Antenna assembly and electronic equipment

Abstract

The invention provides an antenna assembly and electronic equipment. The antenna assembly comprises a first antenna unit, a second antenna unit and a suspension branch. A first antenna radiator of the first antenna unit is provided with a first grounding end, a first free end and a first feeding point, the first grounding end is grounded, the first feeding point is electrically connected with a first feed source, and the first antenna radiator supports a first frequency band. The second antenna unit comprises a second antenna radiator which is provided with a second grounding end, a second free end and a second feeding point, the second grounding end is grounded, the second feeding point is electrically connected with a second feed source, a coupling gap is formed between the second free end and the first free end, and the second antenna radiator supports a second frequency band and a third frequency band. The suspension branch knot and the first antenna radiator are arranged at intervals and coupled, the suspension branch knot and the second antenna radiator are arranged at intervals and coupled, and the suspension branch knot supports a fourth frequency band. According to the antenna assembly and the electronic equipment, the antenna frequency band can be expanded, the cost is low, and the antenna performance is good.

Description

Technical Field

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

[0002] Electronic devices have many components, leaving limited space for antenna design. In related technologies, in order to design antennas that cover more frequency bands in a limited space, the structure of the antenna is changed, such as adding feeds, adding matching, setting switches, etc. This will incur high costs and make it difficult to balance the performance of the newly added antenna frequency band with the original antenna frequency band. Summary of the invention

[0003] The present application provides an antenna assembly and electronic device that can expand the antenna frequency band and has low cost and good antenna performance.

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

[0005] A first antenna unit, comprising a first feed source and a first antenna radiator, wherein the first antenna radiator has a first ground end, a first free end, and a first feeding point located between the first ground end and the first free end, the first ground end is grounded, the first feeding point is electrically connected to the first feed source, and the first antenna radiator generates a first resonant mode supporting a first frequency band under the excitation of the first feed source;

[0006] a second antenna unit, comprising a second feed source and a second antenna radiator, wherein the second antenna radiator has a second ground end, a second free end, and a second feeding point located between the second ground end and the second free end, the second ground end is grounded, the second feeding point is electrically connected to the second feed source, a coupling gap is formed between the second free end and the first free end, and the second antenna radiator generates a second resonance mode supporting a second frequency band and a third resonance mode supporting a third frequency band under the excitation of the second feed source; and

[0007] A suspended branch, wherein the suspended branch is spaced apart and coupled to the first antenna radiator, the suspended branch is spaced apart and coupled to the second antenna radiator, and the suspended branch is used to generate a fourth resonance mode supporting a fourth frequency band.

[0008] On the other hand, the present application also provides an electronic device, including a middle frame assembly, a circuit board assembly and the antenna assembly, the middle frame assembly includes a frame, the first antenna radiator and the second antenna radiator are arranged on the frame, the circuit board assembly includes at least one circuit board, the first feed source and the second feed source are arranged on the circuit board, and the suspended branch is arranged between the circuit board and the frame.

[0009] The antenna assembly provided in the present application includes a first antenna unit, a second antenna unit and a suspended branch. The first antenna unit includes a first feed source and a first antenna radiator, the second antenna unit includes a second feed source and a second antenna radiator, the first antenna radiator generates a first resonance mode supporting a first frequency band under the excitation of the first feed source, the second antenna radiator generates a second resonance mode supporting a second frequency band and a third resonance mode supporting a third frequency band under the excitation of the second feed source, the suspended branch is spaced and coupled with the first antenna radiator, the suspended branch is spaced and coupled with the second antenna radiator, the suspended branch is used to generate a fourth resonance mode supporting a fourth frequency band, that is, the antenna assembly can at least support the first frequency band, the second frequency band, the third frequency band and the fourth frequency band, and covers more frequency bands, and the fourth frequency band is supported by the suspended branch. Therefore, there is no need to add feed sources, matching, switches, etc. in the first antenna unit and the second antenna unit, and no high cost will be incurred, nor will the circuit board environment formed by the first antenna unit and the second antenna unit be destroyed, and the performance of the antenna assembly in the first frequency band, the second frequency band, the third frequency band and the fourth frequency band can be taken into account. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments are briefly introduced below.

[0011] Figure 1 A schematic diagram of the structure of an antenna assembly provided in an embodiment of the present application;

[0012] Figure 2 Another structural schematic diagram of an antenna assembly provided in an embodiment of the present application;

[0013] Figure 3 for Figure 2 The return loss curve diagram of the antenna assembly shown when no suspended branches are provided;

[0014] Figure 4 for Figure 2 The radiation efficiency curve diagram of the antenna assembly shown is when no suspended branches are provided;

[0015] Figure 5 for Figure 2 The return loss curve comparison diagram of the antenna assembly shown is when the antenna assembly is not provided with a suspended branch and when the antenna assembly is provided with a suspended branch;

[0016] Figure 6 for Figure 2 A comparison diagram of the radiation efficiency curves of the antenna assembly shown in FIG. 1 when the antenna assembly is not provided with a suspended branch and when the antenna assembly is provided with a suspended branch;

[0017] Figure 7 for Figure 2 A return loss curve diagram when the spacing between the suspended branch of the antenna assembly and the second antenna radiator changes;

[0018] Figure 8 for Figure 2 A radiation efficiency curve diagram when the spacing between the suspended branch of the antenna assembly and the second antenna radiator changes;

[0019] Fig. 9 for Figure 2 A schematic diagram of the distribution of the resonant current when the antenna assembly generates a resonant mode;

[0020] Fig.10 for Figure 2 A schematic diagram of the resonant current distribution of the suspended branches in the antenna assembly shown;

[0021] Fig.11 for Figure 2 A return loss curve diagram of the antenna assembly shown when the length of the suspended branch varies;

[0022] Fig.12 for Figure 2 A radiation efficiency curve diagram of the antenna assembly shown when the length of the suspended branch changes;

[0023] Fig.13 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0024] Description of reference numerals:

[0025] Antenna assembly 100; first antenna unit 10; second antenna unit 20; suspended branch 30; first feed source 101; first antenna radiator 102; second feed source 201; second antenna radiator 202; first ground terminal A; first free end B; first feeding point C; second ground terminal D; second free end E; second feeding point F; coupling gap 40; first radiating section 220; second radiating section 221; receiving space 50; third free end G; fourth free end H; first suspended section 301; second suspended section 302; electronic device 1000; frame 11; circuit board 21. DETAILED DESCRIPTION

[0026] The technical solution provided by the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described in the present application are only a part of the embodiments, not all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0027] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent, or alternative to other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0028] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish different objects rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example: a component or device comprising one or more parts is not limited to the one or more parts listed, but may optionally include one or more parts that are not listed but inherent to the exemplified product, or one or more parts that it should have based on the described functions. In addition, the terms "end" and "point" in the specification and claims of the present application may indicate a small section relative to the radiator or branch as a whole, that is, "end" cannot be narrowly understood as the end, and "point" cannot be narrowly understood as a point.

