Antenna assembly and electronic equipment

Abstract

The invention provides an antenna assembly. The antenna assembly comprises a first radiation branch knot, a grounding matching part and a first feed source. The first radiation branch knot comprises a first feeding point and a first grounding point; the grounding matching piece is connected between the first grounding point and the ground; and the first feed source is connected with the first feeding point. Wherein under the excitation of the first feed source, the first radiation branch knot simultaneously works in at least two working modes under the cooperation of the grounding matching piece and supports a first group of frequency bands, the first group of frequency bands comprises at least two frequency bands, each working mode at least supports one frequency band, and the first group of frequency bands comprises at least two frequency bands. The at least two working modes comprise at least two working modes of a left-hand mode, a quarter-wavelength mode and a half-wavelength dipole mode. The invention further provides electronic equipment. According to the invention, multiple frequency bands can be realized through a compact antenna structure.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to an antenna assembly and an electronic device having the antenna assembly. Background Art

[0002] Currently, with the popularization of 5G communication technologies, people's communication experience is getting better and better. However, currently, the number of frequency bands that electronic devices need to support is increasing, and the number of antennas required is also increasing. With the popularization of full-screen, curved-screen, etc., the available clearance for antennas is getting less and less. Therefore, how to meet the current multi-band requirements in a limited space has become a problem to be solved. Summary of the Invention

[0003] This application provides an antenna assembly and an electronic device to solve the above problems.

[0004] In a first aspect, an antenna assembly is provided. The antenna assembly includes a first radiation branch, a ground matching component, and a first feeder. The first radiation branch includes a first feeding point and a first grounding point. The first radiation branch further includes a first open end and a second open end that are opposite to each other. The first feeding point and the first grounding point are located between the first open end and the second open end, and the first feeding point is located between the first grounding point and the first open end. The ground matching component is connected between the first grounding point and the ground. The first feeder is connected to the first feeding point. Wherein, under the excitation of the first feeder, the first radiation branch works in at least two working modes simultaneously under the matching of the ground matching component to support a first group of frequency bands. The first group of frequency bands includes at least two frequency bands. Each working mode supports at least one frequency band. The at least two working modes include at least two of a left-handed mode, a quarter-wavelength mode, and a half-wavelength dipole mode.

[0005] In a second aspect, an electronic device is further provided. The electronic device includes an antenna assembly. The antenna assembly includes a first radiation branch, a ground matching component, and a first feeder. The first radiation branch includes a first feeding point and a first grounding point. The first radiation branch further includes opposite first open ends and second open ends. The first feeding point and the first grounding point are located between the first open end and the second open end, and the first feeding point is located between the first grounding point and the first open end. The ground matching component is connected between the first grounding point and the ground. The first feeder is connected to the first feeding point. Wherein, under the excitation of the first feeder, the first radiation branch cooperates with the ground matching component to work in at least two operating modes simultaneously, and supports a first set of frequency bands. Among them, the first set of frequency bands includes at least two frequency bands. Each operating mode supports at least one frequency band. The at least two operating modes include at least two of a left-handed mode, a quarter-wavelength mode, and a half-wavelength dipole mode.

[0006] For the antenna assembly and the electronic device of the present application, by connecting the ground matching component between the first grounding point and the ground, the first radiation branch works in at least two operating modes simultaneously under the matching of the ground matching component. Each operating mode supports at least one frequency band. The at least two operating modes include at least two of a left-handed mode, a quarter-wavelength mode, and a half-wavelength dipole mode. Therefore, a first set of frequency bands including at least two frequency bands can be supported, and the requirement of multiple frequency bands can be met without increasing the size of the first radiation branch. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings required to be used in the embodiments of the present application or the background art will be described below.

[0008] Figure 1 It is a schematic structural diagram of an antenna assembly in an embodiment of the present application.

[0009] Figure 2 It is another schematic structural diagram of an antenna assembly in some embodiments of the present application.

[0010] Figure 3 It is yet another schematic structural diagram of an antenna assembly in some embodiments of the present application.

[0011] Figure 4 It is a further schematic structural diagram of an antenna assembly in some embodiments of the present application.

[0012] Figure 5 It is a schematic structural diagram of a first matching unit in some embodiments of the present application.

[0013] Figure 6 Another schematic structural diagram of the first matching unit in some embodiments of the present application.

[0014] Figure 7 A further specific schematic structural diagram of the first matching unit in some embodiments of the present application.

[0015] Figure 8 A further schematic structural diagram of the antenna assembly in some embodiments of the present application.

[0016] Figure 9 A schematic diagram of the second matching unit in some embodiments of the present application.

[0017] Figure 10 A further schematic structural diagram of the antenna assembly in some embodiments of the present application.

[0018] Figure 11 A further schematic structural diagram of the antenna assembly in some embodiments of the present application.

[0019] Figure 12 A structural block diagram of the electronic device in some embodiments of the present application.

[0020] Figure 13 A plan view of the electronic device in some embodiments of the present application.

[0021] Figure 14 A schematic diagram of the current distribution when the antenna assembly of the electronic device in some embodiments of the present application operates in the first frequency band.

[0022] Figure 15 A schematic diagram of the current distribution when the antenna assembly of the electronic device in some embodiments of the present application operates in the second frequency band.

[0023] Figure 16 A schematic diagram of the current distribution when the antenna assembly of the electronic device in some embodiments of the present application operates in the third frequency band.

[0024] Figure 17 A schematic diagram of the antenna efficiency of each frequency band in which the antenna assembly operates when the first matching unit of the antenna assembly of the electronic device in some embodiments of the present application is in different matching states.

[0025] Figure 18 A schematic diagram of the return loss of each frequency band in which the antenna assembly operates when the first matching unit of the antenna assembly of the electronic device in some embodiments of the present application is in different matching states.

[0026] Figure 19 A more specific structural block diagram of the electronic device in some embodiments of the present application. Detailed implementation manners

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "thickness", "width", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than implying or indicating that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. The term "connection" in this application includes meanings such as physical structure connection, electrical connection, direct connection or indirect connection, etc., and can be specifically determined according to the required connection situation. In the description of the embodiments of the present invention, terms such as "first" and "second" are not specific, but are used to distinguish objects with the same name. In the case where there is a description in the specification, the objects with the same name referred to by terms such as "first" and "second" can be the same object.

[0029] Please refer to Figure 1 , which is a schematic structural diagram of an antenna assembly 1 in an embodiment of the present application. As Figure 1 shown, the antenna assembly 1 includes a first radiation branch 11, a ground matching member 12, and a first feeder 13. Among them, the first radiation branch 11 includes a first feeding point F1 and a first grounding point G1. Among them, the first radiation branch 11 further includes opposite first open ends 11a and second open ends 11b. The first feeding point F1 and the first grounding point G1 are located between the first open end 11a and the second open end 11b, and the first feeding point F1 is located between the first grounding point G1 and the first open end 11a. The ground matching member 12 is connected between the first grounding point G1 and the ground GND; the first feeder 13 is connected to the first feeding point F1. Among them, under the excitation of the first feeder 13, the first radiation branch 11 works in at least two working modes simultaneously under the matching of the ground matching member 12 and supports a first group of frequency bands. Among them, the first group of frequency bands includes at least two frequency bands. Among them, each working mode supports at least one frequency band. Among them, the at least two working modes include at least two working modes among the left-handed mode, the quarter-wavelength mode, and the half-wavelength dipole mode.

[0030] Thus, the antenna assembly 1 of the present application is connected between the first ground point G1 and the ground GND through the ground matching member 12, so that the first radiation branch 11 operates in at least two operating modes simultaneously under the matching of the ground matching member 12. Each operating mode supports at least one frequency band, and the at least two operating modes include at least two of the left-handed mode, the quarter-wavelength mode, and the half-wavelength dipole mode. Thus, a first set of frequency bands including at least two frequency bands can be supported, and the requirement of multiple frequency bands can be met without increasing the size of the radiation branch 11, which is the first radiation branch.

[0031] Among them, in some embodiments, when the first radiation branch 11 operates in at least two operating modes simultaneously under the cooperation of the ground matching member 12, the at least one frequency band supported in different operating modes may be different.

[0032] Among them, in the present application, each operating mode supports at least one frequency band, which may mean that when the first radiation branch 11 cooperates with the ground matching member 12 and operates in a certain operating mode under the excitation of the first feed 13, it can support the transceiver of electromagnetic wave signals corresponding to at least one frequency band.

[0033] Among them, in some embodiments, the first radiation branch 11 may include multiple branch parts. When the first radiation branch 11 supports operating in different operating modes under the cooperation of the ground matching member 12, it includes the situation where the entire radiation branch 11, which is the first radiation branch 11, supports the corresponding operating mode under the cooperation of the ground matching member 12, and also includes the situation where the branch parts of the first radiation branch support the corresponding operating mode under the cooperation of the ground matching member 12. Among them, the branch parts are the branch parts divided by the first ground point G1.

[0034] That is, in some embodiments, the first radiation branch 11 includes multiple branch parts, and some of the branch parts are the branch parts divided by the first radiation branch 11 through the first ground point G1. The first radiation branch 11 operates in at least two operating modes simultaneously under the matching of the ground matching member 12, and specifically may include the first radiation branch 11 and its branch parts supporting different operating modes under the matching of the ground matching member 12.

[0035] Thus, in some embodiments, the first radiation branch 11 may include multiple branch parts, and different operating modes can be supported through the first radiation branch 11 and its different branch parts under the cooperation of the ground matching member 12, so as to realize the diversification of operating modes. Thus, the number of supported frequency bands can be increased.

[0036] Please refer toFigure 2 , which is another schematic structural diagram of the antenna assembly 1 in some embodiments of the present application. Among them, Figure 2 Compared with Figure 1 , more reference numerals and / or components are shown.

[0037] As Figure 2 shown, the first radiation branch 11 includes a first branch portion Z1 and a second branch portion Z2. The first branch portion Z1 is the branch portion between the first open end 11a and the first ground point G1, and the second branch portion Z2 is the branch portion between the second open end 11b and the first ground point G1. Among them, the at least two operating modes include three operating modes. Under the excitation of the first feed 13, the first branch portion Z1 operates in the left-handed mode under the matching of the ground matching member 12, and the second branch portion Z2 operates in the quarter-wavelength mode under the matching of the ground matching member 12. The first radiation branch 11 operates in the half-wavelength dipole mode under the matching of the ground matching member 12.

[0038] That is, in some embodiments, the first radiation branch 11 and the two branch portions, namely the first branch portion Z1 and the second branch portion Z2, can operate in three operating modes simultaneously under the respective matching of the ground matching member 12. Thus, three frequency bands can be supported, and the requirements of multiple frequency bands can be better met.

[0039] In some embodiments, the first group of frequency bands includes a first frequency band, a second frequency band, and a third frequency band. When the first branch portion Z1 and the ground matching member 12 cooperate to operate in the left-handed mode, the first frequency band is supported. When the second branch portion Z2 and the ground matching member 12 cooperate to operate in the quarter-wavelength mode, the second frequency band is supported. When the first radiation branch 11 and the ground matching member 12 cooperate to operate in the half-wavelength dipole mode, the second frequency band is supported. Among them, the third frequency band is higher than the second frequency band, and the second frequency band is higher than the first frequency band.

[0040] Among them, in some embodiments, the first stub portion Z1 located between the first open end 11a and the first ground point G1 supports operation in the left-handed mode under the matching of the ground matching member 12, and can operate in the left-handed mode under the excitation of the first feeder 13 to support the transceiver of electromagnetic wave signals in the first frequency band; the second stub portion Z2 located between the second open end 11b and the first ground point G1 can form an antenna similar to an IFA (Inverted F Antenna) under the matching of the ground matching member 12, and thus, operate in the quarter-wavelength mode under the excitation of the first feeder 13 to support the transceiver of electromagnetic wave signals in the second frequency band; in addition, both ends of the entire first radiation stub 11 are open ends, forming a half-wavelength dipole antenna as a whole, and can operate in the half-wavelength dipole mode under the excitation of the first feeder 13 to support the transceiver of electromagnetic wave signals in the third frequency band under the matching of the ground matching member 12.

