Antenna module and communication equipment

Abstract

The invention relates to an antenna module and communication equipment, and the antenna module comprises an equipment cover plate which comprises an equipment frame; the first gap and the second gap are formed in the same long frame; the third gap and the fourth gap are respectively arranged on the first short frame and the second short frame which are opposite to each other and are close to the same long frame; the first antenna is arranged at one end of the first gap away from the first short frame; the second antenna is arranged at one end of the first gap close to the first short frame; the third antenna is arranged at one end of the third slot close to the long frame; the fourth antenna is arranged at one end of the second gap away from the second short frame; the fifth antenna is arranged at one end, close to the second short frame, of the second slot; the sixth antenna is arranged at one end, close to the long frame, of the fourth slot; the seventh antenna is arranged at a first preset position on one side, far away from the circuit board of the communication equipment, of the equipment cover plate; and the eighth antenna is arranged at a second preset position far away from one side of the circuit board in the equipment cover plate. Through the structure, the cost of the antenna module can be reduced.

Description

Technical Field

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

[0002] With the widespread application of 5G communication technology in smart terminal devices, the market demand for metal-appearance tablet devices with 5G communication functions continues to grow due to their comprehensive advantages such as high structural strength, excellent heat dissipation performance, and strong portability.

[0003] In traditional technology, the nano-injection molding process is commonly used to implement a fractured metal structure antenna solution. This technology forms a radiator by opening more than 8 physical fracture areas on the metal back shell, and uses nano-injection molding materials to fill the fractures to achieve electrical insulation of the antenna functional area.

[0004] However, during the implementation process, the applicant discovered that the traditional technology at least had the problem of high cost. Summary of the Invention

[0005] Based on this, the purpose of this application is to solve at least one of the above-mentioned technical defects, especially the technical defect of high cost in the prior art. This application provides an antenna module and communication equipment.

[0006] In a first aspect, the present application provides an antenna module for use in a multi-antenna communication device including 5G communication, the antenna module comprising:

[0007] The device cover includes a device frame; the device frame is provided with four gaps;

[0008] The first slit and the second slit are arranged on the same long frame, and the first slit and the second slit are symmetrically arranged about the middle point of the long frame;

[0009] The third slit and the fourth slit are respectively arranged on the first short frame and the second short frame which are opposite to each other, and are both arranged close to the same long frame;

[0010] A first antenna is provided at an end of the first slot away from the first short frame;

[0011] A second antenna is provided at one end of the first slot close to the first short frame;

[0012] A third antenna is provided at one end of the third slot close to the long frame; the third antenna and the second antenna share the same frame segment;

[0013] A fourth antenna is provided at an end of the second slot away from the second short frame; the fourth antenna and the first antenna share the same frame segment;

[0014] A fifth antenna is provided at one end of the second slot close to the second short frame;

[0015] A sixth antenna is provided at an end of the fourth slot close to the long frame; the sixth antenna and the fifth antenna share the same frame segment;

[0016] A seventh antenna is provided at a first preset position on a side of the device cover away from the circuit board of the communication device;

[0017] The eighth antenna is arranged at a second preset position inside the device cover away from the circuit board.

[0018] In one embodiment, the first antenna is a main antenna, and the resonant frequency of the first antenna covers the full frequency band of the 4G cellular main antenna; the fourth antenna is a diversity antenna, and the resonant frequency of the fourth antenna covers the full frequency band of the 4G cellular diversity antenna.

[0019] In one embodiment, the fourth antenna shares the first frame segment with the first antenna; and the module further includes:

[0020] A signal source of the first antenna is arranged at a first position of the first frame segment;

[0021] a first tuning circuit, wherein a first end of the first tuning circuit is connected to the second position of the first frame segment, and a second end of the first tuning circuit is grounded;

[0022] A first matching circuit is provided in an area of the device cover corresponding to a preset middle position of the first frame segment; the first matching circuit is connected to the middle area of the first frame segment, and a second end of the first matching circuit is grounded;

[0023] a second tuning circuit, wherein a first end of the second tuning circuit is connected to the third position of the first frame segment, and a second end of the second tuning circuit is grounded;

[0024] A signal source of the fourth antenna is arranged at a fourth position of the first frame segment;

[0025] The directions from the first gap to the second gap are: first position, second position, middle area position, third position, and fourth position.

[0026] In one embodiment, the first matching circuit includes:

[0027] a DC blocking circuit, disposed corresponding to the middle point of the first frame segment, wherein a first end of the DC blocking circuit is connected to the fifth position of the first frame segment, and a second end is grounded;

[0028] a first DC blocking filter circuit, a first end of which is connected to the sixth position of the first frame segment, and a second end of which is grounded;

[0029] a second DC blocking filter circuit, a first end of which is connected to the seventh position of the first frame segment, and a second end of which is grounded;

[0030] The sixth position and the seventh position are symmetrically arranged at a preset distance from the fifth position.

[0031] In one embodiment, the length of the first frame segment is 160-180 mm; and the preset distance is 3-5 mm.

[0032] In one embodiment, the second antenna is a main antenna, and the resonant frequency of the second antenna covers the SUB-6G antenna frequency band;

[0033] The third antenna is a diversity antenna, and the resonant frequency of the third antenna covers the intermediate frequency and high frequency of the SUB-6G band included in the 5G frequency band;

[0034] The seventh antenna is a multi-in-one antenna, and the resonant frequency of the seventh antenna covers the antenna frequency bands of multiple satellite navigation systems, the antenna frequency band of WiFi, and the antenna frequency band of Bluetooth;

[0035] The eighth antenna is a 5G ENDC antenna, and the resonant frequency of the eighth antenna covers the n20 and n28 antenna bands.

[0036] In one embodiment, the first slit and the second slit are arranged on the first long frame, and the second preset position is arranged close to the first long frame.

[0037] In one embodiment, the fifth antenna is a main antenna, and the resonant frequency of the fifth antenna covers the B21 frequency band in the 4G LTE frequency band and the SUB-6G frequency band included in the 5G frequency band;

[0038] The sixth antenna is a 5G ENDC antenna, and the resonant frequency of the sixth antenna covers the mid-frequency band, high-frequency band and sub6G band included in the 4G frequency band.

[0039] In one embodiment, the second antenna is a GPS antenna, and the resonant frequency of the second antenna covers antenna frequency bands of multiple satellite navigation systems;

[0040] The third antenna is a diversity antenna, and the resonant frequency of the third antenna covers the intermediate frequency and high frequency of the SUB-6G band included in the 5G frequency band;

[0041] The seventh antenna is a WiFi antenna, and the resonant frequency of the seventh antenna covers the WiFi antenna frequency band and the Bluetooth antenna frequency band;

[0042] The eighth antenna is a 5G diversity antenna, and the resonant frequency of the eighth antenna covers the SUB-6G band included in the 5G frequency band.

[0043] In one embodiment, the first slit and the second slit are arranged on the first long frame, the second preset position is arranged close to the second long frame, and the second long frame is arranged opposite to the first long frame.

[0044] In one embodiment, the fifth antenna is a main antenna, and the resonant frequency of the fifth antenna covers the B21 band in the 4G LTE band and the SUB-6G antenna band;

[0045] The sixth antenna is a 5G ENDC antenna, and the resonant frequency of the sixth antenna covers the full frequency band of 4G and the SUB-6G frequency band included in the 5G frequency band.

[0046] In one embodiment, the module further includes:

[0047] an antenna switch, wherein a first end of the antenna switch is connected to the sixth antenna, and a second end of the antenna switch is grounded;

[0048] The antenna switch is used for switching the frequency band of the sixth antenna.

[0049] In one embodiment, the sixth antenna and the fifth antenna share a third frame segment; and the module further includes:

[0050] There are at least two second matching circuits, a first end of each second matching circuit is connected to a different grounding point of the third frame segment, and a second end of each second matching circuit is used for grounding.

[0051] In one embodiment, the third antenna shares the second frame segment with the second antenna;

[0052] The second frame segment is provided with at least two grounding points for grounding;

[0053] In one embodiment, the first preset position is a rear camera area of the communication device.

[0054] In one embodiment, the third antenna and the second antenna share the second frame segment; the sixth antenna and the fifth antenna share the third frame segment;

[0055] The signal source of the second antenna is arranged on the long side corresponding to the second frame segment and close to the first gap;

[0056] The signal source of the third antenna is arranged on the short side corresponding to the second frame segment and close to the third gap;

[0057] The signal source of the fifth antenna is arranged on the long side corresponding to the third frame segment and close to the second gap;

[0058] The signal source of the sixth antenna is arranged on the short side corresponding to the third frame segment and close to the fourth slot.

[0059] In a second aspect, the present application provides a communication device, including:

[0060] Screen;

[0061] A device cover is provided with the antenna module as described above;

[0062] The PCB board is connected to the antenna module and the screen respectively, and is used to realize the core functions of the communication equipment.