[0029] like Figure 1 As shown, Figure 1 A schematic diagram of the structure of an antenna assembly 100 provided in an embodiment of the present application. The antenna assembly 100 includes a first antenna unit 10, a second antenna unit 20 and a suspended branch 30. The first antenna unit 10 includes a first feed source 101 and a first antenna radiator 102. The second antenna unit 20 includes a second feed source 201 and a second antenna radiator 202.

[0030] The first feed 101 is electrically connected to the RF chip and the first antenna radiator 102. The first feed 101 receives the RF current provided by the RF chip to excite the first antenna radiator 102 to generate a corresponding resonant current. The first feed 101 and the RF chip can be directly electrically connected, or can be indirectly electrically connected. For example: the first feed 101 and the RF chip can be directly electrically connected by direct welding, or the first feed 101 and the RF chip can be indirectly electrically connected by at least one electrical connector such as a coaxial line, a microstrip line, a conductive spring, a conductive glue, and a circuit board. In the embodiment of the present application, the RF chip is arranged on the circuit board, and the RF chip is used to provide RF current. The first feed 101 can be understood as a port arranged on the circuit board and close to the first antenna radiator 102, and the first feed 101 is indirectly electrically connected to the RF chip. Among them, the way in which the RF chip is arranged on the circuit board includes but is not limited to the RF chip being directly formed on the circuit board, or the RF chip being fixed on the circuit board after being formed. The first feed 101 and the RF chip can be located on the same circuit board, or can be located on different circuit boards.

[0031] The first antenna radiator 102 is a conductor with a specific size. This embodiment does not specifically limit the length of the first antenna radiator 102, and can be designed according to the actual supported frequency band and other environmental factors. The material of the first antenna radiator 102 includes but is not limited to metal, or alloy, etc. The shape of the first antenna radiator 102 includes but is not limited to strip, or sheet, or rod, or coating, or film, etc. The extension method of the first antenna radiator 102 includes but is not limited to straight extension, or curve extension, or bending extension, etc. The width of the first antenna radiator 102 can be uniform, or gradual, or abrupt. The first antenna radiator 102 can be a built-in radiator, or it can be an external radiator. When the first antenna radiator 102 is a built-in radiator, the form of the first antenna radiator 102 includes but is not limited to a radiator formed on a flexible printed circuit board (Flexible Printed Circuit board, FPC), or a radiator formed by laser direct structuring (Laser Direct Structuring, LDS), or a radiator formed by printing direct structuring (Print Direct Structuring, PDS), etc. When the first antenna radiator 102 is an external radiator, the form of the first antenna radiator 102 includes but is not limited to a metal frame radiator.

[0032] The first antenna radiator 102 has a first ground end A, a first free end B, and a first feeding point C located between the first ground end A and the first free end B.

[0033] The first ground terminal A is an end of the first antenna radiator 102 along its extension direction. In the embodiment of the present application, the extension direction of the first antenna radiator 102 is the length direction of the first antenna radiator 102. Grounding of the first ground terminal A can be understood as the first ground terminal A being electrically connected to the reference ground. The first ground terminal A and the reference ground can be directly electrically connected, or can be indirectly electrically connected. For example: the first ground terminal A and the reference ground can be directly electrically connected by direct welding, or the first ground terminal A and the reference ground can be indirectly electrically connected by at least one electrical connector such as a conductive wire, a conductive spring, a conductive probe, and a conductive glue. Among them, the relative potential of the reference ground is zero. The reference ground can be a port, or a metal plate, etc. The first free end B is the other end of the first antenna radiator 102 along its extension direction. The first feeding point C is the position where the first antenna radiator 102 is electrically connected to the first feed source 101, that is, the first feeding point C is the position where the first antenna radiator 102 receives the excitation signal of the first feed source 101.

[0034] Among them, the first ground terminal A, the first feeding point C and the first free end B are arranged in sequence. The first feeding point C being located between the first ground terminal A and the first free end B may include the first feeding point C being relatively close to the first ground terminal A, that is, the length of the first antenna radiator 102 between the first feeding point C and the first ground terminal A is less than the length of the first antenna radiator 102 between the first feeding point C and the first free end B; or, the first feeding point C may be located at the midpoint of the first ground terminal A and the first free end B, that is, the length of the first antenna radiator 102 between the first feeding point C and the first ground terminal A is equal to the length of the first antenna radiator 102 between the first feeding point C and the first free end B; or, the first feeding point C may be relatively close to the first free end B, that is, the length of the first antenna radiator 102 between the first feeding point C and the first free end B is less than the length of the first antenna radiator 102 between the first feeding point C and the first ground terminal A. In the following embodiments, the first feeding point C is taken as an example of being relatively close to the first free end B.

[0035] The first feeding point C is electrically connected to the first feed source 101. In a possible embodiment, the first feeding point C and the first feed source 101 may be electrically connected by at least one electrical connection member such as a conductive wire, a conductive spring, a conductive probe, and a conductive glue. In another possible embodiment, a first tuning circuit may be electrically connected between the first feeding point C and the first feed source 101. By electrically connecting the first tuning circuit between the first feeding point C and the first feed source 101, it is beneficial to adjust the impedance of the first antenna radiator 102, and it is more convenient to implement the working frequency band design of the first antenna radiator 102.

[0036] The first antenna radiator 102 generates a first resonance mode supporting a first frequency band under the excitation of the first feed source 101. It can be understood that the resonance current of the first resonance mode is mainly distributed on the first antenna radiator 102. The first antenna radiator 102 can perform communication in the first frequency band.

[0037] The second feed 201 is electrically connected to the RF chip and to the second antenna radiator 202. The second feed 201 receives the RF current provided by the RF chip to excite the second antenna radiator 202 to generate a corresponding resonant current. The second feed 201 and the RF chip can be directly electrically connected, or they can be indirectly electrically connected. For example: the second feed 201 and the RF chip can be directly electrically connected by direct welding, or the second feed 201 and the RF chip can be indirectly electrically connected by at least one electrical connector such as a coaxial line, a microstrip line, a conductive spring, a conductive glue, a circuit board, etc. In the embodiment of the present application, the second feed 201 can be understood as a port provided on a circuit board and close to the second antenna radiator 202, and the second feed 201 is indirectly electrically connected to the RF chip. The second feed 201 and the RF chip can be located on the same circuit board, or they can be located on different circuit boards.

[0038] The second antenna radiator 202 is a conductor with a specific size. The length of the second antenna radiator 202 is not specifically limited in this embodiment, and can be designed according to the actually supported frequency band and other environmental factors. The material of the second antenna radiator 202 includes but is not limited to metal or alloy. The material of the second antenna radiator 202 can be the same as or different from the material of the first antenna radiator 102. The shape of the second antenna radiator 202 includes but is not limited to strip, sheet, rod, coating, or film. The shape of the second antenna radiator 202 can be the same as or different from the shape of the first antenna radiator 102. The extension mode of the second antenna radiator 202 includes but is not limited to straight extension, curve extension, bending extension, etc. The width of the second antenna radiator 202 can be uniform, gradual, or abrupt. The extension mode of the second antenna radiator 202 can be the same as or different from the extension mode of the first antenna radiator 102. The second antenna radiator 202 can be a built-in radiator or an external radiator. When the second antenna radiator 202 is a built-in radiator, the form of the second antenna radiator 202 includes but is not limited to being a radiator formed on an FPC, or an LDS radiator, or a PDS radiator, etc. When the second antenna radiator 202 is an external radiator, the form of the second antenna radiator 202 includes but is not limited to being a metal frame radiator. Optionally, when the first antenna radiator 102 is a built-in radiator, the second antenna radiator 202 is a built-in radiator; when the first antenna radiator 102 is an external radiator, the second antenna radiator 202 is an external radiator.

