Antenna apparatus and electronic device

Abstract

The present application discloses an antenna apparatus and an electronic device. The antenna apparatus comprises a radiator main body, a first radiator branch and a second radiator branch. A first end of the radiator main body is separately connected to a first end of the first radiator branch and a first end of the second radiator branch, and a gap is present between the first radiator branch and the second radiator branch. The radiator main body or the second radiator branch is provided with a feed point. A second end of the radiator main body is provided with a grounding point. The antenna apparatus covers a first frequency band by means of the radiator main body, the first radiator branch and the second radiator branch, and further covers a second frequency band by means of the first radiator branch and the second radiator branch. The first frequency band and the second frequency band are different frequency bands.

Description

Antenna devices and electronic equipment

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410503429.6, filed in China on April 25, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of electronic product technology, and in particular to an antenna device and an electronic device. Background Technology

[0004] With the continuous advancement of communication technology, various intelligent auxiliary tools are also emerging. Among these, the increasingly widespread application of mobile positioning systems and wireless networks, coupled with rising demands for signal quality, has led to increasingly stringent performance requirements for antenna systems in electronic devices. Taking mobile terminals such as smartphones as an example, as mobile terminals support more and more frequency bands, and considering factors such as spatial layout limitations, it is necessary to achieve multi-band coverage on a single antenna radiator. Typically, this antenna radiator operates in a single mode (single-mode), and multiple frequency bands need to share the radiation capability of this single mode. This results in increased losses in the antenna matching circuit and decreased radiation performance, and the antenna radiator cannot simultaneously radiate multiple frequency bands. Summary of the Invention

[0005] This application provides an antenna device and electronic device to solve the problem that, in the current situation where multiple frequency bands share the single-mode radiation capability, the loss of the antenna matching circuit increases and the radiation performance decreases, and it is also impossible to simultaneously radiate multiple frequency bands.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] In a first aspect, embodiments of this application provide an antenna device, including: a radiator body, a first radiator segment, and a second radiator segment;

[0008] The first end of the radiator body is connected to the first end of the first radiator branch and the first end of the second radiator branch, respectively, and there is a gap between the first radiator branch and the second radiator branch; the radiator body or the second radiator branch is provided with a power feeding point, and the second end of the radiator body is provided with a grounding point;

[0009] The antenna device covers a first frequency band through the radiator body, the first radiator branch, and the second radiator branch, and also covers a second frequency band through the first radiator branch and the second radiator branch; the first frequency band and the second frequency band are different frequency bands.

[0010] Secondly, embodiments of this application provide an electronic device including the antenna device described above.

[0011] Thus, in the above-described scheme of this application, the first end of the radiator body in the antenna device is connected to the first end of both the first radiator branch and the first end of the second radiator branch, with a gap between the first and second radiator branches; the radiator body or the second radiator branch is provided with a feed point, and the second end of the radiator body is provided with a ground point. In this way, when the feed point is input with a feed signal, the antenna device can cover a first frequency band through the radiator body, the first radiator branch, and the second radiator branch, and can also cover a second frequency band through the first and second radiator branches. This allows the antenna device to have multiple operating modes and cover different frequency bands through different operating modes, achieving simultaneous radiation across multiple frequency bands, reducing antenna matching circuit losses, and improving radiation performance. Attached Figure Description

[0012] Figure 1 shows a schematic diagram of one of the antenna devices according to an embodiment of this application;

[0013] Figure 2 shows a second schematic diagram of the antenna device according to an embodiment of this application;

[0014] Figure 3 shows a third schematic diagram of the antenna device according to an embodiment of this application;

[0015] Figure 4A shows a fourth schematic diagram of the antenna device according to an embodiment of this application;

[0016] Figure 4B shows a fifth schematic diagram of the antenna device according to an embodiment of this application;

[0017] Figure 4C shows a sixth schematic diagram of the antenna device according to an embodiment of this application;

[0018] Figure 5 shows a schematic diagram of the matching circuit according to an embodiment of this application;

[0019] Figure 6 shows a perspective view of the antenna device according to an embodiment of this application;

[0020] Figure 7 shows a partial cross-sectional view of an electronic device according to an embodiment of this application. Detailed Implementation

[0021] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0022] As shown in Figure 1, this application provides an antenna device, including: a radiator body A1, a first radiator branch B1, and a second radiator branch B2.

