Antenna assembly and electronic equipment

Abstract

The utility model relates to an antenna assembly and electronic equipment, and relates to the technical field of electronic equipment. The antenna assembly comprises: a first radiator configured to generate a first resonant mode under excitation of a first signal source; the second radiator comprises a first free end and a second free end, and the first free end of the second radiator and one end of the first radiator are arranged at an interval to form a first gap; the second radiator at least comprises a first tuning point and a second tuning point which are arranged at an interval; the second free end of the second radiator is configured to generate at least one resonant mode through coupling of the first radiator under excitation of the first signal source; the first matching branch is electrically connected with the first tuning point; the second matching branch is electrically connected with the second tuning point; the first matching branch and the second matching branch are configured to adjust the frequency of at least one resonant mode not to be within the first frequency band range of the first resonant mode. The working performance of the antenna assembly in the first frequency band can be improved.

Description

Technical Field

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

[0002] In recent years, with the development of data communication technology, in order to improve the communication of equipment, the number of antennas required to be configured inside the equipment has also increased accordingly. Due to the increasingly complex antenna environment and the need for multi-band coverage, the design and matching of antennas often face huge difficulties, which puts higher requirements on antenna design.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0004] The present disclosure provides an antenna assembly and an electronic device.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided an antenna assembly, including:

[0006] a first radiator, wherein the first radiator is provided with a first feeding point, the first feeding point is electrically connected to a first signal source, and the first radiator is configured to generate a first resonant mode under the excitation of the first signal source;

[0007] a second radiator, the second radiator comprising a first free end and a second free end, the first free end of the second radiator being spaced apart from one end of the first radiator to form a first gap; the second radiator comprising at least a first tuning point and a second tuning point spaced apart from each other;

[0008] The second free end of the second radiator is configured to generate at least one resonant mode through coupling with the first radiator under the excitation of the first signal source;

[0009] a first matching branch electrically connected to the first tuning point;

[0010] a second matching branch electrically connected to the second tuning point;

[0011] The first matching branch and the second matching branch are configured to adjust the frequency of the at least one resonant mode; wherein the frequency of the at least one resonant mode is not within a first frequency band of the first resonant mode.

[0012] In some embodiments, the second radiator further includes: a third tuning point;

[0013] The first tuning point, the third tuning point and the second tuning point are set at intervals;

[0014] The distance between the first tuning point and the first gap is a first distance, the distance between the second tuning point and the first gap is a second distance, and the distance between the third tuning point and the first gap is a third distance.

[0015] The first distance is smaller than the third distance, and the third distance is smaller than the second distance.

[0016] In some embodiments, an antenna assembly is provided that further includes: a third matching branch;

[0017] The third matching branch is electrically connected to the third tuning point;

[0018] The first matching branch, the second matching branch, and the third matching branch are configured to adjust the frequency of the at least one resonant mode.

[0019] In some embodiments, the second radiator further includes: a fourth tuning point;

[0020] The first tuning point, the third tuning point, the fourth tuning point and the second tuning point are arranged at intervals;

[0021] Wherein, the distance between the fourth tuning point and the first gap is a fourth distance;

[0022] The first distance is smaller than the third distance, the third distance is smaller than the fourth distance, and the fourth distance is smaller than the second distance.

[0023] In some embodiments, an antenna assembly is provided that further includes: a fourth matching branch;

[0024] The fourth matching branch is electrically connected to the fourth tuning point;

[0025] The first matching branch, the second matching branch, the third matching branch, and the fourth matching branch are configured to adjust the frequency of the at least one resonant mode.

[0026] In some embodiments, the third matching branch includes:

[0027] a third capacitor, a first end of the third capacitor being electrically connected to the third tuning point;

[0028] A third switch, wherein a first end of the third switch is electrically connected to the second end of the third capacitor, and a second end of the third switch is grounded.

[0029] The fourth matching branch includes:

[0030] a fourth capacitor, a first end of the fourth capacitor being electrically connected to the fourth tuning point;

[0031] a fourth switch, wherein a first end of the fourth switch is electrically connected to the second end of the fourth capacitor, and a second end of the fourth switch is grounded.

[0032] In some embodiments, the second tuning point is electrically connected to a second signal source, and the second tuning point is configured to generate a second resonant mode under the excitation of the second signal source.

[0033] In some embodiments, the first matching branch includes:

[0034] a first capacitor, wherein a first end of the first capacitor is electrically connected to the first tuning point;

[0035] A first switch, wherein a first end of the first switch is electrically connected to the second end of the first capacitor, and a second end of the first switch is grounded.