[0041] That is, in some embodiments, since the ground matching member 12 is connected between the first ground point G1 and the ground GND, therefore, the first stub portion Z1 located between the first open end 11a and the first ground point G1 and the ground matching member 12 are connected to form an antenna structure similar to an IFA antenna with one end open and the other end grounded. The first stub portion Z1 can operate in the left-handed mode under the excitation of the first feeder 13 under the matching of the ground matching member 12. Among them, in the left-handed mode, the sum of the equivalent electrical lengths of the first stub portion Z1 and the ground matching member 12 can be less than one-quarter of the wavelength corresponding to the corresponding frequency band, for example, the wavelength corresponding to the first frequency band, which is beneficial to miniaturization. In addition, since the second stub portion Z2 is located between the second open end 11b and the first ground point G1, therefore, the second stub portion Z2 can be connected to the ground matching member 12 to form an IFA antenna or an antenna similar to an IFA antenna with one end open and the other end grounded. Thus, the second stub portion Z2 operates in the quarter-wavelength mode under the excitation of the first feeder 13 under the matching of the ground matching member 12. In addition, both ends of the entire first radiation stub 11 are open ends, forming a half-wavelength dipole antenna as a whole. The ground matching member 12 can play a matching adjustment role such as impedance matching at this time, so that the entire first radiation stub 11 can operate in the half-wavelength dipole mode under the matching of the ground matching member to support the transceiver of electromagnetic wave signals in the corresponding frequency band, for example, the third frequency band.

[0042] In some embodiments, as described above, the third frequency band is higher than the second frequency band, and the second frequency band is higher than the first frequency band.

[0043] That is, in some embodiments, the first operating mode supported by the first stub portion Z1 under the matching of the ground matching member 12, for example, the first frequency band corresponding to the left-handed mode described above, is lower than the second frequency band corresponding to the second operating mode supported by the second stub portion Z2 under the matching of the ground matching member 12, for example, the quarter-wavelength mode described above; and the second frequency band corresponding to the second operating mode supported by the second stub portion Z2 under the matching of the ground matching member 12, for example, the quarter-wavelength mode described above, is further lower than the third frequency band supported by the entire first radiating stub 11 under the matching of the ground matching member 12 and operating in a third operating mode, such as a half-wavelength dipole mode, under the excitation of the first feed 13.

[0044] Wherein, in this application, one frequency band being higher than another frequency band means that the maximum value of the frequency range corresponding to one frequency band is lower than the maximum value of the frequency range corresponding to the other frequency band and the minimum value of the frequency range corresponding to one frequency band is lower than the minimum value of the frequency range corresponding to the other frequency band, or the center frequency corresponding to one frequency band is lower than the center frequency corresponding to the other frequency band.

[0045] In some embodiments, the frequency range corresponding to the first group of frequency bands is between 1 GHz and 3 GHz. That is, in some embodiments, the first group of frequency bands includes medium and high frequency bands with a frequency range between 1 GHz and 3 GHz.

[0046] In some embodiments, any one of the first frequency band, the second frequency band, and the third frequency band included in the first group of frequency bands may be a single frequency band, or may also be a frequency band covering multiple frequency bands.

[0047] For example, the first frequency band included in the first group of frequency bands may be the B3 frequency band (resonant frequency is approximately 1.8 GHz), the second frequency band may be the B1 frequency band (frequency range is approximately 2.1 GHz), the third frequency band may be the WiFi 2.4G frequency band (resonant frequency is approximately 2.45 GHz), or the third frequency band may be a frequency band that simultaneously covers the B40 frequency band (resonant frequency is approximately 2.35 GHz), the B41 frequency band (resonant frequency is approximately 2.6 GHz), and the WiFi 2.4G frequency band. Or, the first frequency band may be the GPS frequency band, such as the GPS L1 frequency band (resonant frequency is approximately 1.5 GHz) or the GPS L2 frequency band (resonant frequency is approximately 1.2 GHz), the second frequency band may be the B3 frequency band, the third frequency band may be the WiFi 2.4G frequency band (resonant frequency is approximately 2.45 GHz), or the third frequency band may be a frequency band that simultaneously covers the B40 frequency band (resonant frequency is approximately 2.35 GHz), the B41 frequency band (resonant frequency is approximately 6 GHz), and the WiFi 2.4G frequency band, and so on.

[0048] Among them, since the frequency ranges of the B40 band, the B41 band, and the WiFi 2.4G band are relatively close, in some embodiments, the third band may also be a wider band covering these three bands.

[0049] Obviously, in some embodiments, the first set of bands may also include other bands. For example, it may also include a low-frequency band, that is, for example, the first band may also be a low-frequency band, and so on, as long as the third band is higher than the second band, and the second band is higher than the first band.

[0050] In some embodiments, the bands in the first set of bands include the WiFi 2.4G band. That is, in some embodiments, among the bands included in the first set of bands, the WiFi 2.4G band is included, so as to meet the daily demand for WiFi communication.

[0051] In some embodiments, the first grounding point G1 is located between the first midpoint P0 and the first feeding point F1, where the first midpoint P0 is the midpoint of the first radiating stub 11. Thus, the first grounding point G1 is closer to the first feeding point F1 and the first open end 11a, which is conducive to forming a left-handed mode and is also more conducive to impedance matching adjustment in the half-wavelength dipole mode, thereby better achieving impedance matching in the third frequency band. Herein, the fact that the first midpoint P0 is the midpoint of the first radiating stub 11 means that the distances from the first midpoint to the second open end 11b and to the first open end 11a are equal. Herein, the distance may refer to the distance along the extending direction of the first radiating stub 11. In addition, the first grounding point G1 being closer to the first feeding point F1 and the first open end 11a is equivalent to being closer to the anti-phase current point in the third frequency band. In some embodiments, since the position where the first radiating stub 11 is arranged may be designed together with other structures, the length of the first radiating stub 11 may be relatively long compared to the half-wavelength in the third frequency band. Therefore, for the third frequency band, when there is no grounding matching component 12, there will be a current anti-phase point on the first radiating stub 11, and the anti-phase current will affect the radiation efficiency of the antenna. In the present application, the first grounding point G1 is close to the current anti-phase point in the third frequency band. By adding the grounding matching component 12 between the first grounding point G1 and the ground, in some embodiments, the grounding matching component 12 is inductive, such as an inductor or a conductive component such as a metal wire, which will be specifically introduced later. Therefore, it is equivalent to connecting an inductor to the ground at the current anti-phase point, which can make the currents on both sides of this point become in-phase currents again, improving the radiation efficiency / antenna efficiency in the third frequency band. Of course, from another perspective, since the grounding matching component 12 is inductive, it is also equivalent to being able to play a matching adjustment role, so that the equivalent electrical length of the first radiating stub 11 can be equal to the half-wavelength in the third frequency band, ensuring in-phase currents and thus the same current direction.

[0052] Herein, in the present application, the matching of the grounding matching component 12 may include impedance matching, etc. In some embodiments, the first stub portion Z1 and other stubs support operating in the corresponding operating mode under the matching of the grounding matching component 12, which may mean that the first stub portion Z1 and other stubs support operating in the corresponding operating mode at least under the matching of the grounding matching component 12. That is, in some embodiments, the first stub portion Z1 and other stubs may only support operating in the corresponding operating mode under the matching of the grounding matching component 12, or may also support operating in the corresponding operating mode under the matching of the grounding matching component 12 and further matching of other structures, such as a matching unit.

[0053] In some embodiments, the equivalent electrical length of the first stub portion Z1 under the matching of the ground matching element 12 meets the requirement of resonating in the first frequency band, and the equivalent electrical length of the second stub portion Z2 under the matching of the ground matching element 12 meets the requirement of resonating in the second frequency band, for example, it is one - quarter of the wavelength corresponding to the second frequency band, and can resonate in the quarter - wavelength mode. The equivalent electrical length of the first radiating stub 11 under the matching of the ground matching element 12 meets the requirement of resonating in the third frequency band, for example, it is one - half of the wavelength corresponding to the third frequency band, and can resonate in the half - wavelength dipole mode, that is, the half - wavelength mode. Among them, the equivalent electrical lengths of the first stub portion Z1, the second stub portion Z2, the first radiating stub 11, etc. can all be the equivalent electrical lengths under the matching of the ground matching element 12. In some embodiments, when a matching unit is included, the equivalent electrical lengths of the first stub portion Z1, the second stub portion Z2, the first radiating stub 11, etc. can also be the equivalent electrical lengths further equivalent under the matching of the corresponding matching unit.

[0054] Thus, at least through the matching of the ground matching element 12, the first radiating stub 11 can operate in the aforementioned three operating modes simultaneously under the excitation of the first feed 13, and can support three frequency bands simultaneously, effectively meeting the current demand for multi - frequency bands.

[0055] Among them, in some embodiments, the first radiating stub 11 can be bar - shaped.

[0056] Among them, Figure 1 and Figure 2 In the figures such as etc., taking the first radiating stub 11 as a straight bar as an example for illustration.

[0057] In some embodiments, the ground matching element 12 includes an inductor and / or a conductive member.

[0058] That is, in some embodiments, the ground matching element 12 can be at least one of an inductor and a conductive member, and is inductive as a whole.

[0059] In some embodiments, the conductive member includes at least one of a metal wire, an FPC (Flexible Printed Circuit), and a metal spring piece.

[0060] That is, in some embodiments, when the grounding matching component 12 includes a conductive component, the conductive component may include at least one electrical connection component such as a metal wire, an FPC, or a metal shrapnel, so as to realize the connection between the first grounding point G1 and the ground GND, and can match the corresponding branch part of the first radiation branch 11 to support operation in the corresponding operating mode. Among them, in the present application, the grounding matching component 12 including a conductive component may mean only including a conductive component.

[0061] In some embodiments, when the grounding matching component 12 includes an inductor, it may further include a conductive component, and the inductor can be connected to the first grounding point G1 and / or the ground GND through the conductive component.

[0062] In some embodiments, when the grounding matching component 12 includes conductive components such as metal wires, FPCs, and metal shrapnels, the conductive component can also be equivalent to an inductor and exhibit inductance.

[0063] In some embodiments, when the conductive component is a metal wire, that is, when the conductive component included in the grounding matching component is a metal wire, the width of the conductive component is any value between 0.5 mm (millimeters) and 1.5 mm, and the length of the conductive component is any value between 2 mm and 15 mm.

[0064] Thus, in some embodiments, when the width of the conductive component, that is, the metal wire, is any value between 0.5 mm and 1.5 mm, and the length of the conductive component, that is, the metal wire, is any value between 2 mm and 15 mm, it can better match the corresponding branch of the first radiation branch 11 to support the corresponding operating mode, and can play a better impedance matching role.

[0065] In some embodiments, the length of the conductive component, that is, the metal wire, can further be any value between 3 mm and 12 mm.

[0066] In some embodiments, the conductive component, that is, the metal wire, can be a flat strip, and the thickness of the conductive component, that is, the metal wire, can be much smaller than the length and width of the conductive component, that is, the metal wire. Among them, the length of the conductive component, that is, the metal wire, can be the dimension in the extending direction of the longest side of the conductive component, that is, the metal wire, and the width of the conductive component, that is, the metal wire, can be the dimension in a direction substantially perpendicular to the length direction and the thickness direction. As described above, the thickness direction can be the direction in which the dimension of the conductive component, that is, the metal wire, is the smallest.

[0067] Among them, in some embodiments, the width and length of the conductive member, that is, the metal wire, may refer to the width and length of the conductive part of the conductive member, that is, the metal wire. For example, the metal wire may be a bare metal wire or a metal wire wrapped with an insulating sheath, and the width and length of the grounding matching member 12 refer to the length and width of the metal part in the metal wire.

[0068] In some embodiments, such as Figure 1 and Figure 2 As shown, when the grounding matching member 12 includes a conductive member, the conductive member in the grounding matching member 12 is a bent or folded strip. In some embodiments, the grounding matching member 12 is a conductive member and may be a bent or folded strip-shaped metal wire or a bent or folded strip-shaped FPC, etc.

[0069] In some embodiments, when the grounding matching member 12 includes an inductor, it may further include a conductive member. The inductor can be connected to the first grounding point G1 and / or the ground GND through the conductive member. At this time, the inductor can also be combined with the conductive member to form an overall bent or folded shape.

[0070] Thus, in some embodiments, the grounding matching member 12 is in a bent or folded shape, so that the length of the grounding matching member 12 can be increased in a limited space, and the inductance value of the grounding matching member 12 can be correspondingly increased to meet the requirements of the corresponding working mode.

[0071] Among them, in this application, mainly taking the grounding matching member 12 as a conductive member, that is, only including a conductive member as an example for illustration.

[0072] Among them, the bent or folded strip includes a structure with an arbitrary shape formed by connecting multiple segments, such as a bent structure, or includes a bent arc structure with an arbitrary shape, etc.

[0073] In some embodiments, such as Figure 2 As shown, the grounding matching member 12 may be a bent structure, including a first connection segment 121, a second connection segment 122, and a third connection segment 123. The first connection segment 121 is connected to the first grounding point G1, the third connection segment 123 is grounded, and the second connection segment 122 is connected between the first connection segment 121 and the third connection segment 123 and is connected to both the first connection segment 121 and the third connection segment 123 at an angle.

