Antenna assembly and electronic equipment

Abstract

The invention provides an antenna assembly and electronic equipment, and relates to the technical field of communication. The antenna assembly comprises an antenna body and a parasitic unit. The parasitic unit and the radiation end of the radiation branch knot of the antenna body are arranged at intervals; the parasitic unit comprises a first radiation branch knot and a second radiation branch knot, a first grounding point is arranged between the first radiation branch knot and the second radiation branch knot, and the first radiation branch knot and the second radiation branch knot are grounded through the first grounding point. According to the antenna assembly determined by the invention, the influence of the ring LOOP mode in the degenerate mode on the antenna performance can be effectively reduced, and the anti-interference capability of the antenna is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and particularly to an antenna assembly and an electronic device. Background Art

[0002] In various antenna designs, parasitic elements with reasonable structures and sizes can improve the performance of the antenna and increase the radiation efficiency of the antenna by coupling and resonating with the main antenna body. Summary of the Invention

[0003] The present disclosure aims to solve at least one of the technical problems in the related art to some extent.

[0004] An embodiment of the first aspect of the present disclosure provides an antenna assembly, including an antenna body and a parasitic element; the parasitic element is spaced apart from the radiation end of the radiation branch of the antenna body; the parasitic element includes a first radiation branch and a second radiation branch, and a first grounding point is provided between the first radiation branch and the second radiation branch, and the first radiation branch and the second radiation branch are grounded through the first grounding point.

[0005] Optionally, the difference between the length of the first radiation branch and the length of the second radiation branch is less than a difference threshold.

[0006] Optionally, the length of the first radiation branch is less than or equal to the length of the second radiation branch.

[0007] Optionally, the length value of the first radiation branch corresponds to 1 / 4 wavelength of the radiated frequency band.

[0008] Optionally, an antenna gap is provided between the radiation branch of the antenna body and the first radiation branch.

[0009] Optionally, the antenna body is an IFA antenna.

[0010] Optionally, the first end of the antenna body is grounded, and the second end of the antenna body is the radiation end; the antenna body includes a feeding point for connecting a feeder, and the distance between the feeding point and the first end is less than the distance between the feeding point and the second end.

[0011] Optionally, when the antenna body and the first radiation branch operate in the LOOP mode, the current direction of the second radiation branch is opposite to the current direction of the first radiation branch.

[0012] An embodiment of the second aspect of the present disclosure provides an electronic device, including: the antenna assembly provided in the first aspect of the present disclosure.

[0013] Optionally, the antenna assembly is disposed on the frame of the electronic device.

[0014] The technical solutions provided by the present disclosure may include the following beneficial effects:

[0015] In an embodiment of the present disclosure, when the degenerate mode of the antenna includes a loop mode, by determining the lengths and structures of the first radiation branch and the second radiation branch in the antenna parasitic unit, the influence of the loop mode in the degenerate mode on the antenna performance can be effectively reduced, and the performance and anti-interference ability of the antenna are improved.

[0016] The additional aspects and advantages of the present disclosure will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present disclosure. Description of the Drawings

[0017] The above-mentioned and / or additional aspects and advantages of the present disclosure will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0018] Figure 1 is a schematic structural diagram of an antenna assembly proposed in an embodiment of the present disclosure;

[0019] FIG. 2 is a schematic current diagram in the antenna assembly proposed in an embodiment of the present disclosure;

[0020] Figure 3 is a schematic flow diagram of a method for determining an antenna parasitic unit provided in an embodiment of the present disclosure;

[0021] Figure 4 is a schematic flow diagram of a method for determining an antenna parasitic unit provided in another embodiment of the present disclosure;

[0022] Figure 5 is a schematic structural diagram of a device for determining an antenna parasitic unit provided in an embodiment of the present disclosure;

[0023] As shown in the figure: 1. Antenna body, 2. Parasitic unit, 21. First radiation branch, 22. Second radiation branch, 23. First grounding point, 3. Antenna gap, 11. First end of the antenna body, 12. Second end of the antenna body, 13. Feeding point. Detailed Embodiments

[0024] The embodiments of the present disclosure will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present disclosure, and should not be construed as a limitation of the present disclosure.

