connector 240 can be electrically connected to the first radiator 211 and the second radiator 221 through elastic pieces. It should be understood that the resonant connecting member 240 and the radiator may be made of the same or different materials, and may be formed integrally or separately. In one embodiment, the resonant connector 240 has a smaller width/thickness than the radiator. In one embodiment, the resonant connection member 240 is linear relative to the radiator, for example, the length of the resonant connection member 240 is greater than 5 times its width.

The first end of the first electronic component 241 is electrically connected to the resonant connector 240 , and the second end is grounded (grounding can be understood as coupling to the floor 230 at this position, and can also be understood accordingly in the following embodiments), for example, by connecting to the floor 230 The electrical connection provides grounding, and coupling to floor 230 , for example via a grounding piece.

The first end 2111 of the first radiator 211 is grounded, and the second end 2212 of the second radiator 221 is grounded. The first radiator 211 and the second radiator 221 are juxtaposed, and the first end 2111 of the first radiator 211 and the second end 2212 of the second radiator 221 are ground ends provided on opposite sides.

In one embodiment, the projection of the first radiator 211 on the plane of the floor 230 is the first projection, and the projection of the second radiator 221 on the plane of the floor 230 is the second projection. The first projection and the second projection are Extend (eg, parallel) in a first direction (eg, y direction) and at least partially overlap in a second direction (eg, x direction), the second direction being perpendicular to the first direction. In one embodiment, the first radiator 211 and the second radiator 221 are arranged in parallel and not collinearly. In one embodiment, the first radiator 211 and the second radiator 221 are arranged coplanarly.

It should be understood that the direction of the first radiator 211 from the ground end to the open end is the third direction, and the direction of the second radiator 221 from the ground end to the open end is the fourth direction. The above-mentioned first projection and second projection being parallel in the first direction (for example, y direction) can be understood to mean that the third direction is parallel to the fourth direction. In the following embodiments, the parallelism between projections and the perpendicularity between projections can also be the parallelism or perpendicularity between the directions of the corresponding radiators from the ground end to the open end.

In one embodiment, the distance between the first end 2111 of the first radiator 211 and the second end 2212 of the second radiator 221 is greater than the distance between the first end 2111 of the first radiator 211 and the second end of the second radiator 221 . The distance between one end 2211, the ground terminal of the first radiator 211 and the ground terminal of the second radiator 221 are ground terminals provided on opposite sides. In one embodiment, the ground end of the first radiator 211 and the ground end of the second radiator 221 are far away from each other.

It should be understood that the radiator of the first antenna unit 210 and the radiator of the second antenna unit 220 are arranged in parallel, and the ground end (first end) of the first antenna unit 210 and the ground end (second end) of the second antenna unit 220 are ) are located on opposite sides, and the first antenna unit 210 and the second antenna unit 220 belong to a strongly coupled antenna structure.

In one embodiment, the resonant frequency generated by the OWM is related to the equivalent capacitance value of the first electronic component 241 . In one embodiment, the resonant frequency generated by HWM is substantially independent of the equivalent capacitance value of the first electronic component 241 .

It should be understood that when mentioned in the embodiments of this application, frequency is "related" to an element, it can be understood that the equivalent value (for example, equivalent capacitance value or equivalent inductance value) of the element affects the resonant frequency, and/or the size of the element. Does it affect the resonant frequency? That is to say, by selecting appropriate components, the desired resonant frequency can be obtained, or in other words, the resonant frequency brought about by the presence or absence of the component can cover a completely different frequency range before and after the change, which is called "correlation".

It should be understood that the frequency mentioned in the embodiments of this application is "basically irrelevant" to the component can be understood to mean that the equivalent value (for example, equivalent capacitance value or equivalent inductance value) of the component does not basically affect the frequency generated by OWM. The resonant frequency and/or the presence or absence of components basically does not affect the resonant frequency generated by OWM. Basically not affecting the resonant frequency can be understood as the resonant frequency can cover at least part of the same frequency range before and after the change, which is called "basically irrelevant".

The equivalent capacitance value of the first electronic component 241 is related to the resonant frequency generated by the OWM of the antenna unit. For example, when the equivalent capacitance value of the electronic component is larger, the resonant frequency generated by the OWM of the antenna unit is lower, and vice versa. In one embodiment, by changing the equivalent capacitance value of the first electronic component 241, the frequency of the resonance generated by the OWM of the antenna unit moves. For example, when the first electronic component 241 is adjusted to increase the capacitance value of its equivalent capacitance, the frequency of the resonance generated by the OWM of the antenna unit will shift to a low frequency, while the frequency of the resonance generated by the HWM will not change substantially. When the frequency of the resonance generated by the HWM is higher than the frequency of the resonance generated by the OWM, the resonances generated by the two modes merge, for example, the two resonances merge into one.

By means of the resonant connection 240 arranged between the first radiator 211 and the second radiator 221 and the first electronic component 241 between the resonant connection 240 and the floor 230, the first antenna unit 210 and the second antenna unit 210 can be adjusted respectively. The frequency of the resonance produced by the first resonant mode (eg, HWM) of the antenna unit 220 and the frequency of the resonance produced by the second resonant mode (eg, OWM). make the first resonance The resonant frequency band of the mode and the resonant frequency band of the second resonant mode are at the same frequency, and the mode current of the first resonant mode and the mode current of the second resonant mode are used to cancel each other, so as to improve the connection between the first antenna unit 210 and the second antenna unit 220 Isolation. It should be understood that the first radiator 211 and the second radiator 221 can be used to jointly generate the first resonance and jointly generate the second resonance.

When the first antenna unit 210 feeds an electrical signal, the current distribution corresponding to the first resonance mode is approximately as shown in (a) of Figure 12 , and the current distribution corresponding to the second resonance mode is approximately as shown in (b) of Figure 12 Show. In the first resonant mode and the second resonant mode, the mode currents on the floor on one side of the first radiator 211 and the first antenna unit 210 are in the same direction, while the mode currents on the floor on one side of the second radiator 221 and the second antenna unit 220 are in the same direction. Mode current is reversed. When the resonant frequency band produced by the first resonant mode and the resonant frequency band produced by the second resonant mode are of the same frequency, the resonant frequency band produced by the first resonant mode and the second resonant mode is on the floor on one side of the second radiator 221 and the second antenna unit 220 The mode currents cancel each other out. When the first antenna unit 210 feeds an electrical signal, the mode current is mainly concentrated on the floor and the first radiator 211 on one side of the first antenna unit 210 . Similarly, when the second antenna unit 220 feeds an electrical signal, the mode current is mainly concentrated on the floor and the second radiator 221 on one side of the second antenna unit 220 .

Therefore, there may be good isolation between the first antenna unit 210 and the second antenna unit 220. When the operating frequency band of the first antenna unit 210 and the operating frequency band of the second antenna unit 220 are the same frequency, the first antenna unit 210 and the second antenna unit 220 may be applied to the MIMO system.

In one embodiment, the electronic device 200 may also include a second electronic component 242 . The resonant connection 240 may include a gap 243 within which the second electronic component 242 may be disposed. In one embodiment, the second electronic component 242 is connected in series to the resonant connection 240 through the gap 243 . In one embodiment, two ends of the second electronic component 242 are electrically connected to the resonant connectors 240 on both sides of the gap respectively.

In one embodiment, the resonant frequency generated by the first resonant mode (eg, HWM) is related to the equivalent inductance value of the second electronic component 242 . In one embodiment, the resonant frequency generated by the second resonant mode (eg, OWM) is substantially independent of the equivalent inductance value of the second electronic component 242 .

In one embodiment, the first electronic component 241 may be a capacitor or an inductor.

In one embodiment, the second electronic component 242 may be a capacitor or an inductor.

It should be understood that the resonant connection member 240 can be equivalent to an inductor, and the inductance value of its equivalent inductance is related to the length, width and thickness of the resonant connection member 240 . The equivalent inductance value of the resonant connector 240 is also related to the second electronic component 242 , or in other words, the resonance frequency corresponding to the first resonance mode is related to the length, width, and thickness of the resonant connector 240 and the second electronic component 242 . For example, when the second electronic component 242 is a capacitor (the inductance value of the equivalent inductance of the resonant connector decreases), the resonance frequency corresponding to the first resonance mode is higher, and when the second electronic component 241 is an inductor (the resonant connector decreases) When the inductance value of the equivalent inductance increases), the frequency of the resonance corresponding to the first resonance mode is lower.

The first electronic component 241 between the floor 230 and the resonant connection 240 is related to the second resonant mode of the antenna unit (eg OWM). For example, when the first electronic component 241 is a capacitor, the resonance frequency corresponding to the second resonance mode is lower. When the first electronic component 241 is an inductor, the resonance frequency corresponding to the second resonance mode is higher.

In one embodiment, the first end of the resonant connection member 240 is located between the first end of the first radiator 211 and the midpoint of the first radiator 211 , and the midpoint may be the geometric center of the first radiator 211 . The distance between the point and the first end and the second end of the first radiator 211 is the same, and the following midpoint can also be understood accordingly.

In one embodiment, the second end of the resonant connection 240 is located between the second end of the second radiator 221 and the midpoint of the second radiator 221 .

In one embodiment, the electrical length of the first radiator 211 may be one-quarter of the first wavelength, and the first wavelength may be a wavelength corresponding to the resonant frequency of the first antenna unit 210, for example, it may be a resonance point or resonance. The wavelength corresponding to the center frequency of the frequency band.

In one embodiment, the electrical length of the second radiator 221 may be one-quarter of the second wavelength, and the second wavelength may be a wavelength corresponding to the resonant frequency of the second antenna unit 220 .

In one embodiment, the electrical length E1 of the first radiator 211 and the electrical length E2 of the second radiator 221 satisfy: E1×80%≤E2≤E1×120%.

It should be understood that the electrical lengths of the radiator of the first antenna unit 210 and the radiator of the second antenna unit 220 should be approximately the same, so that the operating frequency band of the first antenna unit 210 and the operating frequency band of the second antenna unit 220 are the same. The antenna unit 210 and the second antenna unit 220 may serve as sub-units in the MIMO system.