[0036] The second matching branch includes:

[0037] a second capacitor, wherein a first end of the second capacitor is electrically connected to the second tuning point;

[0038] A second switch, wherein a first end of the second switch is electrically connected to the second end of the second capacitor, and a second end of the second switch is grounded.

[0039] In some embodiments, an antenna assembly is provided, further comprising:

[0040] The third radiator is configured such that the second free end of the second radiator is spaced from one end of the third radiator to form a second gap, and the third radiator is coupled to the second radiator through the second gap.

[0041] According to a second aspect of an embodiment of the present disclosure, there is provided an electronic device, including:

[0042] case;

[0043] at least one antenna assembly, wherein the at least one antenna assembly is disposed on the housing;

[0044] The at least one antenna assembly is any one of the antenna assemblies described in the first aspect above.

[0045] In some embodiments, the housing includes a metal frame;

[0046] The metal frame includes a first metal branch, a second metal branch, and a third metal branch arranged at intervals. The first metal branch forms a first radiator, the second metal branch forms a second radiator, and the third metal branch forms a third radiator.

[0047] In some embodiments, the second metal branch includes: a first upper frame point, a second upper frame point, a third upper frame point, and a fourth upper frame point;

[0048] The first upper frame point forms a first tuning point, the second upper frame point forms a second tuning point, the third upper frame point forms a third tuning point, and the fourth upper frame point forms a fourth tuning point.

[0049] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0050] An antenna assembly comprising a first radiator and a second radiator is provided. The first radiator is provided with a first feeding point, the first feeding point being electrically connected to a first signal source. Under excitation of the first signal source, the first radiator generates a first resonant mode. The second radiator includes a first free end and a second free end, the first free end of the second radiator being spaced apart from one end of the first radiator to form a first gap. The second free end of the second radiator is configured to generate at least one resonant mode through coupling with the first radiator under excitation of the first signal source. A first tuning point and a second tuning point are spaced apart on the second radiator, and a first matching branch is electrically connected to the first tuning point and a second matching branch is electrically connected to the second tuning point to adjust the frequency of the at least one resonant mode so that the frequency of the at least one resonant mode is not within the first frequency band of the first resonant mode. Thus, when the first radiator is excited by the first signal source, the first matching branch cooperates with the first tuning point and the second matching branch cooperates with the second tuning point to adjust the frequency of the at least one resonant mode generated by the coupling of the first radiator away from the first frequency band, thereby improving the operating performance of the antenna assembly in the first frequency band.

[0051] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0053] Figure 1 This is a schematic diagram of the structure of an antenna assembly according to some embodiments of the present disclosure. Figure 1 .

[0054] Figure 2 This is a schematic diagram of the structure of an antenna assembly according to some embodiments of the present disclosure. Figure 2 .

[0055] Figure 3 This is a schematic diagram of the structure of an antenna assembly according to some embodiments of the present disclosure. Figure 3 .

[0056] Figure 4 This is a schematic diagram of the structure of an antenna assembly according to some embodiments of the present disclosure. Figure 4 .

[0057] Figure 5 This is a schematic diagram of the structure of an antenna assembly according to some embodiments of the present disclosure. Figure 5 .

[0058] Figure 6 This is a schematic diagram of the structure of an antenna assembly according to some embodiments of the present disclosure. Figure 6 .

[0059] Figure 7 This is a schematic structural diagram of an electronic device according to some embodiments of the present disclosure.

[0060] Figure 8 It is a structural schematic diagram of an antenna assembly in a specific example according to some embodiments of the present disclosure.

[0061] Figure 9 The antenna efficiency in a specific example shown in some embodiments of the present disclosure is shown in FIG. Figure 1 .

[0062] Figure 10 This is a schematic diagram of antenna efficiency in a specific example shown in some embodiments of the present disclosure. Figure 2 .

[0063] Figure 11 This is a schematic diagram of antenna efficiency in a specific example shown in some embodiments of the present disclosure. Figure 3 .

[0064] Figure 12 is a structural diagram of an electronic device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0065] Some embodiments of the present disclosure will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. Various changes, modifications and equivalents of the methods, devices and / or systems described herein will become apparent after understanding the present disclosure. For example, the order of operations described herein is merely an example and is not limited to those orders set forth herein, but may be changed as becomes apparent after understanding the present disclosure, except for operations that must be performed in a specific order. In addition, for the sake of clarity and brevity, descriptions of features known in the art may be omitted.

[0066] The embodiments described in the following examples of the present disclosure do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0067] The specific implementation of the embodiment of the present disclosure is described in detail below with reference to the accompanying drawings.

[0068] Figure 1 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure. Figure 1 .like Figure 1 As shown, the antenna assembly includes:

[0069] The first radiator 10 is provided with a first feeding point 110 . The first feeding point 110 is electrically connected to a first signal source 100 . The first radiator 10 is configured to generate a first resonant mode under the excitation of the first signal source 100 .