[0023] The first end of the radiator body A1 is connected to the first end of the first radiator branch B1 and the first end of the second radiator branch B2, respectively, and there is a gap between the first radiator branch B1 and the second radiator branch B2; the radiator body A1 or the second radiator branch B2 is provided with a power supply point D1, and the second end of the radiator body A1 is provided with a grounding point G1.

[0024] The antenna device covers a first frequency band through the radiator body A1, the first radiator branch B1, and the second radiator branch B2, and also covers a second frequency band through the first radiator branch B1 and the second radiator branch B2; the first frequency band and the second frequency band are different frequency bands.

[0025] Optionally, the first radiator branch B1 is arranged along the extension direction of the radiator body A1 (i.e., from left to right in Figure 1), and / or, the second radiator branch B2 is arranged along the extension direction of the radiator body A1 (i.e., from left to right in Figure 1). Alternatively, the extension direction of the first radiator branch B1 may be set at a preset angle to the extension direction of the radiator body A1, and / or the extension direction of the second radiator branch B2 may be set at a preset angle to the extension direction of the radiator body A1, etc., and the embodiments of this application are not limited thereto.

[0026] Optionally, the radiator body A1, the first radiator branch B1, and the second radiator branch B2 constitute the antenna radiator in the antenna device, that is, they serve as the carriers of electromagnetic wave energy radiated in the antenna device.

[0027] In one embodiment, the radiator body A1, the first radiator branch B1, and the second radiator branch B2 can be an integral structure, for example, prepared using laser-direct-structuring (LDS) technology.

[0028] For example, if at least one slot S1 is provided at one end of the metal sheet structure, the metal sheet structure is divided by the slot S1 into the radiator body A1, the first radiator branch B1 and the second radiator branch B2. That is, the radiator body A1, the first radiator branch B1 and the second radiator branch B2 are an integral structure, constituting the antenna radiator in the antenna device.

[0029] Specifically, the width of the slot S1 (i.e., the spacing between the first radiator branch B1 and the second radiator branch B2) and the length of the slot S1 (i.e., the lengths of the first radiator branch B1 and the second radiator branch B2 in the extending direction) can be set according to the actual operating frequency band requirements of the antenna device, and this application embodiment is not limited thereto.

[0030] It should be noted that, as an example, the length (i.e., the distance from left to right in Figure 1) and width (i.e., the distance from top to bottom in Figure 1) of the first radiator branch B1 and the second radiator branch B2 are equal, while, as another example, the length and / or width of the first radiator branch B1 and the second radiator branch B2 may not be equal.

[0031] In another embodiment, the radiator body A1, the first radiator branch B1, and the second radiator branch B2 may also employ antenna technology such as flexible printed circuit (FPC), and the embodiments of this application are not limited thereto.

[0032] Optionally, the second end of the radiator body A1 is provided with a grounding point G1, which is used to connect to a reference ground. For example, the reference body can be the main ground (main floor) in an electronic device, that is, the motherboard and a large piece of metal connected to it, which forms an induced current with the antenna radiator and serves as the reference ground of the antenna.

[0033] For example, a metal solid connecting piece with a certain width can be provided at the second end of the radiator body A1 as a grounding point G1. Optionally, the metal solid connecting piece can be arranged in a direction perpendicular to the extension direction of the radiator body A1, or it can be in other directions, etc., and the embodiments of this application are not limited thereto.

[0034] Optionally, a feed point D1 is also provided on the antenna radiator of the antenna device, serving as the location where the feed line connects to the antenna. For example, when the grounding point of the antenna device is located at the second end of the radiator body A1, and the feed point D1 is located at a position away from the second end of the radiator body A1, the antenna device is formed as an inverted-F antenna (IFA).

[0035] In one embodiment, the feed point D1 is located on the radiator body A1.

[0036] In another embodiment, the feed point D1 is located on the second radiator stub B2, which can improve the excitation performance of the antenna device in simultaneously exciting the mode covering the first frequency band and the mode covering the second frequency band.

