Antenna assembly and electronic device

Abstract

This application provides an antenna assembly and electronic device, relating to the field of antenna technology. The antenna assembly includes: a first radiating stub and a second radiating stub; the first radiating stub includes a first end and a second end, the second radiating stub includes a third end and a fourth end, a gap structure is provided between the first end and the third end, and the second end and the fourth end are respectively grounded; the first radiating stub has a first upper frame point, a second upper frame point, and a third upper frame point, the third upper frame point being arranged close to the first end, the second upper frame point being located on the side of the third upper frame point facing the second end, and the first upper frame point being located on the side of the second upper frame point facing the second end; the second radiating stub has a fourth upper frame point, the fourth upper frame point being arranged close to the third end. The antenna assembly of this application, with its second radiating stub, can meet the operational requirements of parasitic antennas and / or metamaterial antennas, which is beneficial for further improving the performance of the antenna assembly.

Description

Technical Field

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

[0002] Currently, mobile phones, tablets, and other electronic devices have become indispensable tools in people's daily lives. These electronic devices typically require communication antennas to enable wireless communication.

[0003] In related technologies, electronic devices have increasingly narrow bezels, resulting in smaller antenna clearance. At the same time, the number of antenna gaps cannot be increased. All of these factors greatly reduce antenna performance and have an increasingly significant impact on the communication capabilities of mobile phones. Summary of the Invention

[0004] This application provides an antenna assembly and electronic device that can solve the problem of reduced antenna performance caused by the number of antenna clearances and gaps.

[0005] The technical solution is as follows:

[0006] On one hand, an antenna assembly is provided, the antenna assembly comprising: a first radiating stub and a second radiating stub;

[0007] The first radiating branch includes a first end and a second end, the second radiating branch includes a third end and a fourth end, a gap structure is provided between the first end and the third end, and the second end and the fourth end are respectively grounded;

[0008] The first radiating branch has a first upper frame point, a second upper frame point, and a third upper frame point. The third upper frame point is arranged close to the first end, the second upper frame point is located on the side of the third upper frame point facing the second end, and the first upper frame point is located on the side of the second upper frame point facing the second end.

[0009] The second radiating branch has a fourth upper frame point, which is located close to the third end.

[0010] In some embodiments, the antenna assembly further includes a feeding structure, a first tuning structure, and a second tuning structure;

[0011] The power supply structure is electrically connected to the first upper frame point, the first tuning structure is electrically connected to the second upper frame point, and the second tuning structure is electrically connected to the third upper frame point and the fourth upper frame point, respectively.

[0012] In some embodiments, the power supply structure includes a feed source, a first capacitor element, a first inductor element, a second capacitor element, and a second inductor element;

[0013] The feed source is electrically connected to one end of the first capacitor element, the other end of the first capacitor element is electrically connected to one end of the first inductor element, the other end of the first inductor element is electrically connected to one end of the second capacitor element, the other end of the second capacitor element is electrically connected to the first upper frame point and one end of the second inductor element respectively, and the other end of the second inductor element is grounded.

[0014] In some embodiments, the first tuning structure includes at least one third capacitor element, at least one third inductor element, and a first switching element;

[0015] One end of the at least one third capacitor element and one end of the at least one third inductor element are electrically connected to the second upper frame point, and the other ends of the at least one third capacitor element and the at least one third inductor element are grounded through the first switching element.

[0016] In some embodiments, the first switching element includes at least two first switching units, one end of each first switching unit being electrically connected to a third capacitor element or a third inductor element, and the other end of the first switching unit being grounded.

[0017] In some embodiments, the second tuning structure includes at least one fourth capacitor element and a second switching element;

[0018] One end of the at least one fourth capacitor element is electrically connected to the third upper frame point, and the other end of the fourth capacitor element is electrically connected to the fourth upper frame point through the second switching element.

[0019] In some embodiments, the second tuning structure further includes a plurality of fourth inductor elements;

[0020] The second switching element includes a radio frequency signal common terminal, multiple switch peripheral ports, and multiple second switching units; each of the switch peripheral ports is electrically connected to the radio frequency signal common terminal through a second switching unit;

[0021] At least one of the switch peripheral ports is electrically connected to the at least one fourth capacitor element, and the remaining switch peripheral ports are grounded through the fourth inductor element.