[0063] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0064] The antenna module provided in this application utilizes four slots in the device frame and six antennas as frame antennas. The design between the four slots allows three antenna groups to share the same frame segment, effectively achieving functional reuse through frequency band isolation while reducing the number of frame slots. The symmetrical design of the four slots also creates an aesthetically pleasing effect. Furthermore, two antennas are arranged in a three-dimensional layout inside the cover and away from the circuit board, further reducing slots and improving the space utilization of the communication device. This application also utilizes eight antennas arranged in four slots, ensuring 5G multi-antenna functionality and supporting multi-band and MIMO (multiple input and output) technology requirements. The provision of four physical slots reduces the cost of slot injection molding compared to antenna designs with six or eight or more slots, thereby effectively reducing the cost of the antenna module. Furthermore, reducing slots in the device frame also improves the overall structural strength of the communication device, avoiding the risk of deformation caused by multiple slots. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order 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 ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0066] Figure 1 A schematic structural diagram of an antenna module provided in an embodiment of the present application;

[0067] Figure 2 A schematic structural diagram of another antenna module provided in an embodiment of the present application;

[0068] Figure 3 A schematic diagram of S11 corresponding to a first antenna as a main antenna provided in an embodiment of the present application;

[0069] Figure 4 A schematic diagram of S11 corresponding to a fourth antenna being a diversity antenna provided in an embodiment of the present application;

[0070] Figure 5 A schematic diagram of S11 corresponding to an eighth antenna provided in an embodiment of the present application, where the eighth antenna is a 5G diversity antenna;

[0071] Figure 6 A schematic diagram of S11 corresponding to a seventh antenna provided in an embodiment of the present application, where the seventh antenna is a WIFI antenna;

[0072] Figure 7 A schematic diagram of S11 corresponding to a 5G ENDC antenna, provided in an embodiment of the present application;

[0073] Figure 8 A schematic diagram of S11 corresponding to a fifth antenna as a main antenna provided in an embodiment of the present application;

[0074] Figure 9 A schematic diagram of S11 corresponding to a third antenna being a diversity antenna provided in an embodiment of the present application;

[0075] Figure 10 A schematic diagram of S11 corresponding to a second antenna provided in an embodiment of the present application, where the second antenna is a GPS antenna;

[0076] Figure 11 A schematic diagram of the overall structure of a communication device provided in an embodiment of the present application;

[0077] Figure 12 A schematic diagram of the effect of a communication device provided in an embodiment of the present application.

[0078] Reference numerals:

[0079] 1 - Signal source of the first antenna; 2 - Signal source of the second antenna; 3 - Signal source of the third antenna; 4 - Signal source of the fourth antenna; 5 - Signal source of the fifth antenna; 6 - Signal source of the sixth antenna; 7 - Signal source of the seventh antenna; 8 - Signal source of the eighth antenna; 11 - Screen; 12 - Device cover; 13 - PCB board; 14 - Seventh antenna; 15 - Plastic board; 19 - Eighth antenna; 17 - First device button; 18 - Second device case; SS10 - Device frame; SS2 - First frame segment; SS3 - Third frame segment; SS5 - Second frame segment; D11 - Fourth gap; D21 - Second gap; D31 - First gap; D41 - Third gap ; D311-first antenna; D213-fourth antenna; D312-second antenna; D412-third antenna; D212-fifth antenna; D112-sixth antenna; G10-third matching circuit; G11-fourth matching circuit; G12-first DC blocking filter circuit; G13-DC blocking circuit; G14-second DC blocking filter circuit; G121-second tuning circuit; G141-first tuning circuit; G15-first grounding circuit; G16-second grounding circuit; G131-antenna switch; G191-first earth-to-ground feeder; G192-second earth-to-ground feeder; G193-third earth-to-ground feeder; G19-fifth matching circuit; S99-shielding cover. DETAILED DESCRIPTION

[0080] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0081] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0082] It should be understood that the terms "first," "second," and so forth, used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are used solely to distinguish a first element from another element. For example, a first antenna may be referred to as a second antenna, and similarly, a second antenna may be referred to as a first antenna, without departing from the scope of this application. The first antenna and the second antenna are both antennas, but they are not the same antenna.

[0083] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0084] With the widespread application of 5G communication technology in smart terminal devices, the market demand for metal-appearance tablet devices with 5G communication functions continues to grow due to their comprehensive advantages such as high structural strength, excellent heat dissipation performance, and strong portability.

[0085] In traditional technology, the nano-injection molding process is commonly used to implement a fractured metal structure antenna solution. This technology forms a radiator by opening more than 8 physical fracture areas on the metal back shell, and uses nano-injection molding materials to fill the fractures to achieve electrical insulation of the antenna functional area.

[0086] However, the 5G antenna solution with an eight-slit metal structure is highly destructive to the appearance of the device. The all-metal structure uses a nano-injection molding process, and the metal shell is expensive. How to reduce the number of fractures, improve the appearance, reduce costs, and at the same time meet excellent 5G communication functions and regulatory performance has been a long-standing technical pain point in the field of antenna technology.

[0087] Based on this, in order to solve the above problems, the present application provides an antenna module and a communication device. By setting four physical gaps, the cost of gap injection molding can be reduced compared to the antenna design with 6 or more gaps, thereby effectively reducing the cost of the antenna module. At the same time, reducing the gaps in the device frame can also improve the overall structural strength of the communication device to avoid the risk of deformation caused by multiple gaps.

[0088] In an exemplary embodiment, Figure 1 A schematic structural diagram of an antenna module provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of another antenna module provided in an embodiment of the present application is shown in FIG. Figure 1 and Figure 2 As shown, an antenna module is applied to a communication device including multiple antennas for 5G communication, and the antenna module includes:

[0089] The device cover 12 includes a device frame SS10; the device frame SS10 is provided with four gaps.

[0090] The communication device may be a tablet device. The device cover 12 may refer to the housing structure of the smart tablet device, typically made of metal or composite materials, and may provide mechanical support, electromagnetic shielding, and antenna radiation functions. For example, the device cover 12 is a metal cover.

[0091] The device frame SS10 may refer to the edge area of the device cover 12, which is usually a metal frame surrounding the screen. It can serve as a structural member to enhance the rigidity of the device and as an antenna radiator to realize signal transmission and reception.

[0092] The gap may be a physical break formed on the metal frame by laser cutting or stamping, and is used to separate the metal frame to form an independent antenna radiator.

[0093] The first slit D31 and the second slit D21 are arranged on the same long frame, and the first slit D31 and the second slit D21 are symmetrically arranged around the middle point of the long frame.

[0094] The third slit D41 and the fourth slit D11 are respectively disposed on the first short frame and the second short frame that are opposite to each other, and are both disposed close to the same long frame.

[0095] Exemplarily, the first slot D31 and the second slot D21 can be arranged on the same long frame (the long side of the communication device), for example, they can both be arranged on the first long frame and be distributed in a mirror-symmetrical manner with the geometric center point of the long frame as the axis of symmetry. In this way, the complementarity of the antenna radiation pattern can be achieved through a symmetrical layout, thereby enhancing the uniformity of signal coverage in the long side direction. The third slot D41 and the fourth slot D11 can be arranged on two opposite short frames of the device (the short sides of the communication device), respectively, and both are close to the same long frame, for example, both are close to the top or bottom long side of the device. The third slot D41 and the fourth slot D11 can be symmetrically arranged, for example, the distance between the third slot D41 and the same long side and the distance between the fourth slot D11 and the same long side can be the same.

[0096] The first antenna D311 is disposed at an end of the first slot D31 away from the first short frame.

[0097] Exemplarily, the first antenna D311 can be located between the first slot D31 and the second slot D21, with the first slot D31 as the boundary, and the metal frame segment away from the first short frame side can be used as the radiator of the first antenna D311.

[0098] The second antenna D312 is disposed at one end of the first slot D31 close to the first short frame.

[0099] Exemplarily, the second antenna D312 may be disposed near a corner of the first short frame. The second antenna D312 shares the first slot D31 with the first antenna D311 but utilizes the metal segment near the first short frame as a radiator.

[0100] The third antenna D412 is disposed at one end of the third slot D41 close to the first long frame; the third antenna D412 and the second antenna D312 share the same frame segment.

[0101] For example, the third antenna D412 can be located at the junction of the short frame and the first long frame. The third antenna D412 and the second antenna D312 can share the same metal frame segment, that is, the same radiator. For example, the portion of the first long frame near the first short frame and the portion of the first short frame near the first long frame, that is, the angle segment between the first long frame and the first short frame, can serve as the shared radiator for the third antenna D412 and the second antenna D312. The angle segment can be a straight angle, a rounded angle, an arc angle, etc.

[0102] The fourth antenna D213 is disposed at an end of the second slot D21 away from the second short frame; the fourth antenna D213 and the first antenna D311 share the same frame segment.

[0103] Exemplarily, the fourth antenna D213 is located near the middle extension direction of the first long frame and can be located between the first slot D31 and the second slot D21. The fourth antenna D213 can share the same metal segment with the first antenna D311 as a radiator.

[0104] The fifth antenna D212 is disposed at one end of the second slot D21 close to the second short frame.

[0105] Exemplarily, the fifth antenna D212 can be set close to the corner of the second short frame, and the second antenna D312 and the fourth antenna D213 share the second slot D21, but use the metal segment close to the second short frame as the radiator.

[0106] The sixth antenna D112 is disposed at one end of the fourth slot D11 close to the first long frame; the sixth antenna D112 and the fifth antenna D212 share the same frame segment.