[0074] That is, in some embodiments, such as Figure 1 and Figure 2As shown, there is a gap between the first radiation branch 11 and the ground GND, the ground matching piece 12 is located in the gap, and the second connecting section 122 is connected between the first connecting section 121 and the third connecting section 123, and is connected to the first connecting section 121 and the third connecting section 123 at an angle, and the ground matching piece 12 is a multi-section bending structure. Figure 2 As shown, the first connecting segment 121 is connected between the first grounding point G1 and one end of the second connecting segment 122, and the third connecting segment 123 is connected between the other end of the second connecting segment 122 and the ground GND, that is, the third connecting segment 123 extends toward one side of the first radiation branch 11 and is connected to the first grounding point G1, and the third connecting segment 123 extends toward one side of the ground GND, that is, extends away from the side of the first radiation branch 11 and is connected to the ground GND.

[0075] Thus, the ground matching piece 12 with a bent structure can be conveniently set according to the space. For example, when the grounding position corresponding to the first grounding point G1 is not convenient to be directly electrically connected, the ground matching piece 12 with a bent structure can be electrically connected to the grounding position at other positions. In addition, as mentioned above, the ground matching piece 12 with a bent structure can increase the length of the ground matching piece 12 within a limited space, and correspondingly increase the inductance value of the ground matching piece 12 to meet the requirements of the corresponding working mode.

[0076] In some embodiments, Figure 2 As shown, the first connecting section 121, the second connecting section 122 and the third connecting section 123 are all in the shape of straight bars, and the ground matching member 12 substantially forms an inverted "Z"-shaped structure.

[0077] in, Figure 2 In the example, the second connecting section 122 is vertically connected to the first connecting section 121 and the third connecting section 123. Figure 2 As shown, the angle between the second connecting section 122 and the first connecting section 121 is 90°, and the angle between the second connecting section 122 and the third connecting section 123 is also 90°. Obviously, the second connecting section 122 and the first connecting section 121 and the third connecting section 123 may also be connected at other angles.

[0078] In some embodiments, at least the target section portion of the first radiating section 11 is straight, the second connecting section 122 is at least parallel to the target section portion of the first radiating section 11, and the target section portion is the section portion corresponding to the projection of the second connecting section 122 on the first radiating section 11. In other embodiments, the second connecting section 122 may also not be parallel to the target section portion of the first radiating section 11. For example, it may be a standard "Z" shape to save space.

[0079] In some embodiments, as Figure 2 shown, the third connecting section 123 is closer to the first feeding point F1 than the first connecting section 121. That is, in some embodiments, the grounding matching member 12 is bent toward the first feeding point F1 and the first open end 11a side. In other embodiments, the third connecting section 123 may also be closer to the second open end 11b than the first connecting section 121. That is, in other embodiments, the grounding matching member 12 may also be bent toward the second open end 11b side.

[0080] Please refer to Figure 3 , which is another structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0081] As Figure 3 shown, in some embodiments, the grounding matching member 12 may be an "S" shape, that is, the grounding matching member may be an arc-shaped structure in an "S" shape. One end of the grounding matching member 12 is connected to the first grounding point G1, and the other end is connected to the ground GND.

[0082] Wherein, Figure 3 The difference from Figure 2 shown is that the grounding matching member 12 is an arc-shaped structure with a shape such as an "S" shape, and other structures are the same as those Figure 1 and Figure 2 shown. For details, please refer to the relevant content above.

[0083] In some embodiments, the antenna efficiencies of at least some frequency bands among the first frequency band, the second frequency band, and the third frequency band are different.

[0084] That is, in some embodiments, when different branch portions of the first radiating stub 11 support operation in different operating modes under the matching of the grounding matching member 12, the antenna efficiencies of multiple frequency bands supported by these different operating modes may be different. The antenna efficiencies of the first frequency band, the second frequency band, and the third frequency band are all relatively good, and the antenna efficiency of the second frequency band is better. Therefore, at this time, the communication quality of the second frequency band is the best, but the communication qualities of the first frequency band and the third frequency band can still be ensured. Therefore, three frequency bands can be supported simultaneously.

[0085] Among them, the antenna efficiency may include radiation efficiency and / or total system efficiency.

[0086] Please refer to Figure 4 , which is a further structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0087] As Figure 4 shown, the antenna assembly 1 further includes a first matching unit 14. The first matching unit 14 is connected between the first feeder 13 and the first feeding point F1. Under the excitation of the first feeder 13, the first radiating stub 11 operates in at least two operating modes simultaneously under the matching adjustment of the grounding matching member 12 and the first matching unit 14, and supports the first set of frequency bands.

[0088] That is, in some embodiments, the first radiating stub 11 operates in at least two operating modes simultaneously under the matching of the grounding matching member 12 and supports the first set of frequency bands. Specifically, it is achieved by further matching adjustment of the first matching unit 14.

[0089] Among them, the first matching unit 14 is used to achieve matching adjustment functions such as impedance matching, so that the first radiating stub 11 can operate in at least two operating frequency bands simultaneously under the matching of the grounding matching member 12 and the first matching unit 14 under the excitation of the first feeder 13, and support resonance in the corresponding at least two frequency bands, and support the first set of frequency bands.

[0090] In some embodiments, the first matching unit 14 is an adjustable matching unit. The first matching unit 14 includes at least two matching states. When the first matching unit 14 is in different matching states, among the frequency bands included in the first set of frequency bands, the antenna efficiency of at least one frequency band is different.

[0091] That is, in some embodiments, the first matching unit 14 is an adjustable matching unit. The first matching unit 14 includes at least two matching states. By adjusting the matching state of the first matching unit 14, the antenna efficiency of at least one frequency band among the frequency bands included in the first set of frequency bands can be made different.

[0092] Among them, when the first matching unit 14 is in different matching states, the impedance matching effects for different frequency bands are different. For example, at this time, it may be possible to better achieve impedance matching for a certain frequency band, making the antenna efficiency of this frequency band the highest. Therefore, by adjusting the matching state of the first matching unit 14, at least one frequency band in the frequency bands included in the first group of frequency bands can have different antenna efficiencies.

[0093] Therefore, in this application, by adjusting the matching state of the first matching unit 14, at least one frequency band in the frequency bands included in the first group of frequency bands can have different antenna efficiencies.

[0094] Thus, when the first group of frequency bands includes the first frequency band, the second frequency band, and the third frequency band, by adjusting the matching state of the first matching unit 14, the antenna efficiencies of at least some of the first frequency band, the second frequency band, and the third frequency band can be adjusted, so as to meet the current requirements for the antenna efficiencies of some frequency bands. For example, in some scenarios, it is desired that the antenna efficiency of the first frequency band is higher, and in other scenarios, it is desired that the antenna efficiency of the second frequency band is higher. Thus, the matching state of the first matching unit 14 can be adjusted as needed, so that the current antenna efficiency of the first frequency band is higher, or the antenna efficiency of the second frequency band is higher, etc., to meet the current requirements for the antenna efficiencies of the corresponding frequency bands.

[0095] Among them, when the first radiation branch 11 works in at least two operating modes simultaneously under the matching of the ground matching component 12 and supports the first group of frequency bands, it can support the communication of each frequency band in the first group of frequency bands at the same time. However, the antenna efficiencies of each frequency band in the first group of frequency bands are different. Therefore, the frequency band with the highest current antenna efficiency can be used as the main frequency band. Therefore, when the first matching unit 14 is further included, the fact that at least one frequency band in the frequency bands included in the first group of frequency bands has different antenna efficiencies when the first matching unit 14 is in different matching states may include: when the first matching unit 14 is in different matching states, the main frequency bands in the first group of frequency bands are different.

[0096] In some embodiments, the number of at least two matching states included in the first matching unit 14 may be the same as the number of at least two frequency bands included in the first group of frequency bands, and the at least two matching states of the first matching unit 14 correspond one-to-one to the at least two frequency bands included in the first group of frequency bands. When the first matching unit 14 is in a certain matching state, the corresponding frequency band is the main frequency band, that is, the frequency band with the highest antenna efficiency.

[0097] In some embodiments, when the first set of frequency bands includes a first frequency band, a second frequency band, and a third frequency band, at least two matching states included in the first matching unit 14 may include a first matching state, a second matching state, and a third matching state. When the first matching unit 14 is in the first matching state, the first frequency band is included in the corresponding first set of frequency bands at this time, and the antenna efficiency of the first frequency band is the highest. At this time, the first frequency band is the main frequency band. When the first matching unit 14 is in the second matching state, the second frequency band is included in the corresponding first set of frequency bands at this time, and the antenna efficiency of the second frequency band is the highest. At this time, the second frequency band is the main frequency band. When the first matching unit 14 is in the third matching state, the third frequency band is included in the corresponding first set of frequency bands at this time, and the antenna efficiency of the third frequency band is the highest. At this time, the third frequency band is the main frequency band.

[0098] Thus, when the best antenna efficiency of the first frequency band is required currently, the matching state of the first matching unit 14 can be adjusted to the first matching state, so that the first frequency band is the current main frequency band. When the best antenna efficiency of the second frequency band is required currently, the matching state of the first matching unit 14 can be adjusted to the second matching state, so that the second frequency band is the current main frequency band. And when the best antenna efficiency of the third frequency band is required currently, the matching state of the first matching unit 14 can be adjusted to the third matching state, so that the third frequency band is the current main frequency band.

[0099] In some embodiments, when the first matching unit 14 is in different matching states, at least one of the frequency bands included in the first set of frequency bands may also be different.

[0100] Among them, since the antenna efficiency of the supported frequency bands needs to be higher than a certain threshold, if it is lower than this threshold, the communication requirements cannot be met, and it is considered not supported. In some embodiments, when the first matching unit 14 is in different matching states, when the antenna efficiency of a certain frequency band is the highest, it may cause a large decrease in the antenna efficiency of another frequency band, or it may also cause the antenna efficiency of other frequency bands to meet the requirements. Thus, the frequency bands included in the first set of frequency bands will change.

[0101] Therefore, in the present application, by adjusting the matching state of the first matching unit 14, at least one of the frequency bands included in the first set of frequency bands can have different antenna efficiencies, or, further, at least one frequency band can also be different.

[0102] Among them, in the present application, the first frequency band, the second frequency band, the third frequency band, etc. in the first group of frequency bands are not specifically referring to certain fixed frequency bands. The first frequency band can be the frequency band supported by the first stub portion Z1 operating in the left-handed mode under the matching of the ground matching member 12. The second frequency band can be the frequency band supported by the second stub portion Z2 operating in the quarter-wavelength mode under the matching of the ground matching member 12. The third frequency band can be the frequency band supported by the first radiation stub 11 operating in the half-wavelength dipole mode under the matching of the ground matching member 12. Among them, according to the different matching states of the first matching unit 14, the three frequency bands in the corresponding first group of frequency bands can be the same or at least partially different. For example, when the first matching unit 14 includes a first matching state, a second matching state, and a third matching state, the three frequency bands in the first group of frequency bands corresponding to the first matching unit 14 in the first matching state can be the same as or at least one different from the three frequency bands in the first group of frequency bands corresponding to the first matching unit 14 in the second matching state.

[0103] Furthermore, taking the example that the first matching unit 14 can be in three matching states, for example, when the first matching unit 14 is in the first matching state, the corresponding first group of frequency bands includes a first frequency band, a second frequency band, and a third frequency band, and the antenna efficiency of the first frequency band is the highest. At this time, the first frequency band is the main frequency band. When the first matching unit 14 is in the second matching state, the corresponding first group of frequency bands includes a first frequency band, a second frequency band, and a third frequency band, and the antenna efficiency of the first frequency band is the highest. At this time, the first frequency band is the main frequency band, but the first frequency band corresponding to the first matching unit 14 in the second matching state is different from the first frequency band corresponding to the first matching unit 14 in the first matching state. Therefore, it is equivalent to still being able to adjust the radiation efficiency of different frequency bands.

[0104] Thus, in the present application, the first radiation stub 11 operates in at least two operating modes under the matching of the ground matching member 12, and can correspondingly support the transceiver of electromagnetic wave signals of at least two frequency bands. That is, the number of frequency bands included in the first group of frequency bands can depend on the number of at least two operating modes in which the first radiation stub 11 operates under the matching of the ground matching member 12. By adjusting the matching state of the first matching unit 14, the antenna efficiency of the frequency bands in the first group of frequency bands can be adjusted, so that the main frequency band is different. Thus, it can effectively meet the requirements for the communication quality of certain frequency bands in different scenarios, or further make at least one frequency band different, and increase the number of supported frequency bands.