[0025] The antenna assembly and electronic device of the embodiments of the present disclosure will be described below with reference to the drawings.

[0026] In various practical applications of antennas, the radiation of the antenna components designed by existing technical solutions is often affected by external components of electronic devices or usage methods. For example, it is affected by the installation of mobile phone cases, heat dissipation clips, and the posture of users holding the device, etc., resulting in the offset of key frequency bands. At this time, in order to avoid the degradation of antenna performance, parasitic elements are usually added to the antenna to increase the coverage band of the antenna, thereby improving the performance of the antenna. However, the added parasitic elements usually cause the antenna to generate a loop (LOOP) mode, which narrows the standing wave bandwidth of the antenna, and further increases the radiation efficiency degradation rate of the antenna above the standing wave center frequency band, resulting in weak anti-interference ability of the antenna.

[0027] In the antenna component provided in the present disclosure, the parasitic element spaced from the antenna body includes two radiation branches, so that not only can the coverage band of the antenna be increased, the standing wave bandwidth of the antenna in the working frequency band be improved, but also the influence of the LOOP mode on the radiation efficiency and anti-interference ability of the antenna can be minimized.

[0028] The antenna component proposed in the present disclosure can be used in the design of various antennas, such as patch antennas, high-order degenerate mode antennas in resonant cavities, degenerate mode antennas in rectangular waveguides, and so on.

[0029] Figure 1 It is a schematic structural diagram of an antenna component provided by an embodiment of the present disclosure.

[0030] As Figure 1 shown, the antenna component includes an antenna body 1 and a parasitic element 2. The parasitic element 2 is spaced from the radiation end of the radiation branch of the antenna body 1.

[0031] Moreover, the parasitic element 2 of the antenna component includes a first radiation branch 21 and a second radiation branch 22. A first grounding point 23 is provided between the first radiation branch 21 and the second radiation branch 22. The first radiation branch 21 and the second radiation branch 22 are respectively grounded through the first grounding point 23.

[0032] It should be noted that Figure 1 the "T" - shaped structure of the parasitic element shown in

[0033] In the antenna assembly provided by the present disclosure, in addition to the radiator in the antenna body 1 radiating energy, the first radiation branch 21 and the second radiation branch 22 in the parasitic unit 2 can also radiate energy respectively, thereby increasing the frequency band covered by the antenna assembly. Moreover, since the first radiation branch 21 and the second radiation branch 22 in the parasitic unit 2 are respectively arranged on both sides of the first grounding point 23, the current direction in the second radiation branch 22 is opposite to the current direction in the first radiation branch 21, thereby reducing the influence of the LOOP mode on the radiation efficiency and anti-interference ability of the antenna.

[0034] Optionally, as Figure 1 shown, the distance between the first radiation branch 21 and the antenna body 1 is less than the distance between the second radiation branch 22 and the antenna body 1.

[0035] In some embodiments, the difference between the length of the first radiation branch 21 and the length of the second radiation branch 22 is less than the difference threshold.

[0036] It can be understood that the length values of the first radiation branch 21 and the second radiation branch 22 are related to the energy value they can radiate and the frequency band range they can cover. In the present disclosure, in order to ensure that on the basis of expanding the frequency band covered by the antenna assembly and avoiding the case of shallower standing waves, the length difference between the first radiation branch 21 and the second radiation branch 22 can be controlled to be less than the difference threshold, so that the second radiation branch 22 can deepen the shallower standing waves caused by the first radiation branch 21, so as to ensure the stable working efficiency and performance of the antenna assembly.

[0037] It should be noted that the difference threshold can be determined according to conditions such as the antenna type and the operating frequency of the antenna. For example, the difference threshold can be 4 mm, and the present disclosure does not limit this.

[0038] In some embodiments, the length of the first radiation branch 21 is less than or equal to the length of the second radiation branch 22. Because when the antenna assembly operates in the radiation frequency band, the current in the first radiation branch 21 and the antenna body 1 will generate a loop (LOOP) mode, making the standing wave bandwidth of the antenna narrower. Therefore, in the present disclosure, in order to minimize the interference of the LOOP mode generated by the first radiation branch 21 and improve the performance of the antenna, the length of the second radiation branch 22 in the parasitic unit can be greater than or equal to the length of the first radiation branch 21.