[0037] For example, when the second radiator branch B2 is provided with a feed point D1, the feed point D1 is located at the first end of the second radiator branch B2. That is, the feed point D1 is located on the second radiator branch B2 near the end connected to the radiator body A1, so as to better excite the antenna device in both the mode covering the first frequency band and the mode covering the second frequency band simultaneously.

[0038] As shown in Figure 2, the antenna device covers the first frequency band through the radiator body A1, the first radiator branch B1, and the second radiator branch B2. That is, when a feed signal is input at the feed point D1, a current path M1 is excited on the radiator body A1, the first radiator branch B1, and the second radiator branch B2 to cover the first frequency band. This excitation mode of the antenna device can be called the IFA mode. Optionally, the length of the current path M1 excited on the radiator body A1, the first radiator branch B1, and the second radiator branch B2 is N1*(1 / 4)λ1, where N1 is a positive integer and λ1 is the wavelength corresponding to the resonant frequency when the antenna device covers the first frequency band.

[0039] As shown in Figure 3, the antenna device covers the second frequency band through the first radiator branch B1 and the second radiator branch B2. That is, when there is a feed signal input at the feed point D1, a current path M2 is excited on the first radiator branch B1 and the second radiator branch B2 (for example, a current path M2 is excited along the surface of the slot S1 formed between the first radiator branch B1 and the second radiator branch B2), thus covering the second frequency band. This excitation mode of the antenna device can be called the slotted opening mode. Optionally, the length of the current path excited on the first radiator branch B1 and / or the second radiator branch B2 is N2*(1 / 2)λ2, where N2 is a positive integer and λ2 is the wavelength corresponding to the resonant frequency when the antenna device covers the second frequency band.

[0040] Optionally, there is a gap between the first radiator stub B1 and the second radiator stub B2, so that a current path M2 can be jointly excited on the first radiator stub B1 and the second radiator stub B2 to cover the second frequency band. In this way, when the antenna device is excited to the opening slot mode, the physical length of the first radiator stub B1 and / or the second radiator stub B2 can be shortened.

[0041] Optionally, the interval between the first radiator branch B1 and the second radiator branch B2 can be a coupled interval, meaning that the distance between the first radiator branch B1 and the second radiator branch B2 is relatively short and they do not contact each other. Through the interaction of spatial electromagnetic fields, this can further shorten the physical length of the first radiator branch B1 and / or the second radiator branch B2, thereby enabling the antenna device to excite the opening slot mode. Of course, the interval between the first radiator branch B1 and the second radiator branch B2 can also be a non-coupled interval. In this case, the first radiator branch B1 and / or the second radiator branch B2 need to be set to a longer physical length to enable the antenna device to excite the opening slot mode, etc. The embodiments of this application are not limited to this.

[0042] In the above scheme, the first end of the radiator body A1 in the antenna device is connected to the first end of the first radiator branch B1 and the first end of the second radiator branch B2, respectively, and there is a gap between the first radiator branch B1 and the second radiator branch B2; the radiator body A1 or the second radiator branch B2 is provided with a feed point D1, and the second end of the radiator body A1 is provided with a ground point G1. Thus, when a feed signal is input to the feed point D1, the antenna device can cover a first frequency band through the radiator body A1, the first radiator branch B1, and the second radiator branch B2, and can also cover a second frequency band through the first radiator branch B1 and the second radiator branch B2. This allows the antenna device to have multiple operating modes and cover different frequency bands through different operating modes, achieving simultaneous radiation across multiple frequency bands, reducing antenna matching circuit losses, and improving radiation performance.

[0043] Optionally, the antenna device can also cover the second frequency band through the radiator body A1, the first radiator branch B1, and the second radiator branch B2. That is, when the antenna device is excited in IFA mode, it can cover the first and second frequency bands; when the antenna device is excited in slotted mode, it can cover the second frequency band, thereby enhancing the radiation performance of the antenna device covering the second frequency band.

[0044] Optionally, the antenna device further includes: at least one connecting portion; each of the connecting portions is located within the interval, and the connecting portion is connected to the first radiator stub B1 and the second radiator stub B2.

