Antenna assemblies and electronic devices

Abstract

The present application discloses an antenna assembly and electronic device. The antenna assembly includes a first antenna, a second antenna, an antenna connector, a first matching circuit, and a second matching circuit. A first gap exists between the first antenna radiator and the second antenna radiator in the first antenna. The first antenna radiator includes a first coupling end and a first grounding end, the second antenna radiator includes a second coupling end and a second grounding end, and the first antenna radiator is connected to the first matching circuit via the first grounding end to form a grounding system. The third antenna radiator in the second antenna includes a first free end and a third grounding end, and the third antenna radiator is connected to the second matching circuit via the third grounding end to form a grounding system. The antenna connector is connected to the first grounding end and the third grounding end, respectively. The first antenna radiator is provided with a first feeding point, and the third antenna radiator is provided with a second feeding point, thereby realizing a common radiator of the first and second antennas and improving the frequency band covered by the antenna assembly.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an antenna assembly and an electronic device. Background Art

[0002] In order to meet the high transmission rate requirements of the next generation of mobile communications, such as the fifth generation new radio (5G NR) communication, more and more mobile phones and other electronic devices with communication functions need to be equipped with multiple antenna components.

[0003] To improve the signal transmission and reception performance of electronic devices at different frequencies, antenna components in electronic devices typically need to generate more resonant modes. Currently, antenna components typically require multiple cuts in a metal body to form multiple antenna units, which in turn generate multiple resonant modes. However, increasing the number of cuts in the metal body not only affects the communication performance of the antenna component but also the overall appearance and structure of the electronic device. Summary of the Invention

[0004] In a first aspect, an embodiment of the present application provides an antenna assembly, comprising:

[0005] a first antenna, the first antenna comprising a first antenna radiator and a second antenna radiator, wherein a first gap exists between the first antenna radiator and the second antenna radiator;

[0006] a second antenna, the second antenna comprising a third antenna radiator;

[0007] Antenna connector;

[0008] a first matching circuit and a second matching circuit;

[0009] The first antenna radiator includes a first coupling end and a first grounding end, and the second antenna radiator includes a second coupling end and a second grounding end. The first coupling end and the second coupling end are respectively located on both sides of the first slot and coupled through the first slot. The first grounding end has a first grounding point, and the second grounding end has a second grounding point. The first antenna radiator is connected to the first matching circuit through the first grounding point to form a grounding system.

[0010] The third antenna radiator includes a first free end and a third ground end, the third ground end is provided with a third grounding point, the third antenna radiator is connected to the second matching circuit through the third ground end to be grounded to the ground system, and the antenna connector is respectively connected to the first ground end and the third ground end;

[0011] A first feeding point is provided on the first antenna radiator, and the first feeding point is used to connect to a first feed source;

[0012] A second feeding point is provided on the third antenna radiator, and the second feeding point is used to connect to a second feed source.

[0013] It can be seen that, first, since there is a first gap between the first antenna radiator and the second antenna radiator in the first antenna, there is a coupling capacitance between the first antenna radiator and the second antenna radiator in the first gap, that is, the first antenna radiator and the second antenna radiator have a common aperture, thereby generating multiple resonant modes of the first antenna through the excitation of the first feed source. Secondly, the third antenna radiator in the second antenna generates multiple resonant modes of the second antenna through the excitation of the second feed source. Finally, the first antenna and the second antenna are connected through the antenna connector, thereby realizing the common radiator of the first antenna and the second antenna, thereby increasing the frequency band covered by the antenna assembly, ensuring that the antenna assembly supports the transmission requirements of multi-carrier aggregation, and improving the spatial multiplexing capability.

[0014] In a second aspect, an embodiment of the present application provides an electronic device, including an antenna assembly, the antenna assembly including a first antenna, the first antenna including a first antenna radiator and a second antenna radiator, and a first gap between the first antenna radiator and the second antenna radiator;

[0015] The first slit is located on a first side of the electronic device, a distance from the first slit to a second side of the electronic device is greater than 30 mm, and a distance from the first slit to a third side of the electronic device is greater than 30 mm, the second side is adjacent to one side of the first side, and the third side is adjacent to the other side of the first side;

[0016] The first antenna radiator includes a first coupling end and a first grounding end, and the second antenna radiator includes a second coupling end and a second grounding end. The first coupling end and the second coupling end are respectively located on both sides of the first slot and coupled through the first slot. The first grounding end has a first grounding point, and the second grounding end has a second grounding point. The first antenna radiator is connected to the first matching circuit through the first grounding point to form a grounding system.

[0017] A first feeding point is provided on the first antenna radiator, and the first feeding point is used to connect to a first feed source.

[0018] It can be seen that by limiting the first gap to the first side of the electronic device, and the distance from the first gap to the second side of the electronic device is greater than 30 mm, and the distance from the first gap to the third side of the electronic device is greater than 30 mm, when the user holds the second side and the third side of the electronic device, the user's hand will not easily touch or block the first gap on the first side, effectively avoiding the user's hand from blocking the first gap, ensuring the normal operation of the first antenna, and thus enabling the electronic device to which the antenna assembly is applied to have better communication effects.

[0019] In addition, since the antenna assembly of the embodiment of the present application is small in size and has fewer gaps, when the antenna assembly is used in an electronic device, it is beneficial to reduce the structural space occupied by the antenna assembly in the electronic device, reduce the difficulty of layout of the antenna assembly in the electronic device, improve the overall stacking of the electronic device, reduce the number of gaps opened on the electronic device due to the layout of the antenna assembly, and ensure the integrity of the overall appearance structure of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0021] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0022] Figure 2 This is a structural diagram of another electronic device provided in an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of electronic components integrated on a mainboard of an electronic device provided in an embodiment of the present application;

[0024] Figure 4 is a structural diagram of an antenna assembly provided in an embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of a matching network structure provided by an embodiment of the present application, which is a combination of capacitors and inductors;

[0026] Figure 6 is a structural diagram of a first antenna provided in an embodiment of the present application;

[0027] Figure 7 1 is a schematic diagram of the distribution of S parameters of a first antenna provided in an embodiment of the present application;

[0028] Figure 8 1 is a schematic structural diagram of a second antenna provided in an embodiment of the present application;

[0029] Figure 9 1 is a schematic diagram of the distribution of S parameters of a second antenna provided in an embodiment of the present application;

[0030] Figure 10 This is a structural diagram of another antenna assembly provided in an embodiment of the present application;

[0031] Figure 11 This is a structural diagram of another antenna assembly provided in an embodiment of the present application;

[0032] Figure 12 is a schematic diagram of the distribution of S parameters of a third antenna provided in an embodiment of the present application;

[0033] Figure 13 This is a structural diagram of another antenna assembly provided in an embodiment of the present application;

[0034] Figure 14 This is a structural diagram of another antenna assembly provided in an embodiment of the present application;

[0035] Figure 15 This is a structural diagram of the working process of another proximity sensor provided by an embodiment of the present application;

[0036] Figure 16 1 is a schematic diagram of the distribution of S parameters of each of the first antenna, the second antenna, and the third antenna provided in an embodiment of the present application;

[0037] Figure 17 1 is a schematic diagram showing the distribution of radiation efficiency and total efficiency of a first antenna, a second antenna, and a third antenna provided in an embodiment of the present application;

[0038] Figures 18 to 24 This is a structural diagram of another antenna assembly provided in an embodiment of the present application;

[0039] Figure 25 is a structural schematic diagram of a first antenna including a fifth antenna radiator provided in an embodiment of the present application;

[0040] Figure 26 is a schematic diagram of the distribution of S parameters of a first antenna including a fifth antenna radiator provided in an embodiment of the present application;

[0041] Figure 27 is a schematic diagram showing the distribution of radiation efficiency and total efficiency of a first antenna including a fifth antenna radiator provided in an embodiment of the present application;

[0042] Figures 28 to 39This is a schematic structural diagram of an antenna assembly for electronic equipment provided in an embodiment of the present application;

[0043] Figure 40 This is a distribution diagram of an antenna assembly, a proximity sensor, and a detection circuit applied to an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0045] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, software, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0046] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, an electrical connection, a detachable connection, an elastic connection, a direct connection, an indirect connection through an intermediate medium, an interval connection, etc., and there is no specific limitation on this.

[0047] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of such phrases in various locations in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive with other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments. The embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0048] In order to better understand the technical solutions of the embodiments of the present application, the concepts that may be involved in the embodiments of the present application are first introduced below.

[0049] The antenna assembly in the embodiment of the present application can be applied to an electronic device, which can be an electronic device with an antenna assembly or a communication module with an antenna assembly, and can be various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other devices connected to a wireless modem with an antenna assembly, and can also be various forms of stations (STA), access points (AP), user equipment (UE), mobile stations (MS), terminal devices (terminal devices), session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), personal computers (PCs), relay devices, computers supporting 802.11 protocols, terminal devices in 5G communication systems, and terminal devices in future evolved public land mobile networks (PLMNs), etc. For the convenience of explanation, the following description takes the electronic device as an example of a mobile terminal device, see Figure 1 and Figure 2 .

[0050] exist Figure 1 and Figure 2 In the embodiment, the electronic device 100 may include a display module 110, a frame assembly 120, a back cover assembly 130 and a main board 140. The frame assembly 120 is located between the display module 110 and the back cover assembly 130 and is arranged around the back cover assembly 130; the main board 140 is located in the receiving space formed by the display module 110, the frame assembly 120 and the back cover assembly 130. It should be noted that Figure 1 and Figure 2 The electronic device 100 shown may also include other modules and components, which are not specifically limited in the embodiment of the present application.

[0051] Specifically, the display module 110 can be used to display images and colors, and can be a liquid crystal display (LCD), an organic light emitting diode display (OLED), a thin film diode (TFD) display, or a thin film transistor (TFT) display.

[0052] Specifically, the frame assembly 120 can be made of metal, such as magnesium alloy, stainless steel, or other metal materials, and can serve as a part of the antenna assembly, that is, the frame assembly 120 can serve as a part of the antenna radiator.

[0053] Specifically, the rear cover assembly 130 can be a shell of a conductive material, a metal shell, such as a magnesium alloy, stainless steel or other metal, a shell of a non-conductive material, a plastic shell, a ceramic shell, a carbon fiber shell or a glass shell, a shell structure in which a conductive material and a non-conductive material cooperate with each other, or a shell structure in which a metal and a plastic cooperate with each other. Furthermore, the rear cover assembly 130 can be formed by injection molding a metal mid-plate, and then injection molding is performed on the metal mid-plate to form a shell structure of a plastic mid-plate. Furthermore, the rear cover assembly 130 can be formed by injection molding a magnesium alloy mid-plate, and then injection molding is performed on the magnesium alloy mid-plate to form a shell structure of a plastic mid-plate.

[0054] In the embodiment of the present application, the frame assembly 120 may have an antenna gap, and the antenna gap may be filled with plastic or other insulating media to ensure the overall integrity of the frame assembly 120.

[0055] Specifically, the display module 110, the frame assembly 120, and the back cover assembly 130 together form a housing space that can accommodate the motherboard 140, the antenna assembly, and other components or modules, such as a receiver, a camera module, an audio interface, a fingerprint recognition module, sensors, speakers, and a battery. Furthermore, the motherboard 140 can be integrated with various electronic components. Furthermore, the motherboard 140 can be a printed circuit board (PCB), a flexible printed circuit (FPC), or the like.

[0056] The following is an introduction to the electronic components integrated on the mainboard 140. Figure 3 . Figure 3 1 is a schematic diagram of electronic components integrated on a motherboard of an electronic device provided in an embodiment of the present application. The electronic components integrated on the motherboard 140 may include a processor 310, an antenna, a communication module 320, a power management module 330, and a memory 340.