[0039] In some embodiments, the length value of the first radiation branch 21 corresponds to 1 / 4 wavelength of the radiation frequency band. At this time, resonance can occur in the first radiation branch 21, and the conversion efficiency of signal transmission and reception in the radiation frequency band is the highest, and the impedance matching generated at the end of the first radiation branch 21 is the best, which can further improve the radiation efficiency of the antenna assembly.

[0040] In some embodiments, an antenna slot 3 is provided between the radiation branches of the antenna body 1 (i.e., the second end 7 of the antenna body) and the first radiation branch 21.

[0041] It can be understood that by providing the antenna slot 3 between the first radiation branch 21 and the radiation branch of the antenna body 1, the radiation branch of the antenna body 1 can transfer the feeding signal to the first radiation branch 21 through the antenna slot 3 while radiating energy, so that the parasitic unit 2 can also obtain the feeding signal and radiate through the radiation branch.

[0042] It can be understood that the frequency and impedance of the antenna can be adjusted by adjusting the width of the antenna slot 3, thereby improving the stability of the antenna assembly. Therefore, the width of the antenna slot 3 can be designed according to actual application requirements, and the present disclosure does not limit this.

[0043] In some embodiments, the antenna body 1 is an Inverted-F antenna (IFA). The length of the radiation branch of the IFA can be 1 / 4 wavelength, and the IFA uses the return ground to the end antenna radiation branch and the radiation branch from the feeding point to the end to radiate energy.

[0044] It should be noted that the structure of the antenna body 1 in the antenna assembly can also be determined according to actual application scenarios, and the present disclosure does not limit this.

[0045] In some embodiments, when the antenna body is an IFA antenna, as Figure 1 shown, the first end 11 of the antenna body is grounded, and the second end 12 of the antenna body is the radiation end; the antenna body includes a feeding point 13 for connecting to a feed source, and the distance between the feeding point 13 and the first end 11 is less than the distance between the feeding point 13 and the second end 12.

[0046] The antenna body 1 obtains an electrical signal from a feed source such as a radio frequency signal source or a driving circuit at the antenna input through the feeding point 13, and transmits it to the radiator part of the antenna, thereby generating and radiating electromagnetic waves. By determining a reasonable feeding point position in the antenna body 1, the impedance matching, radiation efficiency, and frequency tuning of the antenna can be effectively optimized. In the present disclosure, when the distance between the feeding point 13 and the first end 11 is less than the distance between the feeding point 13 and the second end 12, the performance and stability of the antenna can be more effectively improved.

[0047] In some embodiments, when the antenna body 1 and the first radiation branch 21 operate in the LOOP mode, the current direction in the second radiation branch 22 is opposite to the current direction in the first radiation branch 11.

[0048] It can be understood that when the antenna operates in a preset frequency band, a current is generated in the first radiation branch 21 in a direction opposite to the current direction in the antenna body 1, resulting in the LOOP mode being included in the operation of the antenna assembly. Therefore, by adding a second radiation branch 22 with a current direction opposite to that in the first radiation branch 21 in the parasitic unit, the influence of the LOOP mode on the antenna performance can be reduced.

[0049] It should be noted that in order to minimize the influence of the LOOP mode on the antenna performance, when ensuring that the current direction in the second radiation branch 22 in the antenna parasitic unit is opposite to that in the first radiation branch 21, the structure of the antenna parasitic unit can be in any form. For example, the angle between the first radiation branch 21 and the first grounding point is different from the angle between the second radiation branch 22 and the first grounding point 23. The present disclosure only gives a schematic illustration taking the "T" shape as an example.

[0050] At the operating frequency of the antenna assembly, the current schematic diagram in the antenna assembly determined by the present disclosure can be as shown in FIG. 2.

[0051] As Figure 2a shown, in the case where the antenna assembly only includes a parasitic unit in an L shape, that is, when the parasitic unit only includes one radiation branch 4 and the first grounding point 5, the current distribution diagram of each part in the antenna assembly is as Figure 2a shown. Figure 2b FIG. 3 is a current schematic diagram of each part in the case where the antenna assembly includes a parasitic unit in a "T" shape.