[0105] In some embodiments, when adjusting the antenna efficiency of the frequency bands in the first group of frequency bands through the adjustment of the matching state of the first matching unit 14, such that the main frequency bands therein are different, or, further, other frequency bands can be supported, regardless of which matching state the matching state of the first matching unit 14 is, the first group of frequency bands always includes the WiFi 2.4G frequency band. Thus, the WiFi 2.4G frequency band can be maintained constantly, and the continuity of WiFi communication can be maintained, improving the quality of WiFi communication.

[0106] Please refer to Figure 5 , which is a schematic structural diagram of the first matching unit 14 in some embodiments of the present application.

[0107] In some embodiments, as Figure 5 described, the first matching unit 14 may include a first matching module 141. In some embodiments, the matching parameter value of the first matching module 141 is adjustable, such that the matching state of the first matching unit 14 is adjustable. That is, in some embodiments, when the matching parameter values of the first matching module 141 are different, the matching states of the first matching unit 14 are different, and the matching state of the first matching unit 14 can be made to be in a corresponding matching state by adjusting the matching parameter value of the first matching module 141.

[0108] In some embodiments, as Figure 5 shown, the first matching module 141 is connected between the first connection point P1 and the ground GND. The first connection point is a point in the connection path between the first feeding point F1 of the first radiation branch 11 and the first feed source 13, that is, it can be the connection node of the first feeding point F1 and the first feed source 13. Among them, as Figure 5 shown, the first matching module 141 may include a plurality of first matching branches 1411. The plurality of first matching branches 1411 are electrically connected between the first connection point P1 and the ground GND. Among them, the matching parameter values of at least some of the first matching branches 1411 are different, and each first matching branch 1411 can be in an enabled or disabled state. According to the difference in the first matching branches 1411 in the first matching module 141 that are in the enabled state or the difference in the number of the first matching branches 1411 in the enabled state, the overall matching parameter value presented by the first matching module 141 is different. Thus, the matching state of the first matching unit 14 can be made different.

[0109] Among them, the matching parameter value may include a capacitance value and / or an inductance value. The overall matching parameter value presented by the first matching module 141 may be the impedance value formed by the capacitance and / or inductance value of the first matching unit 14 as a whole.

[0110] Among them, when the matching parameter values presented by the first matching module 141 as a whole are different, the matching parameter values presented by the first matching unit 14 as a whole can be different, that is, the impedance values are different, so that better impedance matching in different frequency bands can be achieved, and the antenna efficiency of the frequency bands included in the first group of frequency bands can be adjusted.

[0111] In some embodiments, as Figure 5 shown, the first matching module 141 further includes a switch module 1412. Among them, the switch module 1412 is connected between the plurality of first matching branches 1411 and the ground GND, and the plurality of first matching branches 1411 are connected in parallel between the first connection point P1 and the switch module 1412; alternatively, the switch module 1412 is connected between the plurality of first matching branches 1411 and the first connection point P1, and the plurality of first matching branches 1411 are connected in parallel between the switch module 1412 and the ground GND. Among them, the switch module 1412 is used to conduct the electrical connection between the corresponding first matching branch 1411 and the first connection point P1 and the ground GND, so that the corresponding first matching branch 1411 is in an enabled state. Each first matching branch 1411 includes a matching element M1, and the matching element M1 includes a capacitor or an inductor. By the switch module 1412 conducting the electrical connection between different first matching branches 1411 and the first connection point P1 and the ground GND, the first matching branches 1411 in the enabled state can be switched.

[0112] Among them, Figure 5 taking the case where the switch module 1412 is connected between the plurality of first matching branches 1411 and the first connection point P1, and the plurality of first matching branches 1411 are connected in parallel between the switch module 1412 and the ground GND as an example for illustration.

[0113] As Figure 5 shown, in some embodiments, the switch module 1412 may include a plurality of matching switches M2. The plurality of matching switches M2 correspond to the plurality of first matching branches 1411 one by one, and each matching switch M2 is connected in series with the matching element M1 of the corresponding first matching branch 1411. In some embodiments, according to the switching of the on and off states of the matching switch M2, the first matching branches 1411 in the enabled state are switched.

[0114] That is, in some embodiments, as Figure 5As shown, the switch module 1412 may include a plurality of matching switches M2. Each matching switch M2 is connected in series with a matching element M1 of a corresponding first matching branch 1411 between the first connection point P1 and the ground GND. The matching parameter values of the matching elements M1 in different first matching branches 1411 are different. When the matching switch M2 corresponding to a certain first matching branch 1411 is turned on, the electrical connection between the first matching branch 1411, the first connection point P1, and the ground GND is turned on and is in an enabled state. The matching element M1 is electrically connected between the first connection point P1 and the ground GND and presents a corresponding matching parameter value. When the matching switch M2 corresponding to the first matching branch 1411 is turned off, the branch where the first matching branch 1411 is located is disconnected, and the first matching branch 1411 is in a disabled state.

[0115] Wherein, the matching element M1 may also include a capacitor and / or an inductor, and the matching parameter value of the matching element M1 may include a capacitance value and / or an inductance value.

[0116] Wherein, the different matching parameter values of the matching elements M1 in different first matching branches 1411 include different types and / or parameter values of the matching elements M1 in different first matching branches 1411.

[0117] For example, the matching element M1 of a certain first matching branch 1411 includes a capacitor, the matching element M1 of another first matching branch 1411 includes an inductor, and the matching element M1 of still another first matching branch 1411 also includes a capacitor, but the capacitance value of the capacitor included in other matching branches is different, and so on.

[0118] In some embodiments, the matching element M1 may include a single element or multiple elements. For example, it includes a single capacitor or inductor, or may include multiple capacitors / inductors connected in series or in parallel. Wherein, each matching element M1 includes the same type of element. For example, a certain matching element M1 may include one or more capacitors, or include one or more inductors.

[0119] Wherein, Figure 5 Taking the number of the first matching branches 1411 as three, and the matching elements M1 included in the three first matching branches 1411 are all inductors as an example for illustration.

[0120] Wherein, Figure 5 The first matching module 141 shown is merely an exemplary structure.

[0121] In some embodiments, the switch module 1412 may further include a single-pole multi-throw switch. For example, one end of the matching element M1 in each of the multiple first matching branches 1411 is connected to the ground GND. The single-pole multi-throw switch is used to selectively establish a connection between the other end of the matching element M1 in one of the first matching branches 1411 and the first connection point P1. Thus, the matching element M1 in one of the first matching branches 1411 is electrically connected between the first connection point P1 and the ground GND. Wherein, the single-pole multi-throw switch may include a fixed end and a throw end. The fixed end is fixedly connected to the first connection point P1, and the throw end can be selectively connected to the other end of the matching element M1 in one of the first matching branches 1411. Wherein, when the switch module 1412 is located between the multiple first matching branches 1411 and the ground GND, one end of the matching element M1 in each of the multiple first matching branches 1411 is connected to the first connection point P1. The fixed end of the single-pole multi-throw switch included in the switch module 1412 can be connected to the ground GND, and the throw end can be selectively connected to the other end of the matching element M1 in one of the first matching branches 1411.

[0122] Please refer to Figure 6 , which is another schematic structural diagram of the first matching unit 14 in some embodiments of the present application.

[0123] In some embodiments, as Figure 6 shown, the first matching unit 14 may further include a second matching module 142 and a third matching module 143.

[0124] Wherein, the second matching module 142 is connected between the first feeding point F1 and the first feed source 13, and the third matching module 143 is connected between the first feeding point F1, the first feed source 13 and the ground GND.

[0125] Wherein, the matching parameter value presented by the first matching unit 14 may be the matching parameter value presented by the first matching module 141, the second matching module 142 and the third matching module 143 as a whole.

[0126] In some embodiments, the matching parameter values of the second matching module 142 and the third matching module 143 may be fixed values. By changing the matching parameter value of the first matching module 141, the matching parameter value presented by the first matching unit 14 can be changed.

[0127] In some embodiments, the first matching module 141 may be connected to the second matching module 142 and the third matching module 143, and the overall cooperation forms the first matching unit 14. Among them, the first connection point P1 may be located within the second matching module 142, such as Figure 6 shown, the second matching module 142 may also be regarded as connected between the first feeding point F1, the first matching module 141, and the first feed source 13.

[0128] Please refer to Figure 7 for a further specific structural schematic diagram of the first matching unit 14 in some embodiments of the present application.

[0129] Among them, as Figure 7 shown, in some embodiments, the second matching module 142 includes a first capacitor C1 and a first inductor L1, and the first capacitor C1 and the first inductor L1 are connected in series between the first feed source 13 and the first feeding point F1.

[0130] As Figure 7 shown, in some embodiments, the third matching module 143 includes a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a second inductor L2. The second capacitor C2 is connected between the first feeding point F1 and the first inductor L1. The third capacitor C3 is connected between the second connection point P2 and the ground. The second connection point P2 is a point in the connection path between the second capacitor C2 and the first inductor L1, that is, the connection node between the second capacitor C2 and the first inductor L1. The fourth capacitor C4 and the second inductor L2 are connected in series between the second connection point P2 and the ground. That is, after the fourth capacitor C4 and the second inductor L2 are connected in series, they are connected in parallel with the third capacitor C3 between the second connection point P2 and the ground GND.

[0131] In some embodiments, the first connection point P1 is the connection point between the first capacitor C1 and the first inductor L1, that is, the connection node between the first capacitor C1 and the first inductor L1.

[0132] In some embodiments, as Figure 7 shown, the first matching module 141 further includes a second matching branch 1413. Among them, the second matching branch 1413 is connected between the switch module 1412 and the second connection point P2. The switch module 1412 can also choose to conduct or disconnect the connection between the first connection point P1 and the second matching branch 1413, so as to enable or disable the second matching branch 1413. For example, as Figure 7As shown, the second matching branch 1413 includes a fifth capacitor C5. The switch module 1412 may include a matching switch M3. The matching switch M3 may correspond to the second matching branch 1413, and is connected in series with the fifth capacitor C5 of the second matching branch 1413 between the first connection point P1 and the second connection point P2. When the matching switch M3 is turned on, the electrical connection between the second matching branch 1413, the first connection point P1, and the second connection point P2 is turned on, and it is in an enabled state. When the matching switch M3 is turned off, the branch where the second matching branch 1413 is located is disconnected, and the second matching branch 1413 is in a disabled state.

[0133] Among them, through the second matching branch 1413, the adjustment of the antenna efficiency of the corresponding frequency band can be further realized.

[0134] In some embodiments, as Figure 7 shown, the number of the plurality of first matching branches 1411 is three, and the matching elements M1 included are a third inductor L3, a fourth inductor L4, and a fifth inductor L5 respectively, that is, all are inductors.

[0135] Thus, through Figure 7 the structure shown, the impedance matching of the corresponding frequency band can be realized, and the antenna efficiency of the corresponding frequency band can be adjusted as needed.

[0136] In some embodiments, the capacitance value of the first capacitor C1 may be 1.5 pF (picofarad), the inductance value of the first inductor L1 may be 7.1 nH (nanohenry), the capacitance value of the second capacitor C2 may be 6.5 pF, the capacitance value of the third capacitor C3 may be 0.3 pF, the capacitance value of the fourth capacitor C4 may be 0.5 pF, the inductance value of the second inductor L2 may be 1.5 nH, the capacitance value of the fifth capacitor C5 may be 0.3 pF, the inductance value of the third inductor L3 may be 1 nH, the inductance value of the fourth inductor L4 may be 10 nH, and the inductance value of the fifth inductor L5 may be 1 nH.

[0137] In some embodiments, the above capacitors and inductors may also be other suitable values.

[0138] Please refer to Figure 8 , which is a further structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0139] Among them, as Figure 8As shown, in some embodiments, the antenna assembly 1 further includes a second radiation branch 15 and a second feeder 16. Among them, the second radiation branch 15 includes a second feeding point F2, the second feeder 16 is connected to the second feeding point F2, and the second radiation branch 15 supports a second set of frequency bands under the excitation of the second feeder 16. Among them, the distance between the second feeding point F2 and the first feeding point F1 is within a preset distance range.

[0140] Thus, in some embodiments, the antenna assembly 1 further includes a second radiation branch 15 and a second feeder 16. The second radiation branch 15 supports a second set of frequency bands under the excitation of the second feeder 16. Thus, it can effectively increase the frequency bands supported by the antenna assembly 1 to further meet the requirements of multiple frequency bands. In addition, since the distance between the second feeding point F2 and the first feeding point F1 is within a preset distance range, when the first feeder 13 and the second feeder 16 are arranged relatively close to each other, it is also convenient to ensure the connection between these feeding points and the corresponding feeders.