[0070] In some exemplary embodiments of the present disclosure, a first signal source 100 generates an RF signal. The first signal source 100 transmits the RF signal to a first feed point 110 via a feed source or feed system, enabling the antenna assembly to effectively radiate the signal using a first resonant mode, thereby providing communication capabilities, such as non-satellite communications such as cellular, GPS, and Wi-Fi, and satellite communications such as Beidou and GPS. It should be noted that the first frequency band of the first resonant mode is the operating frequency band of the antenna assembly when providing the corresponding communication capabilities.

[0071] Exemplarily, the first signal source 100 may be a radio frequency front-end module in a WiFi router or an access point AP, and the first resonant mode may be a 5 GHz Wi-Fi signal, so that the antenna assembly provides 5 GHz Wi-Fi communication capability.

[0072] The second radiator 20 includes a first free end 201 and a second free end 202. The first free end 201 of the second radiator 20 is spaced apart from one end of the first radiator 10 to form a first gap 203. The second radiator 20 includes at least a first tuning point 210 and a second tuning point 220 spaced apart from each other. It should be noted that the second radiator 20 is coupled to the first radiator 10 via the first gap 203. The second free end 202 of the second radiator 20 is configured to generate at least one resonant mode through coupling with the first radiator 10 under the excitation of the first signal source 100.

[0073] In some exemplary embodiments of the present disclosure, due to the detection requirements of the SAR Sensor (Synthetic Aperture Radar sensor, active microwave remote sensing technology, which generates high-resolution radar images by emitting microwave signals and receiving signals reflected from the ground) provided by the terminal, it is often necessary to set it on the suspended branch of the antenna component, which means that the top antenna of the electronic device needs to be in a fully suspended state, that is, the first radiator 10 and the second radiator 20 can be suspended branches. Due to the lack of ribs (support structure) in this state, there is a serious mutual coupling effect between the top antennas. The first tuning point 210 and the second tuning point 220 can be set on the second radiator 20 to adjust the frequency of at least one resonant mode (higher-order mode) caused by the coupling current brought by the first radiator 10 to the second radiator 20.

[0074] The first matching branch 21 is electrically connected to the first tuning point 210 .

[0075] The second matching branch 22 is electrically connected to the second tuning point 220 .

[0076] The first matching branch 21 and the second matching branch 22 are configured to adjust the frequency of at least one resonant mode so that the frequency of the at least one resonant mode is not within the first frequency band of the first resonant mode.

[0077] In some exemplary embodiments of the present disclosure, Figure 2 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure. Figure 2 ,like Figure 2As shown, the first matching branch 21 includes: a first capacitor 211, a first end of the first capacitor 211 electrically connected to the first tuning point 210; a first switch 212, a first end of the first switch 212 electrically connected to the second end of the first capacitor 211, and a second end of the first switch 212 is grounded. The second matching branch 22 includes: a second capacitor 221, a first end of the second capacitor 221 electrically connected to the second tuning point 220; a second switch 222, a first end of the second switch 222 electrically connected to the second end of the second capacitor 221, and a second end of the second switch 222 is grounded.

[0078] It should be noted that the antenna assembly may also include other feed points to provide other communication capabilities, that is, the antenna assembly operates in frequency bands other than the first frequency band. In response to the antenna assembly operating in the first frequency band, the first switch 212 and the second switch 222 are closed, the first tuning point 210 is electrically connected to the first capacitor 211 and then to ground, and the second tuning point 220 is electrically connected to the second capacitor 221 and then to ground. In response to the antenna assembly operating in other frequency bands, the first switch 212 and the second switch 222 are opened, and the first matching branch 21 and the second matching branch 22 are not put into operation to avoid affecting the operation of the antenna assembly in other frequency bands.

[0079] In some exemplary embodiments of the present disclosure, the first switch 212 and the second switch 222 may be switches with a single-pole single-throw function formed for electronic components such as transistors and switch tubes.

[0080] In some exemplary embodiments of the present disclosure, Figure 3 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure. Figure 3 ,like Figure 3 As shown, the antenna assembly provided is Figure 2 Based on the structure shown, the present invention further includes: a third tuning point 230 and a third matching branch 23. The first tuning point 210, the third tuning point 230, and the second tuning point 220 are spaced apart. The distance between the first tuning point 210 and the first gap 203 is a first distance 301, the distance between the second tuning point 220 and the first gap 203 is a second distance 302, and the distance between the third tuning point 230 and the first gap 203 is a third distance 303. The first distance 301 is smaller than the third distance 303, and the third distance 303 is smaller than the second distance 302. The third matching branch 23 is electrically connected to the third tuning point 230. The first matching branch 21, the second matching branch 22, and the third matching branch 23 are configured to adjust the frequency of at least one resonant mode so that the frequency is not within the first frequency band.