[0107] Exemplarily, the sixth antenna D112 is located at the junction of the second short frame and the first long frame. The sixth antenna D112 and the fifth antenna D212 share the same metal segment, that is, the same radiator. For example, the portion of the first long frame near the second short frame and the portion of the second short frame near the first long frame, that is, the angled section between the first long frame and the second short frame, can serve as the shared radiator for the sixth antenna D112 and the fifth antenna D212. The angled section can be a straight angle, a rounded angle, an arc angle, etc.

[0108] The seventh antenna 14 is disposed at a first preset position on a side of the device cover 12 away from the circuit board of the communication device.

[0109] The eighth antenna 19 is disposed at a second preset position inside the device cover 12 away from the circuit board.

[0110] Exemplarily, the seventh antenna 14 and the eighth antenna 19 can be arranged on one side of the outer surface of the device cover 12, such as the outside of the metal back shell or the frame, opposite to the plane where the internal circuit main board is located.

[0111] The seventh antenna 14 can be located in the first predetermined characteristic area, for example, in the rear camera area of the device cover 12 to improve the utilization of the device cover 12's controls. The seventh antenna 14 can adopt a PIFA antenna design using traditional FPC technology and be mounted on a decorative plastic bracket in the rear camera area. The eighth antenna 19 can be located in the second predetermined characteristic area, which can be located at the edge of the device cover 12, or near the first antenna D311 through the sixth antenna D112.

[0112] In practical applications, the structure of the above-mentioned antenna module can effectively reduce the number of border gaps, and can meet the performance index requirements, positioning requirements, Bluetooth communication requirements, etc. of 5G NR 4×4 MIMO. It can also meet the performance index requirements of 4G, thereby meeting the high-speed communication requirements while reducing the cost of the antenna module of the communication equipment.

[0113] In this embodiment, four slots are provided in the device frame SS10, and six antennas are configured as frame antennas. The design between the four slots allows three groups of antennas to share the same frame segment. This reduces the number of frame slots while effectively achieving functional reuse through frequency band isolation. The symmetrical design of the four slots also has an aesthetically pleasing effect. Furthermore, two antennas are arranged in a three-dimensional layout inside the cover and away from the circuit board, further reducing the number of slots and improving the space utilization of the communication device. This application also utilizes four slots to arrange eight antennas, ensuring 5G multi-antenna functionality and supporting multi-band and MIMO (multiple input and output) technical requirements. Thus, the provision of four physical slots reduces the cost of slot injection molding compared to antenna designs with six or eight slots or more, thereby effectively reducing the cost of the antenna module. Furthermore, reducing the number of slots in the device frame SS10 also improves the overall structural strength of the communication device, avoiding the risk of deformation caused by multiple slots.

[0114] In an exemplary embodiment, the first antenna D311 is a main antenna, and the resonant frequency of the first antenna D311 covers the full frequency band of the 4G cellular antenna; the fourth antenna D213 is a diversity antenna, and the resonant frequency of the fourth antenna D213 covers the full frequency band of the 4G cellular antenna.

[0115] Among them, the main antenna refers to the antenna unit that undertakes the main signal receiving and transmitting functions of the communication equipment. It can be directly associated with the RF front-end power amplifier (PA) and low-noise amplifier (LNA). Its performance can directly affect the throughput and stability of the communication link.

[0116] A diversity antenna may refer to an antenna unit used to receive diversity signals. It may improve the signal reception quality through spatial diversity, polarization diversity, or frequency diversity technology, and usually does not participate in the transmission function.

[0117] Exemplarily, the first antenna D311 is the main antenna, and the antenna resonant frequency of the first antenna D311 covers the full frequency band of the 4G cellular main antenna, such as, the low frequency can cover 600MHz~960MHz, the medium frequency can cover 1710MHz~2170MHz, and the high frequency can cover 2300MHz~2690MHz; the first antenna D311 can support the B71 / B14 / B17 low frequency bands in North America, and can support the main signal transmission and reception functions of 5G SA and NSA.

[0118] The fourth antenna D213 is a diversity antenna. The antenna resonant frequency of the fourth antenna D213 covers the full frequency band of the 4G cellular diversity antenna, such as the low frequency can cover 600MHz~960MHz, the medium frequency can cover 1710MHz~2170MHz, and the high frequency can cover 2300MHz~2690MHz; the first antenna D311 can support the B71 / B14 / B17 low frequency bands in North America, and can support the main signal transmission and reception functions of 5G SA and NSA.

[0119] Optionally, the first antenna D311 and the fourth antenna D213 of this embodiment are LTE co-radiator and co-frequency antenna designs. In this case, the antenna module may further include an antenna tuning circuit for tuning the frequency bands of the first antenna D311 and the fourth antenna D213.

[0120] Optionally, the full-band cellular main antenna and the full-band cellular diversity antenna may cover common LTE FDD (frequency division duplex) frequency bands, such as Band 1, Band 2, Band 3, ..., Band 28, Band 66, and the like.

[0121] In this embodiment, by configuring the first antenna D311 as the main antenna and the fourth antenna D213 as the diversity antenna, and adopting an LTE co-radiator and co-frequency design, and with the antenna resonant frequency covering the full 4G cellular antenna frequency band, the antenna module is adaptable to multiple network standards. Furthermore, the main and diversity antennas share the same metal frame segment as the radiator, reducing physical gaps while isolating the feed point from the current path through optimized position, enabling independent operation of the main transmit link and the diversity receive link, improving antenna isolation, and thus enhancing communication reliability.

[0122] In an exemplary embodiment, Figure 1 and Figure 2 As shown, the fourth antenna D213 and the first antenna D311 share the first frame segment SS2; the module also includes:

[0123] A signal source 1 of the first antenna is arranged at a first position of the first frame segment SS2;

[0124] a first tuning circuit G141, wherein a first end of the first tuning circuit G141 is connected to the second position of the first frame segment SS2, and a second end of the first tuning circuit G141 is grounded;

[0125] A first matching circuit is provided in an area of the device cover 12 corresponding to a preset middle position of the first frame segment SS2; the first matching circuit is connected to the middle area of the first frame segment SS2, and a second end of the first matching circuit is grounded;

[0126] a second tuning circuit G121, wherein a first end of the second tuning circuit G121 is connected to a third position of the first frame segment SS2, and a second end of the second tuning circuit G121 is grounded;

[0127] The signal source 4 of the fourth antenna is arranged at the fourth position of the first frame segment SS2;

[0128] The directions from the first gap D31 to the second gap D21 are: first position, second position, middle area position, third position, and fourth position.

[0129] The first frame segment SS2 refers to a specific metal area between the first slot D31 and the second slot D21 in the metal frame of the device cover 12, and can serve as a shared radiator for the fourth antenna D213 and the first antenna D311. The signal source can refer to a feed point provided on the radiator. In this embodiment, the antenna signal source is provided on the device frame SS10.

[0130] The tuning circuit can be composed of adjustable capacitors, inductors, or switching elements, and can be used to dynamically adjust the antenna's resonant frequency or impedance matching. The first tuning circuit G141 can be used to tune the signal source 1 for the first antenna; the second tuning circuit G121 can be used to tune the signal source for the fourth antenna D213. The matching circuit can be a network composed of fixed or adjustable passive components (such as capacitors and inductors) that can match the antenna input impedance with the impedance of the RF front end, reducing signal reflections. The first matching circuit can refer to the matching circuit for the first frame segment SS2.

[0131] For example, along the first frame segment SS2, from the first slot D31 to the second slot D21, the following layouts may be arranged in sequence: first position: signal source 1 of the first antenna (feeding point of the first antenna D311); second position: grounding point of the first tuning circuit G141; middle position: grounding point of the first matching circuit; third position: grounding point of the second tuning circuit G121; fourth position: signal source 4 of the fourth antenna (feeding point of the fourth antenna D213).

[0132] Optionally, the working mode of the first antenna D311 that excites the signal source can be connected to the core wire of the RF coaxial line through a solder pad or a spring clip, and the feeding point is directly connected to the metal frame. One end of the first tuning circuit G141 is connected to the frame segment, and the other end is grounded. The equivalent electrical length of the first frame segment SS2 can be changed by adjusting the capacitance value to achieve frequency tuning in the low frequency band (600-960MHz). The first matching circuit can be a π-type or T-type LC network, which can be used to connect the middle area of the first frame segment SS2 and the ground plane. The second tuning circuit G121 can be similar to the first tuning circuit G141, but can be mainly optimized for the high frequency band (2.3-2.69GHz). The signal source 4 of the fourth antenna is another feeding point independent of the first antenna D311, which can be used to excite the diversity reception mode of the fourth antenna D213.

[0133] In this embodiment, a tuning circuit enables low-frequency co-frequency isolation of the two antennas, enabling independent optimization of low and high frequencies. The feed points of the first antenna D311 and the fourth antenna D213 are located at opposite ends of the frame segment, and the first matching circuit in between provides electrical isolation, thereby improving isolation. This reduces physical gaps while optimizing the feed point locations and isolating the current path, enabling independent operation of the main transmission link and the diversity reception link, improving antenna isolation, and thus enhancing communication reliability.

[0134] In an exemplary embodiment, Figure 1 and Figure 2 As shown, the first matching circuit may specifically include:

[0135] The DC isolation circuit G13 is provided corresponding to the middle point of the first frame segment SS2 . A first end of the DC isolation circuit G13 is connected to the fifth position of the first frame segment SS2 , and a second end thereof is grounded.