[0141] In some embodiments, the preset distance range is 10 mm (millimeters) to 35 mm. That is, in some embodiments, the distance between the second feeding point F2 and the first feeding point F1 can be within the range of 10 mm to 35 mm.

[0142] In some embodiments, the second radiation branch 15 works in at least one operating mode simultaneously under the excitation of the second feeder 16 to support a second set of frequency bands. Among them, the second set of frequency bands includes at least one frequency band, and each operating mode corresponds to a frequency band.

[0143] That is, in some embodiments, the second radiation branch 15 can also work in at least one operating mode simultaneously under the excitation of the second feeder 16 to support at least one frequency band in the second set of frequency bands.

[0144] In some embodiments, such as Figure 8As shown, the second radiating stub 15 includes an opposite third open end 15a and a first grounding end 15b. The first grounding end 15b is used for grounding. The second feeding point F2 is located between the third open end 15a and the first grounding end 15b. The at least one operating mode includes the IFA mode and the quarter-wavelength mode. The second set of frequency bands includes the fourth frequency band and the fifth frequency band. The second radiating stub 15 operates in the IFA mode under the excitation of the second feed 16 to support the fourth frequency band in the second set of frequency bands. The third stub portion Z3 between the second feeding point F2 and the third open end 15a of the second radiating stub 15 operates in the quarter-wavelength mode under the excitation of the second feed 16 to support the fifth frequency band in the second set of frequency bands, where the fifth frequency band is higher than the fourth frequency band.

[0145] That is, in some embodiments, the second radiating stub 15 integrally forms an inverted F antenna. Thus, the second radiating stub 15 operates in the IFA mode under the excitation of the second feed 16 to support the transceiver of electromagnetic wave signals in the fourth frequency band in the second set of frequency bands. The third stub portion Z3 between the second feeding point F2 and the third open end 15a of the second radiating stub 15 operates in the quarter-wavelength mode under the excitation of the second feed 16 to support the transceiver of electromagnetic wave signals in the fifth frequency band in the second set of frequency bands.

[0146] Among them, the IFA mode is a kind of quarter-wavelength mode. That is, the IFA mode is also a quarter-wavelength resonance method. That is, the equivalent electrical length of the second radiating stub 15 is one-fourth of the wavelength corresponding to the fourth frequency band and can resonate in the fourth frequency band. In addition, the equivalent electrical length of the stub portion between the second feeding point F2 and the third open end 15a of the second radiating stub 15 is one-fourth of the wavelength corresponding to the fifth frequency band and can resonate in the fifth frequency band.

[0147] In some embodiments, the equivalent electrical length of the second radiating stub 15 and the equivalent electrical length of the third stub portion Z3 can be the equivalent electrical lengths of the second radiating stub 15 and the third stub portion Z3 themselves. For example, in some embodiments, the equivalent electrical lengths of the second radiating stub 15 and the third stub portion Z3 can be their own equivalent electrical lengths, such as being substantially the same as the physical lengths of the second radiating stub 15 and the third stub portion Z3. In some embodiments, when a matching unit is included, the equivalent electrical length of the second radiating stub 15 and the equivalent electrical lengths of the third stub portion Z3, etc., can also be the equivalent electrical lengths equivalent under the cooperation / matching of the corresponding matching unit.

[0148] Among them, the second radiation stub 15 is bar-shaped. The physical length of the second radiation stub 15 and the physical length of the third stub portion Z3 may be dimensions along the length direction of the second radiation stub 15. The length direction of the second radiation stub 15 may be the extending direction of the longest side of the second radiation stub 15. When the second radiation stub 15 is straight bar-shaped, the longest side of the second radiation stub 15 is the longest straight line side of the second radiation stub 15. When the second radiation stub 15 is bent bar-shaped, the longest side of the second radiation stub 15 is the longest bent side of the second radiation stub 15.

[0149] Among them, Figure 8 In the figure, the case where the second radiation stub 15 is straight bar-shaped is schematically shown as an example.

[0150] In some embodiments, the antenna assembly 1 further includes a second matching unit 17. The second matching unit 17 is connected between the second feed 16 and the second feed point F2. The second radiation stub 15 supports the second set of frequency bands under the matching adjustment of the second matching unit 17.

[0151] That is, in some embodiments, the antenna assembly 1 further includes the second matching unit 17. The second radiation stub 15 supports the second set of frequency bands under the matching adjustment of the second matching unit 17. For example, the equivalent electrical length of the second radiation stub 15 in cooperation with the second matching unit 17 may be one-fourth of the wavelength corresponding to the fourth frequency band, and it can resonate at the fourth frequency band, and support the transceiver of electromagnetic wave signals in the fourth frequency band. The equivalent electrical length of the third stub portion Z3 between the second feed point F2 and the third open end 15a of the second radiation stub 15 in cooperation with the second matching unit 17 may be one-fourth of the wavelength corresponding to the fifth frequency band, and it can resonate at the fifth frequency band, and support the transceiver of electromagnetic wave signals in the fifth frequency band.

[0152] Among them, the second matching unit 17 may include a capacitor and / or an inductor to achieve the corresponding matching adjustment.

[0153] Please refer to Figure 9 , which is a schematic diagram of the second matching unit 17 in some embodiments of the present application. As Figure 9As shown, the second matching unit 17 may include a sixth capacitor C6, a sixth inductor L6, a seventh capacitor C7, and a seventh inductor L7. Among them, the sixth capacitor C6 and the sixth inductor L6 are connected in series between the second feeding point F2 of the second radiating stub 15 and the second feed source 16, and the seventh capacitor C7 and the seventh inductor L7 are connected between the third connection point P3 and the ground GND. Among them, the third connection point P3 may be a point on the connection path between the sixth capacitor C6 and the sixth inductor L6, that is, the connection node of the sixth capacitor C6 and the sixth inductor L6.

[0154] In some embodiments, the capacitance value of the sixth capacitor C6 may be 0.4 pF, the inductance value of the sixth inductor L6 may be 2.6 nH, the capacitance value of the seventh capacitor C7 may be 15 pF, and the inductance value of the seventh inductor L7 may be 11 nH.

[0155] Among them, Figure 9 merely as an example, in some embodiments, the second matching unit 17 may further include other structures. For example, it may include a parallel-connected inductor and capacitor, or a series-connected inductor and capacitor, or a structure in which an inductor and a capacitor are connected in parallel and then connected in series with an inductor or a capacitor, or it may also be a structure in which a series branch of a series-connected capacitor and inductor is connected in parallel with a capacitor or / inductor, and so on.

[0156] Please refer back to Figure 8 , in some embodiments, as Figure 8 shown, the third open end 15a of the second radiating stub 15 is adjacent to and spaced from the first open end 11a of the first radiating stub 11. A partial stub of the first radiating stub 11 also serves as a parasitic stub of the second radiating stub 15 and supports the fifth frequency band under the coupled excitation of the second feed source 16.

[0157] That is, in some embodiments, a partial stub of the first radiating stub 11 also serves as a parasitic stub of the second radiating stub 15, so that it can support the fifth frequency band under the coupled excitation of the second feed source 16, and can effectively improve the antenna efficiency of the fifth frequency band.

[0158] In some embodiments, the first radiating stub 11 further includes a fourth stub portion Z4 located between the first feeding point F1 and the first open end. Among them, the fourth stub portion Z4 may serve as a parasitic stub of the second radiating stub 15 and support the fifth frequency band under the coupled excitation of the second feed source 16.

[0159] That is, in some embodiments, the fourth stub portion Z4 between the first feeding point F1 and the first open end may serve as a parasitic stub of the second radiating stub 15.

[0160] In some embodiments, the fourth stub portion Z4 can be grounded through the third matching module 143 in the first matching unit 14 to form a structure similar to an IFA with one end open and the other end grounded, and can be coupled and excited by the second feed 16 to resonate in the fifth frequency band. In some embodiments, the equivalent electrical length of the fourth stub portion Z4 in cooperation with the third matching module 143 can be one-quarter of the wavelength corresponding to the fifth frequency band, and can resonate in the fifth frequency band.

[0161] For example, as described above, in some embodiments, the third matching module 143 includes a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a second inductor L2. The second capacitor C2 is connected between the first feeding point F1 and the first inductor L1. The third capacitor C3 is connected between the second connection point P2 and the ground. The second connection point P2 is a point in the connection path of the second capacitor C2 and the first inductor L1, that is, the connection node of the second capacitor C2 and the first inductor L1. The fourth capacitor C4 and the second inductor L2 are connected in series between the second connection point P2 and the ground. That is, after the fourth capacitor C4 and the second inductor L2 are connected in series, they are connected in parallel with the third capacitor C3 between the second connection point P2 and the ground GND. Therefore, the fourth stub portion Z4 can be connected to the ground GND through the second capacitor C2, the third capacitor C3, the fourth capacitor C4, and the second inductor L2, and impedance matching can be performed through the second capacitor C2, the third capacitor C3, the fourth capacitor C4, and the second inductor L2, and can resonate in the fifth frequency band.

[0162] In some embodiments, the frequency range corresponding to the second group of frequency bands is higher than the frequency range corresponding to the first group of frequency bands.

[0163] That is, in some embodiments, the frequency range corresponding to the second group of frequency bands is higher than the frequency range corresponding to the first group of frequency bands. Thus, higher-frequency band coverage can be achieved. For example, as described above, the frequency range corresponding to the first group of frequency bands is 1 GHz to 3 GHz. In some embodiments, the frequency range corresponding to the second group of frequency bands can be a frequency range higher than 3 GHz, that is, can be a super-high frequency band.

[0164] In some embodiments, the fourth frequency band is a 5G N78 (resonant frequency is about 3.5 GHz), N79 frequency band (resonant frequency is about 4.5 GHz), etc., 5G NR frequency bands, and the fifth frequency band can be a WiFi 5G frequency band (resonant frequency is about 5.5 GHz). Thus, the requirements of 5G communication can be met, and the performance of WiFi communication can be improved.

[0165] Among them, Figure 8Taking, for example, adding structures such as the second radiation branch 15 and the second feeder 16 on the basis of the antenna assembly 1 shown in Figure 4 as an example for illustration. Obviously, Figure 8 structures such as the second radiation branch 15 and the second feeder 16 can also be added on the basis of any of the foregoing embodiments. Among them, Figure 8 for other structures shown in, reference can be made to the relevant content in any of the foregoing embodiments.

[0166] Please refer to Figure 10 , which is a further structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0167] In some embodiments, as shown in Figure 10 , the antenna assembly 1 further includes a parasitic branch 18. Among them, the parasitic branch 18 is adjacent to and spaced from the second open end 11b of the first radiation branch 11, and serves as a parasitic branch of the first radiation branch 11.

[0168] In some embodiments, the parasitic branch 18 can specifically serve as a parasitic branch of the second frequency band supported by the cooperation of the second branch portion Z2 of the first radiation branch 11 and the ground matching member 12, and can support the transceiver of electromagnetic wave signals in the second frequency band under the coupled excitation of the first feeder 13, thereby improving the radiation performance / antenna performance of the second frequency band.

[0169] That is, in some implementations, as described above, the second branch portion Z2 is a branch portion located between the second open end 11b of the first radiation branch 11 and the first ground point G1. Therefore, when the parasitic branch 18 is adjacent to and spaced from the second open end 11b of the first radiation branch 11, mainly the feeding signal of the second frequency band supported by the cooperation of the second branch portion Z2 and the ground matching member 12 is coupled to the parasitic branch 18, and the parasitic branch 18 is coupled to resonate in the second frequency band, thereby supporting the transceiver of electromagnetic wave signals in the second frequency band.

[0170] Among them, as shown in Figure 10 , the parasitic branch 18 includes a fourth open end 18a and a second ground end 18b. The fourth open end 18a of the parasitic branch 18 is adjacent to and spaced from the second open end 11b of the first radiation branch 11. The parasitic branch 18 can also form a structure similar to an IFA with one end open and the other end grounded, and can be coupled and excited by the first feeder 13 to resonate in the second frequency band. In some embodiments, the equivalent electrical length of the parasitic branch 18 can be one-fourth of the wavelength corresponding to the second frequency band, and can resonate in the second frequency band.

[0171] Therefore, by adding the parasitic branches 18, the antenna performance in the corresponding frequency band can be effectively improved.

[0172] in, Figure 10 For Figure 8 The antenna assembly 1 shown is further provided with the parasitic branch 18 and other structures as an example. Obviously, Figure 10 It is also possible to add structures such as parasitic branches 18 on the basis of any of the above embodiments. Figure 10 For other structures shown in , reference may be made to the relevant contents of any of the foregoing embodiments.