[0052] Among them, the arrow direction in FIG. 2 represents the current direction. The larger the size of the arrow and the more the number of arrows, the greater the current value at that place.

[0053] As shown in FIG. 2, the current at the antenna gap 5 between the antenna body and the parasitic unit is 0, and the current is the largest at the first grounding point of the parasitic unit ( Figure 2a 5 in Figure 2b or Figure 2a 23 in Figure 2b ). It can be seen that in the L-shaped parasitic unit, since the current passing through the radiation branch 4 and the first grounding point 5 is very large, the radiation efficiency of the antenna decreases rapidly in the center frequency band of the standing wave, and the anti-interference ability of the antenna becomes weak. While in the "T" - shaped parasitic unit, since the second radiation branch 22 is included, as shown, the current passing through the second radiation branch 22, due to being in a direction opposite to the current passing through the first radiation branch 21, generates a canceling effect at the first grounding end 23, thus greatly reducing the current passing through the first grounding point 23, so that the antenna can also achieve effective radiation in the LOOP mode, improving the performance and anti-interference ability of the antenna.

[0054] An embodiment of the present disclosure also provides an electronic device, including the antenna assembly as in the embodiment of the present disclosure.

[0055] In some embodiments, the antenna assembly is disposed on the frame of the electronic device. In the antenna design of mobile devices and wireless communication devices, since the frame of the device is usually made of metal or conductor, disposing the antenna assembly at the frame position can utilize the frame as part of the antenna to radiate and receive wireless signals, which can not only save the design space of the antenna in the electronic device, but also make the antenna closely integrated with the housing structure of the device, facilitating the compactness of the overall design.

[0056] With the antenna assembly provided by the present disclosure, since the two radiators included in the parasitic unit are respectively disposed on both sides of the grounding point, the influence of the LOOP mode on the antenna assembly can be reduced, improving the performance and anti-interference ability of the antenna. Therefore, even when disposed in the frame of the electronic device, in actual use, such as when functional devices such as a mobile phone case or a heat dissipation clip are installed, good antenna performance can still be maintained at frequency offset.

[0057] It should be noted that the specific type of the electronic device can be set according to actual needs, and there is no limitation thereto. By way of example, the terminal device can be a mobile phone, a tablet computer, a wearable intelligent device, etc.

[0058] Figure 3 It is a schematic flow chart of a method for determining an antenna parasitic unit provided by an embodiment of the present disclosure.

[0059] As Figure 3 shown, the method for determining the antenna parasitic unit may include the following steps:

[0060] Step 301, when the degenerate mode of the antenna includes the loop LOOP mode, determine that the parasitic unit of the antenna includes a second radiation branch.

[0061] Wherein, the current direction in the second radiation branch is opposite to the current direction in the first radiation branch that generates the LOOP mode.

[0062] In the present disclosure, the degenerate mode refers to a mode in an electromagnetic waveguide where there are multiple modes with the same frequency, similar transmission characteristics, but different current directions. The loop LOOP mode is caused by a ring conductor or a loop current in the antenna structure, which may narrow the standing wave bandwidth and cause a rapid decrease in the radiation efficiency above the center frequency band of the standing wave, resulting in weak anti-interference ability of the antenna.

[0063] In an embodiment of the present disclosure, when the degenerate mode of the antenna includes a loop mode, it is described that there is a first radiating stub with a current direction opposite to that of the current in the antenna body, such that the body current and the current in the first radiating stub form a loop structure. Therefore, in order to cancel the influence of the loop mode on the antenna, a second radiating stub with a current direction opposite to that of the current in the first radiating stub can be added to the parasitic element of the antenna to change the current distribution in the antenna, so as to minimize the influence of the loop mode and improve the antenna performance.

[0064] In the present disclosure, the parasitic element further includes a first grounding point, and the first radiating stub and the second radiating stub are grounded through the first grounding point respectively.

[0065] It should be noted that the length of the first grounding point refers to the vertical distance between the parasitic element and the ground or other objects. The length of the first grounding point can directly affect the signal transmission quality. For example, the larger the length value, the less the signal is blocked and the better the transmission quality. In the present disclosure, the length of the first grounding point of the parasitic element can be set as needed, such as being the same as the length of the grounding end of the antenna body, or the difference between the length of the grounding end in the antenna body is less than the difference threshold.