[0039] The second antenna radiator 202 has a second ground end D, a second free end E, and a second feeding point F located between the second ground end D and the second free end E.

[0040] The second ground terminal D is an end of the second antenna radiator 202 along its extension direction. In the embodiment of the present application, the extension direction of the second antenna radiator 202 is the length direction of the second antenna radiator 202. The grounding of the second ground terminal D can be understood as the second ground terminal D being electrically connected to the reference ground. The second ground terminal D and the reference ground can be directly electrically connected, or can be indirectly electrically connected. For example: the second ground terminal D and the reference ground can be directly electrically connected by direct welding, or the second ground terminal D and the reference ground can be indirectly electrically connected by at least two electrical connectors such as a conductive wire, a conductive spring, a conductive probe, and a conductive glue. The second free end E is the other end of the second antenna radiator 202 along its extension direction. The second feeding point F is the position where the second antenna radiator 202 is electrically connected to the second feed source 201, that is, the second feeding point F is the position where the second antenna radiator 202 receives the excitation signal of the second feed source 201.

[0041] Among them, the second ground terminal D, the second feeding point F and the second free end E are arranged in sequence. The second feeding point F being located between the second ground terminal D and the second free end E may include that the second feeding point F is relatively close to the second ground terminal D, that is, the length of the second antenna radiator 202 between the second feeding point F and the second ground terminal D is less than the length of the second antenna radiator 202 between the second feeding point F and the second free end E; or, the second feeding point F may be located at the midpoint of the second ground terminal D and the second free end E, that is, the length of the second antenna radiator 202 between the second feeding point F and the second ground terminal D is equal to the length of the second antenna radiator 202 between the second feeding point F and the second free end E; or, the second feeding point F may be relatively close to the second free end E, that is, the length of the second antenna radiator 202 between the second feeding point F and the second free end E is less than the length of the second antenna radiator 202 between the second feeding point F and the second ground terminal D. In the following embodiments, the second feeding point F is taken as an example of being relatively close to the second free end E.

[0042] The second feeding point F is electrically connected to the second feed source 201. In a possible embodiment, the second feeding point F and the second feed source 201 may be electrically connected by at least one electrical connection member such as a conductive wire, a conductive spring, a conductive probe, and a conductive glue. In another possible embodiment, a second tuning circuit may be electrically connected between the second feeding point F and the second feed source 201. By electrically connecting the second tuning circuit between the second feeding point F and the second feed source 201, it is beneficial to adjust the impedance of the second antenna radiator 202, and it is more convenient to implement the working frequency band design of the second antenna radiator 202.

[0043] A coupling gap 40 is formed between the second free end E and the first free end B. It can be understood that the first antenna radiator 102 and the second antenna radiator 202 can be coupled through the coupling gap 40. In other words, the first antenna radiator 102 and the second antenna radiator 202 can transmit radiation energy through the coupling gap 40. The size of the coupling gap 40 can range from 0.5 mm to 3 mm, that is, the distance between the second free end E and the first free end B can range from 0.5 mm to 3 mm.

[0044] The second antenna radiator 202 generates a second resonance mode supporting the second frequency band and a third resonance mode supporting the third frequency band under the excitation of the second feed source 201. It can be understood that the resonance current of the second resonance mode and the resonance current of the third resonance mode are mainly distributed on the second antenna radiator 202. The second antenna radiator 202 can communicate in the second frequency band and the third frequency band.

[0045] The suspended branch 30 is a conductor with a specific size. The length of the suspended branch 30 is not specifically limited in this embodiment, and can be designed according to the frequency band actually supported and other environmental factors. The material of the suspended branch 30 includes but is not limited to metal, or alloy, etc. The material of the suspended branch 30 can be the same as or different from the material of the first antenna radiator 102 and the material of the second antenna radiator 202. The shape of the suspended branch 30 includes but is not limited to strip, sheet, rod, coating, or film, etc. The shape of the suspended branch 30 can be the same as or different from the shape of the first antenna radiator 102 and the shape of the second antenna radiator 202. The extension method of the suspended branch 30 includes but is not limited to straight extension, curve extension, or bending extension, etc. The extension method of the suspended branch 30 can be the same as or different from the extension method of the first antenna radiator 102 and the extension method of the second antenna radiator 202. The width of the suspended branch 30 can be uniform, gradual, or sudden. The width variation of the suspension branch 30 may be the same as or different from the width variation of the first antenna radiator 102 and the width variation of the second antenna radiator 202. The suspension branch 30 may be a built-in branch or an external branch. When the suspension branch 30 is a built-in branch, the suspension branch 30 may be fixed to the circuit board by a bracket or the like, and when the suspension branch 30 is an external branch, the suspension branch 30 may be arranged on the frame.

[0046] The suspension branch 30 is spaced apart and coupled to the first antenna radiator 102 , and the suspension branch 30 is spaced apart and coupled to the second antenna radiator 202 . The suspension branch 30 is used to generate a fourth resonance mode supporting a fourth frequency band.

[0047] It can be understood that the orthographic projection of part of the suspended branch 30 overlaps with at least part of the first antenna radiator 102, and the orthographic projection of another part of the suspended branch 30 overlaps with at least part of the second antenna radiator 202. The coupling of the suspended branch 30 with the first antenna radiator 102 can be understood as the suspended branch 30 can obtain radiation energy from the first antenna radiator 102. The coupling of the suspended branch 30 with the second antenna radiator 202 can be understood as the suspended branch 30 can obtain radiation energy from the second antenna radiator 202. The spacing distance between the suspended branch 30 and the first antenna radiator 102 and the spacing distance between the suspended branch 30 and the second antenna radiator 202 can be the same, or can be different.

[0048] In a possible embodiment, the suspended branch 30 obtains radiation energy from both the first antenna radiator 102 and the second antenna radiator 202, and the radiation energy obtained from the first antenna radiator 102 is less, and the radiation energy obtained from the second antenna radiator 202 is more. Exemplarily, the resonant current of the second resonant mode and / or the resonant current of the third resonant mode can be coupled to the first antenna radiator 102 through the coupling gap 40, and coupled to the suspended branch 30 through the first antenna radiator 102. At this time, the suspended branch 30 obtains radiation energy from both the first antenna radiator 102 and the second antenna radiator 202, and the radiation energy obtained from the first antenna radiator 102 is less, and the radiation energy obtained from the second antenna radiator 202 is more.