It should be understood that the physical length and electrical length of the radiator are related. In one embodiment, the physical length of the first radiator 211 The physical length L2 of L1 and the second radiator 221 satisfies: L1×80%≤L2≤L1×120%.

In one embodiment, the first radiator 211 and the second radiator 221 are juxtaposed. In one embodiment, the projection of the first radiator 211 on the floor (first projection) and the projection of the second radiator 221 on the floor (second projection) may be at least partially along the second direction (eg, x direction). coincide. As shown in FIG. 26 , the first radiator 211 and the second radiator 221 are arranged in parallel and non-collinearly and only partially overlap along the second direction. For example, the first radiator 211 and the second radiator 221 are arranged in the first direction (for example, , there is a certain dislocation in the y direction). In one embodiment, the length L3 of the overlapping portion of the projection of the first radiator 211 on the floor (the first projection) and the projection of the second radiator 221 on the floor (the second projection) in the second direction is the same as the length L3 of the first radiator. The length of projection L4 satisfies: L4×80%≤L3.

In the embodiment of the present application, since the radiator does not necessarily have a regular shape, the length of the projection of the radiator on the floor can be understood as the length of the ground end and the open end of the radiator in the extension direction of the radiator.

It should be understood that as the overlapping portion of the first projection and the second projection along the second direction becomes larger and larger, their radiation performance becomes better and better. The performance is optimal when the first projection and the second projection are completely coincident along the second direction. It should also be understood that as the overlapping portion of the first projection and the second projection along the second direction becomes larger and larger, the space occupied by the first radiator 211 and the second radiator 221 becomes smaller and the structure becomes more compact.

In one embodiment, the first feeding unit 212 of the first antenna unit 210 may be electrically connected to the first radiator 211 on a side close to the ground end of the first radiator 211, and the first radiator 211 may be a linear radiator. (For example, the length is three times or more than the width), the first antenna unit 210 may be an inverted F antenna (IFA), or the first radiator 211 may be a sheet radiator (for example, the length (less than three times the width), the first antenna unit 210 may be a planner inverted F antenna (PIFA). Alternatively, in one embodiment, the first feeding unit 212 of the first antenna unit 210 may be electrically connected to the first radiator 211 on a side close to the open end of the first radiator 211 . In one embodiment, the second antenna unit 220 may also be any of the above antenna types.

In one embodiment, the distance between the first radiator 211 and the second radiator 221 is less than 5 mm. The first antenna unit 210 and the second antenna unit 220 can be arranged compactly inside the electronic device, saving internal space. It should be understood that when the first radiator 211 and the second radiator 221 are sheet radiators (for example, the length is less than three times the width), the width of the radiator can be adjusted according to the width of the radiator (it can be understood that the radiator is in the second direction). The distance between the first radiator 211 and the second radiator 221 can be further reduced. In one embodiment, the distance between the first radiator 211 and the second radiator 221 is less than 2 mm.

In one embodiment, the first radiator 211 may be a part of the frame 11 of the electronic device. As shown in FIG. 27 , this part of the frame 11 is a conductive frame. In one embodiment, the first radiator 211 may also be a conductor (for example, liquid crystal polymer (LCP)) inside the frame 11 of the electronic device, and this part of the frame 11 is a non-conductive frame. For example, the frame 11 has a first position and a second position. A gap is provided at the first position, and the second position is electrically connected to the floor. The frame between the first position and the second position is the first frame, and the first frame can be used as the third frame. A radiator 211. In one embodiment, the second radiator 221 may be disposed inside the frame 11 or on the surface of the bracket.

In one embodiment, the first radiator 211 and the second radiator 221 may be disposed on the back cover of the electronic device. For example, the first radiator 211 and the second radiator 221 may be part of a conductive back cover, or may be disposed on a non-conductive back cover. Surface or interior of the back cover.

In one embodiment, the first radiator 211 and the second radiator 221 may be disposed on a bracket in the electronic device, for example, respectively disposed on different bracket bodies, or coplanarly disposed on the same bracket body.

It should be understood that the embodiments of the present application do not limit the layout of the first antenna unit and the second antenna unit inside the electronic device, and can be adjusted according to actual production design needs.

FIG. 28 is a schematic structural diagram of an electronic device 300 provided by an embodiment of the present application.

As shown in FIG. 28 , the electronic device 300 may include a first antenna unit 310 , a second antenna unit 320 , a third antenna unit 330 , a floor 340 , a first resonant connection 351 , a second resonant connection 352 , and a first electronic component. 361 and the second electronic component 362.

Wherein, the first antenna unit 310 may include a first radiator 311 and a first feeding unit 312. The first radiator 311 includes a first feed point 313 , and the first feed unit 312 and the first radiator 311 are electrically connected at the first feed point 313 .

The second antenna unit 320 may include a second radiator 321 and a second feeding unit 322. The second radiator 321 includes a second feed point 323 , and the second feed unit 322 and the second radiator 321 are electrically connected at the second feed point 323 .

The third antenna unit 330 may include a third radiator 331 and a third feeding unit 332, and the second radiator 321 is located between the first radiator 311 and the third radiator 331. The third radiator 331 includes a third feed point 333 , and the third feed unit 332 and the third radiator 331 are electrically connected at the third feed point 333 .

The first feeding unit 312, the second feeding unit 322 and the third feeding unit 332 are different from each other. In one embodiment, the first feeding unit 312 and the second feeding unit 322 are different from the third feeding unit 332, which can be understood as the electrical signal generated by the first feeding unit 312 and the electrical signal generated by the second feeding unit 322. The electrical signal is different from the electrical signal generated by the third feeding unit 332 and is not generated by the same feed source through the feeding network. For example, the first feeding unit 312, the second feeding unit 322 and the third feeding unit 332 may be different radio frequency channels of the same power chip.

It should be understood that the second radiator 321 is located between the first radiator 311 and the third radiator 331. It can be understood that the second radiator 321 is spatially located between the first radiator 311 and the third radiator 331. The second radiator 321 is not necessarily coplanar with the first radiator 311 and the third radiator 331, and can be adjusted according to the actual design.

The first end of the first resonant connection member 351 is electrically connected to the first radiator 311 , and the second end is electrically connected to the second radiator 322 . The first end of the first electronic component 361 is electrically connected to the first resonant connection member 351, and the second end is grounded.

The first end of the second resonant connection member 352 is electrically connected to the second radiator 322 , and the second end is electrically connected to the third radiator 332 . The first end of the second electronic component 362 is electrically connected to the second resonant connection member 352, and the second end is grounded. The positions and implementation forms of the first resonant connection member 351 and the second resonant connection member 352 are similar to those in the previous embodiments and will not be described again.

The first end of the first radiator 311 is connected to the ground, the second end of the second radiator 321 is connected to the ground, and the first end of the third radiator 331 is connected to the ground. The first radiator 311 and the second radiator 321 are juxtaposed, and the first end of the first radiator 311 and the second end of the second radiator 321 are ground ends provided on opposite sides. The third radiator 331 and the second radiator 321 are juxtaposed, and the first end of the third radiator 331 and the second end of the second radiator 321 are ground ends provided on opposite sides.

In one embodiment, the first radiator 311 and the second radiator 321 are juxtaposed.

In one embodiment, the projection of the first radiator 311 on the plane of the floor 340 is the first projection, and the projection of the second radiator 321 on the plane of the floor 340 is the second projection. The first projection and the second projection are They are parallel in a first direction (eg, y direction) and at least partially overlap in a second direction (eg, x direction), and the second direction is perpendicular to the first direction. In one embodiment, the first radiator 311 and the second radiator 321 are arranged in parallel and not collinearly. In one embodiment, the first radiator 311 and the second radiator 321 are arranged coplanarly.

In one embodiment, the second radiator 321 and the third radiator 331 are juxtaposed.

In one embodiment, the third projection is the projection of the third radiator 331 on the plane where the floor 340 is located. The second projection and the third projection are parallel in the first direction (for example, y direction), and are in the second direction ( For example, at least partially overlap in the x direction). In one embodiment, the second radiator 321 and the third radiator 331 are arranged in parallel and not collinearly. In one embodiment, the second radiator 321 and the third radiator 331 are arranged coplanarly.

In one embodiment, the ground terminal of the first radiator 311 and the ground terminal of the second radiator 321 are ground terminals provided on opposite sides. The distance between the first end of the first radiator 311 and the second end of the second radiator 321 is greater than the distance between the first end of the first radiator 311 and the first end of the second radiator 321 . In one embodiment, the ground end of the first radiator 311 and the ground end of the second radiator 321 are far away from each other.

In one embodiment, the ground terminal of the third radiator 331 and the ground terminal of the second radiator 321 are ground terminals provided on opposite sides. The distance between the first end of the third radiator 331 and the second end of the second radiator 321 is greater than the distance between the first end of the third radiator 331 and the first end of the second radiator 2321 . In one embodiment, the ground end of the third radiator 331 and the ground end of the second radiator 321 are far away from each other. The ground end of the third radiator 331 and the ground end of the first radiator 311 are close to each other and are arranged on the same side.

It should be understood that the antenna structure composed of the first antenna unit, the second antenna unit and the third antenna unit shown in Fig. 28 is composed of the antenna structure composed of the first antenna unit and the second antenna unit shown in Fig. 25 The difference in the antenna structure is the addition of a third antenna unit. The technical solutions provided by the embodiments of this application can also be applied to antenna structures including three or more antenna units. The number of antenna units is not limited and can be set according to actual production or design needs.

The radiator of the first antenna unit 310, the radiator of the second antenna unit 320 and the radiator of the third antenna unit 330 are arranged in parallel. The ground end (first end) of the first antenna unit 310 and the ground end (second end) of the second antenna unit 320 are located on opposite sides. The first antenna unit 310 and the second antenna unit 320 belong to a strongly coupled antenna structure. The ground end (second end) of the second antenna unit 320 and the ground end (first end) of the third antenna unit 330 are located on opposite sides. The second antenna unit 320 and the third antenna unit 330 belong to a strongly coupled antenna structure.