[0066] It should be noted that the distance between the first radiating stub and the antenna body is less than the distance between the second radiating stub and the antenna body.

[0067] In an embodiment of the present disclosure, when the degenerate mode of the antenna includes a loop mode, a second radiating stub is determined in the parasitic element of the antenna, and the current direction in the second radiating stub is opposite to the current direction in the first radiating stub that generates the loop mode. Thus, the influence of the loop mode in the degenerate mode on the antenna performance can be effectively reduced, and the performance and anti-interference ability of the antenna are improved.

[0068] Figure 4 It is a schematic flow chart of a method for determining the parasitic element of an antenna provided by an embodiment of the present disclosure. As Figure 4 shown, the method for determining the parasitic element of the antenna may include the following steps:

[0069] Step 401, determine the frequency value corresponding to the degenerate mode.

[0070] In an embodiment of the present disclosure, after determining the degenerate mode of the antenna, the radiation frequency of the antenna assembly in this mode can be directly obtained. It should be noted that for antennas with different structures, sizes or working environments, the frequencies corresponding to their degenerate modes are different, and can be values in the middle high band (MHB), such as 2.8 GHz, 2.9 GHz, etc.

[0071] Step 402: Determine the first wavelength values corresponding to other modes in the degenerate mode.

[0072] Among them, other modes refer to modes other than the LOOP mode in the degenerate mode, such as the quarter-wavelength mode, the half-wavelength mode, etc.

[0073] In the embodiments of the present disclosure, the first wavelength values corresponding to other modes can be calculated based on the formula: wavelength = wave velocity / frequency.

[0074] Step 403: Determine the total length value of the radiation branches in the parasitic element according to the frequency value and the first wavelength value.

[0075] In the embodiments of the present disclosure, according to the frequency value and the first wavelength value, under the condition of satisfying the boundary conditions (the current at the gap between the antenna body and the parasitic element is zero, and the current at the grounding point of the parasitic element is the largest), an optimal total length value of the first radiation branch and the second radiation branch in the parasitic element can be determined, so that the radiation branches in the parasitic element can resonate with the degenerate mode at the same time, improving the radiation efficiency of the antenna.

[0076] Optionally, multiple length candidate values can be determined according to the frequency value and the first wavelength value. Then, the minimum value among the multiple length candidate values is determined as the total length value of the radiation branches in the parasitic element.

[0077] In the embodiments of the present disclosure, multiple length candidate values can be obtained through calculation, so that the second radiation branch can effectively reduce the influence of the LOOP mode. Determining the minimum value among the length candidate values as the total length value of the radiation branches in the parasitic element can, while ensuring the improvement effect of the parasitic element on the antenna performance, also reduce the space and volume occupied by the parasitic element by shortening the length of the radiation branches.

[0078] In the embodiments of the present disclosure, when the parasitic element includes a first radiation branch and a second radiation branch, the difference between the length of the first radiation branch and the length of the second radiation branch is less than the difference threshold, and the length of the first radiation branch should be less than or equal to the length of the second radiation branch, so that the currents in the two radiation bodies are as equal as possible, minimizing the influence of the LOOP mode on the antenna performance.

[0079] In the embodiments of the present disclosure, in order to ensure that the first radiation branch has the highest conversion efficiency for signal transmission and reception in the radiation frequency band, the length value of the first radiation branch can correspond to 1 / 4 wavelength of the radiation frequency band.

[0080] In the embodiments of the present disclosure, first, the frequency value corresponding to the degenerate mode is determined, then the first wavelength value corresponding to other modes in the degenerate mode is determined, and then the total length value of the radiation branches in the parasitic element is determined according to the frequency value and the first wavelength value. Thus, while ensuring the high performance of the antenna assembly, the size of the radiation branches in the antenna parasitic element is minimized as much as possible, reducing the size and occupied space of the antenna.

[0081] To implement the above embodiments, the present disclosure also proposes a device for determining an antenna parasitic element.

[0082] Figure 5 It is a schematic structural diagram of the device for determining an antenna parasitic element provided by the embodiments of the present disclosure.