[0022] In some embodiments, the length of the first radiating branch is L1, the length of the second radiating branch is L2, the distance between the first top frame point and the first end is L3, the distance between the second top frame point and the first end is L4, the distance between the third top frame point and the first end is L5, and the distance between the fourth top frame point and the second end is L6.

[0023] Among them, L1>L2>L3>L4>L5=L6.

[0024] In some embodiments, the antenna assembly is used for transmitting and receiving wireless signals in the LB band and the MHB band.

[0025] On the other hand, an electronic device is provided, which includes the antenna assembly described in this application.

[0026] The beneficial effects of the technical solution provided in this application include at least the following:

[0027] The antenna assembly of this application has a head-to-head arrangement of the first radiating stub and the second radiating stub, and a gap structure between the first radiating stub and the second radiating stub. This antenna assembly can realize a single-gap arrangement scheme for the antenna, which is beneficial to ensuring the appearance integrity of the electronic device.

[0028] The first radiating stub has a first upper frame point, a second upper frame point, and a third upper frame point, while the second radiating stub has a fourth upper frame point. The first upper frame point is located between the two ends of the first radiating stub, which can meet the feeding connection requirements of the antenna assembly in the LB and MHB frequency bands. The second, third, and fourth upper frame points can all be used for antenna tuning when the antenna assembly is working, thereby improving the operating bandwidth and radiation performance of the antenna assembly. Moreover, the third and fourth upper frame points are located at the two ends of the slotted structure, which allows the second radiating stub to meet the operating requirements of parasitic antennas and / or metamaterial antennas, which is conducive to further improving the operating performance of the antenna assembly. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the antenna assembly provided in an embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the structure of an antenna assembly provided in another embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the power supply structure provided in the embodiments of this application;

[0033] Figure 4 This is a schematic diagram of the first tuning structure provided in the embodiments of this application;

[0034] Figure 5This is a schematic diagram of the second tuning structure provided in the embodiments of this application;

[0035] Figure 6 This is a schematic diagram of the dimensions of the antenna assembly provided in the embodiments of this application;

[0036] Figure 7 This is a return loss test curve of the antenna assembly provided in the embodiments of this application;

[0037] Figure 8 This is a test curve of the working efficiency of the antenna assembly provided in the embodiment of this application in the LB band;

[0038] Figure 9 This is a test curve of the working efficiency of the antenna assembly provided in the embodiment of this application in the MHB band;

[0039] Figure 10 This is a comparison chart of the working efficiency test results of the antenna components and related technologies provided in the embodiments of this application in the LB band;

[0040] Figure 11 This is a comparison chart of the working efficiency test results of the antenna components and related technologies provided in the embodiments of this application in the MHB band;

[0041] Figure 12 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application.

[0042] The reference numerals in the figure are respectively:

[0043] 1. First radiating branch;

[0044] 101. First end; 102. Second end;

[0045] 11. First top frame point; 12. Second top frame point; 13. Third top frame point;

[0046] 2. Second radiating branch;

[0047] 201. Third end; 202. Fourth end;

[0048] 21. The fourth top frame point;

[0049] 3. Jointed structure;

[0050] 4. Power supply structure;

[0051] 41. Feed source; 42. First capacitor element; 43. First inductor element; 44. Second capacitor element; 45. Second inductor element;

[0052] 5. First tuning structure;

[0053] 51. Third capacitor element; 52. Third inductor element; 53. First switching element; 531. First switching unit;

[0054] 6. Second tuning structure;

[0055] 61. Fourth capacitor element; 62. Second switching element; 621. Radio frequency signal common terminal; 622. Switch peripheral port; 623. Second switching unit; 63. Fourth inductor element;

[0056] 100. Mid-frame module. Detailed Implementation

[0057] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0058] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0059] It should be understood that in this application, "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB). "Communication connection" can refer to the transmission of electrical signals, including wireless communication connections and wired communication connections. Wireless communication connections do not require a physical medium and are not a connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical or physical connection relationship, that is, A and B being connected or connected can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or that A and B are in contact with each other and are difficult to separate.

[0060] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0061] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0062] On the one hand, combined with Figure 1 As shown, this embodiment provides an antenna assembly, which includes a first radiating stub 1 and a second radiating stub 2.