By means of resonant connections disposed between the radiators of adjacent antenna units and electronic components connected in parallel between the resonant connections and the floor 240 , the resonances generated by the first resonant mode (e.g., HWM) of the antenna units can be individually adjusted. frequency and second resonant mode (e.g. For example, the frequency of resonance produced by OWM). The resonant frequency band of the first resonant mode and the resonant frequency band of the second resonant mode are made to have the same frequency, and the mode current of the first resonant mode and the mode current of the second resonant mode are used to cancel each other to improve the isolation between adjacent antenna units.

At the same time, between two separated antenna units (for example, the first antenna unit 310 and the third antenna unit 330), due to the ground end (first end) of the first antenna unit 310 and the ground end (first end) of the third antenna unit 330 ( The first end) is located on the same side, and a weakly coupled antenna structure similar to that shown in (a) in Figure 10 can be formed between the two antenna units. The isolation between antenna units is mainly determined by the distance between the antenna units. Since the antenna units with ground terminals on the same side are spaced apart, two antenna units with ground terminals on the same side are provided with antennas with ground terminals on opposite sides. Therefore, sufficient spacing can be maintained between antenna units with ground terminals on the same side so that there can be good isolation between antenna units.

In one embodiment, the first radiator 311 and the second radiator 321 are linear radiators (for example, the length is three times or more than the width), and the distance between the first radiator 311 and the second radiator 321 is Less than 5mm. In one embodiment, the third radiator 331 is a linear radiator (for example, the length is three times or more than the width), and the distance between the second radiator 321 and the third radiator 331 is less than 5 mm. In one embodiment, the first radiator 311 and the second radiator 321 are sheet-shaped radiators (for example, the length is less than three times the width), and the distance between the first radiator 311 and the second radiator 321 is less than 2mm. In one embodiment, the third radiator 331 is a sheet radiator (for example, the length is less than three times the width), and the distance between the second radiator 321 and the third radiator 331 is less than 2 mm. The first antenna unit 310, the second antenna unit 320 and the third antenna unit 330 can be arranged compactly inside the electronic device, saving internal space.

It should be understood that the distance between the first radiator 311 and the second radiator 321 and/or the distance between the second radiator 321 and the third radiator 331 can be understood as the distance between points on adjacent radiators. The minimum straight-line distance between

In one embodiment, the electronic device 300 may further include third electronic components 363 and fourth electronic components 364 . The first resonant connection part 351 and the second resonant connection part 352 may have a gap. The third electronic component 363 can be disposed in the gap of the first resonant connector 351 and connected in series between the first resonant connectors 351 on both sides of the gap. The two ends of the third electronic component 363 are respectively connected with the first resonant connectors on both sides of the gap. The connector 351 is electrically connected. The fourth electronic component 364 can be disposed in the gap of the second resonant connecting member 352 and connected in series between the second resonating connecting members 352 on both sides of the gap. The two ends of the fourth electronic component 364 are respectively connected with the second resonant connecting members on both sides of the gap. The connector 352 is electrically connected.

It should be understood that in actual applications, the third electronic component 363 and the fourth electronic component 364 may not exist at the same time, and may be adjusted according to actual design or production needs. In one embodiment, the electronic device 300 may include only the third electronic component, or the electronic device 300 may include both the third electronic component 363 and the fourth electronic component 364.

Similarly, in actual applications, the first electronic component 361 and the second electronic component 362 may not exist at the same time, and may be adjusted according to actual design or production needs. In one embodiment, the electronic device 300 may include only the first electronic component 361, or the electronic device 300 may include both the first electronic component 361 and the second electronic component 362.

The effects of the resonant connector, the electronic components connected in series with the resonant connector, and the electronic components connected in parallel on the resonance mode are the same or similar to those in the previous embodiments, and will not be described again.

In one embodiment, the first end of the first resonant connection 351 is located between the first end of the first radiator 311 and the midpoint of the first radiator 311 . In one embodiment, the second end of the first resonant connection 351 is located between the second end of the second radiator 321 and the midpoint of the second radiator 321 .

In one embodiment, the first end of the second resonant connection 352 is located between the first end of the third radiator 331 and the midpoint of the third radiator 331 . In one embodiment, the second end of the second resonant connection 352 is located between the second end of the second radiator 321 and the midpoint of the second radiator 321 .

The electrical length is the same as or similar to the previous embodiment and will not be described again.

In one embodiment, the physical length L1 of the first radiator 311 and the physical length L2 of the second radiator 321 satisfy: L1×80%≤L2≤L1×120%.

In one embodiment, the physical length L3 of the third radiator 331 and the physical length L2 of the second radiator 321 satisfy: L3×80%≤L2≤L3×120%.

It should be understood that the electrical length/physical length of the radiator of the first antenna unit 310, the radiator of the second antenna unit 320 and the radiator of the third antenna unit 330 should be approximately the same, so that the operating frequency band of the first antenna unit 310, The working frequency band of the second antenna unit 320 is the same as the working frequency band of the third antenna unit 330. The first antenna unit 310, the second antenna unit 320 and the third antenna unit 330 can be used as sub-units in the MIMO system.

In one embodiment, two adjacent radiators may be juxtaposed. In one embodiment, two adjacent radiators may be arranged in parallel and not collinearly. In one embodiment, two adjacent radiators may be disposed coplanarly. In one embodiment, two adjacent radiators can be arranged as shown in the embodiment of Figure 26, which will not be described again.

In one embodiment, the first radiator 311 may be a linear radiator, and the first antenna unit 310 may be an IFA, or the first radiator 311 may be a sheet radiator, and the first antenna unit 310 may be a PIFA. In one embodiment, the second antenna unit 320 or the third antenna unit 330 may also be any of the above antenna types.

The implementation form and location of the radiator in the electronic device are the same as or similar to the previous embodiments and will not be described again.

Figures 29 to 32 are simulation results of the antenna unit shown in Figure 28. Among them, Figure 29 is the S parameter of the antenna unit shown in Figure 28. Figure 30 is the radiation efficiency and system efficiency of the antenna unit shown in Figure 28. Figure 31 is a schematic diagram of the electric field distribution of the antenna unit shown in Figure 28. Fig. 32 is a directional diagram of the antenna unit shown in Fig. 28.

The frequencies of the resonances generated by the first resonant mode and the second resonant mode of the antenna units can be adjusted respectively by resonant connectors disposed between the radiators of adjacent antenna units and electronic components connected in parallel between the resonant connectors and the floor. , so that the resonant frequency band of the first resonant mode and the resonant frequency band of the second resonant mode are at the same frequency, then the resonant frequency bands generated by the two modes are combined into one. As shown in Figure 29, the first antenna unit, the second antenna unit and the third antenna unit generate a resonance near 4G (with S11/S22/S33≤-5dB as the limit). Furthermore, the isolation between the first antenna unit and the third antenna unit (separated antenna units) is less than -15dB. The isolation between the first antenna unit and the second antenna unit and the second antenna unit and the third antenna unit (adjacent antenna units) is less than -20 dB.

As shown in Figure 30, the efficiency (system efficiency and radiation efficiency) of the first antenna unit, the second antenna unit and the third antenna unit can all meet the communication needs in the resonant frequency band.

As shown in (a), (b) and (c) in Figure 31, when the first feeding unit feeds power, when the second feeding unit feeds power and when the third feeding unit feeds power, the corresponding Schematic diagram of electric field distribution. As shown in Figure 31, since the mode currents on the radiators of adjacent antenna units cancel when the antenna unit is fed, the electric fields are concentrated on the radiator of the antenna unit feeding the electrical signal and the corresponding floor area. , and can form better isolation from adjacent antenna units.

As shown in (a), (b) and (c) in Figure 32, when the first feeding unit feeds power, the second feeding unit feeds power and the third feeding unit feeds power, the Directional diagram, the maximum radiation direction is in the z direction (perpendicular to the direction of the floor).

FIG. 33 is a schematic structural diagram of another electronic device 300 provided by an embodiment of the present application.

As shown in Figure 33, the difference from the antenna structure composed of the first antenna unit 310, the second antenna unit 320 and the third antenna unit 330 shown in Figure 28 is that a fourth antenna unit 350 and a fifth antenna unit are added. 360, and a resonant connection disposed between the third antenna unit 330 and the fourth antenna unit 350, the fourth antenna unit 350 and the fifth antenna unit 360. The technical solutions provided by the embodiments of this application can also be applied to antenna structures including three or more antenna units. The number of antenna units is not limited and can be adjusted according to actual production or design needs.

As shown in FIG. 33 , the radiator of the first antenna unit 310 , the radiator of the second antenna unit 320 , the radiator of the third antenna unit 330 , the radiator of the fourth antenna unit 350 and the radiator of the fifth antenna unit 360 Juxtaposition on the floor. The ground terminal of the radiator of the first antenna unit 310 , the ground terminal of the radiator of the second antenna unit 320 , the ground terminal of the radiator of the third antenna unit 330 , the ground terminal of the radiator of the fourth antenna unit 350 and the fifth The ground terminals of the radiators of the antenna unit 360 are arranged in a staggered manner, and between adjacent ground terminals are ground terminals provided on opposite sides. The ground terminal of the radiator of the first antenna unit 310, the ground terminal of the radiator of the third antenna unit 330, the ground terminal of the radiator of the fifth antenna unit 360 are arranged on the same side, and the ground terminal of the radiator of the second antenna unit 320 is arranged on the same side. The ground terminals and the ground terminals of the radiator of the fourth antenna unit 350 are arranged on the same side, and the ground terminals arranged on the same side are between the separated ground terminals (one ground terminal apart).

Figures 34 to 38 are simulation results of the antenna unit shown in Figure 33. Among them, Figure 34 is the S11 simulation result of the antenna unit shown in Figure 33. Figure 35 is the isolation between the antenna elements shown in Figure 33. Figure 36 is the radiation efficiency and system efficiency of the antenna unit shown in Figure 33. Figure 37 is a schematic diagram of the electric field distribution of the antenna unit shown in Figure 33. Fig. 38 is a directional diagram of the antenna unit shown in Fig. 33.