[0081] In some exemplary embodiments of the present disclosure, Figure 4 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure. Figure 4 ,like Figure 4 As shown, the antenna assembly provided is Figure 3 Based on the structure shown, the present invention further includes: a fourth tuning point 240 and a fourth matching branch 24. The first tuning point 210, the third tuning point 230, the fourth tuning point 240, and the second tuning point 220 are spaced apart. The distance between the fourth tuning point 240 and the first gap 203 is a fourth distance 304. The first distance 301 is less than the third distance 303, and the third distance 303 is less than the fourth distance 304. The fourth distance 304 is less than the second distance 302. The fourth matching branch 24 is electrically connected to the fourth tuning point 240. The first matching branch 21, the second matching branch 22, the third matching branch 23, and the fourth matching branch 24 are configured to adjust the frequency of at least one resonant mode so that the frequency is not within the first frequency band.

[0082] For example, Figure 5 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure. Figure 5 ,like Figure 5 As shown, in the antenna assembly, the second radiator 20 is provided with a first tuning point 210 , a third tuning point 230 , a fourth tuning point 240 and a second tuning point 220 at intervals. The first tuning point 210 is close to the first free end 201 , and the second tuning point 220 is close to the second free end 202 .

[0083] Specifically, the third matching branch 23 includes: a third capacitor 231, a first end of the third capacitor 231 electrically connected to the third tuning point 230; a third switch 232, a first end of the third switch 232 electrically connected to the second end of the third capacitor 231, and a second end of the third switch 232 grounded. The fourth matching branch 24 includes: a fourth capacitor 241, a first end of the fourth capacitor 241 electrically connected to the fourth tuning point 240; and a fourth switch 242, a first end of the fourth switch 242 electrically connected to the second end of the fourth capacitor 241, and a second end of the fourth switch 242 grounded.

[0084] In some exemplary embodiments of the present disclosure, Figure 5 As shown, the second tuning point 220 is electrically connected to a second signal source 200 and is configured to generate a second resonant mode under the stimulation of the second signal source 200. In other words, the second tuning point 220 also serves as a feeding point, providing communication capabilities under the stimulation of the second signal source 200. Optionally, the second tuning point 220 reuses the feeding point provided on the second radiator 20 to achieve the tuning function. By reusing the feeding point and the tuning point, the effects of coupling can be reduced, while also reducing the number of structures provided in the antenna assembly, thereby reducing costs.

[0085] Exemplarily, the second signal source 200 can be a RF front-end module in a Beidou satellite or device, which transmits the signal to the second tuning point 220 through a feeding power source or feeding system to generate a second resonant mode. The second resonant mode can be a B1 band (1561.098 MHz), B2 band (1207.14 MHz), or B3 band (1268.52 MHz) signal, so that the antenna assembly provides Beidou communication capabilities.

[0086] In some exemplary embodiments of the present disclosure, Figure 6 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure. Figure 6 ,like Figure 6 As shown, the antenna assembly provided is Figure 5 Based on the structure shown, it further includes: a third radiator 30 , the second free end 202 of the second radiator 20 and one end of the third radiator 30 are spaced apart to form a second gap 301 , and the third radiator 30 is coupled to the second radiator 20 through the second gap 301 .

[0087] It should be noted that the first radiator 10, the second radiator 20, and the third radiator 30 can all be antenna radiators in the form of FPC (Flexible Printed Circuit), LDS (Laser Direct Structure), PDS (Printing Direct Structure), etc., or they can be antenna radiators in the form of MDA (in-mold molding), or they can be antenna radiators formed by structures such as the conductor structure of an electronic device and the metal traces on a circuit board. In actual applications, the shapes and sizes of the first radiator 10, the second radiator 20, and the third radiator 30 can be set according to actual needs. For example, in a practical application example, the first radiator 10 and the third radiator 30 can be "L"-shaped, and the second radiator 20 can be long and narrow.

[0088] For example, the third radiator 30 is provided with a second feed point electrically connected to a third signal source. The third radiator 30 is configured to generate a third resonant mode under excitation by the third signal source. It is understood that if the second radiator 20 does not have a tuning point, when the first radiator 10 generates the first resonant mode, a coupling current is induced in the second radiator 20 due to the coupling effect. This coupling current further affects the third radiator 30, causing further coupling on the third radiator 30, thereby affecting the operation of the antenna assembly.