[0049] In a possible embodiment, the first frequency band, the second frequency band, the third frequency band and the fourth frequency band are different. The antenna assembly 100 of this embodiment can support at least four different frequency bands, and because the fourth frequency band is generated by the suspended branch 30, the influence on the first resonance mode, the second resonance mode and the third resonance mode is small. Even if the fourth frequency band is close to one of the second frequency band and the third frequency band, it can ensure that the antenna assembly 100 has good radiation efficiency in the first frequency band, the second frequency band, the third frequency band and the fourth frequency band.

[0050] In another possible embodiment, the first frequency band, the second frequency band, and the third frequency band are different, and the fourth frequency band is the same as one of the second frequency band and the third frequency band. The antenna assembly 100 of this embodiment can support at least three different frequency bands, and the fourth resonance mode is equivalent to enhancing the second resonance mode or the third resonance mode, so that the antenna assembly 100 can have better radiation efficiency in the second frequency band or the third frequency band.

[0051] The antenna assembly 100 provided in the present application includes a first antenna unit 10, a second antenna unit 20 and a suspended branch 30, wherein the first antenna unit 10 includes a first feed source 101 and a first antenna radiator 102, the second antenna unit 20 includes a second feed source 201 and a second antenna radiator 202, the first antenna radiator 102 generates a first resonance mode supporting a first frequency band under the excitation of the first feed source 101, the second antenna radiator 202 generates a second resonance mode supporting a second frequency band and a third resonance mode supporting a third frequency band under the excitation of the second feed source 201, the suspended branch 30 is spaced apart and coupled to the first antenna radiator 102, and the suspended branch 30 is spaced apart and coupled to the first antenna radiator 102. The node 30 is spaced apart and coupled with the second antenna radiator 202, and the suspended branch node 30 is used to generate a fourth resonant mode supporting a fourth frequency band, that is, the antenna assembly 100 can at least support the first frequency band, the second frequency band, the third frequency band and the fourth frequency band. The covered frequency bands are relatively large, and the fourth frequency band is supported by the suspended branch node 30. Therefore, there is no need to add feed sources, matching, switches, etc. to the first antenna unit 10 and the second antenna unit 20, and no high cost will be generated. The circuit board environment formed by the first antenna unit 10 and the second antenna unit 20 will not be damaged, and the performance of the antenna assembly 100 in the first frequency band, the second frequency band, the third frequency band and the fourth frequency band can be taken into account.

[0052] In a possible embodiment, the fourth frequency band is located in an ultra-high frequency band, and at least one of the second frequency band and the third frequency band is located in an ultra-high frequency band.

[0053] Among them, the ultra-high frequency includes a frequency band greater than 3GHz. For example: the ultra-high frequency may include the N77 frequency band (3.3GHz~4.2GHz), the N78 frequency band (3.3GHz~3.8GHz), the N79 frequency band (4.4GHz~5.0GHz), and the WIFI 5G frequency band. It can be understood that the fourth frequency band may include at least one of the N77 frequency band, the N78 frequency band, the N79 frequency band, and the WIFI 5G frequency band. At least one of the second frequency band and the third frequency band may include at least one of the N77 frequency band, the N78 frequency band, the N79 frequency band, and the WIFI 5G frequency band. Optionally, one of the second frequency band and the third frequency band may be located in the ultra-high frequency band, and the other of the second frequency band and the third frequency band may be located in other frequency bands.

[0054] Exemplarily, one of the second frequency band and the third frequency band includes the N78 frequency band, the other of the second frequency band and the third frequency band is located in the medium and high frequency, and the fourth frequency band includes the N79 frequency band; or, one of the second frequency band and the third frequency band includes the N79 frequency band, the other of the second frequency band and the third frequency band is located in the medium and high frequency, and the fourth frequency band includes the N78 frequency band.

[0055] Among them, medium and high frequencies include medium frequency and high frequency. The medium frequency includes 1710MHz~2170MHz. The high frequency includes 2300MHz~2690Mhz. For example, the medium and high frequencies may include 4G's B1 band (uplink 1.92GHz ~ 1.98GHz; downlink 2.11GHz ~ 2.17GHz), B2 band (uplink 1.85GHz ~ 1.91GHz; downlink 1.93GHz ~ 1.99GHz), B3 band (uplink 1.71GHz ~ 1.785GHz; downlink 1.805GHz ~ 1.88GHz), B4 band (uplink 1.71GHz ~ 1.755GHz; downlink 2.11GHz ~ 2.155GHz), B7 band (uplink 2.5GHz ~ 2.57GHz; downlink 2.62GHz ~ 2.69GHz), B34 band (2.01GHz ~ 2.025GHz), B38 band (2.57GHz ~ 2.62GHz), B39 band (1.88GHz ~ 1.92GHz), B40 band (2.3GHz ~ 2.4GHz) ), B41 band (2.49GHz ~ 2.69GHz), 5G N1 band (uplink 1.92GHz ~ 1.98GHz; downlink 2.11GHz ~ 2.17GHz), N2 band (uplink 1.85GHz ~ 1.91GHz; downlink 1.93GHz ~ 1.99GHz), N3 band (uplink 1.71GHz ~ 1.785GHz; downlink 1.805GHz ~ 1.88GHz), N7 Frequency bands (uplink 2.5GHz~2.57GHz; downlink 2.62GHz~2.69GHz), N34 band (2.01GHz~2.025GHz), N38 band (2.57GHz~2.62GHz), N39 band (1.88GHz~1.92GHz), N40 band (2.3GHz~2.4GHz), N41 band (2.49GHz~2.69GHz), and WIFI 2.4G band, etc. Optionally, the other of the second frequency band and the third frequency band may include at least one of the B1 band, B2 band, B3 band, B4 band, B7 band, B34 band, B38 band, B39 band, B40 band, B41 band, N1 band, N2 band, N3 band, N7 ​​band, N34 band, N38 band, N39 band, N40 band, N41 band, and WIFI 2.4G band.

[0056] In this embodiment, by making the fourth frequency band located at the ultra-high frequency and at least one of the second frequency band and the third frequency band located at the ultra-high frequency, the antenna component 100 can communicate in at least two ultra-high frequency bands, and the at least two ultra-high frequency bands are respectively supported by the resonant mode generated on the suspended branch 30 and the resonant mode generated on the second antenna radiator 202, so that it has good radiation efficiency in at least two ultra-high frequency bands.

[0057] In a possible embodiment, Figure 2 As shown, Figure 2 Another structural schematic diagram of the antenna assembly 100 provided in an embodiment of the present application. The second antenna radiator 202 includes a first radiating section 220 and a second radiating section 221 connected by bending, an end of the first radiating section 220 away from the second radiating section 221 forms the second free end E, and an end of the second radiating section 221 away from the first radiating section 220 forms the second grounding end D. The second antenna radiator 202 and the first antenna radiator 102 are surrounded to form a receiving space 50, and the suspended branch 30 is located in the receiving space 50.

