Antenna device and electronic equipment

Abstract

The utility model provides an antenna device and electronic equipment, and belongs to the technical field of antennas. The antenna device comprises a first radiation branch knot and a second radiation branch knot; the first radiation branch knot and the second radiation branch knot are arranged at intervals along a first direction; the first radiation branch comprises a first end and a second end, and the second radiation branch comprises a third end and a fourth end; the first end and the third end are opposite at intervals, the first end is grounded, and the second end, the third end and the fourth end are suspended respectively; the first radiation branch knot is provided with a first upper frame point, the first upper frame point is used for being electrically connected with a first feed circuit, the second radiation branch knot is provided with a second upper frame point, and the second upper frame point is used for being electrically connected with an SAR sensing circuit. According to the antenna device provided by the utility model, the compatibility of the detection branch knot of the SAR and the surrounding antenna is realized, so that the SAR sensor and the surrounding antenna can realize the optimal working performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to antenna technical field, especially relate to a kind of antenna device and electronic equipment. BACKGROUND

[0002] Mobile phone, tablet computer and other electronic equipment usually utilize radiating antenna to emit or receive electromagnetic wave, to realize wireless communication. Generally, electronic equipment is configured with SAR (Specific Absorption Rate) sensor for judging the contact state of user and electronic equipment. If SAR sensor detects that user's head / body is very close to electronic equipment (such as talking on the phone with ear, or directly putting on leg to watch drama), it will inform electronic, reduce the maximum transmit power, control the amount of electromagnetic radiation in the safety range, to protect the user.

[0003] However, a floating antenna is usually needed as SAR detection component in related technology, which will interfere with surrounding antennas, resulting in that SAR sensor and surrounding antennas cannot achieve optimal performance. SUMMARY

[0004] The utility model provides a kind of antenna device and electronic equipment, can solve the floating antenna of SAR sensor and other antennas in electronic equipment will produce mutual interference, resulting in that SAR sensor and surrounding antennas cannot achieve optimal performance problem.

[0005] The technical solution is as follows:

[0006] On the one hand, an antenna device is provided, which comprises: a first radiating branch and a second radiating branch.

[0007] The first radiating branch and the second radiating branch are arranged along a first direction.

[0008] The first radiating branch comprises a first end and a second end, and the second radiating branch comprises a third end and a fourth end. The first end and the third end are oppositely spaced, and the first end is grounded. The second end, the third end and the fourth end are respectively suspended.

[0009] The first radiating branch is provided with a first upper frame point for electrically connecting a first feeding circuit. The second radiating branch is provided with a second upper frame point for electrically connecting a SAR sensing circuit.

[0010] In some embodiments, the first feeding circuit includes at least one of a GPS feeding circuit and a WiFi 2.4G feeding circuit.

[0011] In some embodiments, the antenna device comprises a first ground return bar, and the first end is grounded through the first ground return bar.

[0012] In some embodiments, a dimension L1 of the first radiating branch along the first direction ranges from 15mm to 25mm.

[0013] A dimension L2 of the second radiating branch along the first direction ranges from 6mm to 8mm.

[0014] In some embodiments, a distance between the first upper frame point and the second end is L3, wherein a value range of L3 / L1 is 0.3-0.4.

[0015] And / or,

[0016] A distance between the second upper frame point and the fourth end is L4, wherein a value range of L4 / L2 is 0.52-0.62.

[0017] In some embodiments, the first radiating branch is further provided with a third upper frame point, the third upper frame point is close to the second end, and the third upper frame point is used for electrically connecting an antenna matching circuit.

[0018] In some embodiments, the antenna device further comprises a third radiating branch, the third radiating branch is arranged apart from the second radiating branch along the first direction and located on a side of the second radiating branch away from the first radiating branch.

[0019] The third radiating branch is provided with a fourth upper frame point, and the fourth upper frame point is used for electrically connecting a second feeding circuit.

[0020] In some embodiments, the antenna device further comprises a fourth radiating branch, the fourth radiating branch is arranged apart from the first radiating branch along the first direction and located on a side of the first radiating branch away from the second radiating branch.

[0021] The fourth radiating branch is provided with a fifth upper frame point and a sixth upper frame point, the fifth upper frame point is located on a side of the sixth upper frame point facing the first radiating branch, the fifth upper frame point is used for electrically connecting a third feeding circuit, and the sixth upper frame point is used for electrically connecting a fourth feeding circuit.

[0022] In another aspect, an electronic device is provided, and the antenna device comprises the antenna device.