[0173] See also Figure 11 , which is yet another further structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0174] in, Figure 11 For Figure 4 The parasitic branch 18 is schematically shown on the basis of the antenna assembly 1 shown. That is, in some embodiments, the antenna assembly 1 may also not include Figure 10 The second radiation branch 15 and other structures shown.

[0175] like Figure 11 As shown, the parasitic branch 18 is adjacent to and spaced from the second open-circuit end 11b of the first radiation branch 11, and serves as a parasitic branch of the first radiation branch 11. That is, the parasitic branch 18 can be specifically used as a parasitic branch of the second frequency band supported by the second branch part Z2 of the first radiation branch 11 in cooperation with the ground matching component 12, and can support the reception and transmission of electromagnetic wave signals of the second frequency band under the coupling excitation of the first feed source 13, thereby improving the radiation performance / antenna performance of the second frequency band.

[0176] In this application, two objects being close or adjacent may refer to a distance between the two objects being less than a certain distance, for example, less than 1 centimeter, and so on.

[0177] Thus, the antenna assembly 1 of the present application is connected between the first grounding point G1 and the ground GND through the grounding matching member 12, so that the first radiation branch 11 and the grounding matching member 12 work together in at least two operating modes, and each operating mode supports at least one frequency band. The at least two operating modes include at least two of the left-handed mode, the quarter-wavelength mode, and the half-wavelength dipole mode. Thus, a first set of frequency bands including at least two frequency bands can be supported, and the requirement of multiple frequency bands can be met without increasing the size of the radiation branch 11. In addition, for the antenna assembly 1 of the present application, by adjusting the matching state of the first matching unit 14, the antenna efficiency of the frequency bands in the first set of frequency bands can be adjusted, so that the main frequency bands are different. Thus, the communication quality requirements for some of the frequency bands in different scenarios can be effectively met, or other frequency bands can be further supported, and the number of supported frequency bands can be increased. In addition, the antenna assembly 1 of the present application further includes a second radiation branch 15 and a second feed source 16. The second radiation branch 15 supports a second set of frequency bands under the excitation of the second feed source 16. Thus, the frequency bands supported by the antenna assembly 1 can be effectively increased, and the requirement of multiple frequency bands can be further met. In addition, since the distance between the second feeding point F2 and the first feeding point F1 is within a preset distance range, when the first feed source 13 and the second feed source 16 are arranged relatively close to each other, it is also convenient to ensure the connection of these feeding points to the corresponding feed sources.

[0178] Please refer to Figure 12 , which is a structural block diagram of the electronic device 100 in some embodiments of the present application. Among them, as Figure 12 shown, the electronic device 100 may include the antenna assembly 1 described in any of the foregoing embodiments.

[0179] Thus, the electronic device 100 is equipped with the antenna assembly 1 in any of the foregoing embodiments, and is connected between the first ground point G1 and the ground GND through the ground matching member 12, so that the first radiation branch 11 and the ground matching member 12 work together in at least two operating modes, and at least one frequency band is supported in each operating mode, and the at least two operating modes include at least two of the left-handed mode, the quarter-wavelength mode, and the half-wavelength dipole mode. Thus, a first set of frequency bands including at least two frequency bands can be supported, and the requirement of multiple frequency bands can be met without increasing the size of the radiation branch of the first radiation branch 11. In addition, for the antenna assembly 1 of the present application, by adjusting the matching state of the first matching unit 14, the antenna efficiency of the frequency bands in the first set of frequency bands can be adjusted, so that the main frequency bands are different. Thus, the communication quality requirements for some of the frequency bands in different scenarios can be effectively met, or other frequency bands can be further supported to increase the number of supported frequency bands. In addition, the antenna assembly 1 of the present application further includes a second radiation branch 15 and a second feed 16. The second radiation branch 15 supports a second set of frequency bands under the excitation of the second feed 16. Thus, the frequency bands supported by the antenna assembly 1 can be effectively increased, and the requirement of multiple frequency bands can be further met. In addition, since the distance between the second feeding point F2 and the first feeding point F1 is within a preset distance range, when the first feed 13 and the second feed 16 are arranged relatively close, it is also convenient to ensure the connection of these feeding points to the corresponding feeds.

[0180] Please refer to Figure 13 , which is a schematic plan view of the electronic device 100 in some embodiments of the present application. Among them, Figure 13 may be a perspective view from the back side of the electronic device 100, that is, from the viewing direction away from the display screen, showing a top view of the structure of the antenna assembly 1. Among them, the foregoing Figure 1 - Figure 2 The antenna assembly 1 shown in the figures such as Figure 1 - Figure 2 may also be the antenna assembly 1 from the perspective of viewing from the back side of the electronic device 100, and the antenna assembly 1 shown in the foregoing Figure 13 and other figures is a schematic diagram rotated 90° clockwise with respect to

[0181] Among them, Figure 13 The electronic device 100 in Figure 8 is schematically shown by taking the antenna assembly 1 shown in

[0182] Among them, as Figure 13 shown, the electronic device 100 further includes a frame B1, and at least the first radiation branch 11 is disposed on the frame B1 of the electronic device 100.

[0183] That is, in some embodiments, the first radiating stub 11 may be specifically disposed at the frame B1 of the electronic device 100. In some embodiments, when the antenna assembly 1 further includes stubs such as the second radiating stub 15, the second radiating stub 15 and other stubs may also be disposed at the frame B1 of the electronic device 100.

[0184] Wherein, as Figure 13 shown, there is a gap X1 between the first radiating stub 11 and an adjacent stub. In some embodiments, when the antenna assembly 1 further includes the second radiating stub 15, there is a gap X1 between the first radiating stub 11 and the second radiating stub 15, and they are spaced apart by the gap X1. Wherein, Figure 13 the first radiating stub 11 and the second radiating stub 15 are also shown simultaneously.

[0185] In some embodiments, as Figure 13 shown, the frame B1 of the electronic device 100 is a metal frame, and the first radiating stub 11 and the second radiating stub 15 are metal frame segments formed by opening the gap X1 in the metal frame of the electronic device 100.

[0186] That is, at least the first radiating stub 11 is disposed at the frame B1 of the electronic device 100, or the frame B1 of the electronic device 100 is a metal frame, and at least the first radiating stub 11 is a metal frame segment formed by opening the gap X1 in the metal frame of the electronic device 100.

[0187] Wherein, in some other embodiments, the frame B1 of the electronic device 100 is a non-metal frame, and the first radiating stub 11 and the second radiating stub 15 are metal segments disposed in the frame of the electronic device 100.

[0188] That is, in some other embodiments, the first radiating stub 11 being disposed at the frame B1 of the electronic device 100 may mean that the frame B1 of the electronic device 100 may also be a non-metal frame with low electrical conductivity such as plastic, plastic, or ceramic. The first radiating stub 11 and the second radiating stub 15 are metal segments disposed in the frame B1 of the electronic device 100. Wherein, the first radiating stub 11 and the second radiating stub 15 may be embedded in the frame of the electronic device 100 or disposed on the inner side surface of the frame of the electronic device 100.

[0189] Among them, for the electronic device 100 of the present application, when the first radiation branch 11 and the second radiation branch 15 are disposed at the frame B1 of the electronic device 100, due to the compact structure and small occupied space, the utilization rate of the mobile phone frame area can be further improved, and higher degree-of-freedom support can be provided for antenna design in complex environments.

[0190] As Figure 13 shown, the frame B1 includes two opposite long frames B11 and two opposite short frames B12. Among them, the first radiation branch 11 and the second radiation branch 15 can be disposed on one of the long frames B11.

[0191] Among them, as described above, Figure 13 taking the electronic device 100 including Figure 8 the antenna assembly 1 shown as an example for illustration. Obviously, the electronic device 100 can include the antenna assembly 1 in any of the foregoing embodiments. Among them, Figure 13 some reference numerals of the antenna assembly 1 are omitted, and specific details can be referred to Figure 8 .

[0192] In some embodiments, the surfaces of the first radiation branch 11 and the second radiation branch 15 with the largest area are parallel to the frame surface of the frame B1, where the frame surface of the frame B1 is substantially perpendicular to the plane of the display screen of the electronic device 100.

[0193] Among them, as Figure 13 described, the electronic device 100 includes a top end D11, a bottom end D12, and two side ends D13, D14. Among them, the two long frames B11 are the frames located at the two side ends D13, D14 of the electronic device 100 respectively, and the two short frames B12 are the frames located at the top end D11 and the bottom end D12 of the electronic device 100 respectively.

[0194] In some embodiments, both the first radiation branch 11 and the second radiation branch 15 are straight bars. Among them, both the first radiation branch 11 and the second radiation branch 15 are disposed on one of the side ends of the electronic device 100, for example, on the side end D13. Among them, as Figure 13 shown, in some embodiments, the second radiation branch 15 is closer to the top end D11 of the electronic device 100 than the first radiation branch 11.

[0195] Among them, Figure 13This is just an example. In some embodiments, the first radiating stub 11 may also be bent. The first radiating stub 11 includes two sub-stubs connected at an angle. One sub-stub of the first radiating stub 11 is disposed at the top end D11 of the electronic device 100, and the other sub-stub of the first radiating stub 11 is disposed at a side end of the electronic device 100, such as on the side end D13. The second radiating stub 15 is disposed at a position on the side end D13 close to the top end D11. That is, in some embodiments, by setting the first radiating stub 11 as two sub-stubs connected at an angle, the apex position can be utilized to avoid being held by the user, thereby improving the radiation performance. Alternatively, in some embodiments, both the first radiating stub 11 and the second radiating stub 15 are disposed at one side end of the electronic device 100, such as on the side end D13, and the first radiating stub 11 is closer to the top end D11 of the electronic device 100 than the second radiating stub 15.

[0196] Herein, when describing the electronic device 100 in the embodiments of the present application, the orientation terms such as "top" and "bottom" are mainly described based on the orientation when the user holds the electronic device 100. The position facing the top side of the electronic device 100 is defined as "top", and the position facing the bottom side of the electronic device 100 is defined as "bottom". It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the orientation of the electronic device 100 in the actual application scenario. In some embodiments, the bottom end D12 of the electronic device 100 is the end provided with a headphone jack and a USB jack, and the top end D11 of the electronic device 100 is the other end opposite to the end provided with the headphone jack and the USB jack, which may also refer to the end provided with a camera, a receiver, etc.

[0197] Such as Figure 13 As shown, in some embodiments, the electronic device further includes a ground plane 101, and the aforementioned ground GND may be the ground plane 101.

[0198] In some embodiments, the aforementioned respective elements are grounded. For example, the grounding of the aforementioned grounding end, etc. may be achieved by connecting to the ground plane 101. In some embodiments, the first radiating stub 11, etc. can also effectively excite the floor current of the ground plane 101 under the excitation of the corresponding feeding unit, thereby effectively improving the antenna radiation performance in the low-frequency band.

[0199] That is, in some embodiments, when the first radiation stub 11 operates in a quarter-wavelength mode to support the transceiver of electromagnetic wave signals in a low-frequency band, in addition to generating its own feeding current, the first radiation stub 11 also excites the ground plane 101 to generate a ground current, thereby effectively improving the antenna radiation performance in the low-frequency band.

[0200] As Figure 13 shown, the electronic device 100 further includes a main board 102. Among them, the aforementioned first feeder 13, second feeder 16, first matching unit 14, etc. may be disposed on the main board 102. In some embodiments, the ground plane 101 may be at least a partial area of the ground layer on the main board 102.

[0201] In some embodiments, as described above, when the antenna assembly 1 further includes a second radiation stub 15, the first radiation stub 11 and the second radiation stub 15 are disposed on the same side edge end, such as side edge end D13. In some embodiments, the projections of the first feeding point F1 of the first radiation stub 11 and the second feeding point F2 of the second radiation stub 15 on the side facing the main board 102 are both located within the main board 102.

[0202] Among them, the projections of the first feeding point F1 of the first radiation stub 11 and the second feeding point F2 of the second radiation stub 15 on the side facing the main board 102 may refer to the projections of the first feeding point F1 of the first radiation stub 11 and the second feeding point F2 of the second radiation stub 15 along a first direction on the side facing the main board 102. The first direction may be a direction parallel to the direction from one side edge end D13 to another side edge end D14, that is, the first direction is parallel to the direction from one side edge end D13 to another side edge end D14. Therefore, the projections of the first feeding point F1 of the first radiation stub 11 and the second feeding point F2 of the second radiation stub 15 on the side facing the main board 102 being both located within the main board 102 may also mean that the first feeding point F1 of the first radiation stub 11 and the second feeding point F2 of the second radiation stub 15 are directly opposite to the corresponding positions on the main board 102.