[0058] The present application does not specifically limit the bending shape between the first radiating section 220 and the second radiating section 221. For example, the first radiating section 220 and the second radiating section 221 may be bent at a right angle, or the first radiating section 220 and the second radiating section 221 may be bent in an arc shape. In one possible embodiment, the first antenna radiator 102 may extend in a straight line, and the first antenna radiator 102, the coupling gap 40, and the second antenna radiator 202 may be arranged to form a substantially L-shaped receiving space 50. In another possible embodiment, the first antenna radiator 102 may be bent and extended, and the first antenna radiator 102, the coupling gap 40, and the second antenna radiator 202 may be arranged to form a substantially U-shaped receiving space 50.

[0059] The suspension branch 30 includes a first suspension segment 301 and a second suspension segment 302 connected in a bent manner, wherein the first suspension segment 301 is arranged in parallel with the first radiation segment 220, and the second suspension segment 302 is arranged in parallel with the second radiation segment 221. An end of the first suspension segment 301 away from the second suspension segment 302 forms a third free end G, and an end of the second suspension segment 302 away from the first suspension segment 301 forms a fourth free end H.

[0060] The present application does not specifically limit the bending shape between the first suspension segment 301 and the second suspension segment 302. For example, the first suspension segment 301 and the second suspension segment 302 can be bent at a right angle, or the first suspension segment 301 and the second suspension segment 302 can be bent in an arc shape. It can be understood that the suspension branch 30 is roughly L-shaped. Among them, the second suspension segment 302 extends toward the side of the first suspension segment 301 away from the first radiation segment 220. The first suspension segment 301 is arranged in parallel with the first radiation segment 220, which is conducive to improving the uniformity of coupling between the first suspension segment 301 and the first radiation segment 220 and the first antenna radiator 102. The second suspension segment 302 is arranged in parallel with the second radiation segment 221, which is conducive to improving the uniformity of coupling between the second suspension segment 302 and the second radiation segment 221. Among them, both ends of the suspension branch 30 are open.

[0061] The orthographic projection of the third free end G on the plane where the first antenna radiator 102 is located is located between the first feeding point C and the first free end B, and the orthographic projection of one end of the first suspension section 301 connected to the second suspension section 302 on the plane where the first radiating section 220 is located is located on the first radiating section 220.

[0062] In this embodiment, one end of the first suspension section 301 away from the second suspension section 302 is arranged opposite to the first antenna radiator 102 and spaced apart, so that the first suspension section 301 can be coupled with the first antenna radiator 102, and one end of the first suspension section 301 close to the second suspension section 302 is arranged opposite to the first radiating section 220 and spaced apart, so that the first suspension section 301 can be coupled with the first radiating section 220. It can be understood that the first suspension section 301 spans the coupling gap 40 between the first antenna radiator 102 and the second antenna radiator 202.

[0063] Since the resonant current of the first resonant mode between the first feeding point C and the first ground terminal A on the first antenna radiator 102 is relatively strong, and the resonant current of the first resonant mode between the first feeding point C and the first free end B is relatively weak, when the resonant current of the second resonant mode and / or the resonant current of the third resonant mode are coupled to the first antenna radiator 102 through the coupling gap 40, they are relatively strong on the first antenna radiator 102 between the first feeding point C and the first free end B, and are basically very weak on the first antenna radiator 102 between the first feeding point C and the first ground terminal A. Therefore, by making the orthographic projection of the third free end G on the plane where the first antenna radiator 102 is located between the first feeding point C and the first free end B, while ensuring that the suspended branch 30 can be coupled to the resonant current of the second resonant mode and / or the resonant current of the third resonant mode from the first antenna radiator 102, it is possible to avoid increasing the length of the suspended branch 30. By making the orthographic projection of one end of the first suspension segment 301 connected to the second suspension segment 302 on the plane where the first radiation segment 220 is located be located on the first radiation segment 220 , the coupling effect between the suspension branch 30 and the second antenna radiator 202 can be ensured.

[0064] Please refer to Figures 3 to 6 , Figure 3 for Figure 2 The return loss curve of the antenna assembly 100 shown in FIG. 1 is a graph when the suspension branch 30 is not provided. Figure 4 for Figure 2 The radiation efficiency curve of the antenna assembly 100 shown in FIG. 1 is a curve diagram when the suspended branch 30 is not provided. Figure 5 for Figure 2 The return loss curve comparison diagram of the antenna assembly 100 without the suspension branch 30 and with the suspension branch 30 is shown. Figure 6 for Figure 2 The radiation efficiency curve comparison diagram of the antenna assembly 100 when the suspension branch 30 is not provided and when the suspension branch 30 is provided is shown. Figure 3 The middle curve a1 is a return loss curve in the first resonance mode when the antenna assembly 100 is not provided with the suspension branch 30. Figure 3 The middle curve a2 is a return loss curve of the antenna assembly 100 in the second resonance mode and the third resonance mode when the suspension branch 30 is not provided. Figure 5 The middle curve c1 and Figure 3 The curve a1 is the same as the curve c3. Figure 3 The middle curve a2 is the same, curve c2 is the return loss curve diagram of the antenna component 100 when the suspended branch 30 is set in the first resonance mode, and curve c4 is the return loss curve diagram of the antenna component 100 when the suspended branch 30 is set in the second resonance mode and the third resonance mode. Figure 5The middle curve c1 and the curve c2 are basically overlapped, so it can be concluded that the antenna assembly 100 has almost no effect on the generation of the first resonance mode after the suspension branch 30 is provided. Figure 5 It can be seen from the curves c3 and c4 that a new fourth resonance mode (indicated by point 1 in the figure) is generated after the antenna assembly 100 is provided with the suspended branch 30 . Figure 4 The middle curve b1 is a radiation efficiency curve in the first resonance mode when the antenna assembly 100 is not provided with the suspension branch 30. Figure 4 The middle curve b2 is a radiation efficiency curve of the antenna assembly 100 in the second resonance mode and the third resonance mode when the suspension branch 30 is not provided. Figure 6 The middle curve d1 and Figure 4 The curve b1 is the same as the curve d3. Figure 4 The curve b2 is the same as the curve d2, the curve d4 is the curve of the radiation efficiency in the second and third resonance modes when the antenna assembly 100 is provided with the suspension branch 30, and the curve d2 is the curve of the radiation efficiency in the first resonance mode when the antenna assembly 100 is provided with the suspension branch 30. Figure 6 It can be seen from the curves d1 and d2 that the fourth resonance mode newly generated after the suspension branch 30 is set has basically no effect on the radiation efficiency of the first resonance mode. Figure 6 It can be seen from the curve d3 and the curve d4 that the fourth resonance mode newly generated after the antenna assembly 100 is provided with the suspension branch 30 has substantially no effect on the radiation efficiency of the second resonance mode and the third resonance mode.

[0065] In a possible embodiment, the spacing distance between the first suspension section 301 and the first radiation section 220 is within a range of 0.6 mm to 2 mm, and the spacing distance between the second suspension section 302 and the second radiation section 221 is within a range of 4 mm to 8 mm.