[0023] In some embodiments, the electronic device further comprises an MDA middle frame, the MDA middle frame has a top frame, an extension direction of the top frame is coincident with the first direction, and the first radiating branch and the second radiating branch are respectively located in the top frame.

[0024] The technical scheme provided by the utility model has at least the beneficial effects of:

[0025] The antenna device of the utility model, adopting the second radiation branch suspended arrangement, as the SAR detection branch, can meet the SAR detection demand of the electronic equipment, and the end part close to the second radiation branch in the first radiation branch close to the second radiation branch is grounded, which is beneficial to reducing the coupling interference of the second radiation branch to the first radiation branch, the first radiation branch has better radiation performance, so that the compatibility of the SAR detection branch and the surrounding antenna is realized, and the SAR sensor and the surrounding antenna can realize the best working performance. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0027] Figure 1 It is the structural schematic diagram of the antenna device provided by the utility model embodiment;

[0028] Figure 2 It is the structural schematic diagram of the antenna device provided by another utility model embodiment;

[0029] Figure 3 It is the size schematic diagram of the antenna device provided by the utility model embodiment;

[0030] Figure 4 It is the structural schematic diagram of the antenna device provided by another utility model embodiment;

[0031] Figure 5 It is the structural schematic diagram of the antenna device provided by another utility model embodiment;

[0032] Figure 6 It is the structural schematic diagram of the electronic equipment provided by the utility model embodiment;

[0033] Figure 7 It is the radiation efficiency test of the antenna device provided by the utility model embodiment Figure 1 ;

[0034] Figure 8 It is the radiation efficiency test of the antenna device provided by the utility model embodiment Figure 2 .

[0035] The reference signs in the drawings respectively represent:

[0036] 0a, first direction; 0b, second direction;

[0037] 1, first radiating branch;

[0038] 101, first end; 102, second end;

[0039] 11, first upper frame point; 12, third upper frame point;

[0040] 2, second radiating branch;

[0041] 201, third end; 202, fourth end;

[0042] 21, second upper frame point;

[0043] 3, first ground return stub;

[0044] 4, third radiating branch;

[0045] 41, fourth upper frame point;

[0046] 5, fourth radiating branch;

[0047] 51, fifth upper frame point; 52, sixth upper frame point;

[0048] 6, second ground return stub;

[0049] 7, third ground return stub;

[0050] 8, fifth radiating branch;

[0051] 01, first feed circuit; 02, SAR sensing circuit; 03, antenna matching circuit; 04, second feed circuit; 05, third feed circuit; 06, fourth feed circuit;

[0052] 100, MDA middle frame; 200, floor;

[0053] 1001, top bezel; 1002, side bezel. DETAILED DESCRIPTION

[0054] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description herein relates to the drawings, when made with reference to them and identical numbers in different drawings represent the same or similar elements. The following exemplary embodiments described in the following detailed description are not meant to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0055] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. Figure 1

[0056] It should be understood that in the present application, "electrical connection" can be understood as physical contact and electrical conduction of components; it can also be understood as a form of connection between different components in a circuit structure through a physical circuit such as a copper foil or a wire on a printed circuit board (PCB) that can transmit electrical signals. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to a connection relationship that defines the structure of the product. "Connection" and "connected" can refer to a mechanical connection relationship or a physical connection relationship, that is, A and B are connected or A and B are connected, which means that there is a fastening member (such as a screw, bolt, rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0057] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0058] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0059] In one aspect, in combination with Figure 1 and Figure 2 As shown in the drawings, the present embodiment provides an antenna device, which comprises: a first radiating branch 1 and a second radiating branch 2.

[0060] The first radiating branch 1 and the second radiating branch 2 are arranged at intervals along a first direction 0a.

[0061] The first radiating branch 1 comprises a first end 101 and a second end 102, and the second radiating branch 2 comprises a third end 201 and a fourth end 202; the first end 101 and the third end 201 are oppositely arranged at intervals, and the first end 101 is grounded, and the second end 102, the third end 201 and the fourth end 202 are respectively suspended.

[0062] ​The first radiating branch 1 is provided with a first upper frame point 11 for electrically connecting the first feeding circuit 01, and the second radiating branch 2 is provided with a second upper frame point 21 for electrically connecting the SAR sensing circuit 02.

[0063] The antenna device of the embodiment can meet the SAR detection requirement of the electronic device by using the second radiating branch 2 as the SAR detection branch, and the end of the first radiating branch 1 close to the second radiating branch 2 is grounded, which is beneficial to reducing the coupling interference of the second radiating branch 2 on the first radiating branch 1, and the first radiating branch 1 has good radiation performance, thereby realizing the compatibility of the SAR detection branch and the surrounding antenna, and enabling the SAR sensor and the surrounding antenna to achieve the best working performance.