As shown in Figure 34, the first antenna unit, the second antenna unit, the third antenna unit, the fourth antenna unit and the fifth antenna unit generate a resonant frequency band near 3.95GHz (based on S11/S22/S33/S44/S55≤ -5dB is the limit).

Moreover, as shown in FIG. 35 , the isolation between two antenna units separated by one antenna unit (for example, the first antenna unit and the third antenna unit (S31/S13)) is less than -15 dB. The isolation between two antenna units (for example, the first antenna unit and the fourth antenna unit (S41/S14)) that are two antenna units apart is less than -20 dB. The isolation between two antenna units that are three antenna units apart (for example, the first antenna unit and the fifth antenna unit (S51/S15)) is both less than -20 dB. The isolation between two adjacent antenna units (for example, the first antenna unit and the second antenna unit (S12/S21)) is less than -20 dB.

As shown in Figure 36, the efficiency (system efficiency and radiation efficiency) of the first antenna unit, the second antenna unit, the third antenna unit, the fourth antenna unit and the fifth antenna unit can meet the communication needs in the resonant frequency band.

As shown in (a), (b), (c), (d) and (e) in Figure 37, when the first feeding unit is feeding, when the second feeding unit is feeding, and when the third feeding unit is feeding, respectively Schematic diagram of the corresponding electric field distribution when the electric unit is feeding, when the fourth feeding unit is feeding, and when the fifth feeding unit is feeding. As shown in Figure 37, since the mode currents on the radiators of adjacent antenna units are offset when the antenna unit is fed, the electric fields are concentrated on the radiator of the antenna unit feeding the electrical signal and the corresponding floor. And can form better isolation from adjacent antenna units.

As shown in (a), (b), (c), (d) and (e) in Figure 38, they are respectively when the first feeding unit feeds power, when the second feeding unit feeds power, and when the third feeding unit feeds power. When the electric unit feeds, the fourth feeding unit feeds, and the fifth feeding unit feeds, the maximum radiation direction of the directional pattern generated is all in the z direction (perpendicular to the direction of the floor).

In the above embodiments, a strongly coupled antenna structure in which the radiators of the antenna unit are parallel and non-collinear is used as an example for explanation. In practical applications, the technical solution provided by the embodiments of the present application can also be applied to the radiator. The antenna units arranged in collinear form form a strongly coupled antenna structure.

It should be understood that in the embodiment of the present application, the resonances generated by the two modes of each antenna unit are merged, for example, the two resonances are combined into one to form a single resonance. In actual production or design, the resonance generated by the two modes may not appear as a single resonance, but as a resonance frequency band formed by the fusion of two resonances. For example, there are two resonance points in this resonance frequency band. The resonant frequency bands generated by multiple antenna units can be very close to each other. In fact, they can also be slightly far apart to meet the same frequency as defined in the embodiments of this application.

Figure 39 is a schematic diagram of an antenna structure provided by an embodiment of the present application.

As shown in Figure 39, the antenna structure includes two radiators serialized, or placed/arranged in series.

In one embodiment, series placement or series arrangement can be understood as two radiators placed in relatively close positions (for example, the distance between the radiators is less than 5 mm), with their ends facing each other (face to face) and mutually There is no contact, and the two radiators are generally arranged along the same straight line in the extending direction of the radiators. Among them, "disposed substantially along the same straight line" may mean that the extending directions of the main parts of the two radiators may be arranged substantially along the same straight line, but do not necessarily have to be arranged along the same straight line. For example, the first radiator extends in the X direction, and the second radiator extends in a direction within 10° of the X direction. Alternatively, the first radiator and the second radiator may be in a zigzag shape, and the extension direction of the main part of the radiator (for example, the length of the main part accounts for greater than or equal to 90% of the total length of the radiator) is substantially along the same straight line. All of the above can be seen as being set roughly along the same straight line.

In one embodiment, series placement or series arrangement can also be understood as two radiators extending in the first direction without overlapping in the second direction, where the second direction is perpendicular to the first direction, and the two radiators extend in the first direction without overlapping in the second direction. The radiators have at least partial overlap in the first direction.

In one embodiment, the projection of two radiators arranged in series or in series on the floor is arranged in series or in series. In one embodiment, the projections of two radiators arranged in series or arranged in series on the floor can be arranged along the same straight line. Specifically, the two radiators are collinear in the extension direction of the radiators. One end of each radiator is connected to the floor. For example, the black dot in the figure is the schematic ground point of the radiator.

In one embodiment, the two radiators are linear radiators, and the projection of the two radiators on the floor along the same straight line can be understood as the distance between the extension directions of the sides of the two radiators in the length direction. The included angle is in the range of 0 to 10°, or in the range of 170 to 180°. In one embodiment, the two radiators are sheet radiators, and the projection of the two radiators on the floor along the same straight line can be understood as any connection between the open end and the ground end of the two radiators. The included angle between the extending directions is in the range of 0 to 10°, or in the range of 170 to 180°.

It should be understood that two radiators spaced apart along the same straight line are connected to the same floor, and the two radiators and part of the floor together form a dipole antenna.

According to the eigenmode characteristics of the dipole antenna, as shown in (a) in Figure 39, two radiators can generate mode currents in the same direction. On the floor between the two radiators, there can be Generates pattern current. The mode current on the radiator will excite an induced current on the floor. According to the electromagnetic induction theorem, the mode current is opposite to the corresponding induced current. For a pattern current between two locations on the floor to have a component in the same direction as the induced current, the two can be superimposed. In one embodiment, the dotted line area on the floor is the current strong point area of the mode current and the induced current, indicating that the mode meets the boundary conditions and can exist. Therefore, the antenna structure as shown in Figure 39 can be excited. HWM.

It should be understood that for the boundary conditions, if there is a component with the same direction between the induced current generated by the antenna unit and the mode current, and there is no component with the opposite direction, the boundary condition is met.

Similarly, as shown in (b) in Figure 39, the radiators of the two antenna units can generate reverse mode currents, and the mode current can be generated on the floor between the two radiators. The mode current on the radiator will excite an induced current on the floor 120. According to the electromagnetic induction theorem, the mode current is opposite to the corresponding induced current. For the mode current between two locations on the floor 120, it has a component in the same direction as the induced current, and the two can be superimposed. In one embodiment, the dotted line area on the floor is the current zero point area of the mode current and the induced current, indicating that the mode meets the boundary conditions and can exist, so the antenna structure as shown in Figure 39 can excite OWM.

Therefore, for the antenna structure shown in Figure 39 (the radiators of the antenna units are arranged in series, and the ground terminals are on opposite sides), the isolation between the antenna units is mainly determined by the mode current of the two antenna units. The spatial distance between them has little impact on isolation. Since in this antenna structure, the coupling between the two antenna units is less related to the distance between them, the antenna structure can be considered as a strongly coupled antenna structure.

Figure 40 is a schematic structural diagram of an electronic device 500 provided by an embodiment of the present application.

As shown in FIG. 40 , the electronic device 500 includes a first antenna unit 510 , a second antenna unit 520 and a third antenna unit 530 .

The first antenna unit 510 includes a first radiator 511 and a first parasitic branch 512 . The second antenna unit 520 includes a second radiator 521 and a second parasitic branch 522 . The third antenna unit 530 includes a third radiator 531 and a third parasitic branch 532 . The second radiator 521 is located between the first radiator 511 and the third radiator 531 . The first radiator 511 , the second radiator 521 and the third radiator 531 are juxtaposed. The ground terminal (first end) of the first radiator 511 and the ground terminal (first end) of the third radiator 531 are ground terminals provided on the same side. The ground terminal of the first radiator 511 and the ground terminal of the third radiator 531 are ground terminals provided on opposite sides.

It should be understood that the first radiator 511 and the first parasitic branch 512 are juxtaposed, and the ground terminals of the first radiator 511 and the first parasitic branch 512 are ground terminals provided on opposite sides, forming a strongly coupled antenna structure. The first parasitic branch 512 generates resonance through the electrical signal fed by the first radiator 511 to expand the operating frequency band of the first antenna unit 510 .

It should be understood that the antenna structure composed of the first antenna unit 510, the second antenna unit 520 and the third antenna unit 530 shown in Figure 40 is different from the first antenna unit 310, the second antenna unit 320 and the third antenna unit shown in Figure 28. The difference in the antenna structure composed of three antenna units 330 is that the first antenna unit 310, the second antenna unit 320 and the third antenna unit 330 respectively add parasitic branches to expand the operating frequency band of the antenna unit.

In one embodiment, the first radiator 511 is located between the first parasitic stub 512 and the second radiator 521 . The projection of the first parasitic branch 512 on the plane of the floor 540 and the projection of the first radiator 511 on the plane of the floor 540 are parallel to each other in the first direction (for example, the y direction), and are parallel to each other in the second direction (for example, the x direction). direction) at least partially overlap. The distance between the first end (ground end) of the first radiator 511 and the second end (ground end) of the first parasitic branch 512 is greater than the distance between the first end of the first radiator 511 and the first end of the first parasitic branch 512 . distance between ends.

At the same time, the first radiator 511, the first parasitic branch 512 and part of the floor can form a dipole antenna, and two resonances can be generated by HWM and OWM respectively. The relative positional relationship between the first radiator 511 and the first parasitic branch 512 (for example, the distance between the first radiator 511 and the first parasitic branch 512) is related to the frequency of resonance generated by HWM and OWM.

In one embodiment, the second parasitic branch 522 and the second radiator 521 are arranged in series, and the ground terminal of the second parasitic branch 522 and the ground terminal of the second radiator 521 are ground terminals provided on opposite sides. In one embodiment, the first end of the second parasitic branch 522 is opposite to the first end of the second radiator 521 and does not contact each other, and the second end of the second parasitic branch is grounded. The projection of the second parasitic branch 522 on the plane of the floor 540 and the projection of the second radiator 521 on the plane of the floor 540 are arranged along the same straight line.