[0089] Based on the same inventive concept, the present disclosure also provides an electronic device, as described in the following embodiments. Since the principle of solving the problem in the electronic device embodiment is similar to that of the above antenna assembly embodiment, the implementation of the above antenna assembly embodiment can be referred to, and the repeated parts will not be repeated.

[0090] In some embodiments of the present disclosure, the electronic device includes at least one antenna assembly provided by any one of the above embodiments, such as Figure 7 As shown, the electronic device includes: a housing 71 , and at least one antenna assembly 72 is arranged in the housing 71 .

[0091] It should be noted that, illustratively, the electronic device can be a mobile phone, a tablet computer, an e-reader, an MP3 player, an MP4 player, a laptop computer, a car computer or a desktop computer, a portable terminal, a laptop terminal, a desktop terminal, a sports camera, a drone, a monitor camera and other similar products.

[0092] It should be noted that the electronic device in the embodiment of the present disclosure may be a foldable electronic device or a straight-screen electronic device (non-foldable electronic device). In one possible embodiment, the electronic device is a foldable electronic device, and the antenna assembly 72 may be arranged on any one of the first body and the second body connected by a rotating shaft, such as being arranged on the top of the first body. In another possible embodiment, the electronic device is a straight-screen electronic device, and the antenna assembly 72 is arranged on the top of the electronic device.

[0093] In some exemplary embodiments of the present disclosure, the first radiator 10 and the third radiator 30 are located at two rounded corners of the electronic device, respectively, with the second radiator 20 disposed between the first radiator 10 and the third radiator 30. The rounded corner design, also known as a fillet or chamfer, refers to the rounded corners of an electronic device, and is used to enhance the aesthetics, feel, and drop resistance of the electronic device. Placing the antenna assembly 72 at the rounded corners of the electronic device can reduce interference with the radiation of the antenna assembly 72 from other electronic components within the electronic device, ensuring stable and efficient operation of the antenna assembly 72.

[0094] In some exemplary embodiments of the present disclosure, Figure 7As shown, the housing 71 includes a metal frame, which includes a first metal branch 711, a second metal branch 712, and a third metal branch 713 arranged at intervals. The first metal branch 711 forms the first radiator 10, the second metal branch 712 forms the second radiator 20, and the third metal branch 713 forms the third radiator 30. Specifically, the second metal branch 712 includes a first upper frame point 721, a second upper frame point 722, a third upper frame point 723, and a fourth upper frame point 724. The first upper frame point 721 forms the first tuning point 210, the second upper frame point 722 forms the second tuning point 220, the third upper frame point 723 forms the third tuning point 230, and the fourth upper frame point 724 forms the fourth tuning point 240.

[0095] By setting the metal frame as the radiator of the antenna assembly 72, it is not only possible to save space in the electronic device, but also to realize the antenna function, structural support function and decorative function. It can also provide a larger effective radiation area, thereby improving the gain and radiation efficiency of the antenna, and helping to improve signal strength and coverage. It can support multiple frequency bands, including cellular networks (such as 4G / 5G), WiFi, Bluetooth, etc., thereby realizing multi-band communication. With the help of metal properties, electromagnetic interference between internal electronic components can be reduced, and the electromagnetic compatibility of the entire system can be improved. It also plays a certain shielding role, reducing the impact of external electromagnetic interference on the internal circuit.

[0096] In order to better illustrate the electronic device and antenna assembly provided by the embodiments of the present disclosure, a specific example is now provided for further explanation.

[0097] like Figure 8 As shown, the antenna assembly provided for a smartphone provided for this specific example includes a first radiator 10, a second radiator 20 and a third radiator 30. A feeding point is provided on the first radiator 10: port 1 is used for feeding GPS L1 and Wi-Fi 2.4, and port 2 is used for feeding Wi-Fi 5G, that is, the antenna assembly operates in the Wi-Fi 2.4G frequency band (2.4-2.5GHz) and the Wi-Fi 5G frequency band (5.15-5.85GHz). As shown in the figure, inductors L1, L2, inductors C1, C2 and feeding power source V1 constitute the feeding circuit corresponding to port 1. Inductors C3, C4, inductor L3, switch RF1 and feeding power source V2 constitute the feeding circuit corresponding to port 2, which will not be described in detail in the embodiment of the present disclosure.

[0098] A feeding point, port 6, is provided on the second radiator 20 for feeding the Beidou antenna. As shown in the figure, resistor R1, inductors L4 and L5, switches RF12 and RF13, capacitor C9, and feed source V3 form the feeding circuit corresponding to port 6. This embodiment of the present disclosure is not further described here.