[0066] Optionally, the spacing distance between the first suspension section 301 and the first radiation section 220 is within the range of 0.6 mm to 1 mm, or the spacing distance between the first suspension section 301 and the first radiation section 220 is within the range of 1 mm to 2 mm. In the embodiment where the spacing distance between the first suspension section 301 and the first radiation section 220 is within the range of 0.6 mm to 1 mm, the spacing distance between the first suspension section 301 and the first radiation section 220 may be 0.6 mm, or 0.7 mm, or 0.8 mm, or 0.9 mm, or 1 mm, etc. In the embodiment where the spacing distance between the first suspension section 301 and the first radiation section 220 is within the range of 1 mm to 2 mm, the spacing distance between the first suspension section 301 and the first radiation section 220 may be 1 mm, or 1.3 mm, or 1.5 mm, or 1.8 mm, or 2 mm, etc.

[0067] Optionally, the spacing distance between the second suspension section 302 and the second radiation section 221 is within the range of 4 mm to 6 mm, or the spacing distance between the second suspension section 302 and the second radiation section 221 is within the range of 6 mm to 8 mm. In the embodiment where the spacing distance between the second suspension section 302 and the second radiation section 221 is within the range of 4 mm to 6 mm, the spacing distance between the second suspension section 302 and the second radiation section 221 may be 4 mm, 5 mm, 6 mm, etc. In the embodiment where the spacing distance between the second suspension section 302 and the second radiation section 221 is within the range of 6 mm to 8 mm, the spacing distance between the second suspension section 302 and the second radiation section 221 may be 6 mm, 7 mm, 8 mm, etc.

[0068] Please refer to Figure 7 and Figure 8 , Figure 7 for Figure 2 The return loss curve diagram when the distance between the suspended branch 30 of the antenna assembly 100 and the second antenna radiator 202 changes, Figure 8 for Figure 2 The radiation efficiency curve diagram is shown when the distance between the suspended branch 30 and the second antenna radiator 202 of the antenna assembly 100 changes. Figure 7 The middle curve e1 is Figure 2 The return loss curve of the antenna assembly 100 is shown when the spacing distance between the first suspension section 301 and the first radiation section 220 is 0.6 mm, and the spacing distance between the second suspension section 302 and the second radiation section 221 is 6 mm. Figure 7 The middle curve e2 is Figure 2 The return loss curve is shown when the spacing distance between the first suspension section 301 and the first radiation section 220 of the antenna assembly 100 is 0.6 mm, and the spacing distance between the second suspension section 302 and the second radiation section 221 is less than 6 mm. Figure 7 The middle curve e3 is Figure 2 The return loss curve of the antenna assembly 100 is shown when the spacing distance between the first suspension section 301 and the first radiation section 220 is 0.6 mm, and the spacing distance between the second suspension section 302 and the second radiation section 221 is greater than 6 mm. Figure 7 It can be seen from the curves e1 and e2 that when the distance between the second suspension section 302 and the second radiation section 221 decreases, the fourth resonance mode still exists, but there will be a certain frequency deviation. Figure 7 It can be seen from the curve e1 and the curve e3 that when the spacing distance between the second suspension section 302 and the second radiation section 221 increases, the fourth resonance mode no longer exists. Figure 8 The middle curve f1 is Figure 2The radiation efficiency curve of the antenna assembly 100 is shown when the spacing distance between the first suspension section 301 and the first radiation section 220 of the antenna assembly 100 is 0.6 mm, and the spacing distance between the second suspension section 302 and the second radiation section 221 is 6 mm. Figure 8 The middle curve f2 is Figure 2 The radiation efficiency curve of the antenna assembly 100 is shown when the spacing distance between the first suspension section 301 and the first radiation section 220 of the antenna assembly 100 is 0.6 mm and the spacing distance between the second suspension section 302 and the second radiation section 221 is less than 6 mm. Figure 8 The middle curve f3 is Figure 2 The radiation efficiency curve of the antenna assembly 100 is shown when the spacing distance between the first suspension section 301 and the first radiation section 220 of the antenna assembly 100 is 0.6 mm and the spacing distance between the second suspension section 302 and the second radiation section 221 is greater than 6 mm. Figure 8 It can be seen from the middle curve f1 and the curve f2 that when the spacing between the second suspension section 302 and the second radiation section 221 decreases, the resonance mode on the suspension branch 30 has little effect on the resonance mode on the second antenna radiator 202. Figure 8 It can be seen from the curve f1 and the curve f3 that when the spacing between the second suspension segment 302 and the second radiation segment 221 increases, the resonance mode on the suspension branch 30 has a small impact on the resonance mode on the second antenna radiator 202 .

[0069] Therefore, by making the spacing distance between the first suspension section 301 and the first radiation section 220 within the range of 0.6mm to 2mm, and the spacing distance between the second suspension section 302 and the second radiation section 221 within the range of 4mm to 8mm, it can be ensured that the antenna assembly 100 has good radiation efficiency in the first frequency band, the second frequency band, the third frequency band and the fourth frequency band, that is, the addition of the fourth frequency band will not sacrifice the performance of the first frequency band, the second frequency band and the third frequency band.

[0070] Please refer to Fig. 9 and Fig.10 , Fig. 9 for Figure 2 The schematic diagram of the distribution of the resonant current when the antenna assembly 100 generates a resonant mode is shown. Fig.10 for Figure 2 A schematic diagram of the resonant current distribution of the suspended branch 30 in the antenna assembly 100 is shown. The fourth resonant mode includes a 1 / 2 wavelength annular mode generated on the suspended branch 30 between the third free end G and the fourth free end H. It can be understood that the fourth resonant mode is a 1 / 2 wavelength mode of the fourth frequency band.

[0071] The resonant current of the fourth resonant mode is mainly distributed on the suspension branch 30 between the third free end G and the fourth free end H. In this embodiment, the distribution of the resonant current of the fourth resonant mode can be referred to Fig. 9 As shown by the middle dotted line I4. The resonant current of the fourth resonant mode is distributed in a weak-strong-weak manner in the extension direction of the suspended branch 30. The resonant current of the fourth resonant mode forms a current weak point at the third free end G and another current weak point at the fourth free end H. In the embodiment of the present application, the extension direction of the suspended branch 30 is the length direction of the suspended branch 30. Among them, the fourth resonant mode is an annular mode, which can be understood as the resonant current of the fourth resonant mode is distributed in an annular manner on the suspended branch 30.

[0072] By making the fourth resonance mode include a 1 / 2 wavelength annular mode generated on the suspended branch 30 between the third free end G and the fourth free end H, it is advantageous to arrange the suspended branch 30 for generating the fourth resonance mode in a smaller space and ensure the efficiency of the fourth resonance mode.

[0073] In a possible embodiment, the physical length of the suspended branch 30 is within the range of 1 / 2 wavelength ±0.6 mm of the fourth frequency band.