[0203] Thus, with the current demand for large battery capacity, the size of the main board is getting smaller and smaller. For example, when the size of the main board in the direction parallel to the side plate end becomes smaller and smaller, through the antenna assembly 1 of the present application, the first feeding point F1 and the second radiation branch 15 can be made to approach each other. As described above, the distance between the second feeding point F2 and the first feeding point F1 can be in the range of 10 mm to 35 mm. Therefore, the projections of the first feeding point F1 of the first radiation branch 11 and the second feeding point F2 of the second radiation branch 15 on the side where the main board 102 is located are both within the main board 102, which facilitates the feeding connection through a feeding elastic sheet or the like, that is, connecting to a feeding source located on the main board 102, without adding transmission wires such as coaxial cables, which can effectively reduce transmission loss and save costs.

[0204] Among them, as Figure 13 shown, the electronic device 100 further includes a middle frame 103, the middle frame 103 is used to support structures such as a display screen, and the middle frame 103 serves as the ground for the whole machine. The grounding layer on the main board 102 is connected to the middle frame 103 to provide a ground potential. Among them, in some embodiments, the grounding plate 101 can be at least part of the middle frame 103, and the aforementioned ground GND can also be at least part of the middle frame 103. Among them, Figure 11 in, the case where the grounding plate 101 is the middle frame 103 is taken as an example for illustration.

[0205] Among them, other antenna radiation branches can also be provided on the frame B1 of the electronic device 100, and these antenna radiation branches are spaced apart by a gap X1. Since it has nothing to do with the improvement of the present application, these other antenna radiation branches are not illustrated.

[0206] Please refer to Figure 14 , which is a schematic diagram of the current distribution when the antenna assembly 1 of the electronic device 100 in some embodiments of the present application operates in the first frequency band.

[0207] Among them, Figure 14 specifically, it is a schematic diagram of the current distribution in the first frequency band obtained by simulation testing with the electronic device 100 shown in Figure 13 operating in the first frequency band as an example.

[0208] Among them, as described above, under the structure of the electronic device 100 shown in Figure 13 , the first branch part Z1 of the first radiation branch 11 and the grounding matching part 12 cooperate to work in the first mode, such as the left-handed mode, to support the transceiver of electromagnetic wave signals in the first frequency band, that is, to operate in the first frequency band.

[0209] Among them, Figure 14Among them, the redder the area, that is, the darker the color, the greater the corresponding current intensity, which is also the main radiation area of the electromagnetic wave signal in the first frequency band. As Figure 14 shown, the current i1 in the first frequency band is mainly distributed on the first branch part Z1 of the first radiation branch 11 and the ground matching part 12. That is, as described above, the first branch part Z1 of the first radiation branch 11 and the ground matching part 12 cooperate to work in the first mode under the excitation of the first feeder 13 to support the transceiver of the electromagnetic wave signal in the first frequency band.

[0210] Please refer to Figure 15 , which is a schematic diagram of the current distribution when the antenna assembly 1 of the electronic device 100 in some embodiments of the present application works in the second frequency band.

[0211] Among them, Figure 15 specifically, it is a schematic diagram of the current distribution in the first frequency band obtained by taking the electronic device 100 shown in Figure 13 as an example and performing simulation tests when it works in the second frequency band.

[0212] Among them, as described above, under the structure of the electronic device 100 shown in Figure 13 , the second branch part Z2 of the first radiation branch 11 and the ground matching part 12 cooperate to work in the second mode, such as the quarter-wavelength mode, to support the transceiver of the electromagnetic wave signal in the second frequency band, that is, to work in the second frequency band.

[0213] Among them, Figure 15 among them, the redder the area, that is, the darker the color, the greater the corresponding current intensity, which is also the main radiation area of the electromagnetic wave signal in the second frequency band. As Figure 15 shown, the current i2 in the second frequency band is mainly distributed on the second branch part Z2 of the first radiation branch 11 and the ground matching part 12. That is, as described above, the second branch part Z2 of the first radiation branch 11 and the ground matching part 12 cooperate to work in the second mode under the excitation of the first feeder 13 to support the transceiver of the electromagnetic wave signal in the second frequency band.

[0214] Please refer to Figure 16 , which is a schematic diagram of the current distribution when the antenna assembly 1 of the electronic device 100 in some embodiments of the present application works in the third frequency band.

[0215] Among them, Figure 16 specifically, it is a schematic diagram of the current distribution in the first frequency band obtained by taking the electronic device 100 shown in Figure 13 as an example and performing simulation tests when it works in the second frequency band.

[0216] Among them, as described above, under the structure of the electronic device 100 shown in Figure 13Under the structure of the electronic device 100 shown, the entire branch of the first radiation branch 11 operates in the third mode, such as the half-wavelength dipole mode, in cooperation with the ground matching member 12, and supports the transceiver of electromagnetic wave signals in the third frequency band, that is, operates in the third frequency band.

[0217] Among them, Figure 16 In, the redder the area, that is, the darker the area, the greater the corresponding current intensity, that is, the main radiation area of the electromagnetic wave signal in the third frequency band. As Figure 16 shown, the current i3 in the third frequency band is mainly distributed on the first radiation branch 11, that is, as described above, the first radiation branch 11 operates in the third mode under the cooperation of the ground matching member 12 and is excited by the first feeder 13 to support the transceiver of electromagnetic wave signals in the third frequency band.

[0218] Among them, as Figure 16 shown, the directions of the current i3 in the third frequency band on the first radiation branch 11 are all the same.

[0219] Among them, in some embodiments, since the first radiation branch 11 is disposed at the side end of the electronic device 100, it may often be designed together with the side keys of the electronic device 100. The presence of the keys will cause the length of the first radiation branch 11 to be relatively long compared to the half-wavelength of the third frequency band. Therefore, when there is no ground matching member 12, there will be current anti-phase points on the first radiation branch 11, and the anti-phase current will affect the radiation efficiency of the antenna. In this application, the first ground point G1 is close to the current anti-phase point in the third frequency band. By adding the ground matching member 12 between the first ground point G1 and the ground, since the ground matching member 12 is equivalent to an inductor, it is equivalent to connecting an inductor to the ground at the current anti-phase point, which can make the currents on both sides of this point become in-phase currents again, improving the radiation efficiency / antenna efficiency in the third frequency band. As described above, from another perspective, since the ground matching member 12 is equivalent to an inductor, it can also play a role in matching adjustment, so that the equivalent electrical length of the first radiation branch 11 can be equal to the half-wavelength of the third frequency band, ensuring in-phase currents, and thus the currents have the same direction.

[0220] Among them, Figure 14 - Figure 16 It can be a schematic diagram of the current distribution when the antenna assembly 1 operates in each corresponding frequency band when the first matching unit 14 is in any matching state.

[0221] Please refer to Figure 17 , which is a schematic diagram of the antenna efficiency of the antenna assembly 1 operating in each frequency band when the first matching unit 14 of the antenna assembly 1 of the electronic device 100 in some embodiments of the present application is in different matching states.

[0222] In some embodiments, Figure 17 Specifically, when Figure 13 the first matching unit 14 of the illustrated electronic device 100 is in different matching states, the schematic diagram of the antenna efficiency of each frequency band in which the antenna assembly 1 operates.

[0223] Among them, the antenna efficiency includes the total system efficiency and the radiation efficiency. Figure 17 It shows the radiation efficiency curve St1 (blue dashed line in the figure) and the total system efficiency curve Sr1 (blue solid line in the figure) of the first group of frequency bands when the first matching unit 14 is in the first matching state, and the radiation efficiency curve St2 (red dashed line in the figure) and the total system efficiency curve Sr2 (red solid line in the figure) of the first group of frequency bands when the first matching unit 14 is in the second matching state, and the radiation efficiency curve St3 (green dashed line in the figure) and the total system efficiency curve Sr3 (green solid line in the figure) of the first group of frequency bands when the first matching unit 14 is in the third matching state, and the radiation efficiency curve St4 (black dashed line in the figure) and the total system efficiency curve Sr4 (black solid line in the figure) of the second group of frequency bands.

[0224] In some embodiments, Figure 17 Taking the first frequency band of the first group of frequency bands as the GPS L1 frequency band (resonant frequency is about 1.5 GHz), the second frequency band as the B3 frequency band (resonant frequency is about 1.8 GHz), and the third frequency band as the frequency band covering the B40 frequency band (resonant frequency is about 2.35 GHz), the B41 frequency band (resonant frequency is about 2.6 GHz) and the WiFi 2.4G frequency band when the first matching unit 14 is in the first matching state as an example, and taking the first frequency band of the first group of frequency bands as the B3 frequency band, the second frequency band as the B1 frequency band (frequency range is about 2.1 GHz), and the third frequency band as the frequency band covering the B40 frequency band, the B41 frequency band and the WiFi 2.4G frequency band when the first matching unit 14 is in the second matching state and the third frequency band as an example, and taking the fourth frequency band in the second group of frequency bands as the N78 frequency band and the fifth frequency band as the WiFi 5G frequency band as an example, it is illustrated.

[0225] That is, in some embodiments, the first group of frequency bands corresponding to the first matching unit 14 in the second matching state and the first group of frequency bands corresponding to the first matching unit 14 in the third matching state may be the same, while there may be one difference in the first group of frequency bands corresponding to the first matching unit 14 in the first matching state.

[0226] Such as Figure 17As shown, when the first matching unit 14 is in the first matching state, the radiation efficiency and the total system efficiency of the antenna assembly 1 are relatively high when operating in the B3 band. When the first matching unit 14 is in the second matching state, the radiation efficiency and the total system efficiency of the antenna assembly 1 are relatively high when operating in the B1 band. When the first matching unit 14 is in the third matching state, the radiation efficiency and the total system efficiency of the antenna assembly 1 are relatively high when operating in the frequency band range covering the B40 band, the B41 band, and the WiFi 2.4G band.

[0227] It can be seen that in this application, by adjusting the matching state of the first matching unit 14, the radiation efficiency of the corresponding frequency band can be adjusted, so that different frequency bands serve as the main frequency bands in the first group of frequency bands, meeting the requirements for the communication quality of different frequency bands in different scenarios.

[0228] And as Figure 17 shown, the radiation efficiency and the total system efficiency of the second group of frequency bands are both relatively high and are not affected by the change in the matching state of the first matching unit 14. It can be seen that since the frequency bands of the first group and the second group are far apart, the interference between them is small.

[0229] Please refer to Figure 18 , which is a schematic diagram of the return loss of each frequency band in which the antenna assembly 1 of the electronic device 100 in some embodiments of this application operates when the first matching unit 14 is in different matching states.

[0230] In some embodiments, Figure 17 Specifically, it is also a schematic diagram of the return loss of each frequency band in which the antenna assembly 1 operates when the first matching unit 14 of the electronic device 100 shown in Figure 13 is in different matching states.

[0231] Among them, Figure 18 shows the return loss curve S11-1 of the first group of frequency bands when the first matching unit 14 is in the first matching state, the return loss curve S11-2 of the first group of frequency bands when the first matching unit 14 is in the second matching state, the return loss curve S11-3 of the first group of frequency bands when the first matching unit 14 is in the third matching state, and the return loss curve S11-4 of the second group of frequency bands.

[0232] In some embodiments, Figure 18Similarly, when the first matching unit 14 is in the first matching state, the first frequency band of the first group of frequency bands is the GPS L1 frequency band, the second frequency band is the B3 frequency band (resonant frequency is approximately 1.8 GHz), and the third frequency band is a frequency band that simultaneously covers the B40 frequency band (resonant frequency is approximately 2.35 GHz), the B41 frequency band (resonant frequency is approximately 2.6 GHz), and the WiFi 2.4G frequency band. Also, when the first matching unit 14 is in the second matching state and the third frequency band, the first frequency band of the first group of frequency bands is the B3 frequency band, the second frequency band is the B1 frequency band (frequency range is approximately 2.1 GHz), and the third frequency band is a frequency band that simultaneously covers the B40 frequency band, the B41 frequency band, and the WiFi 2.4G frequency band. And taking the fourth frequency band in the second group of frequency bands as the N78 frequency band and the fifth frequency band as the WiFi 5G frequency band as an example, an illustration is made.

[0233] As Figure 18 shown, when the first matching unit 14 is in the first matching state, the return loss of the antenna assembly 1 when operating in the B3 frequency band is relatively low. When the first matching unit 14 is in the second matching state, the return loss of the antenna assembly 1 when operating in the B1 frequency band is relatively low. When the first matching unit 14 is in the third matching state, the return loss of the antenna assembly 1 when operating in the frequency band range that covers the B40 frequency band, the B41 frequency band, and the WiFi 2.4G frequency band is relatively low.