[0045] In one embodiment, the first end of the connecting portion can be connected to the first radiator branch B1, and the second end of the connecting portion can be connected to the second radiator branch B2. That is, the connecting portion can form the slot S1 into a closed structure, or divide the slot S1 into multiple parts. This allows the antenna device to cover more frequency bands when its excitation is in the open slot mode; for example, the antenna device can be configured to cover multiple sub-frequency bands under the second frequency band when its excitation is in the open slot mode.

[0046] In another embodiment, at least one slot S1 is provided at one end of the sheet-like structure, and the sheet-like structure is divided by the slot S1 into the radiator body A1, the first radiator branch B1 and the second radiator branch B2, and the first radiator branch B1 and the second radiator branch B2 are connected by at least one connecting part.

[0047] Optionally, as shown in FIG4A, the first connecting portion E1 in the at least one connecting portion is connected to the second end of the first radiator branch B1 and the second end of the second radiator branch B2.

[0048] In one embodiment, a slot S1 is provided at one end of the sheet-like metal structure, and the sheet-like metal structure is divided by the slot S1 into the radiator body A1, the first radiator branch B1 and the second radiator branch B2, and the first radiator branch B1 and the second radiator branch B2 are connected by a first connecting part E1 to form a closed structure.

[0049] Optionally, as shown in FIG4B, the second connecting portion E2 in the at least one connecting portion is connected to the middle portion of the first radiator branch B1 and the middle portion of the second radiator branch B2; wherein, the middle portion of the first radiator branch B1 is located between the first end and the second end of the first radiator branch B1, and the middle portion of the second radiator branch B2 is located between the first end and the second end of the second radiator branch B2.

[0050] In one embodiment, a metal sheet structure has a first slot S11 and a second slot S12 at one end. The metal sheet structure is divided by the first slot S11 and the second slot S12 into a radiator body A1, a first radiator branch B1, and a second radiator branch B2. A closed structure is formed between the first end of the first radiator branch B1 and the first end of the second radiator branch B2 via a second connecting portion E2, and an open structure is formed between the second end of the first radiator branch B1 and the second end of the second radiator branch B2. Thus, when a feed signal is input at the feed point D1, a first current path can be formed within the closed structure, and a second current path can be formed within the open structure. This allows the antenna device to have more excitation modes and can cover more frequency bands using a multi-mode approach, ensuring simultaneous radiation across multiple frequency bands, reducing antenna matching circuit losses, and improving radiation performance.

[0051] Optionally, as shown in FIG4C, the first connecting part E1 of the at least one connecting part is connected to the second end of the first radiator branch B1 and the second end of the second radiator branch B2; the second connecting part E2 of the at least one connecting part is connected to the middle part of the first radiator branch B1 and the middle part of the second radiator branch B2.

[0052] In one embodiment, a metal sheet structure has a first slot S11 and a second slot S12 at one end. The metal sheet structure is divided by the first slot S11 and the second slot S12 into the radiator body A1, the first radiator branch B1, and the second radiator branch B2. A second connecting portion E2 forms a closed structure between the first end of the first radiator branch B1 and the first end of the second radiator branch B2, and the first connecting portion E1 and the second connecting portion E2 form a closed structure between the second end of the first radiator branch B1 and the second end of the second radiator branch B2. This allows the antenna device to have more excitation modes, enabling it to cover more frequency bands in a multi-mode manner, ensuring simultaneous radiation across multiple frequency bands, reducing antenna matching circuit losses, and improving radiation performance.

[0053] It should be noted that when the number of the second connecting parts E2 is also multiple, that is, multiple closed structures and open structures are formed between the first radiator branch B1 and the second radiator branch B2, so that the antenna device has more excitation modes, so as to cover more frequency bands in a multi-mode manner, ensure that multiple frequency bands are radiated at the same time, and reduce the loss of the antenna matching circuit and improve the radiation performance. The embodiments of this application are not limited thereto.

[0054] Optionally, the first frequency band includes the Global Positioning System (GPS) operating frequency band, and / or the second frequency band includes the Wireless Fidelity (WiFi) frequency band.