[0136] The first DC blocking filter circuit G12 has a first end connected to the sixth position of the first frame segment SS2 and a second end grounded.

[0137] The second DC blocking filter circuit G14 has a first end connected to the seventh position of the first frame segment SS2 and a second end grounded.

[0138] The sixth position and the seventh position are symmetrically arranged at a preset distance from the fifth position.

[0139] The DC blocking circuit G13 can be composed of capacitors, blocking the DC component and allowing only AC RF signals to pass through, thereby preventing DC bias from affecting the antenna radiator. The DC blocking filter circuit can integrate filtering elements (such as inductors and capacitors) with the DC blocking function to implement bandpass or bandstop filtering in specific frequency bands to suppress out-of-band interference.

[0140] Exemplarily, the DC blocking circuit G13 is disposed at the midpoint (fifth position) of the first frame segment SS2 as the center of symmetry for the current distribution. The first end of the DC blocking circuit G13 can be connected to the metal frame segment at the fifth position via a solder pad or conductive adhesive, and the second end is used for grounding. For example, it can be connected to the internal ground plane of the device or other grounding areas of the metal cover. The first DC blocking filter circuit G12 is located on one side of the fifth position and is disposed at a sixth position at a preset distance from the fifth position. The second DC blocking filter circuit G14 is disposed on the other side of the fifth position and is disposed at a seventh position symmetrically distributed with the sixth position. The seventh position is at the same preset distance from the fifth position as the sixth position is from the fifth position.

[0141] In this embodiment, the first DC blocking filter circuit G12 and the second DC blocking filter circuit G14 can improve the low-frequency isolation problem and DC isolation grounding of the main and diversity antennas. The DC blocking grounding network structure of the DC blocking circuit G13 provides a reference channel for the main and diversity antenna SAR reduction circuit, thereby realizing the FCC and CE certified SAR reduction solution.

[0142] In an exemplary embodiment, the length of the first frame segment SS2 is 160-180 mm; the preset distance is 3-5 mm.

[0143] For example, the physical length of the main and diversity LTE antennas is a quarter wavelength at low frequencies. The length of the first frame segment SS2 can be 160-180 mm, ensuring good antenna radiation performance. The first DC blocking filter circuit G12 and the second DC blocking filter circuit G14 can be located 3-5 mm on either side of the DC blocking filter circuit G13, for example, with a preset distance of 3 mm. This effectively achieves low-frequency isolation between the first antenna D311 and the fourth antenna D213, and allows for DC isolation to be grounded.

[0144] In an exemplary embodiment, Figure 1 and Figure 2As shown, the first frame segment SS2, which is approximately 160-180 mm long, serves as the antenna radiator. Located at the center of the radiator's metal frame are the first DC blocking filter circuit G12, the second DC blocking filter circuit G13, and the matching circuit G14, which are connected to ground. The DC blocking filter G13 is located at the center of the main and diversity antenna metal frames. The first and second DC blocking filters G12 and G14 are located approximately 3-5 mm to either side of the DC blocking filter G13. The first and second DC blocking filters G12 and G14 form a DC blocking circuit G13 and a filter circuit. The DC blocking filter G13 can include a DC blocking capacitor or a DC blocking device. The first frame segment SS2 serves as the antenna radiator. It features a co-radiator design with the first antenna D311 (main antenna) and the fourth antenna D213 (diversity antenna), arranged symmetrically around the DC blocking filter G13. The physical length of the main and diversity LTE antennas is a quarter wavelength at low frequencies, ensuring good antenna radiation performance.

[0145] The first antenna D311 includes a signal source 1 (the first antenna of the 4G / 5G main antenna) and a second tuning circuit G121. This second tuning circuit G121 includes antenna tuning switches, isolation, and impedance matching circuits, effectively tuning the low-frequency bands (B71, B28, B20, B5, and B8) and the mid- and high-frequency bands. By adjusting the actual antenna impedance to different inductance and capacitance values, the antenna signal achieves optimal radiation performance, meeting the OTA standards of North American and European operators. The fourth antenna D213 includes a signal source 4 (the fourth antenna of the 4G / 5G network) and a first tuning circuit G141. This first tuning circuit G141 includes antenna tuning switches, isolation, and impedance matching circuits, effectively tuning the low-frequency bands (B71, B28, B20, B5, and B8) and the mid- and high-frequency bands. By adjusting the actual antenna impedance to different inductance and capacitance values, the antenna signal achieves optimal reception performance, meeting the OTA standards of North American and European operators.

[0146] In this embodiment, the first antenna D311 of the main antenna and the fourth antenna D213 of the diversity antenna are LTE co-radiator and co-frequency antenna structures. Conventional co-radiator antennas are designed with frequency bands staggered with medium and high frequencies or ultra-high frequencies to reduce co-frequency interference problems. This application provides a structural setting of the main antenna and diversity antenna layout co-radiator for the entire LTE frequency band, so that the main and diversity antennas both cover low / medium / high frequency bands. In the design of two co-frequency antennas, in the limited space of the metal flat plate, the lower the frequency band, the worse the co-frequency isolation, resulting in a decrease in antenna performance and becoming a technical bottleneck for the terminal product antenna. This embodiment can solve the problem of low-frequency co-frequency isolation of the two antennas while reducing the number of gaps.

[0147] In an exemplary embodiment, the second antenna D312 is a main antenna, and the resonant frequency of the second antenna D312 covers the SUB-6G antenna frequency band.

[0148] The third antenna D412 is a diversity antenna, and the resonant frequency of the third antenna D412 covers the intermediate frequency and high frequency of the SUB-6G frequency band included in the 5G frequency band.

[0149] The seventh antenna 14 is an all-in-one antenna, and the resonant frequency of the seventh antenna 14 covers antenna frequency bands of multiple satellite navigation systems, WiFi antenna frequency bands, and Bluetooth antenna frequency bands.

[0150] The eighth antenna 19 is a 5G ENDC antenna, and the resonant frequency of the eighth antenna 19 covers the n20 and n28 antenna frequency bands.

[0151] For example, the antenna resonant frequency of the second antenna D312 covers the SUB-6G antenna frequency band, covering frequencies from 3.3GHz to 5GMHz, supporting n77 / n78 / n79, meeting the 5G communication protocols in North America, Europe, and China, and the main signal transmission and reception functions of SA and NSA. The antenna resonant frequency of the third antenna D412 covers the SUB-6G band of the 5G antenna frequency band, with a frequency coverage bandwidth of 1710MHz to 4.2GHz, supporting multi-band MIMO technology, and meeting the signal reception functions of SA and NSA.

[0152] Alternatively, as Figure 1 As shown, the second antenna D312 and the third antenna D412 share the second frame segment SS5 of the metal frame. The second antenna D312 covers the n77 / 78 / n79 signals and the same-frequency coverage of the third antenna D412 produces co-frequency interference. The metal frame SS5 is provided with a first grounding circuit G15G15 and a second grounding circuit G16G16, which can improve and solve the risk of isolation of the n77 / n78 / n79 signals of the dual antennas at the same frequency.

[0153] The seventh antenna 14 can be a three-in-one antenna, and its functions can cover GPS / Beidou / GNSS+WiFi2.4GHz / 5GHz / 6GHz+Bluetooth. The antenna resonant frequency of the seventh antenna 14 covers 1.575~1.650GHz, 2.4~2.5GHz, and 5~7.125GHz. Figure 1 As shown, the seventh antenna 14 can be set in the decorative area 16 of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and the traditional FPC process, and be mounted on the plastic bracket of the rear camera deco decorative part. The antenna area meets 400mm².

[0154] like Figure 1As shown, the eighth antenna 19 is a 5G ENDC antenna, and the signal source 8 of the eighth antenna is also set at the second preset position. The antenna resonant frequency of the eighth antenna 19 covers the n20 and n28 antenna bands. The n20 supports both transmit and receive functions and supports the ENDC combination of n20 and n28, meeting the technical requirements of European low-band + low-band ENDC combination operators.

[0155] In this embodiment, by setting the second antenna D312 as the main antenna and the third antenna D412 as the diversity antenna, and adopting a common radiator and frequency design, and the antenna resonant frequency can cover the SUB-6G antenna band, the second antenna D312, the third antenna D412, and the eighth antenna 19 are used in conjunction with each other to achieve the multi-input and multi-output performance index requirements of the antenna module. The seventh antenna 14 is also used to achieve GPS positioning and WiFi and Bluetooth functions, so that the antenna module can have the adaptability of multiple standard networks. At the same time, the main and diversity antennas share the same metal frame segment as the radiator. While reducing physical gaps, the feed point position can be optimized and isolated from the current path to achieve independent operation of the main transmission link and the diversity reception link, improve antenna isolation, and thus improve communication reliability.

[0156] In an exemplary embodiment, the first slit D31 and the second slit D21 are disposed on the first long frame, and the second preset position is disposed close to the first long frame.

[0157] Exemplarily, the eighth antenna 19 (5G ENDC antenna) is disposed near the first long frame but inside the device cover 12 (e.g., near the center of the long frame). For example, the eighth antenna 19 is disposed near the first long frame but not directly in contact with the gap area.

[0158] In this embodiment, the eighth antenna 19 can form an extended ground reference plane through the adjacent metal cover area to improve the low-frequency radiation efficiency.