[0099] A feeding point is provided on the third radiator 30, and port 7 is used for feeding MHB (mid-high band) + N78. MHB (Mid-High Band): generally refers to the frequency band between 3.3GHz and 4.2GHz, which can be used for 5G communication. N78 (Band n78): is the 5G NR (New Radio) frequency band between 3.3GHz and 3.8GHz, one of the widely used 5G frequency bands. As shown in the figure, inductors L6, L7, L8, resistors R2, R3, switches RF21, RF22, RF23, capacitors C10, C11 and feed source V4 constitute the feeding circuit corresponding to port 7, which will not be described in detail in the embodiment of the present disclosure.

[0100] In this specific example, a smartphone requires SAR sensor detection, requiring the antenna assembly to be fully suspended. However, due to the lack of ribs (support structures), there is significant interference between the top antennas. Therefore, this specific example adds tuning bits to reduce or eliminate the resulting efficiency drop.

[0101] Specifically, based on the structure of the suspended branch in the middle, two tuning points are added at the beginning and end of the branch, respectively, to achieve good Wi-Fi 5G performance through fourth-order tuning. Tuning points ports 3, 4, and 5 are set on the second radiator 20, and port 6 is reused as a tuning point.

[0102] In response to port2 being in the working state, the state of the upper tuning point can be changed to analyze that each tuning point is not connected to the corresponding matching branch, such as Figure 9 As shown in the figure, there are two efficiency pits in the Wi-Fi 5G band, namely at 5.1GHz and 6.8GHz. This is because in the suspended state, the current is coupled to the suspended branches, generating high-order modes, which affects the efficiency of Wi-Fi 5G. When all tuning points are short-circuited, as shown in the figure, Figure 10 As shown in the figure, the WiFi 5G efficiency dip shifts toward lower frequencies, specifically at 5 GHz and 6 GHz. This means that the electrical length of the suspended stub affects the higher-order modes of Wi-Fi 5G. Adding capacitors or inductors to the matching branches can change the electrical length of the suspended stub, thereby shifting the frequency of the efficiency dip and improving Wi-Fi 5G performance in the target frequency band.

[0103] For suspended branches, the current at both ends is very weak and the electric field is very strong. By loading tuning positions at the points with strong electric fields, such as the four upper frame points (port 3, 4, 5, and 6) at both ends of the suspended branches, the high-order modes excited by the mutual coupling between the branches (radiators) can be weakened.

[0104] Specifically, if Figure 8As shown, port3 is electrically connected to capacitor C5 and switch RF2 and then grounded. The capacitance value of capacitor C5 is 0.6pF, which increases the electrical length coupled to the suspended branch and acts as an electrical parasitic to improve the antenna performance of Wi-Fi 5G. Port4 is electrically connected to capacitor C6 and switch RF3 and then grounded. The capacitance value of capacitor C6 is 33pF, which is equivalent to short-circuiting port4 to the ground, thereby blocking the coupling current caused by the Wi-Fi 5G antenna function from continuing to couple to the right side of the suspended branch. However, there is still a difference between the effects of short-circuiting to the ground and returning to the ground at the rib position, so some current will still be coupled to the right, so the same short-circuiting is performed at port5, that is, port5 is electrically connected to capacitor C7 and switch RF11 and then grounded. The capacitance value of capacitor C7 is 33pF, thereby further weakening the coupling current. Then, at port6, capacitor C8 and switch RF14 are electrically connected to the ground. The capacitance value of capacitor C8 is 0.6pF, which further drags the high-order modes caused by the remaining weak coupling current out of the band of the Wi-Fi 5G target frequency band. As shown Figure 11 As shown in the figure, this is the efficiency diagram of the antenna component after applying the above tuning points. It can be seen that the efficiency pit on the left side of Wi-Fi 5G has been dragged out of the band, and the efficiency pit on the right side has been basically eliminated. The efficiency of Wi-Fi 5G is -2.64~-2.19dB.

[0105] It can be seen from this specific example that by setting multiple tuning points and corresponding electrically connected matching branches on the second radiator 20, while being compatible with the antenna scheme of the suspended branch required for SARS-CoV-2 detection, a leap in Wi-Fi 5G performance is achieved through fourth-order tuning, so as to provide superior Wi-Fi 5G antenna performance on the fully suspended branch set on the top of the smartphone.

[0106] like Figure 12 As shown, the electronic device 120 may also include one or more of the following components: a processing component 1202 , a memory 1204 , a power component 1206 , a multimedia component 1208 , an audio component 1210 , an input / output (I / O) interface 1212 , a sensor component 1214 , and a communication component 1216 .