[0083] As Figure 5 shown, the device 500 for determining an antenna parasitic element may include:

[0084] A processing module 501, configured to determine that a second radiation branch is included in the parasitic element of the antenna when the degenerate mode of the antenna includes a loop LOOP mode, wherein the current direction in the second radiation branch is opposite to the current direction in the first radiation branch that generates the LOOP mode.

[0085] In some embodiments, the parasitic element of the antenna may further include a first grounding point, wherein the first radiation branch and the second radiation branch are respectively grounded through the first grounding point.

[0086] In some embodiments, the distance between the first radiation branch and the antenna body is less than the distance between the second radiation branch and the antenna body.

[0087] In some embodiments, the device 500 for determining an antenna parasitic element may further include:

[0088] A first determination module, configured to determine the frequency value corresponding to the degenerate mode;

[0089] A second determination module, configured to determine the first wavelength value corresponding to other modes in the degenerate mode;

[0090] A third determination module, configured to determine the total length value of the radiation branches in the parasitic element according to the frequency value and the first wavelength value.

[0091] In some embodiments, the third determination module is specifically configured to:

[0092] Determine a plurality of length candidate values according to the frequency value and the first wavelength value;

[0093] Determine the minimum value among the plurality of length candidate values as the total length value of the radiation branches in the parasitic element.

[0094] For the functions and specific implementation principles of the above-mentioned modules in the embodiments of the present disclosure, reference may be made to the above-mentioned method embodiments, and details are not described herein again.

[0095] The apparatus 500 for determining the parasitic unit of the antenna according to the embodiments of the present disclosure, in the case where the degenerate mode of the antenna includes the LOOP mode, determines a second radiating stub in the parasitic unit of the antenna, and the current direction in the second radiating stub is opposite to the current direction in the first radiating stub that generates the LOOP mode. Thus, the influence of the LOOP mode in the degenerate mode on the antenna performance can be effectively reduced, and the performance and anti-interference ability of the antenna are improved.

[0096] It should be noted that in the description of the present disclosure, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more.

[0097] Any process or method description in the flowchart or described in other ways herein can be understood to represent a module, segment, or portion of code including one or more executable instructions for implementing a specific logical function or process. The scope of the preferred embodiments of the present disclosure includes additional implementations, where the functions may be executed in a substantially simultaneous manner or in a reverse order according to the involved functions, rather than in the order shown or discussed, which should be understood by those skilled in the technical field of the embodiments of the present disclosure.

[0098] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0099] Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. An antenna assembly, characterized in that, it includes an antenna body and a parasitic unit; the parasitic unit is arranged at an interval from the radiation end of the radiation branch of the antenna body; the parasitic unit includes a first radiation branch and a second radiation branch, and a first grounding point is arranged between the first radiation branch and the second radiation branch, and the first radiation branch and the second radiation branch are grounded through the first grounding point.

2. The antenna assembly according to claim 1, characterized in that, the difference between the length of the first radiation branch and the length of the second radiation branch is less than a difference threshold.

3. The antenna assembly according to claim 2, characterized in that, the length of the first radiation branch is less than or equal to the length of the second radiation branch.

4. The antenna assembly according to claim 1, characterized in that, the length value of the first radiation branch corresponds to 1 / 4 wavelength of the radiated frequency band.

5. The antenna assembly according to claim 1, characterized in that, an antenna gap is arranged between the radiation branch of the antenna body and the first radiation branch.

6. The antenna assembly according to claim 1, characterized in that, the antenna body is an IFA antenna.

7. The antenna assembly according to claim 5, characterized in that, the first end of the antenna body is grounded, and the second end of the antenna body is the radiation end; the antenna body includes a feeding point for connecting a feed source, and the distance between the feeding point and the first end is less than the distance between the feeding point and the second end.

8. The antenna assembly according to claim 1, characterized in that, when the antenna body and the first radiation branch work in the LOOP mode, the current direction of the second radiation branch is opposite to the current direction of the first radiation branch.

9. An electronic device, characterized in that, it includes the antenna assembly according to any one of claims 1-9.

10. The electronic device according to claim 9, characterized in that, the antenna assembly is arranged on the frame of the electronic device.

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