[0234] Among them, a low return loss indicates a small loss, and at this time, the corresponding antenna efficiency is relatively high. From this, it can also be seen that in this application, by adjusting the matching state of the first matching unit 14, the radiation efficiency of the corresponding frequency band can be adjusted, so that different frequency bands serve as the main frequency bands in the first group of frequency bands, and the communication quality requirements for different frequency bands in different scenarios can be met.

[0235] And as Figure 18 shown, the return losses of the second group of frequency bands are all relatively low, that is, the radiation efficiency and the total system efficiency are both relatively high, and are not affected by the change of the matching state of the first matching unit 14. It can be seen that since the frequency bands of the first group of frequency bands and the second group of frequency bands are far apart, the interference between them is relatively small.

[0236] Among them, in some embodiments, the main frequency band in the first group of frequency bands can be switched according to the different current application scenarios of the electronic device 100. That is, according to the current application scenario of the electronic device 100, the first matching unit 14 can be made to be in the corresponding matching state, so that the main frequency band in the first group of frequency bands is the frequency band with better radiation efficiency required by the current application scenario.

[0237] In some embodiments, as described above, the antenna assembly 1 further includes the switch module 1412. The switch module 1412 can enable the corresponding first matching branch 1411 according to the current application scenario of the electronic device 100, so that the first matching unit 14 is in the corresponding matching state, and the main frequency band in the first group of frequency bands is the frequency band with better radiation efficiency required for the current application scenario.

[0238] Please refer to Figure 19 , for a more specific structural block diagram of the electronic device 100 in some embodiments of the present application. As Figure 19 shown, the electronic device 100 further includes a controller 2.

[0239] Among them, the controller 2 is at least used to control a certain frequency band in the first group of frequency bands as the main frequency band according to the current application scenario of the electronic device 100. That is, the controller 2 can control the switch module 1412 to establish a connection between the corresponding first matching branch 1411 and the ground, so that the first matching unit 14 is in the corresponding matching state, and the main frequency band in the first group of frequency bands is the frequency band with better radiation efficiency required for the current application scenario.

[0240] In some embodiments, as described above, the application scenarios of the electronic device 100 may include a game scenario, a call scenario, a GPS positioning scenario, etc. The controller 2 can control the first matching unit 14 to be in the corresponding matching state according to the frequency band with better quality required by the current application scenario, so that the main frequency band in the first group of frequency bands is the frequency band with better radiation efficiency required for the current application scenario.

[0241] For example, when the application scenario of the electronic device 100 is a game scenario where the game is turned on, the controller 2 can control the first matching unit 14 to be in the corresponding matching state. At this time, the radiation efficiency of the WiFi 2.4G frequency band can be relatively high, so as to meet the requirements of the game scenario. For another example, when the application scenario of the electronic device 100 is a call scenario, the controller 2 can control the first matching unit 14 to be in the corresponding matching state. At this time, the radiation efficiency of the B3 frequency band or the B1 frequency band, etc., can be relatively high, so as to meet the requirements of the call scenario.

[0242] In some embodiments, the controller 2 can determine the switch control logic corresponding to the current scenario according to the correspondence between the application scenario and the switch control logic, and control the matching switch M2 in the first matching unit 14 to be in the corresponding on or off state, so that the first matching unit 14 is in the corresponding matching state.

[0243] Among them, as described above, the electronic device 100 may further include the antenna assembly 1 in any of the foregoing embodiments, and the schematic illustration thereof will not be repeated herein with reference to the drawings.

[0244] Among them, the electronic device 100 further includes a memory, a battery, and other antenna assemblies, etc., which will not be elaborated herein as they are not related to the improvement of the present application.

[0245] The electronic device 100 of the present application may be an electronic device such as a mobile phone, a tablet computer, a laptop computer, etc.

[0246] Among them, the controller 2 may be a central processing unit, a single-chip microcomputer, a digital signal processor, a microcontroller, etc.

[0247] Among them, switches such as the matching switch M2 may be digital control switches, for example, may be transistors such as MOS transistors, and can be turned on or off under the control of the controller 2 to enable or disable the corresponding first matching branch 1411.

[0248] Among them, for other structures of the antenna assembly 1 included in the electronic device 100, reference may be made to the description in any of the foregoing embodiments, and details will not be elaborated herein.

[0249] With the antenna assembly 1 and the electronic device 100 in the present application, the grounding matching member 12 is connected between the first grounding point G1 and the ground GND, so that the first radiation stub 11 and the grounding matching member 12 work in at least two operating modes simultaneously. Each operating mode supports at least one frequency band, and the at least two operating modes include at least two of the left-hand mode, the quarter-wavelength mode, and the half-wavelength dipole mode. Thus, a first set of frequency bands including at least two frequency bands can be supported, and the requirement of multiple frequency bands can be met without increasing the size of the radiation stub 11. In addition, for the antenna assembly 1 of the present application, by adjusting the matching state of the first matching unit 14, the antenna efficiency of the frequency bands in the first set of frequency bands can be adjusted, so that the main frequency bands are different. Thus, the requirement for the communication quality of certain frequency bands in different scenarios can be effectively met, or other frequency bands can be further supported to increase the number of supported frequency bands. In addition, the antenna assembly 1 of the present application further includes a second radiation stub 15 and a second feed 16. The second radiation stub 15 supports a second set of frequency bands under the excitation of the second feed 16. Thus, the number of frequency bands supported by the antenna assembly 1 can be effectively increased to further meet the requirement of multiple frequency bands. In addition, since the distance between the second feeding point F2 and the first feeding point F1 is within a preset distance range, when the first feed 13 and the second feed 16 are arranged relatively close to each other, it is also convenient to ensure the connection between these feeding points and the corresponding feeds.

[0250] In the above embodiments, the descriptions of the respective embodiments each have their own emphasis. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0251] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application; without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An antenna assembly, characterized in that, Comprising: A first radiating stub, including a first feeding point and a first grounding point. Among them, the first radiating stub further includes a relative first open end and a second open end. The first feeding point and the first grounding point are located between the first open end and the second open end, and the first feeding point is located between the first grounding point and the first open end; A grounding matching component, connected between the first grounding point and the ground; A first feeder, connected to the first feeding point; Among them, under the excitation of the first feeder, the first radiating stub operates in at least two operating modes simultaneously under the matching of the grounding matching component, and supports a first group of frequency bands. Among them, the first group of frequency bands includes at least two frequency bands. Among them, each operating mode supports at least one frequency band. Among them, the at least two operating modes include at least two of the left-handed mode, the quarter-wavelength mode, and the half-wavelength dipole mode.

2. The antenna assembly according to claim 1, wherein The first radiating stub includes a first stub portion and a second stub portion. The first stub portion is the stub portion between the first open end and the first grounding point, and the second stub portion is the stub portion between the second open end and the first grounding point; Under the excitation of the first feeder, the first stub portion operates in the left-handed mode under the matching of the grounding matching component, the second stub portion operates in the quarter-wavelength mode under the matching of the grounding matching component, and the first radiating stub operates in the half-wavelength dipole mode under the matching of the grounding matching component.

3. The antenna assembly according to claim 2, wherein, The first group of frequency bands includes a first frequency band, a second frequency band, and a third frequency band. When the first stub portion and the grounding matching component cooperate to operate in the left-handed mode, it supports the first frequency band. When the second stub portion and the grounding matching component cooperate to operate in the quarter-wavelength mode, it supports the second frequency band. When the first radiating stub and the grounding matching component cooperate to operate in the half-wavelength dipole mode, it supports the third frequency band. Among them, the third frequency band is higher than the second frequency band, and the second frequency band is higher than the first frequency band.

4. The antenna assembly according to claim 1, characterized in that, The frequency range corresponding to the first group of frequency bands is between 1 GHz and 3 GHz.

5. The antenna assembly according to claim 1, wherein The frequency bands in the first group of frequency bands include the WiFi 2.4G frequency band.

6. The antenna assembly according to claim 1, characterized in that The grounding matching component includes an inductor and / or a conductive component.

7. The antenna assembly according to claim 1, wherein The conductive component includes at least one of a metal wire, an FPC, and a metal shrapnel.

8. The antenna assembly according to claim 7, wherein The conductive component is a metal wire. The width of the conductive component is any value between 0.5 mm and 1.5 mm, and the length of the conductive component is any value between 2 mm and 15 mm.

9. The antenna assembly according to claim 8, wherein The conductive component is a bent or folded strip-shaped metal wire.

10. The antenna assembly according to claim 9, characterized in that The conductive component includes a first connection segment, a second connection segment, and a third connection segment. The first connection segment is connected to the first grounding point, the third connection segment is grounded, and the second connection segment is connected between the first connection segment and the third connection segment and is connected to both the first connection segment and the third connection segment at an angle.

11. The antenna assembly according to claim 3, characterized in that, The antenna efficiencies of the first frequency band, the second frequency band, and the third frequency band are different.

12. The antenna assembly according to any one of claims 1-11, characterized in that, The antenna assembly further includes a first matching unit, which is connected between the first feed source and the first feeding point. Under the excitation of the first feed source, the first radiation branch operates in at least two operating modes simultaneously under the matching adjustment of the grounding matching member and the first matching unit, so as to support the first group of frequency bands.

13. The antenna assembly according to claim 12, characterized in that, The first matching unit is an adjustable matching unit, and the first matching unit includes at least two matching states. When the first matching unit is in different matching states, among the frequency bands included in the first group of frequency bands, the antenna efficiency of at least one frequency band is different.

14. The antenna assembly according to claim 3, wherein The antenna assembly further includes a parasitic branch, which is disposed adjacent to and spaced from the second open end of the first radiation branch. The parasitic branch supports the transceiver of electromagnetic wave signals in the second frequency band under the coupled excitation of the first feed source.

15. The antenna assembly according to any one of claims 2-11, characterized in that, The antenna assembly further includes: A second radiation branch, including a second feeding point; A second feed source, connected to the second feeding point, and the second radiation branch supports a second group of frequency bands under the excitation of the second feed source; Wherein, the distance between the second feeding point and the first feeding point is within a preset distance range.

16. The antenna assembly according to claim 15, wherein The preset distance range is 10 mm to 35 mm.

17. The antenna assembly according to claim 15, characterized in that, Under the excitation of the second feed source, the second radiation branch operates in at least one operating mode simultaneously to support the second group of frequency bands. Among them, at least one frequency band is included in the first group of frequency bands, and each operating mode corresponds to a frequency band.

18. The antenna assembly according to claim 17, wherein, The second radiation branch includes an opposite third open end and a first grounding end, the second feeding point is located between the third open end and the first grounding end, the at least one operating mode includes an IFA mode and a quarter-wavelength mode, the second group of frequency bands includes a fourth frequency band and a fifth frequency band, the second radiation branch operates in the IFA mode under the excitation of the second feed source to support the fourth frequency band in the second group of frequency bands, and the third branch portion between the second feeding point and the third open end of the second radiation branch operates in the quarter-wavelength mode under the excitation of the second feed source to support the fifth frequency band in the second group of frequency bands, wherein the fifth frequency band is higher than the fourth frequency band.

19. The antenna assembly according to claim 18, wherein The third open end is disposed adjacent to and spaced from the first open end of the first radiation branch, and a part of the first radiation branch also serves as a parasitic branch of the second radiation branch.

20. The antenna assembly according to claim 15, characterized in that, The antenna assembly further includes a second matching unit, which is connected between the second feed source and the second feeding point. The second radiation branch supports the second group of frequency bands under the matching adjustment of the second matching unit.

21. The antenna assembly according to claim 15, wherein, The frequency range corresponding to the second group of frequency bands is higher than the frequency range corresponding to the first group of frequency bands.

22. The antenna assembly according to claim 1, wherein, The first grounding point is located between the first midpoint and the first feeding point, and the first midpoint is the midpoint of the first radiation branch.

23. An electronic device, characterized in that, The electronic device includes the antenna assembly according to any one of claims 1-22.

24. The electronic device according to claim 23, characterized in that, The electronic device further includes a frame, and at least the first radiation branch is a metal segment disposed on the frame, or the frame is a metal frame, and at least the first radiation branch is a metal frame segment formed by opening a slit in the metal frame.

25. The electronic device according to claim 23, characterized in that, The electronic device includes a top end, a bottom end, and two side ends, and at least the first radiation branch is disposed on one of the side ends.

26. The electronic device according to claim 25, wherein The electronic device further includes a main board. When the antenna assembly further includes a second radiation branch, the first radiation branch and the second radiation branch are disposed on the same side end, and the projections of the first feeding point and the second feeding point on the side facing the main board are both located within the main board.

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