[0063] The first radiating branch 1 includes a first end 101 and a second end 102, and the second radiating branch 2 includes a third end 201 and a fourth end 202. A gap structure 3 is provided between the first end 101 and the third end 201, and the second end 102 and the fourth end 202 are respectively grounded.

[0064] The first radial branch 1 is provided with a first upper frame point 11, a second upper frame point 12 and a third upper frame point 13. The third upper frame point 13 is arranged close to the first end 101. The second upper frame point 12 is located on the side of the third upper frame point 13 facing the second end 102. The first upper frame point 11 is located on the side of the second upper frame point 12 facing the second end 102.

[0065] The second radiating branch 2 is provided with a fourth upper frame point 21, which is arranged near the third end 201.

[0066] In this embodiment, the antenna assembly has a head-to-head arrangement of the first radiating stub 1 and the second radiating stub 2, with a gap structure 3 between them. This antenna assembly can achieve a single-gap arrangement of the antenna, which helps to ensure the appearance integrity of the electronic device.

[0067] The first radiating stub 1 has a first upper frame point 11, a second upper frame point 12, and a third upper frame point 13, and the second radiating stub 2 has a fourth upper frame point 21. The first upper frame point 11 is located between the two ends of the first radiating stub 1, which can meet the feeding connection requirements of the antenna assembly in the LB (Low Band) and MHB (Medium High Band) frequency bands. The second upper frame point 12, the third upper frame point 13, and the fourth upper frame point 21 can all be used for antenna tuning when the antenna assembly is working, thereby improving the working bandwidth and radiation performance of the antenna assembly.

[0068] The frequency range of the LB band is between 30MHz and 1GHz, including but not limited to B28 (700MHz), B5 (850MHz) and B8 (900MHz).

[0069] The MHB band is between 1 GHz and 3 GHz, including but not limited to B3 (1800 MHz), B1 (2100 MHz), B40 (2300 MHz) and B41 (2500 MHz).

[0070] Moreover, the third upper frame point 13 and the fourth upper frame point 21 are located at the two ends of the slit structure 3, respectively, so that the second radiating stub 2 can meet the working requirements of the parasitic antenna and / or metamaterial antenna, which is conducive to further improving the working performance of the antenna assembly.

[0071] Parasitic antennas enhance the radiation characteristics of the main antenna (e.g., the first radiating stub 1) through parasitic elements (e.g., the second radiating stub 2). The parasitic element is not directly connected to the power supply, but interacts with the main antenna through electromagnetic coupling, thereby affecting the antenna's radiation mode and gain. The parasitic element can effectively increase the antenna's gain, enabling it to radiate a stronger signal in a specific direction. By rationally designing the position and shape of the parasitic element, better directivity can be achieved, enhancing the directional transmission capability of the signal. Parasitic antenna designs can achieve a wider operating bandwidth, adapting to various communication needs.

[0072] Metamaterial antennas (or meta antennas) are antennas designed using the properties of metamaterials. They possess unique electromagnetic characteristics, exhibiting properties not found in natural materials within specific frequency ranges. Metamaterial antennas can achieve high-efficiency radiation performance in a small size, making them suitable for space-constrained applications, such as those requiring narrower bezels in electronic devices. By designing metamaterial structures, wider operating bandwidths can be achieved to meet diverse communication needs. Furthermore, antenna gain can be increased, enhancing signal transmission capabilities and making them suitable for long-distance communication. In addition, metamaterial antennas can achieve better directivity, reduce interference, and improve signal quality. They can also be designed as multi-functional antennas, such as simultaneously supporting communication across multiple frequency bands.

[0073] In this embodiment, when the third upper frame point 13 and the fourth upper frame point 21 are connected by a capacitive element, the antenna assembly can be converted into a C-Meta antenna, which can leverage the many advantages of the meta antenna. When the third upper frame point 13 and the fourth upper frame point 21 are not connected, the antenna assembly can be converted into a parasitic antenna, which can leverage the many advantages of the parasitic antenna.

[0074] In some embodiments, the first upper frame point 11 is used for the power supply connection of the antenna assembly, the second upper frame point 12 is used for antenna tuning when the antenna is operating in the LB band, and the third upper frame point 13 and the fourth upper frame point 21 are used for antenna tuning when the antenna assembly is operating in the MHB band.