[0057] In the embodiment of the present application, the communication function of the electronic device 100 can be implemented by an antenna, a communication module 320, a modem processor, and a baseband processor. The antenna in the electronic device 100 is used to transmit and receive electromagnetic wave signals. At the same time, the antenna in the electronic device 100 can be used to cover a single or multiple communication frequency bands. For example, the antenna can cover the 1000MHz to 3000MHz frequency band (i.e., the medium-high frequency MHB band in LTE or NR), the 3000MHz to 10000MHz frequency band (i.e., the ultra-high frequency UHB band in LTE or NR), the 3300MHz to 4120MHz frequency band (i.e., the N77 band in 5G), the 3300MHz to 3800MHz frequency band (i.e., the N78 band in 5G), the 4140MHz to 5000MHz frequency band (i.e., the N79 band in 5G), the 2.4GHz, 5GHz, or 6GHz frequency bands (i.e., the WiFi band), and the 1575MHz frequency band (i.e., the GPS-L1 band).

[0058] Specifically, the processor 310 may include a central processing unit (CPU), an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, a neural-network processing unit (NPU), etc. In addition, the processor 310 uses various interfaces and lines to connect various components or modules within the entire electronic device 100, and executes or executes instructions, programs, code sets or instruction sets stored in the memory 340, as well as calls data stored in the memory 340 to perform various functions of the electronic device 100 and process data.

[0059] Specifically, the communication module 320 can provide wireless communication solutions for electronic device 100, including 2G / 3G / 4G / 5G mobile communications, Bluetooth (BT), wireless local area networks (WLAN), wireless fidelity (WIFI), global navigation satellite systems (GNSS), near field communication (NFC), frequency modulation (FM), infrared (IR), and other wireless communication technologies. The communication module 320 can include at least one filter, a switch, a power amplifier, and a low-noise amplifier (LNA). The communication module 320 can receive electromagnetic waves via an antenna, filter, amplify, and perform other processing on the received electromagnetic waves, and transmit them to a modem processor for demodulation. The communication module 320 can also amplify the signals modulated by the modem processor and convert them into electromagnetic waves for radiation via the antenna. In some possible examples, at least some of the functional modules of the communication module 320 can be located in the processor 310. In some possible examples, at least some functional modules of the communication module 320 and at least some modules of the processor 310 may be set in the same device.

[0060] Specifically, the power management module 330 is used to connect the battery and the processor 310. The power management module 330 receives input from the battery to power the processor 310, the communication module 320, the memory 340, etc. The power management module 330 can also be used to monitor parameters such as battery capacity, battery cycle count, and battery health status (leakage, impedance), etc.

[0061] Specifically, the memory 340 may be used to store computer-executable program code, which may include instructions. Furthermore, the memory 340 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, a flash memory device, or a universal flash storage (UFS).

[0062] In combination with the above description, the antenna assembly of the embodiment of the present application is specifically introduced below.

[0063] See also Figure 4 , Figure 44 is a schematic diagram of the structure of an antenna assembly provided in an embodiment of the present application. The antenna assembly 400 can be applied to the electronic device 100. The antenna assembly 400 may include a first antenna, a second antenna, an antenna connector 431, a first matching circuit 432, and a second matching circuit 433.

[0064] The first antenna may include a first antenna radiator 411 and a second antenna radiator 412 , and a first gap 413 is between the first antenna radiator 411 and the second antenna radiator 412 ;

[0065] The second antenna may include a third antenna radiator 421;

[0066] The first antenna radiator 411 may include a first coupling end (C) and a first grounding end (B), and the second antenna radiator may include a second coupling end (D) and a second grounding end (E). The first coupling end (C) and the second coupling end (D) are respectively located on both sides of the first slot 413 and are coupled through the first slot 413. The first grounding end (B) has a first grounding point (GND1), and the second grounding end (E) has a second grounding point (GND2). The first antenna radiator 411 is connected to the first matching circuit 432 through the first grounding end (B) to ground the system.

[0067] The third antenna radiator 421 may include a first free end (G) and a third ground end (H). The third ground end (H) is provided with a third ground point (GND3). The third antenna radiator 421 is connected to the second matching circuit 433 via the third ground end (H) to ground the system. The antenna connector 431 is connected to the first ground end (B) and the third ground end (H).

[0068] The first antenna radiator 411 may be provided with a first feeding point (A), and the first feeding point (A) may be used to connect to a first feed source 414;

[0069] A second feeding point (F) is provided on the third antenna radiator 421 , and the second feeding point (F) can be used to connect to the second feed source 422 .

[0070] Specifically, the first antenna radiator 411 can be any one of a flexible printed circuit (FPC) antenna radiator, a laser direct structuring (LDS) antenna radiator, a print direct structuring (PDS) antenna radiator, or a metal branch. Similarly, the second antenna radiator 412 can be any one of an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, or a metal branch.

[0071] It should be noted that in the first antenna of antenna assembly 400, since first antenna radiator 411 and second antenna radiator 412 are spaced apart (i.e., there is a first gap 413 between them), and since first antenna radiator 411 and second antenna radiator 412 share a common aperture, coupling occurs in first gap 413, effectively connecting first antenna radiator 411 and second antenna radiator 412 via a capacitor. The capacitance of this capacitor is determined by the relative area of ​​the end face of one end (C) of first antenna radiator 411, the relative area of ​​the end face of one end (D) of second antenna radiator 412, the spacing between CD, and the dielectric filling first gap 413.

[0072] Furthermore, when antenna assembly 400 is operating, the excitation signal generated by first feed 414 can be coupled to second antenna radiator 412 via first antenna radiator 411. Therefore, second antenna radiator 412 can generate multiple resonant modes of the first antenna through coupling via first slot 413. As can be seen, when the first antenna transmits and receives electromagnetic wave signals, it can utilize not only first antenna radiator 411 but also second antenna radiator 412, thereby achieving the antenna communication performance of antenna assembly 400. Furthermore, by increasing the resonant modes of antenna assembly 400 through a single slot (the first slot), antenna assembly 400 can cover multiple frequency bands, ensuring that antenna assembly 400 supports the transmission requirements of multi-carrier aggregation and improving spatial multiplexing capabilities.

[0073] Specifically, the third antenna radiator 421 may be any one of an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, and a metal branch.

[0074] It should be noted that in the second antenna of antenna assembly 400, second feed 422 can be used to generate an excitation signal, which is applied to third antenna radiator 421, causing third antenna radiator 421 to radiate electromagnetic wave signals. Since the FH segment on third antenna radiator 421 is equivalent to a small inductor to ground, the FG segment on third antenna radiator 421 can generate a resonant mode through excitation by the second feed 422. Similarly, the GH segment on third antenna radiator 421 can generate a resonant mode through excitation by the second feed 422. Therefore, the third antenna radiator 421 can generate multiple resonant modes of the second antenna through excitation by the second feed 422.

[0075] It can be seen that by adding a second antenna to the antenna assembly 400, the resonant mode of the antenna assembly 400 is increased, and the antenna assembly 400 covers multiple frequency bands, ensuring that the antenna assembly 400 supports the transmission requirements of multi-carrier aggregation and improves the spatial multiplexing capability.

[0076] Specifically, the antenna connector 431 may be used to connect the first antenna and the second antenna.

[0077] It should be noted that in the embodiment of the present application, the first antenna and the second antenna are connected via an antenna connector 431, thereby realizing a common radiator for the first and second antennas. Therefore, when the first antenna is operating, it can not only utilize its own first antenna radiator 411 and second antenna radiator 412 to transmit and receive electromagnetic wave signals, but can also utilize the third antenna radiator 421 of the second antenna and the newly added antenna connector 431 to transmit and receive electromagnetic wave signals, thereby increasing the frequency band covered by the antenna assembly 400, ensuring that the antenna assembly 400 supports the transmission requirements of multi-carrier aggregation, and improving spatial multiplexing capabilities. Similarly, when the second antenna is operating, it can not only utilize its own third antenna radiator 421 to transmit and receive electromagnetic wave signals, but can also utilize the first antenna radiator 411 and second antenna radiator 412 of the first antenna, as well as the newly added antenna connector 431, thereby increasing the frequency band covered by the antenna assembly 400, ensuring that the antenna assembly 400 supports the transmission requirements of multi-carrier aggregation, and improving spatial multiplexing capabilities.

[0078] Furthermore, the first antenna and the second antenna are connected via antenna connector 431. In this embodiment of the present application, second antenna radiator 412 can be considered antenna unit 1, while first antenna radiator 411, third antenna radiator 421, and antenna connector 431 can be considered antenna unit 2. Therefore, first feed 414 is connected to the first feed point (A) of antenna unit 2, and second feed 422 is connected to the second feed point (F) of antenna unit 2. Antenna unit 2 is grounded at the first ground terminal (B) and the third ground terminal (H), respectively, through first matching circuit 432 and second matching circuit 433. This helps improve the radiation efficiency of antenna assembly 400.

[0079] Specifically, the antenna connector 431 may be made of the same material as the first antenna radiator 411 or the third antenna radiator 421 .

[0080] Specifically, the antenna connector 431 may be any one of an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, and a metal branch.

[0081] Specifically, the first antenna radiator 411 , the second antenna radiator 412 , the third antenna radiator 421 and the antenna connector 431 may be coplanar.

[0082] For example, if the first antenna radiator 411 , the second antenna radiator 412 , the third antenna radiator 421 and the antenna connector 431 are all metal patches, the first antenna radiator 411 , the second antenna radiator 412 , the third antenna radiator 421 and the antenna connector 431 may be coplanar.

[0083] Specifically, the first grounding point (GND1) is used to connect to the ground system; the second grounding point (GND1) is used to connect to the ground system; and the third grounding point (GND3) is used to connect to the ground system.

[0084] Specifically, the ground system can refer to a component that can serve as a ground pole, and the ground system is usually composed of a large piece of metal. Among them, the ground system of the present application can be the same, and the ground system can include one or more components. In the electronic device 100, the ground system 110 can include at least one of the grounding components in the display module 110, the frame assembly 120, the back cover assembly 130, and the grounding components in the mainboard 140.

[0085] For example, the frame assembly 120 constitutes a component of the ground electrode of the electronic device 100. When electronic devices in the electronic device 100 need to be grounded, the frame assembly 120 can be connected to the ground system.

[0086] Specifically, the first matching circuit 432 can be used for impedance matching and / or DC blocking matching. The first matching circuit 432 can include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, see Figure 5 , the first matching circuit 432 can be Figure 5 One of (a) to (h).

[0087] It should be noted that the first matching circuit 432 may include a DC blocking capacitor to achieve DC blocking matching.

[0088] Specifically, the second matching circuit 433 can be used for impedance matching and / or DC blocking matching. The second matching circuit 433 may include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, see Figure 5 , the second matching circuit 433 can be Figure 5 One of (a) to (h).

[0089] It should be noted that the second matching circuit 433 may include a DC blocking capacitor to achieve DC blocking matching.

[0090] Specifically, the first gap 413 may be filled with non-metallic insulating material.

[0091] In combination with the above description, this application will now provide a detailed description of the first antenna in the antenna assembly 400 .

[0092] See also Figure 6 , the first antenna includes a first antenna radiator 411 and a second antenna radiator 412.

[0093] It should be noted that in the first antenna of the antenna assembly 400, the first feed source 414 can be used to generate an excitation signal, and the excitation signal is applied to the first antenna radiator 411, so that the first antenna radiator 411 radiates an electromagnetic wave signal. Since the AB segment on the first antenna radiator 411 can be equivalent to a small inductor to ground, the AC segment on the first antenna radiator 411 can generate a resonant mode through the excitation of the first feed source 414. Similarly, the CB segment on the first antenna radiator 411 can generate a resonant mode through the excitation of the first feed source 414. It can be seen that the first antenna radiator 411 can be used to generate multiple resonant modes of the first antenna through the excitation of the first feed source 414.