[0159] In an exemplary embodiment, the fifth antenna D212 is a main antenna, and the resonant frequency of the fifth antenna D212 covers the B21 frequency band in the 4G LTE frequency band and the SUB-6G frequency band included in the 5G frequency band;

[0160] The sixth antenna D112 is a 5G ENDC antenna, and the resonant frequency of the sixth antenna D112 covers the mid-frequency band, high-frequency band and sub6G band included in the 4G frequency band.

[0161] Exemplarily, the antenna resonant frequency of the fifth antenna D212 covers the B21 / B11 and SUB-6G antenna frequency bands, i.e., B21 / B11 frequency: 1.42GHz~1.45GMHz, n77 / n78 / n79 frequency: 3.3GHz~4.2GMHz, which can meet the 5G communication protocols in Japan and Europe, support the Japanese operator B21 main transmission and reception functions, and the MIMO diversity signal reception function of the SUB-6G antenna frequency band.

[0162] The antenna resonant frequency of the sixth antenna D112 covers the medium frequency / high frequency / SUB-6G bands of 4G and 5G, with a frequency coverage bandwidth of 1710MHz~4.2GHz. It supports medium frequency / high frequency / SUB-6G multi-frequency MIMO technology and can be used for the transmitting and receiving antenna functions of medium frequency / high frequency ENDC. It can be combined with SUB-6G and other antennas for ENDC functions and CA functions to meet the signal transmission and reception functions of operators SA and NSA.

[0163] Alternatively, as Figure 1 As shown, the fifth antenna D212 and the sixth antenna D112 share the third metal frame segment SS3. The n77 / n78 / n79 signals covered by the fifth antenna D212 interfere with the co-frequency coverage of the sixth antenna D112, resulting in co-channel interference. A second matching circuit (including third matching circuit G10 and fourth matching circuit G11) is provided in third frame segment SS3 to mitigate the risk of isolation of the n77 / n78 / n79 signals from the dual antennas. By tuning the inductance and capacitance of matching circuits G10 and G11, the SUB-6G frequency band isolation between the fifth and sixth antennas D212 and D112 is improved, ensuring isolation and grounding. This provides a reference channel for the main antenna's SAR reduction circuit, achieving FCC and CE certification for SAR reduction.

[0164] As an example, for the fifth antenna D212, the signal feed 5 can be arranged at a position 10 mm away from the D21 break, which is consistent with the 1 / 4 wavelength length of the operating frequency in the 5G frequency band; the tuning and matching circuit G11 is located at the corner of the metal frame, and the physical length of the signal feed 5 and the tuning and matching circuit G11 is approximately 1 / 4 wavelength length of the B21&B11 frequency band, that is, about 45 mm in length.

[0165] As an example, the signal feed 6 of the sixth antenna D112 can be arranged at a position 10mm away from the break D11, which meets the 1 / 4 wavelength length of the operating frequency in the 5G frequency band; the sixth antenna D112 arranges the tuning circuit G131 of the antenna switch, which is used for bandwidth switching in the medium and high frequency bands to ensure the antenna frequency band performance index requirements; the switch tuning circuit G131 is located at a position approximately 13mm from the signal 6, and this position can be at the zero point of the antenna current, which is convenient for tuning to the optimal state. The tuning matching circuit G10 is located approximately 35mm away from the signal 6, and the physical length of the metal frame diagram is approximately 1 / 4 wavelength length of the B3 frequency band.

[0166] In this embodiment, the fifth antenna D212 is responsible for the primary communication links of the 4G low-band and 5G mid-band, serving as the primary antenna for signal transmission and reception. The sixth antenna D112 supports 4G / 5G dual connectivity (ENDC) and can be used for high-band signal enhancement and diversity reception. This can be combined with other antennas to meet the antenna module's 4G+5G NR 4*4 MIMO performance requirements.

[0167] In an exemplary embodiment, the second antenna D312 is a GPS antenna, and the resonant frequency of the second antenna D312 covers antenna frequency bands of multiple satellite navigation systems;

[0168] The third antenna D412 is a MIMO diversity antenna, and the resonant frequency of the third antenna D412 covers the 5G frequency band as well as the high frequency and SUB-6G frequency bands.

[0169] The seventh antenna 14 is a WiFi antenna, and the resonant frequency of the seventh antenna 14 covers the antenna frequency band of WiFi and the antenna frequency band of Bluetooth.

[0170] The eighth antenna 19 is a 5G diversity antenna, and the resonant frequency of the eighth antenna 19 covers the SUB-6G frequency band included in the 5G frequency band.

[0171] For example, the second antenna D312's antenna resonant frequency covers the GPS, BDS, GLONAS, and Galileo antenna bands, with a frequency range of 1.572 GHz to 1.65 GHz, meeting satellite positioning communication protocols in North America, Europe, and China. The third antenna D412's antenna resonant frequency covers the SUB-6G band of the 5G antenna band, with a frequency coverage bandwidth of 1710 MHz to 4.2 GHz, supporting multi-band MIMO technology and meeting SA and NSA signal reception functions.

[0172] Alternatively, as Figure 2As shown, the second antenna D312 and the third antenna D412 share the second frame segment SS5 of the metal frame. The second antenna D312 covers the n77 / 78 / n79 signals and the same frequency coverage of the third antenna D412 produces multi-frequency interference. The metal frame SS5 is provided with a first grounding circuit G15 and a second grounding circuit G16, which can improve and solve the risk of isolation of the n77 / n78 / n79 signals of the dual antennas at the same frequency.

[0173] The seventh antenna 14 is a WiFi antenna. The functions of the seventh antenna 14 cover WiFi 2.4GHz / 5GHz / 6GHz+Bluetooth. The antenna resonant frequency of the seventh antenna 14 covers 2.4~2.5GHz and 5~7.125GHz. Figure 2 As shown, the seventh antenna 14 can be set in the decorative area 16 of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and the traditional FPC process, and be mounted on the plastic bracket of the rear camera deco decorative part. The area of the seventh antenna 14 can meet 300mm².

[0174] like Figure 2 As shown, the eighth antenna 19 is a 5G diversity antenna. The eighth antenna 19 can be designed using the PCB process resonant cavity antenna principle. The antenna size is 21*18*2.5mm. The eighth antenna 19 includes a shielding cover S99, a PCB board 13 sub-SS98, a fifth matching circuit G19, a signal source 8, a first antenna D311 ground feed G191, a second antenna D312 ground feed G192, and a third antenna D412 ground feed G193; the antenna resonant impedance is tuned by the fifth matching circuit G19 to optimize the antenna bandwidth, and the frequency mode tuning is performed by the first antenna D3 The matching of 11 ground feed G191, the second antenna D312 ground feed G192, and the third antenna D412 ground feed G193, and the frequency mode in-band tuning and filter tuning are performed by capacitors or inductors to make the S11 multi-mode resonant mode operate at 3.2GHz, 4.2GHz, and 5GHz, covering the n77 / n78 / n79 frequency bands of SUB-6G, and supporting the ENDC and CA combination technologies of 4*4MIMO in the n77 / n78 / n79 frequency bands, meeting the ENDC combination operator technology requirements of operators in China, Europe, Japan, and North America.

[0175] In this embodiment, by configuring the second antenna D312 as a GPS antenna and the third antenna D412 as a diversity antenna, and adopting a common radiator design, the antenna resonant frequency of the second antenna D312 covers the antenna frequency bands of multiple satellite navigation systems, and the antenna resonant frequency of the third antenna D412 can cover the SUB-6G antenna frequency band. The eighth antenna 19 cooperates with the third antenna D412 to achieve 5G diversity, covering the SUB-6G frequency band included in the 5G frequency band. The seventh antenna 14 also cooperates with the second antenna D312 to achieve GPS positioning as well as WiFi and Bluetooth functions, enabling the antenna module to adapt to multiple network standards. Furthermore, the second antenna D312 and the third antenna D412, as well as the seventh antenna 14 and the eighth antenna 19, share the same metal frame segment as a radiator. This reduces physical gaps while isolating the feed point from the current path through optimized position, enabling independent operation of the main transmission link and the diversity reception link, improving antenna isolation and thereby enhancing communication reliability.

[0176] In an exemplary embodiment, Figure 2 As shown, the first slit D31 and the second slit D21 are arranged in the first long frame, the second preset position is arranged close to the second long frame, and the second long frame is arranged opposite to the first long frame.

[0177] Exemplarily, the eighth antenna 19 can be designed using the PCB process resonant cavity antenna principle, with an antenna size of 21*18*2.5mm. The eighth antenna 19 includes a shielding cover S99SS99, a PCB board 13 sub-SS98, a fifth matching circuit G19, a signal source 8, a first antenna D311 ground feed G191, a second antenna D312 ground feed G192, and a third antenna D412 ground feed G193; the antenna resonant impedance is tuned by the fifth matching circuit G19 to optimize the antenna bandwidth, and the frequency mode is tuned by the first antenna D311 ground feed G191, the second antenna D312 ground feed G192, and the third antenna D412 ground feed G193 are matched, and the capacitors or inductors are used for frequency mode in-band tuning and filter tuning, so that the S11 multi-mode resonant mode can operate at 3.2GHz, 4.2GHz, and 5GHz, covering the n77 / n78 / n79 frequency bands of SUB-6G, and supporting the ENDC and CA combination technologies of 4*4MIMO in the n77 / n78 / n79 frequency bands, meeting the ENDC combination operator technology requirements of operators in China, Europe, Japan, and North America.