It should be understood that the second radiator 521 and the second parasitic branch 522 are arranged in series, and the ground terminals are arranged on opposite sides, forming a strongly coupled antenna structure. The second parasitic branch 522 resonates through the electrical signal fed by the second radiator 521 to expand the operating frequency band of the second antenna unit 520 .

At the same time, the second radiator 521, the second parasitic branch 522 and part of the floor can form a dipole antenna, and two resonances can be generated by HWM and OWM respectively. An inductor can be connected in series between the first end of the second parasitic branch 522 and the first end of the second radiator 521 or a capacitor connected in parallel with the floor can be set at this position to adjust the frequency of the resonance generated by the HWM and OWM. For example, when the inductance value of the inductor connected in series between the first end of the second parasitic branch 522 and the first end of the second radiator 521 decreases, the frequency of the resonance generated by the HWM shifts to a high frequency, while the frequency of the resonance generated by the OWM shifts to a high frequency. The frequency remains unchanged. When the capacitance value of the capacitor connected in parallel with the floor increases, the frequency of the resonance generated by the OWM shifts to low frequency while the frequency of the resonance generated by the HWM remains unchanged.

In one embodiment, the third radiator 531 is located between the third parasitic branch 532 and the second radiator 521 . The third parasitic branch 532 is juxtaposed with the third radiator 531. The ground terminal of the third parasitic branch 532 and the ground terminal of the third radiator 531 are provided on opposite sides. End of the earth. In one embodiment, the projection of the third parasitic branch 532 on the plane of the floor 540 and the projection of the third radiator 531 on the plane of the floor 540 are parallel to each other in the first direction (for example, the y direction), and are parallel to each other in the first direction (for example, the y direction). At least partially overlap in two directions (eg, x direction). The distance between the first end (ground end) of the third radiator 531 and the second end (ground end) of the third parasitic branch 532 is greater than the distance between the first end of the third radiator 531 and the first end of the third parasitic branch 532 . distance between ends.

It should be understood that the third radiator 531 and the third parasitic branch 532 are juxtaposed, and the ground terminals are arranged on opposite sides, forming a strongly coupled antenna structure. The third parasitic branch 532 generates resonance through the electrical signal fed by the third radiator 531 to expand the operating frequency band of the third antenna unit 530 .

For the sake of brevity, this application only takes the first antenna unit 510, the second antenna unit 520 and the third antenna unit 530 as examples that all include parasitic branches. In actual applications, it can be based on the internal layout of the electronic device. At least one antenna unit among the plurality of antenna units is provided with a parasitic branch, and a structure that forms a strong coupling between the parasitic branch and the radiator (for example, in series or juxtaposed) can be selected according to actual design requirements to expand the performance of the antenna unit. The working frequency band is not limited in the embodiments of this application.

Figures 41 to 44 are simulation results of the antenna unit shown in Figure 40. Among them, Figure 41 is the S parameter of the antenna unit shown in Figure 40. Figure 42 is the radiation efficiency and system efficiency of the antenna unit shown in Figure 40. Figure 43 is a schematic diagram of the electric field distribution of the antenna unit shown in Figure 40. Fig. 44 is a directional diagram of the antenna unit shown in Fig. 40.

As shown in Figure 41, due to the parasitic branches provided in the antenna unit, additional resonance can be generated. Therefore, the first antenna unit, the second antenna unit and the third antenna unit can generate two resonance frequency bands near 3.95GHz and 4.3GHz ( Take S11/S22/S33≤-5dB as the limit).

Moreover, as shown in FIG. 41 , the isolation between two separated antenna units (for example, the first antenna unit and the third antenna unit (S31/S13)) is less than -18 dB. The isolation between two adjacent antenna units (for example, the first antenna unit and the second antenna unit (S12/S21)) is less than -15dB.

As shown in Figure 42, the efficiency (system efficiency and radiation efficiency) of the first antenna unit, the second antenna unit and the third antenna unit can all meet the communication needs in the resonant frequency band.

As shown in (a) and (b) in Figure 43, when feeding the first feeding unit, the electric field reverses between the first antenna unit and the radiator directly on the HWM (radiator and parasitic) and OWM (radiator and parasitic). Schematic diagram of the electric field distribution corresponding to the resonance points of the two resonant frequency bands generated under the direct electric field (in the same direction). The electric field is mainly concentrated on the first radiator, the first parasitic branch and the corresponding floor area, and is connected with the adjacent antenna units. Can form better isolation.

As shown in (c) and (d) in Figure 43, when feeding the second feeding unit, the electric field is reversed directly on the second antenna unit in HWM (radiator and parasitic) and OWM (radiator and parasitic). Schematic diagram of the electric field distribution corresponding to the resonance points of the two resonant frequency bands generated under the direct electric field (in the same direction). The electric field is mainly concentrated on the second radiator, the second parasitic branch and the corresponding floor area, and is connected with the adjacent antenna unit. Can form better isolation.

As shown in (e) and (f) in Figure 43, when feeding the third feeding unit, the electric field reverses between the third antenna unit and the radiator directly on the HWM (radiator and parasitic) and OWM (radiator and parasitic). Schematic diagram of the electric field distribution corresponding to the resonance points of the two resonant frequency bands generated under the direct electric field (in the same direction). The electric field is mainly concentrated on the third radiator, the third parasitic branch and the corresponding floor area, and is connected with the adjacent antenna unit. Can form better isolation.

As shown in (a), (b), (c), (d), (e) and (f) in Figure 44, they are when the first feeding unit is feeding power and when the second feeding unit is feeding power. When feeding with the third feeding unit, the first antenna unit, the second antenna unit and the third antenna unit are in HWM (the radiator and the parasitic are directly connected to the electric field in the opposite direction) and OWM (the radiator and the parasitic are directly connected to the electric field in the same direction). In the pattern generated below, the maximum radiation directions are all in the z direction (perpendicular to the direction of the floor).

In the above embodiment, a structure in which strong coupling is formed between the radiators of adjacent antenna units is used as an example for explanation. In actual design, a structure in which weak coupling is formed between the radiators of adjacent antenna units can also be formed. The radiator and the corresponding parasitic branches form a strongly coupled structure to expand the bandwidth of the antenna unit.

Figure 45 is a schematic structural diagram of an electronic device 600 provided by an embodiment of the present application.

As shown in FIG. 45 , the electronic device 600 may include a first antenna unit 610 , a second antenna unit 620 and a floor 630 .

The first antenna unit 610 includes a first radiator 611, a first parasitic branch 612 and a first feeding unit 613. The first radiator 611 includes a first feed point 614, and the first feed unit 613 and the first radiator 611 are electrically connected at the first feed point 614.

It should be understood that in the technical solutions provided by the embodiments of the present application, electrical connection (direct coupling) is used as an example for explanation. In actual design or production, indirect coupling can also be used instead, and the same technical effect can be obtained. , this application does not limit this.

The second antenna unit 620 includes a second radiator 621 and a second feeding unit 623. The second radiator 621 includes a second feed point 624, The second feeding unit 623 and the second radiator 621 are electrically connected at the second feeding point 624, and the first feeding unit 613 is different from the second feeding unit 623. In one embodiment, the first feeding unit 613 and the second feeding unit 623 are different. It can be understood that the electrical signal generated by the first feeding unit 613 is different from the electrical signal generated by the second feeding unit 623. It is not caused by The same feed source is generated through the feed network. For example, the first feeding unit 613 and the second feeding unit 623 may be different radio frequency channels of the same power chip.

The first end of the first radiator 611 is connected to the ground, the first end of the second radiator 621 is connected to the ground, and the second end of the first parasitic branch 612 is connected to the ground. The ground terminal of the first radiator 611 and the ground terminal of the second radiator 621 are ground terminals arranged on the same side, and the ground terminal of the first radiator 611 and the ground terminal of the first parasitic branch 612 are ground terminals arranged on opposite sides.

In one embodiment, the first radiator 611 and the second radiator 621 are juxtaposed. In one embodiment, the projection of the first radiator 611 on the plane of the floor 630 (first projection) and the projection of the second radiator 621 on the plane of the floor 630 (the second projection) are in the first direction (for example, y direction) and at least partially overlap in a second direction (for example, x direction), the second direction being perpendicular to the first direction. The first radiator 611 and the second radiator 621 are arranged in parallel and not collinearly.

In one embodiment, the first radiator 611 and the first parasitic stub 612 are juxtaposed. In one embodiment, the first radiator 611 is located between the first parasitic branch 612 and the second radiator 621 . The projection of the first radiator 611 on the plane of the floor 630 (the first projection) and the projection of the first parasitic branch 612 on the plane of the floor 630 (the third projection) are parallel to each other in the first direction, and in the second direction overlap at least partially.

In one embodiment, the ground terminal of the first radiator 611 and the ground terminal of the second radiator 621 are ground terminals arranged on the same side, and the first end (ground terminal) of the first radiator 611 and the second radiator 621 The distance between the first end (ground end) of the first radiator 611 and the second end of the second radiator 621 is less than the distance between the first end (ground end) of the first radiator 611 and the second end of the second radiator 621 .

In one embodiment, the ground terminal of the first radiator 611 and the ground terminal of the first parasitic branch 612 are ground terminals arranged on opposite sides, and the first end (ground terminal) of the first radiator 611 and the first parasitic branch 612 The distance between the first ends of the first radiator 611 is smaller than the distance between the first end (ground end) of the first radiator 611 and the second end (ground end) of the first parasitic branch 612 .

It should be understood that the ground end of the first radiator 611 and the ground end of the second radiator 621 are arranged on the same side, forming a weak coupling structure. Therefore, the isolation between the first antenna unit 610 and the second antenna unit 620 is mainly determined by the distance between the first radiator 611 and the second radiator 621 . At the same time, the ground end of the first radiator 611 and the ground end of the first parasitic branch 612 are arranged on opposite sides to form a strong coupling structure. The first parasitic branch 612 resonates through the electrical signal fed by the first radiator 611 to expand the The operating frequency band of the first antenna unit 610.