[0094] Specifically, the first antenna radiator 411 may be used to generate low-frequency and high-frequency resonance modes, and the second antenna radiator 412 may be used to generate a medium-frequency resonance mode.

[0095] Specifically, the first antenna can be used to cover at least one of the following frequency bands: LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, and WIFI 2.4GHz band.

[0096] It can be seen that the first antenna of the embodiment of the present application can cover the LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band, etc., thereby meeting the antenna communication performance while realizing that the first antenna of the antenna assembly covers multiple frequency bands and supports the transmission requirements of multi-carrier aggregation.

[0097] Specifically, the length of the first antenna radiator 411 may be greater than the length of the second antenna radiator 412 .

[0098] Specifically, the length from the first feeding point (A) to the first coupling end (C) (the length of the AC segment) may be greater than the length from the first feeding point (A) to the first ground end (B) (the length of the AB segment).

[0099] It should be noted that in the embodiment of the present application, the first antenna can support different frequency bands by setting the first feeding point (A) at different positions on the first antenna radiator 411. The closer the first feeding point (A) is to the first ground terminal (B) on the first antenna radiator 412, that is, the longer the AC segment is, the longer the AB segment is, thereby improving the radiation efficiency of the first antenna radiator 411.

[0100] Specifically, the first antenna can be used to support the first resonant mode, the second resonant mode, the third resonant mode, and the fourth resonant mode; wherein the length from the first ground end to the first coupling end is 1 / 8 to 1 / 4 times the wavelength corresponding to the center frequency of the first resonant mode; the length from the second ground end to the second coupling end is 1 / 4 times the wavelength corresponding to the center frequency of the second resonant mode; the length from the first feeding point to the first coupling end is 1 / 4 times the wavelength corresponding to the center frequency of the third resonant mode; and the length from the first ground end to the first coupling end is 3 / 4 times the wavelength corresponding to the center frequency of the fourth resonant mode.

[0101] Furthermore, the center frequency of the first resonant mode can be a frequency between 1.5 GHz and 2.0 GHz; the center frequency of the second resonant mode can be a frequency between 2.5 GHz and 3.0 GHz; the center frequency of the third resonant mode can be a frequency between 3.0 GHz and 4.0 GHz; and the center frequency of the fourth resonant mode can be a frequency between 4.5 GHz and 5.0 GHz.

[0102] It should be noted that the center frequency of a resonant mode can be adapted to the length of the antenna radiator that generates that resonant mode. Therefore, the length from the first ground terminal (B) to the first coupling terminal (C) (the length of the BC segment), the length from the second ground terminal (E) to the second coupling terminal (D) (the length of the DE segment), and the length from the first feed point (A) to the first coupling terminal (C) (the length of the AC segment) can be set based on the center frequency of the resonant mode they generate.

[0103] For example, see Figure 7 , Figure 7 A schematic diagram of the distribution of the scattering (S) parameter of the first antenna is provided, wherein the parameter S1,1 represents the reflection loss of the first antenna. Figure 6 Marker 1 in the diagram indicates that the center frequency of the first resonant mode is 1.7767 GHz, and its corresponding S-parameter (S1,1) is -4.5137 dB. Therefore, the length from the first ground terminal (B) to the first coupling terminal (C) is approximately 20 mm to 45 mm. Because the transmission speed of electromagnetic waves is affected by various transmission media, in actual projects, the distance from the first ground terminal (B) to the first coupling terminal (C) should be less than the above value. The same principle applies as follows.

[0104] Figure 7 The mark 2 in the figure indicates that the center frequency of the second resonant mode is 2.5978 GHz, and its corresponding S parameter (S1,1) is -13.398 dB. Therefore, the length from the second ground terminal (E) to the second coupling terminal (D) can be 28 mm.

[0105] Figure 7The mark 3 in the figure indicates that the center frequency of the third resonant mode is 3.4879 GHz, and its corresponding S parameter (S1,1) is -7.1213 dB. Therefore, the length from the first feeding point (A) to the first coupling end (C) is about 21 mm.

[0106] Figure 7 The mark 4 in the figure indicates that the center frequency of the fourth resonant mode is 4.9369 GHz, and its corresponding S parameter (S1,1) is -16.755 dB. Therefore, the distance from the first ground terminal (B) to the first coupling terminal (C) is approximately 45 mm.

[0107] In combination with the above description, the second antenna in the antenna assembly 400 will be specifically described below in the embodiment of the present application.

[0108] See also Figure 8 , the second antenna includes a third antenna radiator 421.

[0109] It should be noted that in the second antenna of antenna assembly 400, the FG segment on the third antenna radiator 421 can generate a resonant mode through excitation by the second feed source 422. Similarly, the GH segment on the third antenna radiator 421 can generate a resonant mode through excitation by the second feed source 422. Therefore, the third antenna radiator 421 can be used to generate multiple resonant modes of the second antenna through excitation by the second feed source 422. It can be seen that by adding the second antenna to antenna assembly 400, the resonant modes of antenna assembly 400 are increased, enabling antenna assembly 400 to cover multiple frequency bands and ensuring that antenna assembly 400 supports the transmission requirements of multi-carrier aggregation.

[0110] Specifically, the second antenna can be used to cover at least one of the following frequency bands: LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band, and GPS-L1 band.

[0111] It can be seen that the second antenna of the embodiment of the present application can cover the LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band, GPS-L1 band, etc., thereby meeting the antenna communication performance while further realizing that the antenna assembly 400 covers multiple frequency bands and ensuring that the antenna assembly 400 supports the transmission requirements of multi-carrier aggregation.

[0112] Specifically, the length from the second feeding point (F) to the first free end (G) may be greater than the length from the second feeding point (F) to the third ground end (H).

[0113] It should be noted that in the embodiment of the present application, different frequency bands can be covered by the second antenna by setting the second feeding point (F) at different positions on the third antenna radiator 421. The closer the second feeding point (F) is to the third ground terminal (H) on the third antenna radiator 421, that is, the longer the length from the second feeding point (F) to the first free end (G) is than the length from the second feeding point (F) to the third ground terminal (H), thereby improving the radiation efficiency of the third antenna radiator 422.

[0114] Specifically, the second antenna can be used to support the fifth resonant mode and the sixth resonant mode; wherein, the length from the third ground end (H) to the first free end (G) can be 1 / 4 times the wavelength corresponding to the center frequency of the fifth resonant mode; the length from the second feeding point (F) to the first free end (G) can be 1 / 4 times the wavelength corresponding to the center frequency of the sixth resonant mode.

[0115] Furthermore, the center frequency of the fifth resonance mode may be a frequency between 1.5 GHz and 2.0 GHz; and the center frequency of the sixth resonance mode may be a frequency between 2.0 GHz and 3.0 GHz.

[0116] For example, see Figure 9 , Figure 9 A schematic diagram of the distribution of the S parameters of the second antenna is provided, wherein the curve S2,2 represents the reflection loss of the second antenna. Figure 7 Mark 1 in the figure indicates that the center frequency of the fifth resonant mode can be 1.5697 GHz, and its corresponding S parameter (S2,2) is -7.3678 dB. Therefore, the length from the third ground terminal (H) to the first free terminal (G) is approximately 47.7 mm. Because the transmission speed of electromagnetic waves is affected by various transmission media, in actual engineering, the length from the third ground terminal (H) to the first free terminal (G) should be less than the above value. The same principle applies as follows.

[0117] Figure 9 The mark 2 in the figure indicates that the center frequency of the sixth resonant mode is 2.515 GHz, and its corresponding S parameter (S2,2) is -7.3044 dB. Therefore, the length from the second feeding point (F) to the first free end (G) is approximately 29.8 mm.

[0118] In combination with the above description, the following embodiment of the present application will specifically illustrate that the antenna assembly 400 includes a fourth antenna radiator, a third matching circuit and a fourth matching circuit.

[0119] See also Figure 10The antenna assembly 400 further includes: a third matching circuit 441 and a fourth matching circuit 442; the third matching circuit 441 is connected in series between the first feeding point (A) and the first feed source 414; the fourth matching circuit 442 is connected in series between the second feeding point (F) and the second feed source 422.

[0120] Specifically, the third matching circuit 441 can be used for impedance matching and / or DC blocking matching. The third matching circuit 441 can include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, see Figure 5 , the third matching circuit 441 can be Figure 5 One of (a) to (h).

[0121] It should be noted that the third matching circuit 441 may include a DC blocking capacitor to achieve DC blocking matching.

[0122] Specifically, the fourth matching circuit 442 can be used for impedance matching and / or DC blocking matching. The fourth matching circuit 442 can include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, see Figure 5 , the fourth matching circuit 442 can be Figure 5 One of (a) to (h).

[0123] It should be noted that the fourth matching circuit 442 may include a DC blocking capacitor to achieve DC blocking matching.

[0124] In combination with the above description, the embodiment of the present application will be described in detail below that the antenna assembly 400 also includes a third antenna.

[0125] See also Figure 11 The antenna assembly 400 further includes: a third antenna, the third antenna including a fourth antenna radiator 451; a second gap 452 is provided between the fourth antenna radiator 451 and the third antenna radiator 421; the fourth antenna radiator includes a second free end (I) and a fourth ground end (J), the first free end (G) and the second free end (I) are respectively located on both sides of the second gap (452) and are coupled through the second gap (452), and the fourth ground end (J) is provided with a fourth ground point (GND1); a third feeding point (K) is provided on the fourth antenna radiator 451, and the third feeding point is used to connect a third feed source.

[0126] Specifically, the fourth grounding point (GND1) is used to connect to the ground system.

[0127] It should be noted that in the third antenna of antenna assembly 400, the third feed source 453 can be used to generate an excitation signal, which is then applied to the fourth antenna radiator 451, causing it to radiate electromagnetic wave signals. Because the connection between the third feed point (K) and the fourth ground terminal (J) on the fourth antenna radiator 451 is equivalent to a small inductor to ground, the excitation from the third feed source 453 can generate a resonant mode from the third feed point (K) to the second free end (I). Similarly, the excitation from the third feed source 453 can generate a resonant mode from the second free end (I) to the fourth ground terminal (J). Thus, the excitation from the third feed source 453 can generate multiple resonant modes from the fourth antenna radiator 451. By adding the third antenna to antenna assembly 400, the resonant modes of antenna assembly 400 are increased, further enabling antenna assembly 400 to cover multiple frequency bands and ensuring that antenna assembly 400 supports the transmission requirements of multi-carrier aggregation.

[0128] Secondly, because third antenna radiator 421 and fourth antenna radiator 451 are spaced apart (i.e., second gap 445 exists between them), and fourth antenna radiator 451 and antenna unit 2 share a common aperture, second gap 445 creates coupling, effectively connecting third antenna radiator 421 and fourth antenna radiator 451 via a capacitor. When the third antenna is operating, it can not only utilize its own fourth antenna radiator 451 to transmit and receive electromagnetic wave signals, but also utilize antenna units 1 and 2 to transmit and receive electromagnetic wave signals. This further increases the frequency band covered by antenna assembly 400, ensuring that antenna assembly 400 supports the transmission requirements of multi-carrier aggregation and improving spatial multiplexing capabilities.

[0129] Finally, by spacing third antenna radiator 421 and fourth antenna radiator 451, the embodiment of the present application can regard fourth antenna radiator 442 as antenna unit 3. Therefore, antenna unit 1 is coupled with antenna unit 2, and antenna unit 2 is coupled with antenna unit 3, thereby increasing the frequency band covered by antenna assembly 400, ensuring that antenna assembly 400 supports the transmission requirements of multi-carrier aggregation, and improving spatial multiplexing capabilities.