[0074] Please refer to Fig.11 and Fig.12 , Fig.11 for Figure 2 The return loss curve diagram of the antenna assembly 100 when the length of the suspension branch 30 changes is shown. Fig.12 for Figure 2 The radiation efficiency curve of the antenna assembly 100 is shown when the length of the suspended branch 30 changes. Fig.11 The middle curve g1 is Figure 2 The return loss curve of the suspended branch 30 of the antenna assembly 100 shown is when the length is 1 / 2 wavelength of the fourth frequency band. In this embodiment, the fourth frequency band is the N79 frequency band, and the length of the suspended branch 30 is approximately 17.7 mm, wherein the length of the first suspended segment 301 is approximately 15.8 mm, and the length of the second suspended segment 302 is approximately 11.9 mm. Fig.11 The middle curve g2 is Figure 2 The return loss curve is shown when the length of the first suspension section 301 of the antenna assembly 100 is increased by 0.6 mm. Fig.11 The middle curve g3 is Figure 2 The return loss curve is shown when the length of the first suspension section 301 of the antenna assembly 100 is shortened by 0.6 mm. Fig.11 The middle curve g4 is Figure 2 The return loss curve is shown when the length of the second suspension section 302 of the antenna assembly 100 is increased by 0.6 mm. Fig.11 The middle curve g5 is Figure 2The return loss curve is shown when the length of the second suspension section 302 of the antenna assembly 100 is shortened by 0.6 mm. Fig.11 The midpoint 1 is the resonance point of the curve g1 in the fourth frequency band. Fig.11 The midpoint 2 is the resonance point of the curve g2 in the fourth frequency band. Fig.11 The midpoint 3 is the resonance point of the curve g3 in the fourth frequency band. Fig.11 The midpoint 4 is the resonance point of the curve g4 in the fourth frequency band. Fig.11 The midpoint 5 is the resonance point of the curve g5 in the fourth frequency band. Fig.11 It can be seen from curves g1, g2, g3, g4 and g5 that when the antenna assembly 100 is provided with a suspended branch 30 and the physical length of the suspended branch 30 is within the range of 1 / 2 wavelength ±0.6 mm of the fourth frequency band, the antenna assembly 100 can support the fourth frequency band. Fig.12 The middle curve h1 is Figure 2 The radiation efficiency curve shown is when the length of the suspended branch 30 of the antenna assembly 100 is 1 / 2 wavelength of the fourth frequency band. Fig.12 The middle curve h2 is Figure 2 The radiation efficiency curve is shown when the length of the first suspension section 301 of the antenna assembly 100 increases by 0.6 mm. Fig.12 The middle curve h3 is Figure 2 The radiation efficiency curve is shown when the length of the first suspension section 301 of the antenna assembly 100 is shortened by 0.6 mm. Fig.12 The middle curve h4 is Figure 2 The radiation efficiency curve is shown when the length of the second suspension section 302 of the antenna assembly 100 is increased by 0.6 mm. Fig.12 The middle curve h5 is Figure 2 The radiation efficiency curve when the length of the second suspension section 302 of the antenna assembly 100 is shortened by 0.6 mm is shown. Fig.12 It can be seen from the figure that when the length of the suspended branch 30 of the antenna assembly 100 changes within the range of 1 / 2 wavelength ±0.6 mm of the fourth frequency band, the radiation efficiency of the fourth frequency band is about -5 dB, and the radiation efficiency is good.

[0075] Therefore, by making the physical length of the suspended branch 30 within the range of 1 / 2 wavelength ±0.6mm of the fourth frequency band, the suspended branch 30 and the first antenna radiator 102 can be spaced apart and coupled, and the suspended branch 30 and the second antenna radiator 202 can be spaced apart and coupled, so that the suspended branch 30 can generate a fourth resonant mode supporting the fourth frequency band, thereby ensuring the radiation performance of the antenna assembly 100 in the fourth frequency band.

[0076] Furthermore, the second antenna radiator 202 also generates a fifth resonance mode supporting the fifth frequency band under the excitation of the second feed source 201. It can be understood that the resonance current of the fifth resonance mode is mainly distributed on the second antenna radiator 202. The second antenna radiator 202 can also perform communication in the fifth frequency band.

[0077] By enabling the second antenna radiator 202 to generate a fifth resonance mode supporting a fifth frequency band under the excitation of the second feed source 201 , the number of frequency bands supported by the antenna assembly 100 can be further increased.

[0078] In a possible embodiment, the first frequency band is the GPS L5 frequency band, the second frequency band is the N78 frequency band, the third frequency band is located at a medium-high frequency, and the fifth frequency band is located at a medium-high frequency.

[0079] In this embodiment, the third frequency band may include at least one of the B1 band, the B2 band, the B3 band, the B4 band, the B7 band, the B34 band, the B38 band, the B39 band, the B40 band, the B41 band, the N1 band, the N2 band, the N3 band, the N7 band, the N34 band, the N38 band, the N39 band, the N40 band, the N41 band, and the WIFI 2.4G band. The fifth frequency band may include at least one of the B1 band, the B2 band, the B3 band, the B4 band, the B7 band, the B34 band, the B38 band, the B39 band, the B40 band, the B41 band, the N1 band, the N2 band, the N3 band, the N7 band, the N34 band, the N38 band, the N39 band, the N40 band, the N41 band, and the WIFI 2.4G band. The third frequency band and the fifth frequency band are different. Optionally, the third frequency band is higher than the fifth frequency band, or the third frequency band is lower than the fifth frequency band.

[0080] Of course, in other possible embodiments, the first frequency band may also be located at a low frequency, wherein the low frequency includes a frequency band less than 1 GHz.

[0081] In a possible embodiment, Fig. 9As shown, the first resonance mode includes a 1 / 2 wavelength mode generated on the first antenna radiator 102 between the first feed point C and the first ground end A. The second resonance mode includes a 1 / 4 wavelength mode generated on the second antenna radiator 202 between the second feed point F and the second free end E, and a reverse resonance current generated on the first antenna radiator 102 between the first free end B and the first feed point C, and the third frequency band is lower than the fifth frequency band. The third resonance mode includes a 1 / 4 wavelength mode generated on the second antenna radiator 202 between the second free end E and the second ground end D. The fifth resonance mode includes a 1 / 4 wavelength mode generated on the second antenna radiator 202 between the second feed point F and the second free end E, and a co-directional resonance current generated on the first antenna radiator 102 between the first free end B and the first feed point C.

[0082] It can be understood that the first resonance mode includes a 1 / 2 wavelength mode of the first frequency band, the second resonance mode includes a 1 / 4 wavelength mode of the second frequency band, the third resonance mode includes a 1 / 4 wavelength mode of the third frequency band, and the fifth resonance mode includes a 1 / 4 wavelength mode of the fifth frequency band.

[0083] The direction of the resonant current generated by the second resonant mode on the second antenna radiator 202 between the second feeding point F and the second free end E is opposite to the direction of the resonant current generated by the second resonant mode on the first antenna radiator 102 between the first feeding point C and the first free end B. The direction of the resonant current generated by the fifth resonant mode on the second antenna radiator 202 between the second feeding point F and the second free end E is the same as the direction of the resonant current generated by the fifth resonant mode on the first antenna radiator 102 between the first feeding point C and the first free end B.