[0075] Combination Figure 2As shown, in some embodiments, the antenna assembly further includes a feeding structure 4, a first tuning structure 5, and a second tuning structure 6.

[0076] The power supply structure 4 is electrically connected to the first upper frame point 11, the first tuning structure 5 is electrically connected to the second upper frame point 12, and the second tuning structure 6 is electrically connected to the third upper frame point 13 and the fourth upper frame point 21, respectively.

[0077] With the above arrangement, the feeding structure 4 can feed the antenna assembly through the first upper frame point 11, the first tuning structure 5 can tune the antenna when the antenna assembly is working through the second upper frame point 12, and the second tuning structure 6 can tune the antenna when the antenna assembly is working through the third upper frame point 13 and the fourth upper frame point 21.

[0078] In some possible implementations, the feeding structure 4 feeds the antenna assembly in the LB and MHB bands through the first upper frame point 11.

[0079] The first tuning structure 5 performs antenna tuning via the second upper frame point 12 when the antenna assembly is operating in the LB band.

[0080] The second tuning structure 6 performs antenna tuning when the antenna assembly is operating in the MHB band via the third upper frame point 13 and the fourth upper frame point 21.

[0081] Combination Figure 3 As shown, in some embodiments, the power supply structure 4 includes a feed source 41, a first capacitor element 42, a first inductor element 43, a second capacitor element 44, and a second inductor element 45.

[0082] Feed 41 is electrically connected to one end of the first capacitor element 42, the other end of the first capacitor element 42 is electrically connected to one end of the first inductor element 43, the other end of the first inductor element 43 is electrically connected to one end of the second capacitor element 44, the other end of the second capacitor element 44 is electrically connected to the first upper frame point 11 and one end of the second inductor element 45 respectively, and the other end of the second inductor element 45 is grounded.

[0083] With the above arrangement, the power supply structure 4 can meet the power supply requirements of the LB band and the MHB band.

[0084] Combination Figure 4 As shown, in some embodiments, the first tuning structure 5 includes at least one third capacitor element 51, at least one third inductor element 52, and a first switching element 53.

[0085] One end of at least one third capacitor element 51 and one end of at least one third inductor element 52 are electrically connected to the second upper frame point 12, and the other ends of at least one third capacitor element 51 and at least one third inductor element 52 are grounded through the first switching element 53.

[0086] With the above arrangement, the first switching element 53 can control the second upper frame point 12 to be grounded through one or more of the third capacitor element 51 or the third inductor element 52 according to the control signal, so as to adapt to different frequency band requirements, thereby the first tuning structure 5 can realize antenna tuning in the LB band.

[0087] In some embodiments, the number of third capacitor elements 51 and third inductor elements 52 can be determined according to the number of tuning states required by the antenna assembly. For example, the total number of third capacitor elements 51 and third inductor elements 52 can be equal to the required number of tuning states, or the total number of third capacitor elements 51 and third inductor elements 52 can be less than the required number of tuning states, but any excess tuning states can be generated by multiple third capacitor elements 51 and / or third inductor elements 52 coupled in parallel.

[0088] Combination Figure 4 As shown, in some embodiments, the first switching element 53 includes at least two first switching units 531, one end of each first switching unit 531 is electrically connected to a third capacitor element 51 or a third inductor element 52, and the other end of the first switching unit 531 is grounded.

[0089] In this embodiment, the first switching element 53 has at least two first switching units 531, thereby forming an N×SPST (Single Pole Single Throw) switching element. Each first switching unit 531 can be independently controlled to open and close. According to the control signal, the second upper frame point 12 can be grounded through the target element in the third capacitor element 51 or the third inductor element 52 to meet the requirements of the target frequency band.

[0090] In some embodiments, the number of first switching units 531 is equal to the total number of third capacitor elements 51 and third inductor elements 52, and each third capacitor element 51 and each third inductor element 52 corresponds to one first switching unit 531.

[0091] Combination Figure 5 As shown, in some embodiments, the second tuning structure 6 includes at least one fourth capacitor element 61 and a second switching element 62.