[0130] Specifically, the first antenna radiator 411 , the second antenna radiator 412 , the third antenna radiator 421 , the antenna connector 431 , and the fourth antenna radiator 451 may be coplanar.

[0131] For example, if the first antenna radiator 411, the second antenna radiator 412, the third antenna radiator 421, the antenna connector 431 and the fourth antenna radiator 451 are all metal patches, etc., then the first antenna radiator 411, the second antenna radiator 412, the third antenna radiator 421, the antenna connector 431 and the fourth antenna radiator 451 can be coplanar.

[0132] Specifically, the fourth antenna radiator 451 may be any one of an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, and a metal branch.

[0133] Specifically, the third antenna can be used to support at least one of the following frequency bands: N78 band, N79 band, and WIFI 5GHz band.

[0134] It can be seen that the third antenna of the embodiment of the present application can cover the N78 frequency band, the N79 frequency band, the WIFI 5GHz frequency band, etc., thereby further realizing that the antenna component 400 covers multiple frequency bands while meeting the antenna communication performance, and ensuring that the antenna component 400 supports the transmission requirements of multi-carrier aggregation.

[0135] Specifically, the length from the second free end (I) to the third feeding point (K) may be shorter than the length from the third feeding point (K) to the fourth ground end (J).

[0136] It should be noted that in the embodiment of the present application, the third feeding point (K) can be set at different positions on the fourth antenna radiator 451 to achieve different frequency band coverage by the third antenna. The further the third feeding point (K) is located on the fourth antenna radiator 451 from the fourth ground terminal (J), that is, the shorter the length from the second free end (I) to the third feeding point (K) than the length from the third feeding point (K) to the fourth ground terminal (J), thereby improving the radiation efficiency of the fourth antenna radiator 451.

[0137] Specifically, the third antenna is used to support the seventh resonant mode, the eighth resonant mode, the ninth resonant mode, and the tenth resonant mode; wherein, the current distribution of the seventh resonant mode is from the third feeding point to the third ground terminal; the length from the fourth ground terminal to the second free end is 1 / 8 to 1 / 4 times the wavelength corresponding to the center frequency of the eighth resonant mode; the length from the third feeding point to the second free end is 1 / 4 times the wavelength corresponding to the center frequency of the ninth resonant mode; and the length from the third ground terminal to the first free end is 3 / 4 times the wavelength corresponding to the center frequency of the tenth resonant mode.

[0138] Furthermore, the center frequency of the seventh resonance mode can be a frequency between 3.0 GHz and 3.5 GHz; the center frequency of the eighth resonance mode can be a frequency between 3.5 GHz and 4.0 GHz; the center frequency of the ninth resonance mode can be a frequency between 5.0 GHz and 6.0 GHz; and the center frequency of the tenth resonance mode can be a frequency between 6.0 GHz and 7.0 GHz.

[0139] In conjunction with the above description, please refer to Figure 12 , Figure 12 A schematic diagram of the distribution of S parameters of a third antenna is provided, wherein curve S3,3 represents the reflection loss of the third antenna. Figure 12 Mark 2 in the figure indicates that the center frequency of the eighth resonant mode is 3.8669 GHz, and its corresponding S parameter (S3,3) is -5.1333 dB. Therefore, the length from the second free end (I) to the fourth ground end (J) is approximately 9.7 mm to 19.4 mm. Because the transmission speed of electromagnetic waves is affected by various transmission media, in actual engineering, the length from the second free end (I) to the fourth ground end (J) is smaller than the above value. The same principle applies as follows. Figure 12 Mark 3 in the figure indicates that the center frequency of the ninth resonant mode is 5.6098 GHz, and its corresponding S parameter (S2,2) is -10.755 dB. Therefore, the length from the second free end (I) to the third feeding point (K) is approximately 13.37 mm.

[0140] In combination with the above description, the embodiment of the present application will be described below in detail that the antenna assembly 400 also includes a fifth matching circuit.

[0141] See also Figure 13 , the antenna assembly 400 further includes: a fifth matching circuit 443 .

[0142] Specifically, the fifth matching circuit 443 can be used for impedance matching and / or DC isolation matching. The fifth matching circuit 443 may include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, see Figure 5 , the fifth matching circuit 443 can be Figure 5 One of (a) to (h).

[0143] It should be noted that the fifth matching circuit 443 may include a DC blocking capacitor to achieve DC blocking matching.

[0144] In combination with the above description, in order to enable the antenna assembly 400 to have the ability to detect the specific absorption rate (SAR) of electromagnetic waves, the embodiment of the present application needs to consider whether the first matching circuit 432, the second matching circuit 433, the third matching circuit 441, the fourth matching circuit 442 and the fifth matching circuit 443 include DC blocking devices, which may include DC blocking capacitors or DC blocking circuits.

[0145] See also Figure 14If the first matching circuit 432, the second matching circuit 433, the third matching circuit 441, the fourth matching circuit 442 and the fifth matching circuit 443 do not include a DC blocking device, the antenna assembly 400 may further include: a first capacitor (C1), a second capacitor (C2), a third capacitor (C3), a fourth capacitor (C4), a fifth capacitor (C5), a sixth capacitor (C6) and a seventh capacitor (C7); wherein the first capacitor is connected in series between the first antenna radiator 411 and the ground system connected to the first ground point; the second capacitor is connected in series between the third antenna radiator 421 and the ground system connected to the third ground point; the third capacitor is connected in series between the first feeding point (A) and the first feed source 414; the fourth capacitor is connected in series between the second feeding point (F) and the second feed source 422; the fifth capacitor is connected in series between the ground system connected to the second antenna radiator 412 and the second ground point; and the sixth capacitor is connected in series between the third feeding point (K) and the third feed source 453.

[0146] Among them, the capacitance values ​​of the first capacitor (C1), the second capacitor (C2), the third capacitor (C3), the fourth capacitor (C4), the fifth capacitor (C5), the sixth capacitor (C6), and the seventh capacitor (C7) can be 22pF, so that the impact on the antenna assembly 400 is relatively small.

[0147] It should be noted that when the antenna assembly 400 is applied to an electronic device, the proximity sensor in the electronic device can use a suspended metal body to sense the capacitance signal changes caused by the user using the electronic device, thereby determining whether the user is close to or away from the electronic device.

[0148] For example, in Figure 15 In (a), proximity sensor 1510 includes a printed circuit board (PCB) and an overlay board, and proximity sensor 1510 itself can generate a capacitance signal (C1). When user 1520 approaches proximity sensor 1510, proximity sensor 1510 can sense the change in capacitance signal (C2) caused by user 1520. Therefore, the embodiment of the present application adds a first capacitor (C1), a second capacitor (C2), a third capacitor (C3), a fourth capacitor (C4), a fifth capacitor (C5), a sixth capacitor (C6), and a seventh capacitor (C7) with DC isolation function to antenna assembly 400, thereby suspending antenna assembly 400. This allows antenna assembly 400 to be used as a metal body suspended relative to the DC circuit in the feed source and / or ground system, thereby enabling antenna assembly 400 to have SAR detection capabilities.

[0149] Furthermore, it is understood that if a portion of the first matching circuit 432, the second matching circuit 433, the third matching circuit 441, the fourth matching circuit 442, and the fifth matching circuit 443 includes a DC blocking device, then no DC blocking device is required for that portion of the matching circuit. For example, if the first matching circuit 432 includes a DC blocking device (i.e., the first matching circuit 432 has a DC blocking function), the antenna assembly 400 does not need to include the first capacitor (C1) and the corresponding connection relationship, and this is not specifically limited.

[0150] In combination with the above description, when the antenna assembly 400 includes a first antenna, a second antenna, and a third antenna, the embodiment of the present application further analyzes the impedance bandwidth, isolation, radiation efficiency, and total efficiency between the antennas in the antenna assembly 400.

[0151] See also Figure 16 , Figure 16 A schematic diagram of the S-parameter distributions of the first, second, and third antennas is provided. Curve 1611 represents the S1,1 parameter of the first antenna (parameter S1,1 represents the reflection loss of the first antenna), curve 1621 represents the S2,1 parameter of the first antenna (parameter S2,1 represents the feed loss from the second antenna to the first antenna), curve 1622 represents the S2,2 parameter of the second antenna (parameter S2,2 represents the reflection loss of the second antenna), curve 1631 represents the S3,1 parameter of the third antenna (parameter S3,1 represents the feed loss from the third antenna to the first antenna), curve 1632 represents the S3,2 parameter of the third antenna (parameter S3,2 represents the feed loss from the third antenna to the second antenna), and curve 1633 represents the S3,3 parameter of the third antenna (parameter S3,3 represents the reflection loss of the third antenna). It can be seen that in antenna assembly 400, the first, second, and third antennas each have good impedance bandwidth and good isolation between each other.

[0152] See also Figure 17 , Figure 17 A schematic diagram showing the distribution of the radiation efficiency and total efficiency of the first, second, and third antennas is provided. Curve 1711 represents the radiation efficiency of the first antenna, curve 1712 represents the radiation efficiency of the second antenna, and curve 1713 represents the radiation efficiency of the third antenna. Curve 1721 represents the total efficiency of the first antenna, curve 1722 represents the total efficiency of the second antenna, and curve 1723 represents the total efficiency of the third antenna. This shows that each antenna in antenna assembly 400 has a good efficiency bandwidth.

[0153] In combination with the above description, the embodiment of the present application will be described below in detail in which the antenna assembly 400 further includes at least one sixth matching circuit.

[0154] See also Figure 18 and Figure 19 The antenna assembly 400 may further include: at least one sixth matching circuit 461, one end of the sixth matching circuit 461 is connected to the fifth ground terminal (L) on the antenna connector 431, the fifth ground terminal (L) is provided with a fifth ground point (GND5), the fifth ground terminal (L) is located between the first ground terminal (B) and the third ground terminal (H), and the other end of the sixth matching circuit 461 is connected to the ground system connected to the fifth ground point.

[0155] It should be noted that the addition of a grounded sixth matching circuit 461 to antenna assembly 400 (antenna element 2) improves the isolation between the antennas in antenna assembly 400 and effectively filters out inefficient resonant modes on antenna element 2. Furthermore, the greater the number of sixth matching circuits 461, the better the isolation between the antennas in antenna assembly 400 and the greater the filtering out of inefficient resonant modes on antenna element 2.

[0156] Specifically, the sixth matching circuit 461 can be used for impedance matching and / or DC blocking matching. The sixth matching circuit 461 can include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, see Figure 5 , the sixth matching circuit 461 can be Figure 5 One of (a) to (h).

[0157] It should be noted that the sixth matching circuit 461 may include a DC blocking capacitor to achieve DC blocking matching.

[0158] In light of the above description, to enable SAR detection capabilities for antenna assembly 400 including the sixth matching circuit, if the sixth matching circuit does not include a DC blocking device, antenna assembly 400 further includes an eighth capacitor (C8), which is connected in series between antenna connector 431 and the ground system connected to the fifth ground point. The capacitance of eighth capacitor (C8) can be 22pF, minimizing its impact on antenna assembly 400. Furthermore, those skilled in the art will readily appreciate the specific connection relationship based on the above description, and this will not be elaborated upon here.

[0159] In combination with the above description, the antenna assembly 400 including the fifth antenna radiator is specifically described below in the embodiment of the present application.

[0160] See also Figure 20 、 Figure 21 、 Figure 22 、 Figure 23 and Figure 24 The antenna assembly 400 may further include: a fifth antenna radiator 471 , one end (M) of the fifth antenna radiator being connected to the first feed source 414 , and the other end (N) of the fifth antenna radiator being an open end.