[0064] In some possible implementation manners, the SAR sensing circuit 02 is configured to receive electrical signals of the second radiating branch 2, and perform amplification, filtering, digital-to-analog conversion and the like on the electrical signals, and calculate the SAR value through a theoretical model in combination with factors such as the antenna characteristics, the transmission power of the mobile phone and the electromagnetic characteristics of the human tissue. It should be noted that the SAR test in the embodiment can be performed by using any one of the methods widely used in the prior art, and the embodiment does not limit the SAR test.

[0065] In some embodiments, the first feeding circuit 01 includes at least one of a GPS feeding circuit and a WiFi 2.4G feeding circuit. Thus, the first radiating branch 1 can serve as a GPS antenna and / or a WiFi 2.4G antenna.

[0066] For example, the first feeding circuit 01 includes a GPS feeding circuit, or the first feeding circuit 01 includes a WiFi 2.4G feeding circuit, or the first feeding circuit 01 includes both the GPS feeding circuit and the WiFi 2.4G feeding circuit.

[0067] The GPS (Global Positioning System) feeding circuit can be configured to receive radio frequency signals transmitted by the first radiating branch 1 and relative to GPS satellite signals, so as to realize the GPS satellite positioning and navigation function of the electronic device.

[0068] The WiFi 2.4G feeding circuit can realize the wireless WiFi (Wireless Fidelity) communication of the electronic device in the 2.4 GHz frequency band.

[0069] In some possible implementation manners, the first radiating branch 1 can be used as a GPS antenna and / or a WiFi 2.4G antenna. Figure 5As shown, the first feeding circuit 01 has a feed source and at least one capacitive-inductive element. Exemplarily, the feed source is electrically connected to one end of the capacitive element and one end of the inductive element respectively, the other end of the capacitive element is electrically connected to the first upper frame point 11, and the other end of the inductive element is electrically grounded.

[0070] In combination Figure 1 As shown, in some embodiments, the antenna device comprises a first ground return position 3, and the first end 101 is grounded through the first ground return position 3.

[0071] In this embodiment, the first end 101 of the first radiation branch 1 can be grounded through the first ground return position 3, which is simple in structure and has better grounding effect of the first radiation branch 1. When the first radiation branch 1 is located in the middle frame structure of the electronic device, it is beneficial to improve the strength of the middle frame structure of the electronic device.

[0072] In combination Figure 3 As shown, in some embodiments, the size L1 of the first radiation branch 1 along the first direction 0a is in the range of 15-25mm; and the size L2 of the second radiation branch 2 along the first direction 0a is in the range of 6-8mm.

[0073] Through the above arrangement, when the sizes of the first radiation branch 1 and the second radiation branch 2 along the first direction 0a meet the above value range, the first radiation branch 1 realizes the coverage of the GPS frequency band and the WiFi 2.4G frequency band, and the second radiation branch 2 can meet the working requirements of the SAR sensor.

[0074] In some possible implementations, the size L1 of the first radiation branch 1 along the first direction 0a is, for example, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, etc. Alternatively, the size L1 is 20mm.

[0075] In another possible implementation, the size L2 of the second radiation branch 2 along the first direction 0a is, for example, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, etc. Alternatively, the size L2 is 7mm.

[0076] In combination Figure 3 As shown, in some embodiments, the distance between the first upper frame point 11 and the second end 102 is L3, wherein the value range of L3 / L1 is 0.3-0.4. Thus, the first radiation branch 1 can realize the coverage of the GPS frequency band and the WiFi 2.4G frequency band.

[0077] In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm.

[0078] In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm.

[0079] In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm. Figure 3 In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm.

[0080] In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm.

[0081] In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm.

[0082] In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm. Figure 1 In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm. Figure 2 In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm.

[0083] In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm.

[0084] In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm. Figure 4 In some possible implementation manners, the interval L3 between the first upper frame point 11 and the second end 102 is 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, or the like. Optionally, the interval L3 is 7 mm.

[0085] Through the above arrangement, the third radiation branch 4 is located on the side of the second radiation branch 2 away from the first radiation branch 1, and when the third radiation branch 4 is working, the third radiation branch 4 can excite a coupling current on the first radiation branch 1, so that the first radiation branch 1 acts as a parasitic antenna of the third radiation branch 4, thereby facilitating to improve the utilization rate of the first radiation branch 1 and improve the working performance of the antenna assembly.