[0092] At least one end of a fourth capacitor element 61 is electrically connected to the third upper frame point 13, and the other end of the fourth capacitor element 61 is electrically connected to the fourth upper frame point 21 through the second switching element 62.

[0093] With the above arrangement, the second tuning structure 6 can use the second switching element 62 to control the connection of the third upper frame point 13 and the fourth upper frame point 21 via the fourth capacitor element 61, thereby forming a C-Meta antenna with the advantages of a meta antenna, which is beneficial to improving the working performance of the antenna assembly. The second tuning structure 6 can also use the second switching element 62 to control the disconnection of the third upper frame point 13 and the fourth upper frame point 21, thereby forming a parasitic antenna with the first radiating branch 1 as the main radiating element and the second radiating branch 2 as the parasitic element, which has the advantages of a parasitic antenna and is beneficial to improving the working performance of the antenna assembly.

[0094] Using the second tuning structure 6 described above, the antenna assembly can switch between the C-Meta antenna and the parasitic antenna according to different frequency band requirements, thereby achieving antenna tuning in the MHB band.

[0095] In some possible implementations, the number of fourth capacitor elements 61 is at least two, and the capacitance values ​​of different fourth capacitor elements 61 are different. When different fourth capacitor elements 61 are connected between the third upper frame point 13 and the fourth upper frame point 21, the performance of the C-Meta antenna formed by the first radiating stub 1 and the second radiating stub 2 is different, which can meet the performance requirements under different frequency bands.

[0096] Combination Figure 5 As shown, in some embodiments, the second tuning structure 6 further includes a plurality of fourth inductor elements 63.

[0097] The second switching element 62 includes a radio frequency signal common terminal 621, multiple switch peripheral ports 622, and multiple second switching units 623; each switch peripheral port 622 is electrically connected to the radio frequency signal common terminal 621 through a second switching unit 623.

[0098] One of the switch peripheral ports 622 is electrically connected to the fourth capacitor element 61, and the other switch peripheral ports 622 are grounded through the fourth inductor element 63.

[0099] With the above arrangement, the second tuning structure 6 can control multiple second switching units 623 to connect the fourth upper frame point 21 to the third upper frame point 13 through the fourth capacitor element 61, and can also control the fourth upper frame point 21 to be grounded through the fourth inductor element 63. Moreover, the inductance values ​​of the multiple fourth inductor elements 63 are all different. When the fourth upper frame point 21 is grounded through different fourth inductor elements 63, the performance of the parasitic antenna formed by the first radiating stub 1 and the second radiating stub 2 is different, which can meet the performance requirements under different frequency bands.

[0100] Combination Figure 6 As shown, in some embodiments, the length of the first radial branch 1 is L1, the length of the second radial branch 2 is L2, the distance between the first upper frame point 11 and the first end 101 is L3, the distance between the second upper frame point 12 and the first end 101 is L4, the distance between the third upper frame point 13 and the first end 101 is L5, and the distance between the fourth upper frame point 21 and the second end 102 is L6. Wherein, L1 > L2 > L3 > L4 > L5 = L6.

[0101] When the size and structure of the antenna assembly meet the above conditions, the antenna assembly has good radiation capability and the antenna has high working efficiency.

[0102] In some embodiments, reference Figure 6 As shown, the length L1 of the first radial branch 1 ranges from 34 to 44 mm, the length L2 of the second radial branch 2 ranges from 15 to 25 mm, the distance L3 between the first upper frame point 11 and the first end 101 ranges from 13 to 18 mm, the distance L4 between the second upper frame point 12 and the first end 101 ranges from 7 to 11 mm, the distance L5 between the third upper frame point 13 and the first end 101 ranges from 1 to 3 mm, and the distance L6 between the fourth upper frame point 21 and the second end 102 ranges from 1 to 3 mm.

[0103] For example, the length L1 of the first radial branch 1 can be 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, or 44mm. Optionally, L1 can be 39mm.

[0104] The length L2 of the second radial branch 2 can be, for example, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, or 25mm. Optionally, L2 can be 20mm.

[0105] The distance L3 between the first upper frame point 11 and the first end 101 can be, for example, 13mm, 13.5mm, 14mm, 14.5mm, 15mm, 15.5mm, 16mm, 16.5mm, 17mm, 17.5mm, or 18mm. Optionally, the value of L3 is 15.5mm.