[0055] In one embodiment, the antenna device can cover WiFi frequency bands (such as WiFi 2.4G band, WiFi 5G band, etc.) by excitation in open-slot mode, and cover GPS operating frequency bands (such as GPS L1 band, GPS L5 band, etc.) by excitation in IFA mode. Optionally, the antenna device can also be excitation-superimposed to cover WiFi frequency bands in IFA mode.

[0056] For example, the GPS operating frequency band is designed near the resonant frequency f1 of the IFA mode, and the WiFi frequency band is designed near the resonant frequency f2 of the slotted pattern. The width of the slot S1 (i.e., the spacing between the first radiator stub B1 and the second radiator stub B2) and the length of the slot S1 (i.e., the length of the first radiator stub B1 and the second radiator stub B2) can control the resonant frequency f2 of the slotted pattern. Optionally, f2 can be set higher than f1, or f2 can be set lower than f1, etc., so that the antenna device can simultaneously support both the GPS operating frequency band and the WiFi frequency band.

[0057] It should be noted that the embodiments of this application are not limited to the antenna device being used to cover the GPS operating frequency and WiFi frequency band, but can also be applied to antenna systems in other communication frequency bands, such as low, medium and high operating frequency bands such as Long Term Evolution (LTE) and New Radio (NR), etc. The embodiments of this application are not limited thereto.

[0058] Optionally, the antenna device further includes a matching circuit and a feed source F1, wherein the matching circuit is connected between the feed source F1 and the feed point D1. The matching circuit is used to adjust the impedance within the operating frequency band, so that the impedances before and after the circuit are conjugate and well matched.

[0059] Figure 5 shows a schematic diagram of a matching circuit. L1, L2, L3, and L4 are inductors, and C1, C2, and C3 are capacitors. The specific connections are shown in Figure 5. L1 and C1 are used to adjust the initial impedance of the GPS operating frequency band and the WiFi frequency band, respectively. L1 is typically a small inductor, for example, with an inductance value ranging from 10nH to 20nH. C1, C2, and C3 are typically very small capacitors, for example, with a capacitance value ranging from 0.3pF to -0.5pF. L2, L3, and L4 are typically very small inductors, for example, with an inductance value ranging from 2.0nH to -4.0nH. However, the inductance values ​​of the inductors and the capacitance values ​​of the capacitors in this embodiment are not limited to these values.

[0060] In this embodiment, the antenna device supports simultaneous operation of multiple frequency bands and modes by superimposing an opening / slot mode on the antenna radiator of the IFA (Integrated Frequency Area) mode. Different frequency bands can operate in IFA mode and opening / slot mode respectively. For example, the GPS operating frequency band is designed at the resonant frequency f1 of the IFA mode, and the WiFi frequency band is designed near the resonant frequency f2 of the opening / slot mode. At the feed point D1, a suitable matching circuit is used to simultaneously feed and excite the GPS operating frequency band and the WiFi frequency band to activate both the IFA mode and the opening / slot mode. Thus, compared to traditional antenna devices that share the IFA mode for both GPS and WiFi, the antenna device in this embodiment, which covers both the GPS operating frequency band and the WiFi frequency band, can reduce the matching circuit loss when simultaneously feeding the GPS and WiFi antennas. The matching circuit loss can be reduced by approximately 1 dB, which is equivalent to an improvement in radiation performance of approximately 1 dB, while simultaneously ensuring the antenna performance of both GPS and WiFi.

[0061] This application provides an electronic device including the antenna device described above.

[0062] Figure 6 shows a perspective view of an antenna device. As an example, this antenna device can be a multi-mode antenna system for GPS and WiFi in an electronic device. For instance, if the electronic device is a mobile phone, the antenna device can be located on the top of the phone.

[0063] Referring again to Figure 7, a partial cross-sectional schematic diagram of an electronic device is shown. The antenna radiator (e.g., including the radiator body A1, the first radiator branch B1, and the second radiator branch B2) in the antenna device can be set on the metal outer frame of the electronic device, or on the die-cast middle frame of the electronic device. For example, a slit SL1 is opened in the metal frame or the die-cast middle frame to form the antenna radiator.