[0161] It should be noted that the embodiment of the present application increases the resonant mode of the first antenna by adding a fifth antenna radiator 471 in the first antenna, thereby ensuring that the debugging of the antenna component is more flexible, improving the antenna efficiency of the antenna component, and further realizing that the antenna component 400 covers multiple frequency bands, ensuring that the antenna component 400 supports the transmission requirements of multi-carrier aggregation, and improving the spatial multiplexing capability.

[0162] In addition, in the embodiment of the present application, the fifth antenna radiator 471 may be regarded as the antenna unit 4.

[0163] The connection relationship among the fifth antenna radiator 471, the third matching circuit 441 and the first antenna is exemplarily described below.

[0164] For example, see Figure 25 The third matching circuit 441 includes a ninth capacitor (C9), a tenth capacitor (C10), an eleventh capacitor (C11), a twelfth capacitor (C12), a first inductor (L1), and a second inductor (L2). The capacitance of the ninth capacitor is 1.0pF, the capacitance of the tenth capacitor is 0.8pF, the capacitance of the eleventh capacitor is 0.5pF, and the capacitance of the twelfth capacitor is 0.8pF. The inductance of the first inductor is 1.0nH, and the inductance of the second inductor is 15nH. Because the fifth antenna radiator 4711 is connected between 0.5pF and 0.8pF, this capacitor connection method has little impact on other frequency bands covered by the antenna assembly 400. For other frequency bands, it is equivalent to connecting 0.35pF in parallel (0.5pF in series with 0.8pF is equivalent to 0.35pF).

[0165] Specifically, the fifth antenna radiator 471 may be an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, or a metal branch.

[0166] Specifically, the fifth antenna radiator 471 can be used to cover at least one of the following frequency bands: LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, and WIFI 2.4 GHz band.

[0167] Specifically, the fifth antenna radiator 471 can be used to support the eleventh resonant mode; the length of the fifth antenna radiator 471 (the length of the MN segment) can be 1 / 8 to 1 / 2 times the wavelength corresponding to the center frequency of the eleventh resonant mode.

[0168] The center frequency of the eleventh resonance mode may be a frequency between 4.5 GHz and 5.5 GHz.

[0169] In conjunction with the above description, please refer to Figure 26 , Figure 26 A schematic diagram of the distribution of S parameters of a first antenna including a fifth antenna radiator is provided, wherein a curve S1,1 represents the reflection loss of the first antenna. Figure 26 The mark 4 in the figure indicates that the center frequency of the eleventh resonant mode is 4.9793 GHz, and its corresponding S parameter (S1,1) is -13.045 dB. Therefore, the length of the fifth antenna radiator 471 (the length of the MN segment) is approximately one of 7.53 mm to 30.12 mm. Since the transmission speed of electromagnetic waves is affected by various transmission media, the length of the fifth antenna radiator 471 is smaller than the above value in actual engineering. In addition, compared to Figure 5 As shown, the fifth antenna radiator added to the first antenna has affected Figure 7 The frequencies covered by the first antenna.

[0170] In combination with the above description, when the antenna assembly 400 includes the fifth antenna radiator 471 , the embodiment of the present application further analyzes the radiation efficiency and total efficiency of the first antenna.

[0171] See also Figure 27 , Figure 27 A schematic diagram showing the distribution of the radiation efficiency and total efficiency of the first antenna is provided. Curve 2711 represents the radiation efficiency of the first antenna, and curve 2712 represents the total efficiency of the first antenna. This indicates that adding the fifth antenna radiator 471 to the first antenna improves the antenna efficiency of the antenna assembly and ensures a good efficiency bandwidth for the antenna assembly.

[0172] In combination with the above description, the antenna assembly is used to cover at least one of the following frequency bands: LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band, WIFI 5GHz band, and GPS-L1 band.

[0173] In summary, it can be seen that the first, second, and third antennas of the antenna assembly 400 of the embodiment of the present application have a common aperture, and each antenna has good isolation, impedance bandwidth, radiation efficiency, and spatial multiplexing capability. Furthermore, the antenna assembly 400 can cover multiple frequency bands, support the transmission requirements of multi-carrier aggregation, and has SAR detection capabilities.

[0174] In combination with the above description, an embodiment of the present application further provides an electronic device, which may be the above electronic device 100, and may include an antenna assembly, which may be the above antenna assembly 400.

[0175] The antenna assembly may include a first antenna, the first antenna may include a first antenna radiator and a second antenna radiator, and a first gap exists between the first antenna radiator and the second antenna radiator;

[0176] The first slit is located on a first side of the electronic device, a distance from the first slit to a second side of the electronic device is greater than 30 mm, and a distance from the first slit to a third side of the electronic device is greater than 30 mm, the second side is adjacent to one side of the first side, and the third side is adjacent to the other side of the first side;

[0177] The first antenna radiator includes a first coupling end and a first grounding end, and the second antenna radiator includes a second coupling end and a second grounding end, the first coupling end and the second coupling end are respectively located on both sides of the first slot and coupled through the first slot, the first grounding end is provided with a first grounding point, the second grounding end is provided with a second grounding point, and the first antenna radiator is grounded to the system through the first grounding end;

[0178] A first feeding point is provided on the first antenna radiator, and the first feeding point is used to connect to a first feed source.

[0179] It should be noted that, firstly, the description of each embodiment in this application has its own focus. Therefore, for parts not described in detail in the embodiment on the electronic device side, reference can be made to the relevant description in the embodiment on the antenna assembly 400 side, and the same technical effects can be achieved, so this will not be repeated.

[0180] Secondly, in the first antenna of the antenna assembly, since the first and second antenna radiators are spaced apart (i.e., a first gap exists between them), and since they share a common aperture, coupling occurs through the first gap, effectively connecting the first and second antenna radiators via a capacitor. The capacitance of this capacitor is determined by the relative areas of the end faces of the first and second antenna radiators, the spacing between the first gaps, and the dielectric filling the first gaps. Furthermore, when the first antenna is operating, the excitation signal generated by the first feed source can couple to the second antenna radiator via the first antenna radiator. Therefore, the second antenna radiator can generate multiple resonant modes of the first antenna through coupling via the first gap. Therefore, when the first antenna transmits and receives electromagnetic wave signals, it can utilize both the first and second antenna radiators, thereby maintaining the antenna communication performance of the antenna assembly. Furthermore, by increasing the number of resonant modes of the antenna assembly through a single gap (the first gap), the antenna assembly covers multiple frequency bands, ensuring support for multi-carrier aggregation transmission requirements and improving spatial multiplexing capabilities.

[0181] Again, the electronic device has a first side, a second side, and a third side, wherein the second side is adjacent to one side of the first side, and the third side is adjacent to the other side of the first side.

[0182] For example, in Figure 1 In the embodiment, the electronic device 100 has left and right long sides and upper and lower short sides, so the first side may be a long side of the electronic device 100, the second side may be a short side of the electronic device 100, and the third side may be another short side of the electronic device 100.

[0183] Finally, in the embodiment of the present application, by limiting the first gap to the first side of the electronic device, and the distance from the first gap to the second side of the electronic device is greater than 30 mm, and the distance from the first gap to the third side of the electronic device is greater than 30 mm, when the user holds the second and third sides of the electronic device, the user's hand will not easily touch or block the first gap on the first side, effectively preventing the user's hand from blocking the first gap, ensuring the normal operation of the first antenna, and thus enabling the electronic device to which the above-mentioned antenna assembly 400 is applied to have better communication effects.

[0184] In addition, since the antenna assembly of the embodiment of the present application is small in size and has fewer gaps, when the antenna assembly is used in an electronic device, it is beneficial to reduce the structural space occupied by the antenna assembly in the electronic device, reduce the difficulty of layout of the antenna assembly in the electronic device, improve the overall stacking of the electronic device, reduce the number of gaps opened on the electronic device due to the layout of the antenna assembly, and ensure the integrity of the overall appearance structure of the electronic device.

[0185] For example, when the user Figure 1 When the electronic device shown is in landscape mode, playing games or watching videos, that is, when the user grasps the electronic device by its two short sides, the first slit should be positioned away from the user's hand to ensure proper operation of the first antenna in the antenna assembly. Therefore, the distance from the first slit on the long side of the electronic device to the top of the electronic device (the upper short side of the electronic device) is greater than 30 mm, and the distance from the first slit to the bottom of the electronic device (the lower short side of the electronic device) is greater than 30 mm, thereby ensuring optimal operation of the first antenna.

[0186] Specifically, the length of the first side is greater than 60 mm.

[0187] Specifically, the antenna assembly can be located within a receiving space formed by the display module 110 , the frame assembly 120 and the back cover assembly 130 of the electronic device 100 .

[0188] Specifically, the first antenna, the second antenna or the third antenna can be Figure 3 Antenna in.

[0189] Specifically, the first feed source may be provided on the mainboard 140 in the electronic device 100. Meanwhile, the communication function of the electronic device 100 is ensured by the feeding mode of the first feed source.

[0190] Specifically, the first antenna radiator can be a different metal structure (such as a metal body or metal arm) on the electronic device 100. For example, a section of the frame assembly 120, a metal patch printed on the inside of the back cover assembly 130, a metal patch printed on the inside of the frame assembly 120, a flexible circuit provided on the mainboard 140, or a metal patch printed on the mainboard 140. Similarly, the second antenna radiator can be a different metal structure (such as a metal body or metal arm) on the electronic device 100, without specific limitation.

[0191] Specifically, the first antenna radiator can be used to generate low-frequency and high-frequency resonance modes, and the second antenna radiator can be used to generate a medium-frequency resonance mode.

[0192] Specifically, the first antenna can be used to cover at least one of the following frequency bands: LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, and WIFI 2.4GHz band.

[0193] It can be seen that the first antenna of the embodiment of the present application can cover the LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band, etc., thereby meeting the antenna communication performance while realizing that the first antenna of the antenna assembly covers multiple frequency bands and supports the transmission requirements of multi-carrier aggregation.

[0194] Specifically, the length of the first antenna radiator may be greater than the length of the second antenna radiator.

[0195] Specifically, the length from the first feeding point to the first coupling end may be greater than the length from the first feeding point to the first ground end.

[0196] It should be noted that in the embodiments of the present application, the first antenna can support different frequency bands by setting the first feeding point at different positions on the first antenna radiator. The closer the first feeding point is to the first ground terminal on the first antenna radiator, the higher the radiation efficiency of the first antenna radiator.

[0197] Specifically, the first antenna can be used to support the first resonant mode, the second resonant mode, the third resonant mode, and the fourth resonant mode; wherein the length from the first ground end to the first coupling end is 1 / 8 to 1 / 4 times the wavelength corresponding to the center frequency of the first resonant mode; the length from the second ground end to the second coupling end is 1 / 4 times the wavelength corresponding to the center frequency of the second resonant mode; the length from the first feeding point to the first coupling end is 1 / 4 times the wavelength corresponding to the center frequency of the third resonant mode; and the length from the first ground end to the first coupling end is 3 / 4 times the wavelength corresponding to the center frequency of the fourth resonant mode.

[0198] Furthermore, the center frequency of the first resonant mode can be a frequency between 1.5 GHz and 2.0 GHz; the center frequency of the second resonant mode can be a frequency between 2.5 GHz and 3.0 GHz; the center frequency of the third resonant mode can be a frequency between 3.0 GHz and 4.0 GHz; and the center frequency of the fourth resonant mode can be a frequency between 4.5 GHz and 5.0 GHz.

[0199] When the antenna assembly 400 is applied to the electronic device of the present application, the following embodiments of the present application will specifically describe the structural layout of the first antenna in the electronic device.

[0200] See also Figure 28, frame 2800 can represent part of the outer contour of the electronic device. A vertical side edge (e.g., the left side) of frame 2800 represents the first side of the electronic device, a horizontal top edge of frame 2800 represents the second side of the electronic device, and a horizontal bottom edge of frame 2800 represents the third side of the electronic device. Therefore, the first antenna radiator 411 of the antenna assembly 400 is located on the first side of the electronic device, the second antenna radiator 412 of the antenna assembly 400 is located on the first side of the electronic device, the distance from the first gap to the second side is greater than 30 mm, and the distance from the first gap to the third side is greater than 30 mm.