[0106] The distance L4 between the second upper frame point 12 and the first end 101 can be, for example, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, or 11mm. Optionally, the value of L4 is 9mm.

[0107] The distance L5 between the third upper frame point 13 and the first end 101 can be, for example, 1mm, 1.5mm, 2mm, 2.5mm, or 3mm. Optionally, the value of L5 is 2mm.

[0108] The distance L6 between the fourth upper frame point 21 and the second end 102 can be, for example, 1mm, 1.5mm, 2mm, 2.5mm, or 3mm. Optionally, the value of L5 can be 2mm.

[0109] In some embodiments, the antenna assembly is used for transmitting and receiving wireless signals in the LB band and the MHB band.

[0110] In some embodiments, reference Figures 2 to 6 As shown, the power supply structure 4 includes a feed source 41, a first capacitor element 42, a first inductor element 43, a second capacitor element 44, and a second inductor element 45.

[0111] The first tuning structure 5 includes two third capacitor elements 51, two third inductor elements 52, and a first switching element 53. The first switching element 53 includes two first switching units 531. Each third capacitor element 51 and each third inductor element 52 are respectively connected to a first switching unit 531.

[0112] Among them, the capacitance values ​​of the two third capacitor elements 51 are 0.9pF and 33pF respectively, and the inductance value of one of the two third inductor elements 52 is 0 ohm.

[0113] The second tuning structure 6 includes a fourth capacitor element 61, three fourth inductor elements 63, and a second switch element 62. The second switch element 62 includes four switch peripheral ports 622, and the fourth capacitor element 61 and the fourth inductor element 63 are respectively connected to the four switch peripheral ports 622 in a one-to-one correspondence.

[0114] The capacitance of the fourth capacitor element 61 is 1.7pF, and the inductance of the three fourth inductor elements 63 are 6.2nH, 1.5nH and 1.5nH, respectively.

[0115] The length L1 of the first radial branch 1 is 39mm, the length L2 of the second radial branch 2 is 20mm, the distance L3 between the first upper frame point 11 and the first end 101 is 15.5mm, the distance L4 between the second upper frame point 12 and the first end 101 is 9mm, the distance L5 between the third upper frame point 13 and the first end 101 is 2mm, and the distance L6 between the fourth upper frame point 21 and the second end 102 is 2mm.

[0116] Based on the antenna assembly provided in the above embodiments, the antenna assembly can achieve coverage of frequency bands B5, B8, B28, B1, B3, B40, and B41. The specific control strategies of the first and second switching elements in each frequency band are shown in Table 1 below:

[0117] frequency band First switching element Second switching element B5 0.9pF off B8 off off B28 off 1.7pF span B3 0ohm 6.2nH B1 33pF 1.5nH B40 off 1.5nH B41 off 0.5nH

[0118] Table 1 Control strategies for the first and second switching elements.

[0119] In the table above, "off" indicates that all first switching units 531 in the first switching element 53 are open, or all second switching units 623 in the second switching element 62 are open. "0.9pF" in the B5 frequency band for the first switching element 53 means that the first switching unit 531 corresponding to the third capacitor element 51 with a capacitance of 0.9pF is closed, and the remaining first switching units 531 are open. "1.7pF across the gap" in the B28 frequency band for the second switching unit 623 means that the second switching unit 623 corresponding to the fourth capacitor element 61 with a capacitance of 1.7pF is closed, and the remaining second switching units 623 are open.

[0120] Therefore, the antenna assembly of this embodiment can achieve coverage of the B5, B8, B28, B1, B3, B40 and B41 frequency bands. Moreover, the fourth capacitor element 61 can be connected between the first radiating stub 1 and the second radiating stub 2 using the second switching element 62, thereby improving the operating efficiency of the antenna assembly in the B28 frequency band. The fourth inductor element 63 can also be connected to the second radiating stub 2 using the second switching element 62, thereby improving the operating efficiency of the antenna assembly in the B3, B1, B40 and B41 frequency bands.