[0107] The processing component 1202 generally controls the overall operation of the electronic device 1200, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 1202 may include one or more processors 1220 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 1202 may include one or more modules to facilitate interaction between the processing component 1202 and other components. For example, the processing component 1202 may include a multimedia module to facilitate interaction between the multimedia component 1208 and the processing component 1202.

[0108] The memory 1204 is configured to store various types of data to support operations on the device 1200. Examples of such data include instructions for any application or method operating on the electronic device 1200, contact data, phone book data, messages, pictures, videos, etc. The memory 1204 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0109] The power supply component 1206 provides power to the various components of the electronic device 1200. The power supply component 1206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 1200.

[0110] The multimedia component 1208 includes a screen that provides an output interface between the electronic device 1200 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1208 includes a front camera and / or a rear camera. When the device 1200 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0111] The audio component 1210 is configured to output and / or input audio signals. For example, the audio component 1210 includes a microphone (MIC), which is configured to receive external audio signals when the electronic device 1200 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 1204 or transmitted via the communication component 1216. In some embodiments, the audio component 1210 also includes a speaker for outputting audio signals.

[0112] I / O interface 1212 provides an interface between processing component 1202 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0113] The sensor assembly 1214 includes one or more sensors for providing various aspects of the status assessment of the electronic device 1200. For example, the sensor assembly 1214 can detect the open / closed state of the device 1200, the relative positioning of components, such as the display and keypad of the electronic device 1200. The sensor assembly 1214 can also detect changes in the position of the electronic device 1200 or a component of the electronic device 1200, the presence or absence of user contact with the electronic device 1200, the orientation or acceleration / deceleration of the electronic device 1200, and changes in the temperature of the electronic device 1200. The sensor assembly 1214 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 1214 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1214 can also include an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0114] The communication component 1216 is configured to facilitate wired or wireless communication between the electronic device 1200 and other devices. The electronic device 1200 can access a wireless network based on a communication standard, such as WiFi, 3G, 4G, 5G, other communication standards, or a combination thereof. In some embodiments of the present disclosure, the communication component 1216 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In some embodiments of the present disclosure, the communication component 1216 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0115] It should be understood that, unless otherwise specifically noted, the features of the various embodiments of the present disclosure described herein may be combined with each other. As used herein, the term "and / or" includes any one of the relevant listed items and any combination of any two or more thereof; similarly, "at least one of" includes any one of the relevant listed items and any combination of any two or more thereof.

[0116] It should be understood that, unless otherwise expressly specified or limited, the terms "join," "attach," "install," "connect," "connect," "fix," etc. used in the embodiments of the present disclosure should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected, electrically connected, or communicable with each other; they can be directly connected, or indirectly connected through an intermediate medium, and they can be internally connected between two elements or an interactive relationship between two elements, unless otherwise expressly limited. For those skilled in the art, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0117] In addition, the term "over" as used in reference to a component, element, or material layer being formed "over" or located "over" a surface may be used herein to mean that the component, element, or material layer is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements, or layers are disposed between the surface and the component, element, or material layer. However, the term "over" as used in reference to a component, element, or material layer being formed "over" or located "over" a surface may alternatively have a specific meaning: the component, element, or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, e.g., in direct contact with the surface.

[0118] Although terms such as "first", "second" and "third" may be used herein to describe various components, parts, regions, layers or sections, these components, parts, regions, layers or sections are not limited to these terms. On the contrary, these terms are only used to distinguish one component, part, region, layer or section from another component, part, region, layer or section. Therefore, without departing from the teachings of each example, the first component, part, region, layer or section mentioned in the examples described herein may also be referred to as the second component, part, region, layer or section. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one such feature. In the description herein, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0119] It should be understood that spatially relative terms such as "above," "upper," "below," and "lower" are used herein to describe the relationship of one element to another element shown in the figures. In addition to the orientation depicted in the figures, such spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as being "above" or "upper" relative to another element will be "below" or "lower" relative to the other element. Thus, the term "above" encompasses both above and below orientations, depending on the spatial orientation of the device. The device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein should be interpreted accordingly.

[0120] Furthermore, the word "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as advantageous over other aspects or designs. Rather, the use of the word exemplary is intended to present concepts in a concrete manner. As used herein, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or." That is, unless otherwise specified or clear from the context, "X applies to A or B" is intended to mean any of the natural inclusive permutations. That is, if X applies to A; X applies to B; or X applies to both A and B, then "X applies to A or B" satisfies any of the aforementioned instances. Furthermore, the articles "a" and "an," as used in this application and the appended claims, are generally understood to mean "one or more," unless otherwise specified or clear from the context to refer to the singular form.