[0178] In an exemplary embodiment, the fifth antenna D212 is a main antenna, and the resonant frequency of the fifth antenna D212 covers the B21 frequency band in the 4G LTE frequency band and the SUB-6G antenna frequency band;

[0179] The sixth antenna D112 is a 5G ENDC antenna, and the resonant frequency of the sixth antenna D112 covers the full frequency band of 4G and the SUB-6G frequency band included in the 5G frequency band.

[0180] Exemplarily, the antenna resonant frequency of the fifth antenna D212 covers the B21 / B11 and SUB-6G antenna frequency bands, i.e., B21 / B11 frequency: 1.42GHz~1.45GMHz, n77 / n78 / n79 frequency: 3.3GHz~4.2GMHz, which can meet the 5G communication protocols in Japan and Europe, support the Japanese operator B21 main transmission and reception functions, and the MIMO diversity signal reception function of the SUB-6G antenna frequency band.

[0181] The antenna resonant frequency of the sixth antenna D112 covers the full frequency band of 4G and the SUB-6G frequency band of 5G, realizing multi-frequency MIMO technology functions. The low frequency covers 600MHz~960MHz, the medium frequency covers 1710MHz~2170MHz, and the high frequency covers 2300MHz~2690MHz; it can be used for ENDC B20 / B28 low frequency band. The sixth antenna D112 can be equipped with an antenna switch G131 for low, medium and high frequency switching to meet the signal main set transmission and reception functions of SA and NSA.

[0182] Alternatively, as Figure 2 As shown, the fifth antenna D212 and the sixth antenna D112 share the third metal frame segment SS3. The n77 / n78 / n79 signals covered by the fifth antenna D212 interfere with the co-frequency coverage of the sixth antenna D112, resulting in co-channel interference. A second matching circuit (including third matching circuit G10 and fourth matching circuit G11) is provided in third frame segment SS3 to mitigate the risk of isolation of the n77 / n78 / n79 signals from the dual antennas. By tuning the inductance and capacitance of matching circuits G10 and G11, the SUB-6G frequency band isolation between the fifth and sixth antennas D212 and D112 is improved, ensuring isolation and grounding. This provides a reference channel for the main antenna's SAR reduction circuit, achieving FCC and CE certification for SAR reduction.

[0183] In this embodiment, the fifth antenna D212 is responsible for the primary communication links for the 4G low-band and 5G mid-band signals, serving as the primary antenna for both signal transmission and reception. The sixth antenna D112 supports 4G / 5G dual connectivity (ENDC), enabling signal enhancement and diversity reception across all 4G frequency bands and high frequency bands. This, combined with other antennas, allows the antenna module to meet the 4G+5G NR4*4 MIMO performance requirements.

[0184] In an exemplary embodiment, Figure 2 As shown, the module also includes:

[0185] an antenna switch G131 , where a first end of the antenna switch G131 is connected to the sixth antenna D112 , and a second end of the antenna switch G131 is grounded;

[0186] The antenna switch G131 is used for switching the frequency band of the sixth antenna D112.

[0187] Exemplarily, the sixth antenna D112 may be provided with an antenna switch G131 for switching between low, medium, and high frequencies to meet the signal main set transmission and reception functions of SA and NSA.

[0188] In an exemplary embodiment, Figure 1 and Figure 2 As shown, the sixth antenna D112 and the fifth antenna D212 share the third frame segment SS3; the module also includes:

[0189] There are at least two second matching circuits, a first end of each second matching circuit is connected to a different grounding point of the third frame segment SS3, and a second end of each second matching circuit is used for grounding.

[0190] For example, the fifth antenna D212 and the sixth antenna D112 share the third metal frame segment SS3. The n77 / n78 / n79 signals covered by the fifth antenna D212 interfere with the co-frequency coverage of the sixth antenna D112, generating co-channel interference. A second matching circuit (including a third matching circuit G10 and a fourth matching circuit G11) is provided in the third frame segment SS3 to mitigate the risk of isolating the n77 / n78 / n79 signals from the two antennas. By tuning the inductance and capacitance of matching circuits G10 and G11, the SUB-6G frequency band isolation between the fifth and sixth antennas D212 and D112 is improved, ensuring isolation and grounding. This provides a reference channel for the main antenna's SAR reduction circuit, achieving FCC and CE certification for SAR reduction.

[0191] In an exemplary embodiment, Figure 1 and Figure 2 As shown, the third antenna D412 and the second antenna D312 share the second frame segment SS5;

[0192] The second frame segment SS5 is provided with at least two grounding points for grounding;

[0193] Exemplarily, the second antenna D312 and the third antenna D412 share the second frame segment SS5 of the metal frame. The second antenna D312 covers the n77 / 78 / n79 signals and the same frequency coverage of the third antenna D412 produces multi-frequency interference. The metal frame SS5 is provided with a first grounding circuit G15G15 and a second grounding circuit G16G16, which can improve and solve the risk of isolation of the n77 / n78 / n79 signals of the same frequency of dual antennas.

[0194] In an exemplary embodiment, Figure 1and Figure 2 As shown, the first preset position is the rear camera area of the communication device.

[0195] Exemplarily, the seventh antenna 14 can be set in the decorative area of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and the traditional FPC process, and be mounted on the decorative plastic bracket of the rear camera area. The area of the seventh antenna 14 can meet 300mm².

[0196] In this embodiment, the seventh antenna 14 is integrated into the decorative plastic bracket of the rear camera area, making full use of the previously ineffectively utilized space inside the device and avoiding physical interference with other functional modules of the communication device, thereby achieving efficient deployment of the antenna in a compact body structure.

[0197] In an exemplary embodiment, Figure 1 and Figure 2 As shown, the third antenna D412 and the second antenna D312 share the second frame segment SS5; the sixth antenna D112 and the fifth antenna D212 share the third frame segment SS3.

[0198] The signal source 2 of the second antenna is arranged on the long side corresponding to the second frame segment SS5 and close to the first slot D31.

[0199] The signal source 3 of the third antenna is arranged on the short side corresponding to the second frame segment SS5 and close to the third slot D41.

[0200] The signal source 5 of the fifth antenna is arranged on the long side corresponding to the third frame segment SS3 and close to the second slot D21.

[0201] The signal source 6 of the sixth antenna is arranged on the short side corresponding to the third frame segment SS3 and close to the fourth slot D11.

[0202] The second frame segment SS5 refers to the continuous metal area of the metal frame on the first long side or first short side of the device, separated by the first slit D31 and the third slit D41. It can serve as a shared radiator for the second antenna D312 and the third antenna D412. The third frame segment SS3 refers to the continuous metal area of the metal frame on the first long side or second short side, separated by the third slit D41 and the fourth slit D11. It can serve as a shared radiator for the fifth antenna D212 and the sixth antenna D112.

[0203] Exemplarily, the signal source 2 of the second antenna is set on the long frame of the second frame segment SS5, and the signal source 3 of the third antenna is set on the short frame of the second frame segment SS5, that is, the second frame segment SS5 can be a frame segment with a folded angle, that is, a continuous connection segment at the connection between the first long frame and the first short frame, the signal source 2 of the second antenna is set in a section of the second frame segment SS5 where the long frame is located, the signal source 3 of the third antenna is set in a section of the second frame segment SS5 where the short frame is located, and the signal source 2 of the second antenna is set close to the first gap D31, and the signal source 3 of the third antenna is set close to the third gap D41.

[0204] The signal source 5 of the fifth antenna is set on the long frame of the third frame segment SS3, and the signal source 6 of the sixth antenna is set on the short frame of the third frame segment SS3, that is, the third frame segment SS3 can be a frame segment with a folded angle, that is, a continuous connection segment at the connection between the first long frame and the second short frame. The signal source 5 of the fifth antenna is set in a section of the third frame segment SS3 where the long frame is located, and the signal source 6 of the sixth antenna is set in a section of the third frame segment SS3 where the short frame is located, and the signal source 5 of the fifth antenna is set close to the second gap D21, and the signal source 6 of the sixth antenna is set close to the fourth gap D11.

[0205] Optionally, the signal source 7 of the seventh antenna is located near the first preset position. The signal source of the eighth antenna is located near the second preset position.

[0206] In this embodiment, the second frame segment SS5 is shared by the second antenna D312 and the third antenna D412, and their signal sources are respectively located at the positions of the first long frame and the first short frame close to the gap; the third frame segment SS3 is shared by the fifth antenna D212 and the sixth antenna D112, and their signal sources are respectively located at the positions of the first long frame and the second short frame close to the gap; in this way, the staggered layout can be combined with an adjustable matching circuit, etc. to achieve signal isolation between the two antennas.

[0207] In a specific embodiment, Figure 1 As shown,

[0208] The first antenna D311 and the fourth antenna D213 include:

[0209] The first antenna D311 is the main antenna. The antenna resonant frequency of the first antenna D311 covers the full frequency band of the 4G cellular antenna. For example, the low frequency can cover 600MHz~960MHz, the medium frequency can cover 1710MHz~2170MHz, and the high frequency can cover 2300MHz~2690MHz; the first antenna D311 can support the B71 / B14 / B17 low frequency bands in North America, and can support the main signal transmission and reception functions of 5G SA and NSA.