[0086] In combination with Figure 4 It is shown that, in some embodiments, the antenna device further comprises a fourth radiation branch 5, which is arranged in the first direction 0a and spaced from the first radiation branch 1, and located on the side of the first radiation branch 1 away from the second radiation branch 2.

[0087] The fourth radiation branch 5 is provided with a fifth upper corner point 51 and a sixth upper corner point 52, the fifth upper corner point 51 is located on the side of the sixth upper corner point 52 away from the first radiation branch 1, the fifth upper corner point 51 is used for electrically connecting the third feeding circuit 05, and the sixth upper corner point 52 is used for electrically connecting the fourth feeding circuit 06.

[0088] Through the above arrangement, the antenna device can also realize wireless communication of other frequency bands by using the fourth radiation branch 5, thereby improving the wireless communication capability of the electronic device.

[0089] Exemplarily, the fourth radiation branch 5 is used to realize wireless communication of the WiFi6e frequency band and the N78 frequency band.

[0090] Figure 7 And Figure 8 are respectively radiation efficiency test diagrams of the antenna device provided by the embodiments of the present application, from Figure 7 It can be seen that the antenna device has a relatively high radiation efficiency under the N78, WIFI5G, GPS L1, WIFI2.4G, GPS L5 frequency bands. From Figure 8 It can be seen that the antenna device can realize a relatively high radiation efficiency under the four tuning states of RF1-RF4, and is not interfered by the coupling of the SAR detection branch.

[0091] On the other hand, in combination with Figure 6 It is shown that the present application provides an electronic device, and the antenna device comprises the antenna device of the present application.

[0092] The electronic device of the present application adopts the antenna device of the present application, has all the beneficial technical effects of the present application, can realize the compatibility of the SAR detection branch and the surrounding antenna, and can realize the best working performance of the SAR sensor and the surrounding antenna.

[0093] The electronic device provided by the embodiment. Specifically, the electronic device can be any of various types of computer system devices that are mobile or portable and perform wireless communication. Specifically, the electronic device can be a mobile phone or a smart phone (for example, an iPhone TM-based phone, an Android TM-based phone), a portable game device (for example, Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone TM), a laptop computer, a PDA, a portable Internet device, a music player, and a data storage device, other handheld devices, and the like, such as a headset, and the electronic device can also be other wearable devices that need to be charged (for example, a head-mounted device (HMD) such as an electronic bracelet, an electronic necklace, an electronic device, or a smart watch).

[0094] The electronic device can also be any of a plurality of electronic devices including, but not limited to, a cellular phone, a smart phone, other wireless communication devices, a personal digital assistant, an audio player, other media players, a music recorder, a video recorder, other media recorders, a radio, a medical device, a vehicle transportation instrument, a calculator, a programmable remote controller, a pager, a laptop computer, a desktop computer, a printer, a netbook, a personal digital assistant (PDA), a portable multimedia player (PMP), a motion picture expert group (MPEG-1 or MPEGG-2) audio layer 3 (MP3) player, a portable medical device, and a digital camera and combinations thereof.

[0095] In some cases, the electronic device can perform a plurality of functions (for example, playing music, displaying video, storing pictures, and receiving and sending telephone calls). If necessary, the electronic device can be a device such as a cellular phone, a media player, other handheld devices, a wristwatch device, a pendant device, a handset device, or other compact portable devices.

[0096] In combination Figure 6 As shown, in some embodiments, the electronic device further includes an MDA middle frame 100, the MDA middle frame 100 has a top frame 1001, the extension direction of the top frame 1001 coincides with the first direction 0a, and the first radiation branch 1 and the second radiation branch 2 are located in the top frame 1001 respectively.

[0097] Through the above arrangement, the first radiation branch 1 and the second radiation branch 2 can be arranged in the top frame 1001 of the electronic device, with a better clearance environment, and when making or receiving a call, the second radiation branch 2 is closer to the human head, so that the SAR value of the human head area can be measured, and the detection result is more accurate and the reliability is higher.

[0098] Exemplarily, the MDA middle frame 100, also called a plastic-encased middle frame, has a metal structure as a support mechanism, and the outer ring is wrapped with plastic material to increase the flexibility and buffering effect of the middle frame, and also to improve the safety and comfort of use.

[0099] In some possible implementation manners, with reference to Figure 6 As shown in the figure, the electronic device further includes a middle plate 200, and the MDA middle frame 100 is arranged at the circumferential edge of the middle plate 200.