[0064] G1 on the antenna radiator can be connected to a reference ground P1 in an electronic device. For example, the reference ground can be a large metal plate or a printed circuit board (PCB) in an electronic device. This application embodiment is not limited to this.

[0065] Optionally, the first radiator branch B1 is located on the first side of the electronic device, and the second radiator branch B2 is located on the second side of the electronic device, with the second side being opposite to the first side; wherein, the first side is one side of the electronic device on which a display screen is provided, or the first side is one side of the electronic device on which a frame is provided.

[0066] For example, the first radiator branch B1 is located on the first side of the electronic device, which is one side of the electronic device on which a display screen is provided; the second radiator branch B2 is located on the second side of the electronic device, which is opposite to the first side. That is, the first radiator branch B1 and the second radiator branch B2 are horizontally separated by slot S1 in the electronic device (i.e., the cross-sectional direction shown in Figure 7).

[0067] For example, the first radiator branch B1 is located on the first side of the electronic device, which is one side of the electronic device with a frame; the second radiator branch B2 is located on the second side of the electronic device, which is opposite to the first side. That is, the first radiator branch B1 and the second radiator branch B2 are horizontally separated by the slot S1 in the electronic device (i.e., from top to bottom in Figure 7).

[0068] It should be noted that the electronic devices in the embodiments of this application can be mobile phones, tablets, laptops, smart wearable devices (such as smartwatches, smart glasses, etc.), or other electronic devices with antenna devices (such as base stations), etc., and the embodiments of this application are not limited thereto. The electronic devices in the embodiments of this application can implement the various embodiments of the above-mentioned antenna devices and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0069] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0070] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0071] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0072] The above describes the preferred embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles described in this application, and these improvements and modifications are also within the protection scope of this application.

Claims

1. An antenna device, comprising: The main body of the radiator, the first radiator branch, and the second radiator branch; The first end of the radiator body is connected to the first end of the first radiator branch and the first end of the second radiator branch, respectively, and there is a gap between the first radiator branch and the second radiator branch; the radiator body or the second radiator branch is provided with a power feeding point, and the second end of the radiator body is provided with a grounding point; The antenna device covers a first frequency band through the radiator body, the first radiator branch, and the second radiator branch, and also covers a second frequency band through the first radiator branch and the second radiator branch; the first frequency band and the second frequency band are different frequency bands.

2. The antenna device according to claim 1, wherein, If the antenna device does not cover the first frequency band, the antenna device also covers the second frequency band through the radiator body, the first radiator branch, and the second radiator branch.

3. The antenna device according to claim 1, wherein, The first radiator branch is arranged along the extension direction of the radiator body, and / or the second radiator branch is arranged along the extension direction of the radiator body.

4. The antenna device according to claim 1, wherein, When the second radiator branch has a feed point, the feed point is located at the first end of the second radiator branch.

5. The antenna device according to claim 1, wherein, The radiator body, the first radiator branch, and the second radiator branch are an integral structure.

6. The antenna device according to any one of claims 1 to 5, wherein, It also includes: at least one connecting part; Each of the connecting portions is located within the interval, and the connecting portion is connected to the first radiator branch and the second radiator branch.

7. The antenna device according to claim 6, wherein, The first connecting portion of the at least one connecting portion is connected to the second end of the first radiator branch and the second end of the second radiator branch; and / or, the second connecting portion of the at least one connecting portion is connected to the middle portion of the first radiator branch and the middle portion of the second radiator branch. The middle part of the first radiator branch is located between the first end and the second end of the first radiator branch, and the middle part of the second radiator branch is located between the first end and the second end of the second radiator branch.

8. The antenna device according to any one of claims 1 to 5, wherein, The first frequency band includes the GPS operating frequency band, and / or the second frequency band includes the WiFi frequency band.

9. An electronic device comprising an antenna device as claimed in any one of claims 1 to 8.

10. The electronic device according to claim 9, wherein, The first radiator branch is located on the first side of the electronic device, and the second radiator branch is located on the second side of the electronic device, with the second side being opposite to the first side.

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