[0210] The fourth antenna D213 is a diversity antenna. The antenna resonant frequency of the fourth antenna D213 covers the full frequency band of the 4G cellular antenna, such as the low frequency can cover 600MHz~960MHz, the medium frequency can cover 1710MHz~2170MHz, and the high frequency can cover 2300MHz~2690MHz; the first antenna D311 can support the B71 / B14 / B17 low frequency bands in North America, and can support the main signal transmission and reception functions of 5G SA and NSA.

[0211] The fourth antenna D213 shares the first frame segment SS2 with the first antenna D311, and is an LTE common radiator and same-frequency antenna design. The first frame segment SS2 is the antenna radiator with a length of approximately 160~180mm. At the center of the metal frame of the radiator, there are a first DC blocking filter circuit G12, a DC blocking circuit G13, and a second DC blocking filter circuit G14 connected between the matching circuit and the ground. The DC blocking circuit G13 is located at the center of the metal frame of the main diversity antenna. The first DC blocking filter circuit G12 and the second DC blocking filter circuit G14 are respectively located approximately 3~5mm on both sides of the DC blocking circuit G13. The first DC blocking filter circuit G12 and the second DC blocking filter circuit G14 are a DC blocking circuit G13 and a filter circuit. The DC blocking circuit G13 is a DC blocking circuit G13 and can include a DC blocking capacitor or a DC blocking device. The first frame segment SS2 is the antenna radiator, and is equipped with a co-radiator design of the first antenna D311 (main antenna) and the fourth antenna D213 (diversity antenna). The structure is symmetrical with the DC blocking circuit G13 as the center. The physical length of the main and diversity LTE antennas is the physical length of 1 / 4 wavelength at low frequency, which meets the requirements of good antenna radiation performance.

[0212] The first antenna D311 includes a signal source 1 for the first antenna of the 4G / 5G main antenna and a second tuning circuit G121. This second tuning circuit G121 includes an antenna tuning switch, isolation, and impedance matching circuits, effectively tuning the low-frequency bands B71, B28, B20, B5, and B8, as well as the mid- and high-frequency bands. By adjusting the actual antenna impedance to different inductance and capacitance values, the antenna signal achieves optimal radiation performance, meeting the OTA standards of North American and European operators. The fourth antenna D213 includes a signal source 4 for the fourth 4G / 5G antenna and a first tuning circuit G141. This first tuning circuit G141 includes an antenna tuning switch, isolation, and impedance matching circuits, effectively tuning the low-frequency bands B71, B28, B20, B5, and B8, as well as the mid- and high-frequency bands. By adjusting the actual antenna impedance to different inductance and capacitance values, the antenna signal achieves optimal reception performance, meeting the OTA standards of North American and European operators.

[0213] The second antenna D312 and the third antenna D412 include:

[0214] The second antenna D312 is the main antenna. The antenna resonant frequency of the second antenna D312 covers the SUB-6G antenna band, covering frequencies from 3.3GHz to 4.2GHz, and supports n77 / n78 / n79, meeting the 5G communication protocols in North America, Europe, and China, and the main signal transmission and reception functions of SA and NSA. The third antenna D412 is the diversity antenna. The antenna resonant frequency of the third antenna D412 covers the SUB-6G band of the 5G antenna band, covering a bandwidth of 1710MHz to 4.2GHz, supporting multi-band MIMO technology, and meeting the signal reception functions of SA and NSA.

[0215] The second antenna D312 and the third antenna D412 share the second frame segment SS5 of the metal frame. The second antenna D312 covers the n77 / 78 / n79 signals and the third antenna D412 has the same frequency coverage, which causes co-frequency interference. The metal frame of the second frame segment SS5 is provided with a first grounding circuit G15G15 and a second grounding circuit G16G16, which can improve and solve the risk of isolation of the n77 / n78 / n79 signals of the dual antennas at the same frequency.

[0216] The signal source 2 of the second antenna is set on the long frame of the second frame segment SS5, and the signal source 3 of the third antenna is set on the short frame of the second frame segment SS5, that is, the second frame segment SS5 can be a frame segment with a folded angle, that is, a continuous connection segment at the connection between the first long frame and the first short frame. The signal source 2 of the second antenna is set in a section of the second frame segment SS5 where the long frame is located, and the signal source 3 of the third antenna is set in a section of the second frame segment SS5 where the short frame is located, and the signal source 2 of the second antenna is set close to the first gap D31, and the signal source 3 of the third antenna is set close to the third gap D41.

[0217] The fifth antenna D212 and the sixth antenna D112 include:

[0218] The fifth antenna D212 is the main antenna. The antenna resonant frequency of the fifth antenna D212 covers the B21 / B11 and SUB-6G antenna frequency bands, namely B21 / B11 frequency: 1.42GHz~1.45GMHz, n77 / n78 / n79 frequency: 3.3GHz~4.2GMHz, which can meet the 5G communication protocols in Japan and Europe, support the Japanese operator B21 main transmission and reception functions, and the MIMO diversity signal reception function of the SUB-6G antenna band.

[0219] The sixth antenna D112 is a 5G ENDC antenna. The antenna resonant frequency of the sixth antenna D112 covers the medium frequency / high frequency / SUB-6G bands of 4G and 5G, with a frequency coverage bandwidth of 1710MHz~4.2GHz. It supports medium frequency / high frequency / SUB-6G multi-frequency MIMO technology and can be used for the transmitting and receiving antenna functions of medium frequency / high frequency ENDC. It can be used with SUB-6G and other antennas for ENDC functions and CA function combinations to meet the signal transmission and reception functions of operators SA and NSA.

[0220] The fifth antenna D212 and the sixth antenna D112 share the third metal frame segment SS3. The n77 / n78 / n79 signals covered by the fifth antenna D212 interfere with the co-frequency coverage of the sixth antenna D112, resulting in co-channel interference. A second matching circuit (including third matching circuit G10 and fourth matching circuit G11) is installed in third frame segment SS3 to mitigate the risk of co-channel n77 / n78 / n79 signal isolation between the two antennas. By tuning the inductance and capacitance of matching circuits G10 and G11, the SUB-6G frequency band isolation between the fifth and sixth antennas D212 and D112 is improved, ensuring isolation and grounding. This provides a reference channel for the main antenna's SAR reduction circuit, achieving FCC and CE certification for SAR reduction.

[0221] The signal source 5 of the fifth antenna is set on the long frame of the third frame segment SS3, and the signal source 6 of the sixth antenna is set on the short frame of the third frame segment SS3, that is, the third frame segment SS3 can be a frame segment with a folded angle, that is, a continuous connection segment at the connection between the first long frame and the second short frame. The signal source 5 of the fifth antenna is set in a section of the third frame segment SS3 where the long frame is located, and the signal source 6 of the sixth antenna is set in a section of the third frame segment SS3 where the short frame is located, and the signal source 5 of the fifth antenna is set close to the second gap D21, and the signal source 6 of the sixth antenna is set close to the fourth gap D11.

[0222] The seventh antenna 14 and the eighth antenna 19 include:

[0223] The seventh antenna 14 can be a three-in-one antenna, and its functions can cover GPS / Beidou / GNSS+WiFi2.4GHz / 5GHz / 6GHz+Bluetooth. The antenna resonant frequency of the seventh antenna 14 covers 1.575~1.650GHz, 2.4~2.5GHz, and 5~7.125GHz. Figure 1 As shown, the seventh antenna 14 can be set in the decorative area 16 of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and the traditional FPC process, and be mounted on the plastic bracket of the rear camera deco decorative part. The antenna area meets 400mm².

[0224] The eighth antenna 19 is a 5G ENDC antenna, and the signal source 8 of the eighth antenna is also set at the second preset position. The antenna resonant frequency of the eighth antenna 19 covers the n20 and n28 antenna bands. The n20 supports both transmit and receive functions and supports the ENDC combination of n20 and n28, meeting the technical requirements of European low-band + low-band ENDC combination operators.

[0225] The seventh antenna 14 can be set in the decorative area of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and the traditional FPC process, and be mounted on the decorative plastic bracket of the rear camera area. The area of the seventh antenna 14 can meet 300mm².

[0226] The eighth antenna 19 (5G ENDC antenna) is disposed near the first long frame but inside the device cover 12 (e.g., near the center of the long frame). For example, the eighth antenna 19 is disposed near the first long frame but not directly in contact with the gap area.

[0227] The signal source 7 of the seventh antenna is arranged near the first preset position. The signal source of the eighth antenna is arranged near the second preset position.

[0228] In this embodiment, a 5G cellular antenna solution with a metal appearance and 4 slots can be implemented, supports a global network mode, supports 5G NR 4*4MIMO technology, reduces costs, and at the same time, the antenna performance meets the European and American operator standard certification, and the solution is easy to promote.

[0229] In a specific embodiment, Figure 2 As shown,

[0230] The first antenna D311 and the fourth antenna D213 include:

[0231] The first antenna D311 is the main antenna. The antenna resonant frequency of the first antenna D311 covers the full frequency band of the 4G cellular antenna. For example, the low frequency can cover 600MHz~960MHz, the medium frequency can cover 1710MHz~2170MHz, and the high frequency can cover 2300MHz~2690MHz; the first antenna D311 can support the B71 / B14 / B17 low frequency bands in North America, and can support the main signal transmission and reception functions of 5G SA and NSA.