[0201] It should be noted that the first side of the electronic device may be a long side of the electronic device 100. Therefore, the first antenna radiator 411 and the second antenna radiator 412 may be located on the long side of the electronic device 100. The first antenna radiator 411 and the second antenna radiator 412 may be a section of the frame assembly 120 or a metal body printed on the inner side of the frame assembly 120.

[0202] In addition, the purpose of the first antenna radiator 411 and the second antenna radiator 412 being located on the long side of the electronic device 100 is that when the user plays games or watches videos through the horizontal screen of the electronic device 100 (such as the user holding the horizontal top and / or bottom edge of the frame 2800), since the first gap 413 is located on the long side of the electronic device 100, it can effectively prevent the user's hand from blocking the first gap 413, thereby ensuring the normal operation of the first antenna, and thus enabling the electronic device to which the above-mentioned antenna assembly 400 is applied to have a better communication effect.

[0203] In combination with the above description, the antenna assembly may also include: a second antenna, the second antenna includes a third antenna radiator; the third antenna radiator includes a first free end and a third grounding end, the third grounding end is provided with a third grounding point, and the third antenna radiator is grounded through the third grounding end system; a second feeding point is provided on the third antenna radiator, and the second feeding point is used to connect to a second feed source.

[0204] It should be noted that in the second antenna of the antenna assembly, the second feed source can be used to generate an excitation signal, and the excitation signal is applied to the third antenna radiator, so that the third antenna radiator radiates an electromagnetic wave signal. Since the FH segment on the third antenna radiator can be equivalent to a small inductor to ground, the FG segment on the third antenna radiator can generate a resonant mode through the excitation of the second feed source. Similarly, the GH segment on the third antenna radiator can generate a resonant mode through the excitation of the second feed source. Therefore, the third antenna radiator can generate multiple resonant modes of the second antenna through the excitation of the second feed source.

[0205] It can be seen that by adding a second antenna to the antenna assembly, the resonant mode of the antenna assembly is increased, the antenna assembly can cover multiple frequency bands, ensure that the antenna assembly supports the transmission requirements of multi-carrier aggregation, and improve the spatial multiplexing capability.

[0206] Specifically, the third antenna radiator can be a different metal structure (metal body or metal arm, etc.) on the electronic device 100. For example, a section of the frame on the frame assembly 120, a metal patch printed on the inside of the back cover assembly 130, a metal patch printed on the inside of the frame assembly 120, a flexible circuit provided on the mainboard 140, or a metal patch printed on the mainboard 140.

[0207] Specifically, the second antenna can be used to cover at least one of the following frequency bands: LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band, and GPS-L1 band.

[0208] It can be seen that the second antenna of the embodiment of the present application can cover the LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band, GPS-L1 band, etc., thereby meeting the antenna communication performance while further realizing that the antenna assembly 400 covers multiple frequency bands and ensuring that the antenna assembly 400 supports the transmission requirements of multi-carrier aggregation.

[0209] Specifically, the length from the second feeding point (F) to the first free end (G) may be greater than the length from the second feeding point (F) to the third ground end (H).

[0210] It should be noted that in the embodiment of the present application, different frequency bands can be covered by the second antenna by setting the second feeding point (F) at different positions on the third antenna radiator 421. The closer the second feeding point (F) is to the third ground terminal (H) on the third antenna radiator 421, that is, the longer the length from the second feeding point (F) to the first free end (G) is than the length from the second feeding point (F) to the third ground terminal (H), thereby improving the radiation efficiency of the third antenna radiator 422.

[0211] Specifically, the second antenna can be used to support the fifth resonant mode and the sixth resonant mode; wherein, the length from the third ground end (H) to the first free end (G) can be 1 / 4 times the wavelength corresponding to the center frequency of the fifth resonant mode; the length from the second feeding point (F) to the first free end (G) can be 1 / 4 times the wavelength corresponding to the center frequency of the sixth resonant mode.

[0212] Furthermore, the center frequency of the fifth resonance mode may be a frequency between 1.5 GHz and 2.0 GHz; and the center frequency of the sixth resonance mode may be a frequency between 2.0 GHz and 3.0 GHz.

[0213] The following embodiments of the present application will illustrate the structural layout of the second antenna on the electronic device in different situations.

[0214] Scenario 1:

[0215] See also Figure 29 The third antenna radiator 421 of the above-mentioned antenna assembly 400 includes a first sub-radiator (HP segment) and a second sub-radiator (GP segment); one end of the first sub-radiator is bent and connected to one end of the second sub-radiator, and the other end of the first sub-radiator is the third ground terminal (H); the other end of the second sub-radiator is the first free end (G); the first sub-radiator is located on the first side of the electronic device, and the second sub-radiator is located on the second side of the electronic device; the second feeding point (F) is located on the first sub-radiator or the second sub-radiator.

[0216] The first sub-radiator and the second sub-radiator may be a diagonal frame section on the frame assembly 120 or a metal body printed on the inner side of the frame assembly 120 .

[0217] It should be noted that one end of the first sub-radiator is bent and connected to one end of the second sub-radiator, which facilitates the placement of the second antenna at a corner of the electronic device. The purpose of placing the second antenna at a corner of the electronic device is that when a user uses the electronic device 100 in portrait orientation (e.g., by the vertical side where the frame 2800 is located, or by the horizontal bottom where the frame 2800 is located), the user's hand generally grips the lower half of the long side of the electronic device 100 or the lower short side of the electronic device 100. Therefore, when a portion of the second antenna is located at the upper short side of the electronic device 100, the second antenna is difficult for the user to grip, thereby ensuring the normal operation of the second antenna and, in turn, enabling the electronic device to which the antenna assembly 400 is applied to have relatively good communication performance.

[0218] Scenario 2:

[0219] See also Figure 30 The third antenna radiator 421 of the antenna assembly 400 is located on the first side or the second side of the electronic device.

[0220] It should be noted that the third antenna radiator 421 is located on a long side or a short side of the electronic device 100. It is understood that the second antenna is located on a long side or a short side of the electronic device 100. The third antenna radiator 421 can be a section of the frame assembly 120 or a metal body printed on the inner side of the frame assembly 120.

[0221] In addition, the purpose of the third antenna radiator 421 being located on the long side of the electronic device 100 is that when the user uses the electronic device 100 in landscape orientation (such as when the user holds the horizontal top and / or bottom sides of the frame 2800), since the user's hands are generally held on the short sides of the electronic device 100, it is difficult for the user to hold the second antenna located on the long side of the electronic device 100, thereby ensuring the normal operation of the second antenna, and further enabling the electronic device to which the above-mentioned antenna assembly 400 is applied to have a better communication effect.

[0222] The purpose of the third antenna radiator 421 being located on the short side of the electronic device 100 is that when the user uses the electronic device 100 through the vertical screen (such as the vertical side where the user holds the frame 2800 or the horizontal bottom edge where the user holds the frame 2800), since the user's hand is generally held on the lower half of the long side of the electronic device 100 or the lower short side of the electronic device 100, when the second antenna is located on the upper short side of the electronic device 100, the second antenna is difficult to be held by the user, thereby ensuring the normal operation of the second antenna, and further enabling the electronic device to which the above-mentioned antenna assembly 400 is applied to have a better communication effect.

[0223] In combination with the above description, the antenna assembly may also include: an antenna connector, a first matching circuit and a second matching circuit; the antenna connector is respectively connected to the first ground terminal and the third ground terminal; the first antenna radiator is connected to the first matching circuit through the first ground terminal to connect to the ground system; the third antenna radiator is connected to the second matching circuit through the third ground terminal to connect to the ground system.

[0224] Specifically, the antenna connector can be a different metal structure (metal body or metal arm, etc.) on the electronic device 100. For example, a frame section on the frame assembly 120, a metal patch printed on the inside of the back cover assembly 130, a metal patch printed on the inside of the frame assembly 120, a flexible circuit provided on the mainboard 140, or a metal patch printed on the mainboard 140.

[0225] It can be seen that the first antenna and the second antenna are connected through the antenna connector, thereby realizing a common radiator of the first antenna and the second antenna, improving the frequency band covered by the antenna assembly 400, ensuring that the antenna assembly 400 supports the transmission requirements of multi-carrier aggregation, and improving the spatial multiplexing capability, thereby enabling the electronic device used by the above-mentioned antenna assembly 400 to have a better communication effect.

[0226] The following embodiments of the present application will describe the structural layout of the antenna connector, the first matching circuit, and the second matching circuit on the electronic device.

[0227] See also Figure 31 and Figure 32The antenna connector 431 is connected to the first ground terminal (B) and the third ground terminal (H) respectively, the first matching circuit 432 is connected in series between the first antenna radiator 411 and the ground system connected to the first ground point, and the second matching circuit 433 is connected in series between the third antenna radiator 421 and the ground system connected to the third ground point.

[0228] In combination with the above description, the antenna assembly may further include: a third matching circuit and a fourth matching circuit; wherein the third matching circuit is connected in series between the first feeding point and the first feed source; and the fourth matching circuit is connected in series between the second feeding point and the second feed source.

[0229] The following embodiments of the present application will describe the structural layout of the third matching circuit and the fourth matching circuit on the electronic device.

[0230] See also Figure 33 and Figure 34 The third matching circuit 441 is connected in series between the first feeding point (A) and the first feed source 414 , and the fourth matching circuit 442 is connected in series between the second feeding point (F) and the second feed source 422 .

[0231] In combination with the above description, the antenna assembly may also include: a third antenna, the third antenna includes a fourth antenna radiator; there is a second gap between the fourth antenna radiator and the end of the third antenna radiator; the fourth antenna radiator includes a second free end and a fourth grounding end, the first free end and the second free end are respectively located on both sides of the second gap and are coupled through the second gap, and the fourth grounding end is provided with a fourth grounding point; a third feeding point is provided on the fourth antenna radiator, and the third feeding point is used to connect a third feed source.

[0232] The fourth antenna radiator may be a different metal structure (metal body or metal arm, etc.) on the electronic device 100. For example, a frame section on the frame assembly 120, a metal patch printed on the inner side of the back cover assembly 130, a metal patch printed on the inner side of the frame assembly 120, a flexible circuit provided on the mainboard 140, or a metal patch printed on the mainboard 140.

[0233] It should be noted that in the third antenna of antenna assembly 400, the third feed source 453 can be used to generate an excitation signal, which is then applied to the fourth antenna radiator 451, causing it to radiate electromagnetic wave signals. Because the connection between the third feed point (K) and the fourth ground terminal (J) on the fourth antenna radiator 451 is equivalent to a small inductor to ground, the excitation from the third feed source 453 can generate a resonant mode from the third feed point (K) to the second free end (I). Similarly, the excitation from the third feed source 453 can generate a resonant mode from the second free end (I) to the fourth ground terminal (J). Thus, the excitation from the third feed source 453 can generate multiple resonant modes from the fourth antenna radiator 451. By adding the third antenna to antenna assembly 400, the resonant modes of antenna assembly 400 are increased, further enabling antenna assembly 400 to cover multiple frequency bands and ensuring that antenna assembly 400 supports the transmission requirements of multi-carrier aggregation.

[0234] Secondly, because third antenna radiator 421 and fourth antenna radiator 451 are spaced apart (i.e., second gap 445 exists between them), and fourth antenna radiator 451 and antenna unit 2 share a common aperture, second gap 445 creates coupling, effectively connecting third antenna radiator 421 and fourth antenna radiator 451 via a capacitor. When the third antenna is operating, it can not only utilize its own fourth antenna radiator 451 to transmit and receive electromagnetic wave signals, but also utilize antenna units 1 and 2 to transmit and receive electromagnetic wave signals. This further increases the frequency band covered by antenna assembly 400, ensuring that antenna assembly 400 supports the transmission requirements of multi-carrier aggregation and improving spatial multiplexing capabilities.