[0100] The top frame 1001 has a second ground return position 6 and a third ground return position 7 at two ends along the first direction 0a, respectively, the second ground return position 6 is located at the end of the fourth radiation branch 5 away from the first radiation branch 1, and is connected with the fourth radiation branch 5 and the middle plate 200 respectively, and the third ground return position 7 is located at the end of the third radiation branch 4 away from the second radiation branch 2, and is connected with the third radiation branch 4 and the middle plate 200 respectively.

[0101] The second ground return position 6 and the third ground return position 7 can respectively realize the ground return and structural fixation of the fourth radiation branch 5 and the third radiation branch 4.

[0102] In addition, the first ground return position 3 is connected with the first radiation branch 1 and the middle plate 200 respectively.

[0103] In other possible implementation manners, the MDA middle frame 100 further includes two side frames 1002, the direction of the side frame 1002 is parallel to the second direction 0b, and at least one fifth radiation branch 8 is arranged on the side frame 1002, the fifth radiation branch 8 can make full use of the side area of the MDA middle frame 100, and further improve the wireless communication performance of the electronic device.

[0104] It should be noted that, in the present application, unless otherwise specified and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0105] In the description of the present specification, the description referring to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific feature, structure, material, or characteristic being described in connection with the embodiment or example is included in at least one embodiment or example of the present application.

[0106] The above only describes the embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. An antenna device, characterized by The antenna device comprises a first radiating branch (1) and a second radiating branch (2); The first radiating branch (1) and the second radiating branch (2) are arranged in a first direction (0a) with a spacing; The first radiating branch (1) comprises a first end (101) and a second end (102), and the second radiating branch (2) comprises a third end (201) and a fourth end (202); the first end (101) and the third end (201) are oppositely spaced, and the first end (101) is grounded, and the second end (102), the third end (201) and the fourth end (202) are respectively suspended; The first radiating branch (1) is provided with a first upper frame point (11) for electrically connecting a first feeding circuit (01), and the second radiating branch (2) is provided with a second upper frame point (21) for electrically connecting a SAR sensing circuit (02).

2. The antenna device of claim 1, wherein, The first feeding circuit (01) comprises at least one of a GPS feeding circuit and a WiFi 2.4G feeding circuit.

3. The antenna device of claim 1, wherein, The antenna device comprises a first ground return muscle position (3), and the first end (101) is grounded through the first ground return muscle position (3).

4. The antenna device of claim 1, wherein, The size L1 of the first radiating branch (1) in the first direction (0a) ranges from 15mm to 25mm; The size L2 of the second radiating branch (2) in the first direction (0a) ranges from 6mm to 8mm.

5. The antenna device of claim 4, wherein, The distance between the first upper frame point (11) and the second end (102) is L3, wherein the value range of L3 / L1 is 0.3-0.4; And / or, The distance between the second upper frame point (21) and the fourth end (202) is L4, wherein the value range of L4 / L2 is 0.52-0.

62.

6. The antenna device according to any one of claims 1 to 5, characterized in that, The first radiating branch (1) is further provided with a third upper frame point (12) close to the second end (102), and the third upper frame point (12) is used for electrically connecting an antenna matching circuit (03).

7. The antenna device according to any one of claims 1 to 5, characterized in that, The antenna device further comprises a third radiating branch (4) arranged in the first direction (0a) with a spacing from the second radiating branch (2) and located on a side of the second radiating branch (2) away from the first radiating branch (1); The third radiating branch (4) is provided with a fourth upper frame point (41) for electrically connecting a second feeding circuit (04).

8. The antenna device of claim 7, wherein, The antenna device further comprises a fourth radiating branch (5) arranged in the first direction (0a) with a spacing from the first radiating branch (1) and located on a side of the first radiating branch (1) away from the second radiating branch (2); The fourth radiation branch (5) is provided with a fifth upper frame point (51) and a sixth upper frame point (52), the fifth upper frame point (51) is located on the side of the sixth upper frame point (52) facing the first radiation branch (1), the fifth upper frame point (51) is used for electrically connecting a third feeding circuit (05), and the sixth upper frame point (52) is used for electrically connecting a fourth feeding circuit (06).

9. An electronic device, comprising: The antenna device comprises the antenna device of any one of claims 1 to 8.

10. The electronic device of claim 9, wherein, The electronic device further comprises an MDA middle frame (100), the MDA middle frame (100) has a top frame (1001), the extension direction of the top frame (1001) coincides with the first direction (0a), and the first radiation branch (1) and the second radiation branch (2) are located in the top frame (1001) respectively.

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