[0121] Figure 7 , Figure 8 and Figure 9 These are the performance test results of the antenna assembly in this embodiment. From... Figure 7 It can be seen that the return loss of the antenna assembly in the B5, B8, B28, B1, B3, B40 and B41 frequency bands is basically below -10dB, which shows good return loss performance. Figure 8In this context, "Tot.B28" refers to the radiation efficiency of the B28 band, "Tot.B8" refers to the radiation efficiency of the B8 band, and "Tot.B5" refers to the radiation efficiency of the B5 band. Figure 9 In the figure, "Tot.B3" refers to the radiation efficiency of the B3 band, "Tot.B1" refers to the radiation efficiency of the B1 band, "Tot.B40" refers to the radiation efficiency of the B40 band, and "Tot.B41" refers to the radiation efficiency of the B41 band. As can be seen from the figure, the radiation efficiency of the antenna assembly in each of the above frequency bands is higher than -6dB, indicating that the antenna assembly has good radiation efficiency.

[0122] Figure 10 and Figure 11 This is a comparison of the performance of the antenna assembly in this embodiment with related technologies. Figure 10 In this context, "Tot.B28-1" refers to the radiation efficiency of the antenna assembly in the B28 band of this embodiment, "Tot.B28" refers to the radiation efficiency of the antenna assembly in the B28 band of related technologies, "Tot.B5-1" refers to the radiation efficiency of the antenna assembly in the B5 band of this embodiment, "Tot.B5" refers to the radiation efficiency of the antenna assembly in the B5 band of related technologies, "Tot.B8-1" refers to the radiation efficiency of the antenna assembly in the B8 band of this embodiment, and "Tot.B8" refers to the radiation efficiency of the antenna assembly in the B8 band of related technologies. Figure 11 In the figure, "AC2-B3" refers to the radiation efficiency of the antenna assembly in the B3 band of this embodiment, "AC1-B3" refers to the radiation efficiency of the antenna assembly in the B3 band of related technologies, "AC2-B1" refers to the radiation efficiency of the antenna assembly in the B1 band of this embodiment, "AC1-B1" refers to the radiation efficiency of the antenna assembly in the B1 band of related technologies, "AC2-B40" refers to the radiation efficiency of the antenna assembly in the B40 band of this embodiment, "AC1-B40" refers to the radiation efficiency of the antenna assembly in the B40 band of related technologies, "AC2-B41" refers to the radiation efficiency of the antenna assembly in the B41 band of this embodiment, and "AC1-B41" refers to the radiation efficiency of the antenna assembly in the B41 band of related technologies. As can be seen from the figure, the radiation efficiency of the antenna assembly in this embodiment in each of the above frequency bands is improved to varying degrees compared with related technologies, with the improvement effect being most obvious in the B5, B3, and B1 bands.

[0123] On the other hand, this embodiment provides an electronic device, which includes the antenna assembly of this application.

[0124] The electronic device in this embodiment uses the antenna assembly of this application and has all the beneficial technical effects of all embodiments herein.

[0125] In some embodiments, reference Figure 12As shown, the electronic device also includes a mid-frame module 100, which is a metal mid-frame, and the first radiating branch 1 and the second radiating branch 2 are both formed by the side frames of the mid-frame module 100.

[0126] The electronic device provided in this application 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 smartphone (e.g., a phone based on iPhone™ or Android™), a portable gaming device (e.g., Nintendo DS™, PlayStation Portable™, Gameboy Advance™, iPhone™), a laptop computer, a PDA, a portable internet device, a music player, and a data storage device, other handheld devices, and such as headphones. The electronic device can also be other wearable devices that require charging (e.g., head-mounted devices (HMDs) such as electronic bracelets, electronic necklaces, electronic devices, or smartwatches).

[0127] Electronic devices can also be any one of a plurality of electronic devices, including but not limited to cellular phones, smartphones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, other media recorders, radios, medical devices, vehicle transport instruments, calculators, programmable remote controls, pagers, laptop computers, desktop computers, printers, netbooks, personal digital assistants (PDAs), portable multimedia players (PMPs), Moving Image Experts Group (MPEG-1 or MPEGG-2) audio layer 3 (MP3) players, portable medical devices, and digital cameras and combinations thereof.

[0128] In some cases, electronic devices can perform multiple functions (e.g., playing music, displaying video, storing pictures, and receiving and sending telephone calls). If desired, electronic devices can be such as cellular phones, media players, other handheld devices, wristwatches, pendant devices, handset devices, or other compact portable devices.