[0235] Finally, by spacing third antenna radiator 421 and fourth antenna radiator 451, the embodiment of the present application can regard fourth antenna radiator 442 as antenna unit 3. Therefore, antenna unit 1 is coupled with antenna unit 2, and antenna unit 2 is coupled with antenna unit 3, thereby increasing the frequency band covered by antenna assembly 400, ensuring that antenna assembly 400 supports the transmission requirements of multi-carrier aggregation, and improving spatial multiplexing capabilities.

[0236] Specifically, the third antenna can be used to support at least one of the following frequency bands: N78 band, N79 band, and WIFI 5GHz band.

[0237] It can be seen that the third antenna of the embodiment of the present application can cover the N78 frequency band, the N79 frequency band, the WIFI 5GHz frequency band, etc., thereby further realizing that the antenna component 400 covers multiple frequency bands while meeting the antenna communication performance, and ensuring that the antenna component 400 supports the transmission requirements of multi-carrier aggregation.

[0238] Specifically, the length from the second free end (I) to the third feeding point (K) may be shorter than the length from the third feeding point (K) to the fourth ground end (J).

[0239] It should be noted that in the embodiment of the present application, the third feeding point (K) can be set at different positions on the fourth antenna radiator 451 to achieve different frequency band coverage by the third antenna. The further the third feeding point (K) is located on the fourth antenna radiator 451 from the fourth ground terminal (J), that is, the shorter the length from the second free end (I) to the third feeding point (K) than the length from the third feeding point (K) to the fourth ground terminal (J), thereby improving the radiation efficiency of the fourth antenna radiator 451.

[0240] Specifically, the third antenna is used to support the seventh resonant mode, the eighth resonant mode, the ninth resonant mode, and the tenth resonant mode; wherein, the current distribution of the seventh resonant mode is from the third feeding point to the third ground terminal; the length from the fourth ground terminal to the second free end is 1 / 8 to 1 / 4 times the wavelength corresponding to the center frequency of the eighth resonant mode; the length from the third feeding point to the second free end is 1 / 4 times the wavelength corresponding to the center frequency of the ninth resonant mode; and the length from the third ground terminal to the first free end is 3 / 4 times the wavelength corresponding to the center frequency of the tenth resonant mode.

[0241] Furthermore, the center frequency of the seventh resonance mode can be a frequency between 3.0 GHz and 3.5 GHz; the center frequency of the eighth resonance mode can be a frequency between 3.5 GHz and 4.0 GHz; the center frequency of the ninth resonance mode can be a frequency between 5.0 GHz and 6.0 GHz; and the center frequency of the tenth resonance mode can be a frequency between 6.0 GHz and 7.0 GHz.

[0242] The following embodiments of the present application will illustrate the structural layout of the third antenna on the electronic device in different situations.

[0243] Scenario 1:

[0244] See also Figure 35 The fourth antenna radiator 451 of the above-mentioned antenna assembly 400 includes a third sub-radiator (IQ segment) and a fourth sub-radiator (JQ segment); one end of the third sub-radiator is bent and connected to one end of the fourth sub-radiator, and the other end of the third sub-radiator is a second free end (I); the other end of the fourth sub-radiator is a fourth ground end (J); the third sub-radiator is located on the first side of the electronic device, and the fourth sub-radiator is located on the second side of the electronic device; the third feeding point (K) is located on the third sub-radiator or the fourth sub-radiator.

[0245] The third sub-radiator and the fourth sub-radiator may be a diagonal frame section on the frame assembly 120 or a metal body printed on the inner side of the frame assembly 120 .

[0246] It should be noted that one end of the third sub-radiator is bent and connected to one end of the fourth sub-radiator, which facilitates the placement of the third antenna at a corner of the electronic device. The purpose of placing the third antenna at a corner of the electronic device is that when a user uses the electronic device 100 in portrait orientation (e.g., by holding the vertical side of the frame 2800 or the horizontal bottom of the frame 2800), the user's hand generally holds the lower half of the long side or the lower short side of the electronic device 100. Therefore, when a portion of the third antenna is located on the upper short side of the electronic device, the second slot 452 is located in the upper half of the long side of the electronic device 100. This effectively prevents the user's hand from blocking the second slot 452, ensuring the normal operation of the third antenna and, in turn, enabling the electronic device using the antenna assembly 400 to achieve relatively good communication performance.

[0247] Scenario 2:

[0248] See also Figure 36 , the fourth antenna radiator 451 is located on the second side of the electronic device.

[0249] See also Figure 37 , the fourth antenna radiator 451 is located on the first side of the electronic device.

[0250] It should be noted that the fourth antenna radiator 451 is located on a long side or a short side of the electronic device 100. It is understood that the third antenna is located on a long side or a short side of the electronic device 100. The fourth antenna radiator 451 can be a section of the frame assembly 120 or a metal body printed on the inner side of the frame assembly 120.

[0251] In addition, the purpose of the fourth antenna radiator 451 being located on the long side of the electronic device 100 is that: when the user uses the electronic device 100 through the vertical screen (such as the user holds the vertical side where the frame 2800 is located or the user holds the horizontal bottom edge where the frame 2800 is located), since the second gap 452 is located in the upper half of the long side of the electronic device 100, and the user's hand is generally held in the lower half of the long side of the electronic device 100 or the lower short side of the electronic device 100, it can effectively avoid the user's hand blocking the second gap 452, thereby ensuring the normal operation of the third antenna, and thus enabling the electronic device to which the above-mentioned antenna assembly 400 is applied to have a better communication effect.

[0252] The purpose of the third antenna radiator 421 being located on the short side of the electronic device 100 is that when the user uses the electronic device 100 through the vertical screen (such as the user holding the vertical side where the frame 2800 is located or the user holding the horizontal bottom edge where the frame 2800 is located), since the second gap 452 is located on the upper short side of the electronic device 100, and the user's hand is generally held on the lower half of the long side of the electronic device 100 or the lower short side of the electronic device 100, it can effectively avoid the user's hand blocking the second gap 452, thereby ensuring the normal operation of the third antenna, and further enabling the electronic device to which the above-mentioned antenna assembly 400 is applied to have a better communication effect.

[0253] In combination with the above description, the antenna assembly may further include: a fifth antenna radiator; one end of the fifth antenna radiator is connected to the first feeding point, and the other end of the fifth antenna radiator is a free end.

[0254] The fifth antenna radiator may be a different metal structure (metal body or metal arm, etc.) on the electronic device 100. For example, a frame section on the frame assembly 120, a metal patch printed on the inner side of the back cover assembly 130, a metal patch printed on the inner side of the frame assembly 120, a flexible circuit provided on the mainboard 140, or a metal patch printed on the mainboard 140.

[0255] It should be noted that the embodiment of the present application increases the resonant mode of the first antenna by adding a fifth antenna radiator 471 in the first antenna, thereby ensuring that the debugging of the antenna component is more flexible, improving the antenna efficiency of the antenna component, further realizing that the antenna component 400 covers multiple frequency bands, and ensuring that the antenna component 400 supports the transmission requirements of multi-carrier aggregation.

[0256] In addition, in the embodiment of the present application, the fifth antenna radiator 471 may be regarded as the antenna unit 4.

[0257] The following embodiments of the present application will illustrate the structural layout of the fifth antenna radiator on the electronic device.

[0258] See also Figure 38 One end of the fifth antenna radiator 471 is connected to the first feeding point (A), and the other end of the fifth antenna radiator is a free end.

[0259] In conjunction with the above description, since an electronic device may include at least one button, such as a power button, a volume button, and a mute button, for example, the frame assembly 120 of the electronic device 100 may need to have a certain gap for accommodating the button, or may not have a gap and use a touch-sensitive method to place the button inside the frame assembly 120. Therefore, when the above-mentioned antenna assembly 400 is applied to an electronic device, how to implement the structural layout of the antenna assembly 400 and the button to improve the overall stacking of the electronic device is described in detail below.

[0260] Specifically, the electronic device also includes at least one button; the first antenna radiator 411 is arranged around or around the button; or, the second antenna radiator 412 is arranged around or around the button; or, the third antenna radiator 421 is arranged around or around the button; or, the antenna connector 431 is arranged around or around the button; or, the fourth antenna radiator 451 is arranged around or around the button.

[0261] It should be noted that if the frame assembly 120 of the electronic device 100 needs to have a certain gap for placing a button, and the first antenna radiator 411 is a section of the frame assembly 120, then the gap needs to be opened on the first antenna radiator 411 for placing the button. In this case, the first antenna radiator 411 is arranged around the button. Alternatively, if the frame assembly 120 of the electronic device 100 does not need to have a certain gap, and a button is placed on the inside of the frame assembly 120 using a touch-sensitive method, and the first antenna radiator 411 is a section of the frame assembly 120, then the button can be arranged close to the first antenna radiator 411, that is, the first antenna radiator 411 is arranged around the button. The structural layout of the remaining antenna radiators and buttons can be understood in the same way, and will not be described in detail.

[0262] For example, see Figure 39 The electronic device includes a button 3901 and a button 3902. The second antenna radiator 412 is disposed around or encircles the button 3901, and the antenna connector 431 is disposed around or encircles the button 3902. As can be seen, the structural layout of the antenna assembly 400 and the button facilitates improving the overall stacking capability of the electronic device.

[0263] Combined with the above Figure 14 、 Figure 23 and Figure 24 As described above, when the antenna assembly 400 is applied to an electronic device, in order to enable the electronic device to have the ability to detect SAR, it is necessary to use a DC isolation device to make the antenna unit 1 / antenna unit 2 / antenna unit 3 of the above-mentioned antenna assembly 400 a metal body suspended relative to the DC circuit in the feed source and / or ground system.

[0264] Specifically, a DC blocking device is connected in series between the first feed source and the first antenna radiator; a DC blocking device is connected in series between the second feed source and the third antenna radiator; a DC blocking device is connected in series between the third feed source and the fourth antenna radiator; a DC blocking device is connected in series between the first antenna radiator and the ground system connected to the first grounding point; a DC blocking device is connected in series between the third antenna radiator and the ground system connected to the third grounding point; and a DC blocking device is connected in series between the second antenna radiator and the ground system connected to the second grounding point.

[0265] The DC blocking device may include a DC blocking capacitor or a DC blocking circuit.

[0266] In combination with the description, when the antenna unit 1 / antenna unit 2 / antenna unit 3 of the above-mentioned antenna assembly 400 is used as a metal body suspended relative to the DC circuit in the feed source and / or ground system through a DC blocking capacitor, the electronic device of an embodiment of the present application includes a proximity sensor, thereby realizing the SAR detection capability of the electronic device through the proximity sensor and the antenna assembly 400.

[0267] Specifically, the electronic device may further include: a proximity sensor and at least one detection branch; the detection branch is used to connect the proximity sensor and the antenna assembly 400; the proximity sensor is used to detect changes in the capacitance signal through the antenna assembly 400 to determine whether the user is close to or away from the electronic device.

[0268] Furthermore, the detection branch may include a signal filtering device.

[0269] It should be noted that adding a signal filtering device to the detection branch can isolate or filter higher frequency signals, thereby ensuring that the antenna assembly 400 is not affected by the detection branch.

[0270] Furthermore, the signal filtering device may include an inductor or a signal filtering circuit, wherein the inductance value of the inductor may be 82nH, thereby having little impact on the antenna assembly 400 .

[0271] Furthermore, the proximity sensor may be provided on the main board 140 in the electronic device 100 , and the detection branch may be provided on the main board 140 in the electronic device 100 .