[0121] Likewise, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art after reading and understanding the specification and drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific functions of the described components, even if structurally not equivalent to the disclosed structures. In addition, although specific features of the present disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations as may be desired and beneficial for any given or specific application. In addition, with respect to the terms "including," "having," "having," "having," or variations thereof used in the specific embodiments or claims, such terms are intended to be inclusive in a manner similar to the term "comprising."

[0122] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0123] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An antenna assembly, characterized in that: include: a first radiator, wherein the first radiator is provided with a first feeding point, the first feeding point is electrically connected to a first signal source, and the first radiator is configured to generate a first resonant mode under the excitation of the first signal source; a second radiator, the second radiator comprising a first free end and a second free end, the first free end of the second radiator being spaced apart from one end of the first radiator to form a first gap; the second radiator comprising at least a first tuning point and a second tuning point spaced apart from each other; The second free end of the second radiator is configured to generate at least one resonant mode through coupling with the first radiator under the excitation of the first signal source; a first matching branch electrically connected to the first tuning point; a second matching branch electrically connected to the second tuning point; The first matching branch and the second matching branch are configured to adjust the frequency of the at least one resonant mode; wherein the frequency of the at least one resonant mode is not within a first frequency band of the first resonant mode.

2. The antenna assembly according to claim 1, wherein: The second radiator further includes: a third tuning point; The first tuning point, the third tuning point and the second tuning point are set at intervals; The distance between the first tuning point and the first gap is a first distance, the distance between the second tuning point and the first gap is a second distance, and the distance between the third tuning point and the first gap is a third distance. The first distance is smaller than the third distance, and the third distance is smaller than the second distance.

3. The antenna assembly according to claim 2, wherein: Also includes: a third matching branch; The third matching branch is electrically connected to the third tuning point; The first matching branch, the second matching branch, and the third matching branch are configured to adjust the frequency of the at least one resonant mode.

4. The antenna assembly according to claim 3, wherein: The second radiator further includes: a fourth tuning point; The first tuning point, the third tuning point, the fourth tuning point and the second tuning point are arranged at intervals; Wherein, the distance between the fourth tuning point and the first gap is a fourth distance; The first distance is smaller than the third distance, the third distance is smaller than the fourth distance, and the fourth distance is smaller than the second distance.

5. The antenna assembly according to claim 4, wherein: Also includes: a fourth matching branch; The fourth matching branch is electrically connected to the fourth tuning point; The first matching branch, the second matching branch, the third matching branch, and the fourth matching branch are configured to adjust the frequency of the at least one resonant mode.

6. The antenna assembly according to claim 5, wherein: The third matching branch includes: a third capacitor, a first end of the third capacitor being electrically connected to the third tuning point; a third switch, wherein a first end of the third switch is electrically connected to the second end of the third capacitor, and a second end of the third switch is grounded; The fourth matching branch includes: a fourth capacitor, a first end of the fourth capacitor being electrically connected to the fourth tuning point; a fourth switch, wherein a first end of the fourth switch is electrically connected to the second end of the fourth capacitor, and a second end of the fourth switch is grounded.

7. The antenna assembly according to claim 4, wherein: The second tuning point is electrically connected to a second signal source, and the second tuning point is configured to generate a second resonant mode under the excitation of the second signal source.

8. The antenna assembly according to claim 1, wherein: The first matching branch includes: a first capacitor, wherein a first end of the first capacitor is electrically connected to the first tuning point; a first switch, wherein a first end of the first switch is electrically connected to the second end of the first capacitor, and a second end of the first switch is grounded; The second matching branch includes: a second capacitor, wherein a first end of the second capacitor is electrically connected to the second tuning point; A second switch, wherein a first end of the second switch is electrically connected to the second end of the second capacitor, and a second end of the second switch is grounded.

9. The antenna assembly according to claim 1, wherein: Also includes: The third radiator is configured such that the second free end of the second radiator is spaced from one end of the third radiator to form a second gap, and the third radiator is coupled to the second radiator through the second gap.

10. An electronic device, characterized in that: include: case; at least one antenna assembly, wherein the at least one antenna assembly is disposed on the housing; The at least one antenna assembly is the antenna assembly according to any one of claims 1 to 9.

11. The electronic device according to claim 10, characterized in that The housing includes a metal frame; The metal frame includes a first metal branch, a second metal branch, and a third metal branch arranged at intervals. The first metal branch forms a first radiator, the second metal branch forms a second radiator, and the third metal branch forms a third radiator.

12. The electronic device according to claim 11, wherein: The second metal branch includes: a first upper frame point, a second upper frame point, a third upper frame point and a fourth upper frame point; The first upper frame point forms a first tuning point, the second upper frame point forms a second tuning point, the third upper frame point forms a third tuning point, and the fourth upper frame point forms a fourth tuning point.

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