[0084] In this embodiment, the resonant current distribution of the first resonant mode can be referred to Fig. 9 The distribution of the resonant current in the second resonant mode can be referred to Fig. 9 The distribution of the resonant current in the third resonant mode can be referred to Fig. 9 The distribution of the resonant current in the fifth resonant mode can be referred to Fig. 9 As shown in the dotted line I5.

[0085] In addition, if Fig.13 As shown, the present application also provides an electronic device 1000, Fig.13A structural schematic diagram of an electronic device 1000 provided in an embodiment of the present application. The electronic device 1000 may be a mobile phone, a tablet computer, a laptop computer, a wearable device (such as a watch, a bracelet, etc.), etc. In the embodiment of the present application, a mobile phone is taken as an example. The electronic device 1000 includes a middle frame assembly, a circuit board assembly, and an antenna assembly 100 described in any of the above embodiments. The middle frame assembly includes a frame 11, and the first antenna radiator 102 and the second antenna radiator 202 are arranged on the frame 11. The circuit board assembly includes at least one circuit board 21, the first feed source 101, and the second feed source 201 are arranged on the circuit board 21, and the suspended branch 30 is arranged between the circuit board 21 and the frame 11.

[0086] In this embodiment, the frame 11 is a conductive frame, and the material of the frame 11 is a conductive material such as metal, alloy, etc. In a possible embodiment, the frame 11 may include a first sub-frame and a second sub-frame connected by bending. The first sub-frame may be a top frame. The first antenna radiator 102 may be arranged on the first sub-frame. Part of the second antenna radiator 202 is arranged on the first sub-frame, and the other part of the second antenna radiator 202 is arranged on the second sub-frame.

[0087] The present application does not specifically limit the number of circuit boards 21. For example, the circuit board assembly may include a main circuit board and at least one auxiliary circuit board. The first feed 101 and the second feed 201 may be disposed on the same circuit board 21. Optionally, the RF chip, the first feed 101, and the second feed 201 are all disposed on the main circuit board; or, the RF chip is disposed on the main circuit board, and the first feed 101 and the second feed 201 are both disposed on the auxiliary circuit board.

[0088] The suspension branch 30 may be fixed on the circuit board 21 by a bracket. In the width direction of the electronic device 1000, in the length direction of the electronic device 1000, and in the thickness direction of the electronic device 1000, there may be gaps between the suspension branch 30 and the second antenna radiator 202 and the first antenna radiator 102.

[0089] The features mentioned in the description, claims and drawings can be combined with each other as desired as long as they are meaningful within the scope of the present application. The advantages and features described for the antenna assembly 100 apply to the electronic device 1000 in a corresponding manner.

[0090] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application, and these improvements and modifications are also regarded as the scope of protection of the present application.

Claims

1. An antenna assembly, characterized in that: include: A first antenna unit, comprising a first feed source and a first antenna radiator, wherein the first antenna radiator has a first ground end, a first free end, and a first feeding point located between the first ground end and the first free end, the first ground end is grounded, the first feeding point is electrically connected to the first feed source, and the first antenna radiator generates a first resonant mode supporting a first frequency band under the excitation of the first feed source; a second antenna unit, comprising a second feed source and a second antenna radiator, wherein the second antenna radiator has a second ground end, a second free end, and a second feeding point located between the second ground end and the second free end, the second ground end is grounded, the second feeding point is electrically connected to the second feed source, a coupling gap is formed between the second free end and the first free end, and the second antenna radiator generates a second resonance mode supporting a second frequency band and a third resonance mode supporting a third frequency band under the excitation of the second feed source; and A suspended branch, wherein the suspended branch is spaced apart and coupled to the first antenna radiator, the suspended branch is spaced apart and coupled to the second antenna radiator, and the suspended branch is used to generate a fourth resonance mode supporting a fourth frequency band.

2. The antenna assembly according to claim 1, characterized in that: The fourth frequency band is located at an ultra-high frequency, and at least one of the second frequency band and the third frequency band is located at an ultra-high frequency.

3. The antenna assembly according to claim 1, characterized in that: The second antenna radiator includes a first radiating section and a second radiating section connected in a bending manner, an end of the first radiating section away from the second radiating section forms the second free end, an end of the second radiating section away from the first radiating section forms the second grounding end, the second antenna radiator and the first antenna radiator are surrounded to form a receiving space, the suspension branch is located in the receiving space, the suspension branch includes a first suspension section and a second suspension section connected in a bending manner, the first suspension section is arranged in parallel with the first radiating section, the second suspension section is arranged in parallel with the second radiating section, an end of the first suspension section away from the second suspension section forms a third free end, an end of the second suspension section away from the first suspension section forms a fourth free end, the orthographic projection of the third free end on the surface where the first antenna radiator is located is located between the first feeding point and the first free end, and the orthographic projection of an end of the first suspension section connected to the second suspension section on the surface where the first radiating section is located is located on the first radiating section.

4. The antenna assembly according to claim 3, characterized in that: The spacing distance between the first suspension section and the first radiation section is within the range of 0.6 mm to 2 mm, and the spacing distance between the second suspension section and the second radiation section is within the range of 4 mm to 8 mm.

5. The antenna assembly according to claim 3, characterized in that: The fourth resonance mode includes a 1 / 2 wavelength annular mode generated on the suspended branch between the third free end and the fourth free end.

6. The antenna assembly according to claim 5, characterized in that: The physical length of the suspended branch is within the range of 1 / 2 wavelength ±0.6 mm of the fourth frequency band.

7. The antenna assembly according to any one of claims 1 to 6, characterized in that: The second antenna radiator also generates a fifth resonance mode supporting a fifth frequency band under the excitation of the second feed source.

8. The antenna assembly according to claim 7, characterized in that: The first frequency band is the GPS L5 frequency band, the second frequency band is the N78 frequency band, the third frequency band is located at a medium to high frequency, and the fifth frequency band is located at a medium to high frequency.

9. The antenna assembly according to claim 8, characterized in that: The first resonant mode includes a 1 / 2 wavelength mode generated on the first antenna radiator between the first feeding point and the first ground end, the second resonant mode includes a 1 / 4 wavelength mode generated on the second antenna radiator between the second feeding point and the second free end, and a reverse resonant current generated on the first antenna radiator between the first free end and the first feeding point, the third frequency band is lower than the fifth frequency band, the third resonant mode includes a 1 / 4 wavelength mode generated on the second antenna radiator between the second free end and the second ground end, the fifth resonant mode includes a 1 / 4 wavelength mode generated on the second antenna radiator between the second feeding point and the second free end, and a co-directional resonant current generated on the first antenna radiator between the first free end and the first feeding point.

10. An electronic device, characterized in that: It includes a middle frame assembly, a circuit board assembly and an antenna assembly according to any one of claims 1 to 9, the middle frame assembly includes a frame, the first antenna radiator and the second antenna radiator are arranged on the frame, the circuit board assembly includes at least one circuit board, the first feed source and the second feed source are arranged on the circuit board, and the suspended branch is arranged between the circuit board and the frame.

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