In one embodiment, the distance between the first radiator 611 and the second radiator 621 is less than 5 mm. The first antenna unit 610 and the second antenna unit 620 can be arranged compactly inside the electronic device, saving internal space.

In one embodiment, the first radiator 611 and the first parasitic branch 612 are linear radiators, and the distance between them is less than 5 mm, or the first radiator 611 and the first parasitic branch 612 are in the shape of a sheet, with a distance between them The distance is less than 2mm. In one embodiment, the second radiator 621 and the second parasitic branch 622 are linear radiators, and the distance between them is less than 5 mm, or the second radiator 621 and the second parasitic branch 622 are sheet radiators, which The distance between them is less than 2mm. The first antenna unit 610 and the second antenna unit 620 can be arranged compactly inside the electronic device, saving internal space.

It should be understood that the distance between the first radiator 611 and the second radiator 621 can be understood as the minimum value of the straight-line distance between a point on the first radiator 611 and a point on the second radiator 621. The above-mentioned first The distance between the radiator 611 and the first parasitic branch 612 and the distance between the second radiator 621 and the second parasitic branch 622 can also be understood accordingly.

It should be understood that when the first radiator 611 and the second radiator 621 are sheet radiators, the width of the radiator can be adjusted according to the width of the radiator (which can be understood as the length of the radiator in the second direction, or the ground connection between the radiator and the radiator). The distance between the first radiator 611 and the second radiator 621 can be further reduced. In one embodiment, the distance between the first radiator 611 and the second radiator 621 is less than 2 mm, or less than 1 mm.

In one embodiment, the electronic device 600 may further include a first resonant connection 631 and a first electronic component 641 . The first resonant connection member 631 may be disposed between the first radiator 611 and the first parasitic branch 612 . The first end of the first resonant connection member 631 is electrically connected to the first radiator 611 , and the second end is electrically connected to the first parasitic branch 612 . The first end of the first electronic component 641 is electrically connected to the first resonant connection member 631 , and the second end is electrically connected to the floor 630 to achieve grounding. The first electronic component 641 is connected in parallel between the first resonant connection member 631 and the floor 630 .

It should be understood that through the first resonant connection member 631 disposed between the first radiator 611 and the first parasitic branch 612 and the first electronic component 641 connected in parallel between the first resonant connection member 631 and the floor 630, the first resonant connection member 631 can be adjusted. A first resonant mode of the antenna unit 610 The frequency of the resonance generated by the formula (for example, HWM) and the frequency of the resonance generated by the second resonance mode (for example, OWM) are so that the resonances generated by the two resonance modes are close to each other to form a wider resonance frequency band to expand the first antenna unit 610 working bandwidth. Alternatively, the resonant frequencies generated by the two resonant modes can also be made far away from each other, so that the working frequency band of the first antenna unit 610 includes two different communication frequency bands.

Similarly, when the first resonant connection member 631 is not provided between the first radiator 611 and the first parasitic branch 612, the same distance can also be achieved by adjusting the distance between the first radiator 611 and the first parasitic branch 612. technical effects.

In one embodiment, the first end of the first resonant connection 631 is located between the first end of the first radiator 611 and the midpoint of the first radiator 611 . In one embodiment, the second end of the first resonant connection 631 is located between the second end of the first parasitic stub 612 and the midpoint of the first parasitic stub 612 .

In one embodiment, the second antenna unit 620 further includes a second parasitic branch 622, and the second radiator 621 and the second parasitic branch 622 are juxtaposed. In one embodiment, the second radiator 621 is located between the first radiator 611 and the second parasitic stub 622 . The projection of the second radiator 621 on the plane of the floor 630 (the second projection) and the projection of the second parasitic branch 622 on the plane of the floor 630 (the fourth projection) are parallel to each other in the first direction, and are parallel to each other in the second direction. overlap at least partially.

In one embodiment, the ground terminal of the second radiator 621 and the ground terminal of the second parasitic branch 622 are ground terminals arranged on opposite sides, the second end of the second parasitic branch 622 is grounded, and the first terminal of the second radiator 621 is grounded. The distance between the end (ground end) and the first end of the second parasitic branch 622 is smaller than the distance between the first end (ground end) of the second radiator 621 and the second end (ground end) of the second parasitic branch 622 distance.

It should be understood that the ground end of the second radiator 621 and the ground end of the second parasitic branch 622 are arranged on opposite sides to form a strong coupling structure. The second parasitic branch 622 resonates through the electrical signal fed by the second radiator 621, so as to Expand the working frequency band of the second antenna unit 620.

In the embodiment of this application, the number of parasitic branches is not limited. Parasitic branches can be provided on the radiator of the antenna unit according to actual design needs. The parasitic branches and the radiator form a strongly coupled structure to form multiple resonance frequency bands. Expand the operating bandwidth of the antenna structure.

In one embodiment, the electronic device 600 may also include a second resonant connection 632 and a second electronic component 642 . The second resonant connection member 632 may be disposed between the second radiator 621 and the second parasitic branch 622 . The first end of the second resonant connection member 632 is electrically connected to the second radiator 621 , and the second end is electrically connected to the second parasitic branch 622 . The first end of the second electronic component 642 is electrically connected to the second resonant connection member 632 , the second end is electrically connected to the floor 630 to achieve grounding, and the second electronic component 642 is connected in parallel between the second resonant connection member 632 and the floor 630 .

It should be understood that through the second resonant connection member 632 disposed between the second radiator 621 and the second parasitic branch 622 and the second electronic component 642 connected in parallel between the second resonant connection member 632 and the floor 630, the second resonant connection member 632 can be adjusted. The frequency of the resonance generated by the first resonant mode (eg, HWM) of the two antenna units 620 and the frequency of the resonance generated by the second resonant mode (eg, OWM) cause the resonances generated by the two resonant modes to be close to each other to form a wider resonance. frequency band to expand the operating bandwidth of the second antenna unit 620. Alternatively, the resonant frequencies generated by the two resonant modes can also be made far away from each other, so that the working frequency band of the second antenna unit 620 includes two different communication frequency bands.

Similarly, when the second resonant connection member 632 is not provided between the second radiator 621 and the second parasitic branch 622, the same distance can also be achieved by adjusting the distance between the second radiator 621 and the second parasitic branch 622. technical effects.

In one embodiment, the first end of the second resonant connection 632 is located between the first end of the second radiator 621 and the midpoint of the second radiator 621 . In one embodiment, the second end of the second resonant connection 632 is located between the second end of the second parasitic stub 622 and the midpoint of the second parasitic stub 622 .

In one embodiment, the electronic device 600 may further include a third electronic component 643 . The first resonant connection member 631 may have a gap. The third electronic component 643 can be disposed in the gap of the first resonant connecting member 631 and connected in series between the first resonating connecting members 631 on both sides of the gap. The two ends of the third electronic component 643 are respectively connected with the first resonant connecting members 631 on both sides of the gap. The connector 631 is electrically connected.

In one embodiment, the electronic device 600 may further include a fourth electronic component 644. The second resonant connection 632 may have a gap. The fourth electronic component 644 can be disposed in the gap of the second resonant connecting member 632 and connected in series between the second resonating connecting members 632 on both sides of the gap. The two ends of the fourth electronic component 644 are respectively connected with the second resonant connecting members on both sides of the gap. Connector 644 electrically connects.

It should be understood that the resonant connection member can be equivalent to an inductor, and the inductance value of its equivalent inductance can be adjusted by the length or width of the resonant connection member. The equivalent inductance of the resonant connector can be adjusted by electronic components connected in series to the resonant connector, thereby adjusting the resonance frequency corresponding to the first resonant mode of the antenna unit.

It should be understood that the electrical lengths of the radiator and the resonant branches of the antenna unit should be approximately the same, so that the resonant frequency bands of the antenna units are close to each other, so as to expand the operating frequency band of the antenna unit.

In one embodiment, the first radiator 611 and the first parasitic branch 612 are arranged in parallel and not collinearly. The projection of the first radiator 611 on the floor (first projection) and the projection of the first parasitic branch 612 on the floor (third projection) are only partially coincident along the second direction (for example, x direction), for example, the first radiation There is a certain misalignment between the body 611 and the first parasitic branch 612 in the first direction (for example, the y direction). It is the same as or similar to the previous embodiment and will not be described again here.

In one embodiment, the first radiator 611 or the first parasitic branch 612 may be a linear radiator, and the first antenna unit 610 may be an IFA. Alternatively, the first radiator 611 or the first parasitic branch 612 may be a sheet radiator, and the first antenna unit 610 may be a PIFA. In one embodiment, the second antenna unit 620 may also be any of the above antenna types.

In one embodiment, the radiator and the parasitic branches are arranged on a bracket or a back cover in the electronic device, which will not be described again here.

Fig. 46 shows S parameters of the antenna unit shown in Fig. 45.

As shown in Figure 46, the first antenna unit and the second antenna unit can generate two resonances at 4.3GHz and 4.4GHz respectively, which can correspond to the two resonance modes in which the radiator and parasitic branches of the antenna unit operate (for example, OWM and HWM).

At the same time, the ground terminal of the first radiator and the ground terminal of the second radiator are arranged on the same side, which belongs to a weak coupling structure. In the resonant frequency band, the isolation between the first antenna unit and the second antenna unit is less than -24dB.

Figure 47 is a schematic diagram of yet another electronic device 600 provided by an embodiment of the present application.

Similarly, the first radiator 611 and the second radiator 621 have ground terminals on the same side, for example, forming a weak coupling structure. In the first antenna unit 610, the first radiator 611 and the first parasitic branch 612 have ground terminals on opposite sides, for example, forming a strong coupling structure. In the second antenna unit 620, the second radiator 621 and the second The parasitic branches 622 form a strongly coupled structure. For a strongly coupled structure, the relative positions between the radiators can be similar to those in the previous embodiment, and will not be described in detail in the embodiments of this application.