[0272] For example, see Figure 40 The electronic device further includes a proximity sensor 4001, an inductor L3, an inductor L4, and an inductor L5. The line connecting proximity sensor 4001 to antenna unit 3 via inductor L3 can be considered a detection branch. Similarly, the line connecting proximity sensor 4001 to antenna unit 2 via inductor L4 can be considered a detection branch, and the line connecting proximity sensor 4001 to antenna unit 1 via inductor L5 can be considered a detection branch.

[0273] It should be noted that the proximity sensor 4001 can also be connected to any position on the antenna unit 1 / antenna unit 2 / antenna unit 3 through the detection branch. At the same time, the proximity sensor 4001 can also be connected to at least one of the antenna unit 1 / antenna unit 2 / antenna unit 3 through the detection branch, without specific limitation.

[0274] It can be seen that the proximity sensor in the electronic device can use the suspended antenna assembly 400 to sense the capacitance signal changes caused by the user using the electronic device, thereby determining whether the user is close to or far away from the electronic device, thereby ensuring that the electronic device has SAR detection capabilities.

[0275] It should be noted that in the above embodiments, the description of each embodiment in this application has different focuses. Therefore, those skilled in the art can understand the technical solution (or structural layout) of a certain embodiment through the structural layout in the existing drawings, and the detailed description of the drawings is not provided. Therefore, this is not repeated here.

[0276] In summary, the antenna assembly 400 of the embodiment of the present application is applied to electronic devices, which can help improve the overall stacking of electronic devices, enhance the communication capability of the antenna assembly when the electronic device is used in landscape or portrait mode, and ensure that the electronic device has SAR detection capabilities.

[0277] The above describes the embodiments of the present application in detail. The descriptions in the embodiments of the present application are only intended to help understand the method and core concept of the present application. Those skilled in the art should be aware that the embodiments of the present application may vary in specific implementation and scope of application. Therefore, the contents of this specification should not be construed as limiting the present application.

[0278] Although the embodiments of the present application have been illustrated and described above, it should be understood that the above embodiments are merely exemplary and should not be construed as limiting the present application. Therefore, those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments or drawings within the scope of protection claimed by the present application, and such improvements and modifications shall also be deemed to be within the scope of protection claimed by the present application.

Claims

1. An antenna assembly, characterized in that: include: a first antenna, the first antenna comprising a first antenna radiator and a second antenna radiator, wherein a first gap exists between the first antenna radiator and the second antenna radiator; a second antenna, the second antenna comprising a third antenna radiator; Antenna connector; a first matching circuit and a second matching circuit; The first antenna radiator includes a first coupling end and a first grounding end, and the second antenna radiator includes a second coupling end and a second grounding end. The first coupling end and the second coupling end are respectively located on both sides of the first slot and coupled through the first slot. The first grounding end has a first grounding point, and the second grounding end has a second grounding point. The first antenna radiator is connected to the first matching circuit through the first grounding end to form a grounding system. The third antenna radiator includes a first free end and a third ground end, the third ground end is provided with a third grounding point, the third antenna radiator is connected to the second matching circuit through the third ground end to be grounded to the ground system, and the antenna connector is respectively connected to the first ground end and the third ground end; A first feeding point is provided on the first antenna radiator, and the first feeding point is used to connect to a first feed source; A second feeding point is provided on the third antenna radiator, and the second feeding point is used to connect to a second feed source; The first antenna is used to support a first resonant mode, a second resonant mode, a third resonant mode, and a fourth resonant mode; wherein, The length from the first ground end to the first coupling end is 1 / 8 to 1 / 4 times the wavelength corresponding to the center frequency of the first resonant mode; The length from the second ground end to the second coupling end is 1 / 4 times the wavelength corresponding to the center frequency of the second resonant mode; The length from the first feeding point to the first coupling end is 1 / 4 times the wavelength corresponding to the center frequency of the third resonant mode; The length from the first ground end to the first coupling end is ¾ times the wavelength corresponding to the center frequency of the fourth resonant mode.

2. The antenna assembly according to claim 1, wherein: The second antenna is used to support the fifth resonant mode and the sixth resonant mode; wherein, The length from the third ground end to the first free end is 1 / 4 times the wavelength corresponding to the center frequency of the fifth resonant mode; The length from the second feeding point to the first free end is 1 / 4 times the wavelength corresponding to the center frequency of the sixth resonant mode.

3. The antenna assembly according to claim 1, wherein: The antenna assembly further includes: a third matching circuit and a fourth matching circuit; wherein, The third matching circuit is connected in series between the first feeding point and the first feed source; The fourth matching circuit is connected in series between the second feeding point and the second feed source.

4. The antenna assembly according to any one of claims 1 to 3, characterized in that: The antenna assembly further includes: a third antenna, the third antenna comprising a fourth antenna radiator; There is a second gap between the fourth antenna radiator and the third antenna radiator; The fourth antenna radiator includes a second free end and a fourth ground end, the first free end and the second free end are respectively located on both sides of the second slot and coupled through the second slot, and the fourth ground end is provided with a fourth grounding point; A third feeding point is provided on the fourth antenna radiator, and the third feeding point is used to connect to a third feed source.

5. The antenna assembly according to claim 4, wherein: The third antenna is used to support the seventh resonance mode, the eighth resonance mode, the ninth resonance mode and the tenth resonance mode; wherein, The current distribution of the seventh resonant mode is from the third feeding point to the third ground terminal; The length from the fourth ground end to the second free end is 1 / 8 to 1 / 4 times the wavelength corresponding to the center frequency of the eighth resonant mode; The length from the third feeding point to the second free end is 1 / 4 times the wavelength corresponding to the center frequency of the ninth resonant mode; The length from the third ground end to the first free end is 3 / 4 times the wavelength corresponding to the center frequency of the tenth resonant mode.

6. The antenna assembly according to any one of claims 1 to 3, characterized in that: The antenna assembly further includes: At least one sixth matching circuit, one end of the sixth matching circuit is connected to a fifth ground terminal on the antenna connector, the fifth ground terminal is provided with a fifth grounding point, the fifth ground terminal is located between the first ground terminal and the third ground terminal, and the other end of the sixth matching circuit is connected to the ground system connected to the fifth grounding point.

7. The antenna assembly according to any one of claims 1 to 3, characterized in that: The antenna assembly further includes: a fifth antenna radiator; One end of the fifth antenna radiator is connected to the first feeding point, and the other end of the fifth antenna radiator is a free end.

8. The antenna assembly according to any one of claims 1 to 3, characterized in that: The antenna assembly is used to cover at least one of the following frequency bands: LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band, WIFI 5GHz band, and GPS-L1 band.

9. An electronic device, characterized in that: The antenna assembly includes a first antenna, the first antenna includes a first antenna radiator and a second antenna radiator, and a first gap exists between the first antenna radiator and the second antenna radiator; The first slit is located on a first side of the electronic device, a distance from the first slit to a second side of the electronic device is greater than 30 mm, and a distance from the first slit to a third side of the electronic device is greater than 30 mm, the second side is adjacent to one side of the first side, and the third side is adjacent to the other side of the first side; The first antenna radiator includes a first coupling end and a first grounding end, and the second antenna radiator includes a second coupling end and a second grounding end. The first coupling end and the second coupling end are respectively located on both sides of the first slot and coupled through the first slot. The first grounding end has a first grounding point, and the second grounding end has a second grounding point. The first antenna radiator is grounded to a grounding system through the first grounding end. A first feeding point is provided on the first antenna radiator, and the first feeding point is used to connect to a first feed source; The first antenna is used to support a first resonant mode, a second resonant mode, a third resonant mode, and a fourth resonant mode; wherein, The length from the first ground end to the first coupling end is 1 / 8 to 1 / 4 times the wavelength corresponding to the center frequency of the first resonant mode; The length from the second ground end to the second coupling end is 1 / 4 times the wavelength corresponding to the center frequency of the second resonant mode; The length from the first feeding point to the first coupling end is 1 / 4 times the wavelength corresponding to the center frequency of the third resonant mode; The length from the first ground end to the first coupling end is ¾ times the wavelength corresponding to the center frequency of the fourth resonant mode.

10. The electronic device according to claim 9, wherein: The antenna assembly further includes: a second antenna, the second antenna comprising a third antenna radiator; The third antenna radiator includes a first free end (G) and a third grounding end (H), the third grounding end is provided with a third grounding point, and the third antenna radiator is connected to the ground system through the third grounding end; A second feeding point is provided on the third antenna radiator, and the second feeding point is used to connect to a second feed source.

11. The electronic device according to claim 10, characterized in that The third antenna radiator includes a first sub-radiator and a second sub-radiator; One end of the first sub-radiator is connected to one end of the second sub-radiator by bending, and the other end of the first sub-radiator is the third ground end; The other end of the second sub-radiator is the first free end; The first sub-radiator is located at the first side of the electronic device, and the second sub-radiator is located at the second side of the electronic device; The second feeding point is located on the first sub-radiator or the second sub-radiator.

12. The electronic device according to claim 10, wherein: The third antenna radiator is located on the first side or the second side of the electronic device.

13. The electronic device according to any one of claims 10 to 12, characterized in that: The antenna assembly further includes: an antenna connector, a first matching circuit and a second matching circuit; The antenna connector is connected to the first ground terminal and the third ground terminal respectively; The first antenna radiator is connected to the first matching circuit via the first ground terminal to be grounded to the ground system; The third antenna radiator is connected to the second matching circuit through the third ground terminal to be grounded to the ground system.

14. The electronic device according to claim 13, wherein: The antenna assembly further includes: a third matching circuit and a fourth matching circuit; wherein, The third matching circuit is connected in series between the first feeding point and the first feed source; The fourth matching circuit is connected in series between the second feeding point and the second feed source.

15. The electronic device according to any one of claims 10 to 12, characterized in that: The antenna assembly further includes: a third antenna, the third antenna comprising a fourth antenna radiator; There is a second gap between the fourth antenna radiator and the end of the third antenna radiator; The fourth antenna radiator includes a second free end and a fourth ground end, the first free end and the second free end are respectively located on both sides of the second slot and coupled through the second slot, and the fourth ground end is provided with a fourth grounding point; A third feeding point is provided on the fourth antenna radiator, and the third feeding point is used to connect to a third feed source.

16. The electronic device according to claim 15, characterized in that The fourth antenna radiator includes a third sub-radiator and a fourth sub-radiator; One end of the third sub-radiator is connected to one end of the fourth sub-radiator by bending, and the other end of the third sub-radiator is the second free end; The other end of the fourth sub-radiator is the fourth ground end; The third sub-radiator is located on the first side of the electronic device, and the fourth sub-radiator is located on the second side of the electronic device; The third feeding point is located on the third sub-radiator or the fourth sub-radiator.

17. The electronic device according to claim 15, characterized in that The fourth antenna radiator is located on the first side or the second side of the electronic device.

18. The electronic device according to claim 15, characterized in that A DC blocking device is provided between the first feed source and the first antenna radiator; A DC blocking device is connected in series between the second feed source and the third antenna radiator; A DC blocking device is connected in series between the third feed source and the fourth antenna radiator; A DC blocking device is connected in series between the first antenna radiator and the ground system to which the first grounding point is connected; A DC blocking device is connected in series between the third antenna radiator and the ground system to which the third grounding point is connected; A DC blocking device is connected in series between the second antenna radiator and the ground system to which the second grounding point is connected.

19. The electronic device according to claim 18, wherein: The electronic device further comprises: a proximity sensor and at least one detection branch; The detection branch is used to connect the proximity sensor and the antenna assembly; The proximity sensor is used to detect changes in capacitance signals through the antenna assembly to determine whether a user is approaching or moving away from the electronic device.

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