[0129] It should be noted that in this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0130] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0131] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this application.

[0132] The above description is merely an embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. An antenna assembly, characterized in that, The antenna assembly includes: a first radiating stub (1) and a second radiating stub (2); The first radiating branch (1) includes a first end (101) and a second end (102), the second radiating branch (2) includes a third end (201) and a fourth end (202), a gap structure (3) is provided between the first end (101) and the third end (201), and the second end (102) and the fourth end (202) are respectively grounded; The first radial branch (1) is provided with a first upper frame point (11), a second upper frame point (12) and a third upper frame point (13). The third upper frame point (13) is arranged close to the first end (101). The second upper frame point (12) is located on the side of the third upper frame point (13) facing the second end (102). The first upper frame point (11) is located on the side of the second upper frame point (12) facing the second end (102). The second radiating branch (2) is provided with a fourth upper frame point (21), which is arranged close to the third end (201).

2. The antenna assembly according to claim 1, characterized in that, The antenna assembly also includes a feeding structure (4), a first tuning structure (5), and a second tuning structure (6); The power supply structure (4) is electrically connected to the first upper frame point (11), the first tuning structure (5) is electrically connected to the second upper frame point (12), and the second tuning structure (6) is electrically connected to the third upper frame point (13) and the fourth upper frame point (21), respectively.

3. The antenna assembly according to claim 2, characterized in that, The power supply structure (4) includes a feed source (41), a first capacitor element (42), a first inductor element (43), a second capacitor element (44), and a second inductor element (45); The feed source (41) is electrically connected to one end of the first capacitor element (42), the other end of the first capacitor element (42) is electrically connected to one end of the first inductor element (43), the other end of the first inductor element (43) is electrically connected to one end of the second capacitor element (44), the other end of the second capacitor element (44) is electrically connected to the first upper frame point (11) and one end of the second inductor element (45) respectively, and the other end of the second inductor element (45) is grounded.

4. The antenna assembly according to claim 2, characterized in that, The first tuning structure (5) includes at least one third capacitor element (51), at least one third inductor element (52), and a first switching element (53); One end of the at least one third capacitor element (51) and one end of the at least one third inductor element (52) are electrically connected to the second upper frame point (12), and the other ends of the at least one third capacitor element (51) and the at least one third inductor element (52) are grounded through the first switching element (53).

5. The antenna assembly according to claim 4, characterized in that, The first switching element (53) includes at least two first switching units (531), one end of each first switching unit (531) is electrically connected to a third capacitor element (51) or a third inductor element (52), and the other end of the first switching unit (531) is grounded.

6. The antenna assembly according to claim 2, characterized in that, The second tuning structure (6) includes at least one fourth capacitor element (61) and a second switching element (62); One end of the at least one fourth capacitor element (61) is electrically connected to the third upper frame point (13), and the other end of the at least one fourth capacitor element (61) is electrically connected to the fourth upper frame point (21) through the second switch element (62).

7. The antenna assembly according to claim 6, characterized in that, The second tuning structure (6) also includes a plurality of fourth inductor elements (63); The second switching element (62) includes a radio frequency signal common terminal (621), multiple switch peripheral ports (622) and multiple second switching units (623); each of the switch peripheral ports (622) is electrically connected to the radio frequency signal common terminal (621) through a second switching unit (623); At least one of the switch peripheral ports (622) is electrically connected to at least one fourth capacitor element (61), and the remaining switch peripheral ports (622) are grounded through the fourth inductor element (63).

8. The antenna assembly according to any one of claims 1 to 7, characterized in that, The length of the first radial branch (1) is L1, the length of the second radial branch (2) is L2, the distance between the first upper frame point (11) and the first end (101) is L3, the distance between the second upper frame point (12) and the first end (101) is L4, the distance between the third upper frame point (13) and the first end (101) is L5, and the distance between the fourth upper frame point (21) and the second end (102) is L6. Among them, L1>L2>L3>L4>L5=L6.

9. The antenna assembly according to any one of claims 1 to 8, characterized in that, The antenna assembly is used for transmitting and receiving wireless signals in the LB and MHB bands.

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

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