As shown in Figure 47, in this embodiment, only the first radiator 611 and the second radiator 621 are juxtaposed, and the ground terminals are arranged on the same side. For example, a weak coupling structure is formed, and the radiators and parasitic branches are arranged in series. , and the ground terminals are arranged on different sides, such as forming a strong coupling structure, as an example to illustrate.

Fig. 48 shows S parameters of the antenna unit shown in Fig. 47.

As shown in Figure 48, the first antenna unit and the second antenna unit can generate two resonances at 4.3GHz and 4.45GHz respectively, which can correspond to the two resonance modes in which the radiator and the resonance branch of the antenna unit operate (for example, OWM and HWM).

At the same time, the ground terminal of the first radiator and the ground terminal of the second radiator are arranged on the same side, for example, forming a weak coupling structure. In the resonant frequency band, the isolation between the first antenna unit and the second antenna unit is less than -12dB.

Figure 49 is a schematic diagram of yet another electronic device 600 provided by an embodiment of the present application.

Similarly, the first radiator 611 and the second radiator 621 have ground terminals arranged on the same side, for example, forming a weak coupling structure. In the first antenna unit 610, the first radiator 611 and the first parasitic branch 612 have ground terminals arranged on opposite sides, for example, forming a strong coupling structure. In the second antenna unit 620, the second radiator 621 and the first parasitic branch 612 have ground terminals arranged on opposite sides. The two parasitic branches 622 have ground terminals arranged on opposite sides, for example, forming a strong coupling structure. For a strongly coupled structure, the relative positions between the radiators can be similar to those in the previous embodiment, and will not be described in detail in the embodiments of this application.

As shown in Figure 49, in this embodiment, only the first radiator 611 and the second radiator 621 are arranged in series, and the ground terminals are arranged on the same side. For example, a weak coupling structure is formed, and the radiators and parasitic branches are juxtaposed. , and the ground terminals are arranged on different sides, such as forming a strong coupling structure, as an example to illustrate.

The difference between the first antenna unit 610 and the second antenna unit 620 shown in Figure 49 and the first antenna unit 610 and the second antenna unit 620 shown in Figure 45 is that the arrangement of the radiator and the parasitic branches is different, as shown in Figure 49 The arrangement is a 2×2 array arrangement (the radiators of the two antenna units are arranged collinearly), and the arrangement shown in Figure 45 is a 1×4 array arrangement (the radiators of the two antenna units are parallel and not collinear settings).

It should be understood that for collinearly arranged radiators and parasitic branches, there may be a certain offset according to the actual spatial layout. For example, the collinear direction is the y direction, and the radiators and parasitic branches can be along the positive or positive direction of the x direction. For negative movement, there is only partial overlap in the y reverse direction. Fig. 50 shows S parameters of the antenna unit shown in Fig. 49.

As shown in Figure 50, the first antenna unit and the second antenna unit can generate two resonances at 4.3GHz and 4.4GHz respectively, which can correspond to the two resonance modes in which the radiator and the resonance branch of the antenna unit operate (for example, OWM and HWM).

At the same time, the ground end of the first radiator is close to the non-ground end of the second radiator, which is a weak coupling structure. In the resonant frequency band, the first antenna The isolation between the unit and the second antenna unit is less than -12dB.

The difference between the first antenna unit 610 and the second antenna unit 620 shown in FIG. 51 and the first antenna unit 610 and the second antenna unit 620 shown in FIG. 49 lies in the arrangement of the radiators and parasitic branches. As shown in FIG. 51 The arrangement is a linear arrangement (the radiators and parasitic branches of the two antenna units are arranged in series), and the arrangement shown in Figure 49 is a 2×2 array arrangement (the radiators of the two antenna units are arranged in series). placement, juxtaposition between radiators and parasitic branches).

It should be understood that in the antenna structure shown in Figure 49, the first radiator 611 and the second radiator 621 are arranged adjacent to each other, while in the antenna structure shown in Figure 51, the first parasitic branch 612 is arranged on the first radiator. Between 611 and the second radiator 621, the first radiator 611 and the second radiator 621 are spaced apart. The embodiments of the present application do not limit the specific form of the weak coupling structure formed between the radiators, nor the specific form of the strong coupling structure formed between the radiators and the corresponding parasitic branches, which can be carried out according to the actual design. Adjustment.

FIG. 52 shows S parameters of the antenna unit shown in FIG. 51 .

As shown in Figure 52, the first antenna unit and the second antenna unit can resonate at 4.4GHz. The ground end of the first radiator is close to the non-ground end of the second radiator, which is a weak coupling structure. In the resonant frequency band, the isolation between the first antenna unit and the second antenna unit is less than -20dB.

Figure 53 is a schematic diagram of yet another electronic device 600 provided by an embodiment of the present application.

The difference between the first antenna unit 610 and the second antenna unit 620 shown in FIG. 53 and the first antenna unit 610 and the second antenna unit 620 shown in FIG. 47 lies in the arrangement of the radiators and parasitic branches. As shown in FIG. 47 The arrangement is that the radiators and parasitic branches of each antenna unit are arranged in series, and the radiators of the two antenna units are arranged parallel and not collinear. The arrangement shown in Figure 53 is that the radiators of each antenna unit are arranged in series. They are arranged in line with the parasitic branches, and the radiators of the two antenna units are staggered.

FIG. 54 shows S parameters of the antenna unit shown in FIG. 53 .

As shown in Figure 54, the first antenna unit and the second antenna unit can generate two resonances at 4.3GHz and 4.45GHz respectively, which can correspond to the two resonance modes in which the radiator and the resonance branch of the antenna unit operate (for example, OWM and HWM).

At the same time, the staggered arrangement of the first radiator and the second radiator belongs to a weak coupling structure. In the resonant frequency band, the isolation between the first antenna unit and the second antenna unit is less than -12dB.

Figure 55 is a schematic diagram of yet another electronic device 600 provided by an embodiment of the present application.

As shown in FIG. 55 , the electronic device 600 may include a first antenna unit 610 , a second antenna unit 620 and a floor 630 .

Wherein, the first antenna unit 610 includes a first radiator 611 and a first feeding unit 613. The first radiator 611 includes a first feed point 614, and the first feed unit 613 and the first radiator 611 are electrically connected at the first feed point 614.

The second antenna unit 620 includes a second radiator 621 and a second feeding unit 623. The second radiator 621 includes a second feed point 624. The second feed unit 623 and the second radiator 621 are electrically connected at the second feed point 624. The first feed unit 613 is different from the second feed unit 623. . In one embodiment, the first feeding unit 613 and the second feeding unit 623 are different. It can be understood that the electrical signal generated by the first feeding unit 613 is different from the electrical signal generated by the second feeding unit 623. It is not caused by The same feed source is generated through the feed network. For example, the first feeding unit 613 and the second feeding unit 623 may be different radio frequency channels of the same power chip.

The projection of the first radiator 611 on the plane of the floor 630 (first projection) and the projection of the second radiator 621 on the plane of the floor 630 (the second projection) are perpendicular. And the extension line of the second radiator 621 intersects the first radiator 611 on the first radiator 611 .

It should be understood that the first projection is perpendicular to the second projection, which means that the direction of the first radiator 611 from the ground end to the open end is perpendicular to the direction of the second radiator 621 from the ground end to the open end.

The second end of the first radiator 611 is grounded, the second end of the second radiator 621 is grounded, and the second end (ground end) of the second radiator 621 is connected to the second end (ground end) of the first radiator 611 ) is less than the distance between the second end (ground end) of the second radiator 621 and the first end of the first radiator 611 .

It should be understood that the first radiator 611 and the second radiator 621 are arranged vertically to form a weak coupling structure. Therefore, there is good isolation between the first antenna unit 610 and the second antenna unit 620. As shown in Figure 56, in the resonant frequency band, the isolation between the first antenna unit 610 and the second antenna unit 620 is less than -12 dB.

In one embodiment, the antenna structure may also include more antenna units, adjacent antenna units are arranged vertically, and there may be good isolation between two antenna units.

In one embodiment, the working frequency bands of two or more antenna units are the same (for example, both include the first frequency band).

In one embodiment, in order to expand the operating frequency band of the antenna unit, the antenna unit may include parasitic branches, as shown in Figure 57.

For example, the first antenna element 610 may include a first parasitic stub 612 . In one embodiment, the ground terminal of the first radiator 611 and the ground terminal of the first parasitic branch 612 are ground terminals provided on opposite sides, forming a strong coupling structure. The first radiator 611 may be located between the first parasitic branch 612 and the second radiator 621 . The first end of the first radiator 611 is opposite to the first end of the first parasitic branch 612 and does not contact each other. The second end of the first radiator 611 is grounded, and the second end of the first parasitic branch 612 is grounded. The projection of the first radiator 611 on the plane of the floor 630 (the first projection) and the projection of the first parasitic branch 612 on the plane of the floor 630 (the third projection) are along the same direction in the first direction (for example, x direction). Straight line setting. The distance between the second end (ground end) of the second radiator 621 and the second end (ground end) of the first parasitic branch 612 is greater than the distance between the second end (ground end) of the second radiator 621 and the first parasitic branch. The distance between the first ends of 612.

In one embodiment, the second antenna unit 620 may include a second parasitic stub 622 . In one embodiment, the ground terminal of the second radiator 621 and the ground terminal of the second parasitic branch 622 are ground terminals provided on opposite sides, forming a strong coupling structure. The first end of the second radiator 621 is opposite to the first end of the second parasitic branch 622 and does not contact each other. The second end of the second radiator 621 is grounded, and the second end of the second parasitic branch 622 is grounded. The projection of the second radiator 621 on the plane of the floor 630 (the second projection) and the projection of the second parasitic branch 622 on the plane of the floor 630 (the fourth projection) are along the same direction in the second direction (for example, the y direction). Straight line setting. The distance between the second end (ground end) of the first radiator 611 and the second end (ground end) of the second parasitic branch 622 is greater than the distance between the second end (ground end) of the first radiator 611 and the second parasitic branch. The distance between the first ends of 622.

In one embodiment, the third antenna element 640 may include a third parasitic stub 642 .

It should be understood that the embodiments of the present application do not limit the number of parasitic branches in the electronic device. Each antenna unit can include parasitic branches, and the position of the parasitic branches can be selected according to the actual internal space of the electronic device to form a strong coupling structure. For example, the parasitic branches and the radiator can be arranged along the same straight line, with the grounding points far away from each other and arranged on opposite sides. Alternatively, the parasitic branches and the radiator can be arranged in parallel and non-collinear, with the grounding points far away from each other and arranged on opposite sides. This application There are no restrictions on this.

In one embodiment, the electronic device 600 may further include a resonant connection disposed between the radiator and the parasitic stub of the antenna unit and an electronic component disposed between the resonant connection and the floor. For example, the first resonant connection member 631 may be disposed between the first radiator 611 and the first parasitic branch 612 . The first end of the first resonant connection member 631 is electrically connected to the first radiator 611 , and the second end is electrically connected to the first parasitic branch 612 . The first end of the first electronic component 641 is electrically connected to the first resonant connection member 631 , and the second end is electrically connected to the floor 630 to achieve grounding. The first electronic component 641 is connected in parallel between the first resonant connection member 631 and the floor 630 .

It should be understood that the resonant connection provided between the radiator and the parasitic stub of the antenna unit and the electronic components provided between the resonant connection and the floor can adjust the resonance generated by the first resonant mode (for example, HWM) of the antenna unit and the frequency of the resonance generated by the second resonant mode (eg, OWM), so that the resonant frequencies generated by the two resonant modes are close to each other to expand the operating bandwidth of the antenna unit.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are schematic. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical or other forms.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (25)

1. An electronic device, characterized by including:

   floor;

   The first antenna unit includes a first parasitic branch, a first radiator and a first feed unit. The first radiator includes a first feed point, and the first feed unit passes through the first feed point. Coupled with the first radiator;

   The second antenna unit includes a second radiator and a second feed unit. The second radiator includes a second feed point. The second feed unit communicates with the second feed unit through the second feed point. Radiator coupling, the first feeding unit and the second feeding unit are different;

   Wherein, the first end of the first radiator, the first end of the second radiator, and the second end of the first parasitic branch are all coupled to the floor ground;

   The first end of the first radiator and the first end of the second radiator are ground ends provided on the same side;

   The first end of the first radiator and the second end of the first parasitic branch are ground ends provided on opposite sides.
2. The electronic device according to claim 1, characterized in that:

   The first radiator and the second radiator are arranged in series.
3. The electronic device according to claim 1, characterized in that:

   The first radiator and the second radiator are juxtaposed.
4. The electronic device according to any one of claims 1 to 3, characterized in that:

   The first radiator and the first parasitic branch are juxtaposed.
5. The electronic device according to any one of claims 1 to 3, characterized in that:

   The first radiator and the first parasitic branch are arranged in series.
6. The electronic device according to any one of claims 1 to 5, characterized in that:

   The first radiator and the second radiator both extend in the first direction, the second end of the first radiator is an open end, and the second end of the second radiator is an open end, wherein , the ground terminal provided on the same side of the first end of the first radiator and the first end of the second radiator refers to the third end of the first end of the first radiator in the first direction. On one side, the second end of the first radiator is on the second side in the first direction, and the first end of the second radiator is on the first side in the first direction, and the The second end of the second radiator is on the second side in the first direction.
7. The electronic device according to any one of claims 1 to 6, characterized in that:

   The first radiator and the first parasitic branch both extend in the first direction, the second end of the first radiator is an open end, and the first end of the first parasitic branch is an open end, where , the first end of the first radiator and the second end of the first parasitic branch are grounding ends provided on opposite sides, which means that the first end of the first radiator in the first direction The first side, the second end of the first radiator is on the second side in the first direction, and the first end of the first parasitic branch is on the first side in the first direction, so The second end of the first parasitic branch is on the second side in the first direction.
8. The electronic device according to any one of claims 1 to 7, characterized in that:

   The electronic device further includes a first resonant connection and a first electronic component;

   Wherein, the first end of the first resonant connection member is coupled with the first radiator, and the second end of the first resonant connection member is coupled with the first parasitic branch; and

   A first end of the first electronic component is coupled to the first resonant connection, and a second end of the first electronic component is coupled to the floor ground.
9. The electronic device according to any one of claims 1 to 8, characterized in that:

   The first end of the first resonant connection is located between the first end of the first radiator and the midpoint of the first radiator, and/or,

   The second end of the first resonant connection is located between the second end of the first parasitic stub and the midpoint of the first parasitic stub.
10. The electronic device according to any one of claims 1 to 9, characterized in that:

    The physical length L1 of the first radiator and the physical length L2 of the second radiator satisfy: L1×80%≤L2≤L1×120%;

    The physical length L1 of the first radiator and the physical length L3 of the first parasitic branch satisfy: L1×80%≤L3≤L1×120%.
11. The electronic device according to any one of claims 8 to 10, characterized in that:

    The electronic device further includes a second electronic component;

    The first resonant connection member includes a gap, and the second electronic component is connected in series to the first resonant connection member through the gap.
12. The electronic device according to any one of claims 7 to 11, characterized in that:

    The first parasitic branch and the first radiator are used to jointly generate a first resonance and jointly generate a second resonance;

    The second radiator is used to generate a third resonance.
13. The electronic device according to any one of claims 1 to 12, characterized in that:

    The operating frequency band of the first antenna unit and the operating frequency band of the second antenna unit both include the first frequency band.
14. An electronic device, characterized by including:

    floor;

    The first antenna unit includes a first parasitic branch, a first radiator and a first feed unit. The first radiator includes a first feed point, and the first feed unit passes through the first feed point. Coupled with the first radiator;

    The second antenna unit includes a second radiator and a second feed unit. The second radiator includes a second feed point. The second feed unit communicates with the second feed unit through the second feed point. Radiator coupling, the first feeding unit and the second feeding unit are different;

    Wherein, the first end of the first radiator, the first end of the second radiator, and the second end of the first parasitic branch are all coupled to the floor ground;

    The first projection and the second projection extend in the first direction and do not overlap in the second direction. The second direction is perpendicular to the first direction. The first projection is where the first radiator is located. The projection on the plane where the floor is located, the second projection is the projection of the second radiator on the plane where the floor is located;

    The first end of the first radiator and the first end of the second radiator are ground ends provided on opposite sides; the first end of the first radiator and the second end of the first parasitic branch Ground terminal set for the opposite side.
15. The electronic device according to claim 14, characterized in that:

    The first radiator and the first parasitic branch are juxtaposed.
16. The electronic device according to claim 15, characterized in that:

    The first radiator and the first parasitic branch are arranged in series.
17. The electronic device according to any one of claims 13 to 16, characterized in that:

    The electronic device also includes a first resonant connection and a first electronic component;

    Wherein, the first end of the first resonant connection member is coupled with the first radiator, and the second end of the first resonant connection member is coupled with the first parasitic branch; and

    A first end of the first electronic component is coupled to the first resonant connection, and a second end of the first electronic component is coupled to the floor ground.
18. The electronic device according to any one of claims 13 to 17, characterized in that:

    The first end of the first resonant connection is located between the first end of the first radiator and the midpoint of the first radiator, and/or,

    The second end of the first resonant connection is located between the second end of the first parasitic stub and the midpoint of the first parasitic stub.
19. The electronic device according to any one of claims 13 to 18, characterized in that:

    The first parasitic branch and the first radiator are used to jointly generate a first resonance and jointly generate a second resonance;

    The second radiator is used to generate a third resonance.
20. The electronic device according to any one of claims 13 to 19, characterized in that:

    The operating frequency band of the first antenna unit and the operating frequency band of the second antenna unit both include the first frequency band.
21. An electronic device, characterized by including:

    floor;

    The first antenna unit includes a first parasitic branch, a first radiator and a first feed unit. The first radiator includes a first feed point, and the first feed unit passes through the first feed point. Coupled with the first radiator;

    The second antenna unit includes a second radiator and a second feed unit. The second radiator includes a second feed point. The second feed unit communicates with the second feed unit through the second feed point. Radiator coupling, the first feeding unit and the second feeding unit are different;

    Wherein, the first end of the first radiator, the first end of the second radiator, and the second end of the first parasitic branch are all coupled to the floor ground, and the second end of the second radiator is grounded. The distance between the first end and the second end of the first parasitic stub is greater than the distance between the first end of the second radiator and the first end of the first parasitic stub;

    The first projection and the second projection are perpendicular and the extension line of the second radiator intersects the first radiator on the first radiator, The first projection is the projection of the first radiator on the plane of the floor, and the second projection is the projection of the second radiator on the plane of the floor;

    The first projection and the third projection are arranged along the same straight line in the first direction, and the third projection is the projection of the first parasitic branch on the plane of the floor;

    The distance between the first end of the first radiator and the first end of the first parasitic branch is smaller than the distance between the first end of the first radiator and the second end of the first parasitic branch. distance.
22. The electronic device according to claim 21, characterized in that:

    The electronic device further includes a first resonant connection and a first electronic component;

    Wherein, the first end of the first resonant connection member is coupled with the first radiator, and the second end of the first resonant connection member is coupled with the first parasitic branch; and

    A first end of the first electronic component is coupled to the first resonant connection, and a second end of the first electronic component is coupled to the floor ground.
23. The electronic device according to claim 21 or 22, characterized in that:

    The first end of the first resonant connection is located between the first end of the first radiator and the midpoint of the first radiator, and/or,

    The second end of the first resonant connection is located between the second end of the first parasitic stub and the midpoint of the first parasitic stub.
24. The electronic device according to any one of claims 21 to 23, characterized in that:

    The first parasitic branch and the first radiator are used to jointly generate a first resonance and jointly generate a second resonance;

    The second radiator is used to generate a third resonance.
25. The electronic device according to any one of claims 21 to 24, characterized in that:

    The operating frequency band of the first antenna unit and the operating frequency band of the second antenna unit both include the first frequency band.