[0232] The fourth antenna D213 is a diversity antenna. The antenna resonant frequency of the fourth antenna D213 covers the full frequency band of the 4G cellular antenna, such as the low frequency can cover 600MHz~960MHz, the medium frequency can cover 1710MHz~2170MHz, and the high frequency can cover 2300MHz~2690MHz; the first antenna D311 can support the B71 / B14 / B17 low frequency bands in North America, and can support the main signal transmission and reception functions of 5G SA and NSA.

[0233] The fourth antenna D213 shares the first frame segment SS2 with the first antenna D311, and is an LTE common radiator and same-frequency antenna design. The first frame segment SS2 is the antenna radiator with a length of approximately 160~180mm. At the center of the metal frame of the radiator, there are a first DC blocking filter circuit G12, a DC blocking circuit G13, and a second DC blocking filter circuit G14 connected between the matching circuit and the ground. The DC blocking circuit G13 is located at the center of the metal frame of the main diversity antenna. The first DC blocking filter circuit G12 and the second DC blocking filter circuit G14 are respectively located approximately 3~5mm on both sides of the DC blocking circuit G13. The first DC blocking filter circuit G12 and the second DC blocking filter circuit G14 are a DC blocking circuit G13 and a filter circuit. The DC blocking circuit G13 is a DC blocking circuit G13 and can include a DC blocking capacitor or a DC blocking device. The first frame segment SS2 is the antenna radiator, and is equipped with a co-radiator design of the first antenna D311 (main antenna) and the fourth antenna D213 (diversity antenna). The structure is symmetrical with the DC blocking circuit G13 as the center. The physical length of the main and diversity LTE antennas is the physical length of 1 / 4 wavelength at low frequency, which meets the requirements of good antenna radiation performance.

[0234] The first antenna D311 includes a signal source 1 for the first antenna of the 4G / 5G main antenna and a second tuning circuit G121. This second tuning circuit G121 includes an antenna tuning switch, isolation, and impedance matching circuits, effectively tuning the low-frequency bands B71, B28, B20, B5, and B8, as well as the mid- and high-frequency bands. By adjusting the actual antenna impedance to different inductance and capacitance values, the antenna signal achieves optimal radiation performance, meeting the OTA standards of North American and European operators. The fourth antenna D213 includes a signal source 4 for the fourth 4G / 5G antenna and a first tuning circuit G141. This first tuning circuit G141 includes an antenna tuning switch, isolation, and impedance matching circuits, effectively tuning the low-frequency bands B71, B28, B20, B5, and B8, as well as the mid- and high-frequency bands. By adjusting the actual antenna impedance to different inductance and capacitance values, the antenna signal achieves optimal reception performance, meeting the OTA standards of North American and European operators.

[0235] The second antenna D312 and the third antenna D412 include:

[0236] The second antenna D312 is a GPS antenna. Its resonant frequency covers the GPS, BDS, GLONAS, and Galileo frequency bands, ranging from 1.572 GHz to 1.65 GHz, meeting the satellite positioning communication protocols for North America, Europe, and China. The third antenna D412 is a diversity antenna. Its resonant frequency covers the 5G SUB-6G band, with a bandwidth of 1710 MHz to 4.2 GHz. It supports multi-band MIMO technology and meets the requirements for both SA and NSA signal reception.

[0237] The second antenna D312 and the third antenna D412 share the second frame segment SS5 of the metal frame. The second antenna D312 covers the n77 / 78 / n79 signals and the same frequency coverage of the third antenna D412 produces multi-frequency interference. The metal frame SS5 is provided with a first grounding circuit G15G15 and a second grounding circuit G16G16, which can improve and solve the risk of isolation of the n77 / n78 / n79 signals of the dual antennas at the same frequency.

[0238] The signal source 2 of the second antenna is set on the long frame of the second frame segment SS5, and the signal source 3 of the third antenna is set on the short frame of the second frame segment SS5, that is, the second frame segment SS5 can be a frame segment with a folded angle, that is, a continuous connection segment at the connection between the first long frame and the first short frame. The signal source 2 of the second antenna is set in a section of the second frame segment SS5 where the long frame is located, and the signal source 3 of the third antenna is set in a section of the second frame segment SS5 where the short frame is located, and the signal source 2 of the second antenna is set close to the first gap D31, and the signal source 3 of the third antenna is set close to the third gap D41.

[0239] The fifth antenna D212 and the sixth antenna D112 include:

[0240] The fifth antenna D212 is the main antenna. The antenna resonant frequency of the fifth antenna D212 covers the B21 / B11 and SUB-6G antenna frequency bands, namely B21 / B11 frequency: 1.42GHz~1.45GMHz, n77 / n78 / n79 frequency: 3.3GHz~4.2GMHz, which can meet the 5G communication protocols in Japan and Europe, support the Japanese operator B21 main transmission and reception functions, and the MIMO diversity signal reception function of the SUB-6G antenna band.

[0241] The sixth antenna D112 is a 5G ENDC antenna. The antenna resonant frequency of the sixth antenna D112 covers the full frequency band of 4G and the SUB-6G frequency band of 5G, realizing multi-frequency MIMO technology functions. The low frequency covers 600MHz~960MHz, the medium frequency covers 1710MHz~2170MHz, and the high frequency covers 2300MHz~2690MHz; it can be used for ENDC B20 / B28 low frequency bands. The sixth antenna D112 can be equipped with an antenna switch G131 for low, medium and high frequency switching to meet the signal main set transmission and reception functions of SA and NSA.

[0242] The sixth antenna D112 can be provided with an antenna switch G131 for switching between low, medium and high frequencies to meet the main set transmission and reception functions of SA and NSA signals.

[0243] The fifth antenna D212 and the sixth antenna D112 share the third metal frame segment SS3. The n77 / n78 / n79 signals covered by the fifth antenna D212 interfere with the co-frequency coverage of the sixth antenna D112, resulting in co-channel interference. A second matching circuit (including third matching circuit G10 and fourth matching circuit G11) is installed in third frame segment SS3 to mitigate the risk of co-channel n77 / n78 / n79 signal isolation between the two antennas. By tuning the inductance and capacitance of the second matching circuits G10 and G11, the SUB-6G frequency band isolation between the fifth and sixth antennas D212 and D112 is improved, ensuring isolation and grounding. This provides a reference channel for the main antenna's SAR reduction circuit, achieving FCC and CE certification for SAR reduction.

[0244] The signal source 5 of the fifth antenna is set on the long frame of the third frame segment SS3, and the signal source 6 of the sixth antenna is set on the short frame of the third frame segment SS3, that is, the third frame segment SS3 can be a frame segment with a folded angle, that is, a continuous connection segment at the connection between the first long frame and the second short frame. The signal source 5 of the fifth antenna is set in a section of the third frame segment SS3 where the long frame is located, and the signal source 6 of the sixth antenna is set in a section of the third frame segment SS3 where the short frame is located, and the signal source 5 of the fifth antenna is set close to the second gap D21, and the signal source 6 of the sixth antenna is set close to the fourth gap D11.

[0245] The seventh antenna 14 and the eighth antenna 19 include:

[0246] The seventh antenna 14 is a WiFi antenna. The functions of the seventh antenna 14 cover WiFi 2.4GHz / 5GHz / 6GHz+Bluetooth. The antenna resonant frequency of the seventh antenna 14 covers 2.4~2.5GHz and 5~7.125GHz. Figure 2As shown, the seventh antenna 14 can be set in the decorative area 16 of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and the traditional FPC process, and be mounted on the plastic bracket of the rear camera deco decorative part. The area of the seventh antenna 14 can meet 300mm².

[0247] The eighth antenna 19 is a 5G diversity antenna. The eighth antenna 19 can be designed using the PCB process resonant cavity antenna principle. The antenna size is 21*18*2.5mm. The eighth antenna 19 includes a shielding cover S99SS99, a PCB board 13 sub-SS98, a fifth matching circuit G19, a signal source 8, a first antenna D311 ground feed G191, a second antenna D312 ground feed G192, and a third antenna D412 ground feed G193; the antenna resonant impedance is tuned by the fifth matching circuit G19 to optimize the antenna bandwidth, and the frequency mode tuning is performed by the first antenna D The matching of 311 ground feed G191, the second antenna D312 ground feed G192, and the third antenna D412 ground feed G193, and the frequency mode in-band tuning and filter tuning are performed by capacitors or inductors to enable the S11 multi-mode resonant mode to operate at 3.2GHz, 4.2GHz, and 5GHz, covering the n77 / n78 / n79 frequency bands of SUB-6G, and supporting the ENDC and CA combination technologies of 4*4MIMO in the n77 / n78 / n79 frequency bands, meeting the ENDC combination operator technology requirements of operators in China, Europe, Japan, and North America.

[0248] The seventh antenna 14 can be set in the decorative area of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and the traditional FPC process, and be mounted on the decorative plastic bracket of the rear camera area. The area of the seventh antenna 14 can meet 300mm².

[0249] The first slot D31 and the second slot D21 are set in the first long frame, and the eighth antenna 19 is set close to the second long frame, and the second long frame is set opposite to the first long frame. The eighth antenna 19 can be designed using the PCB process resonant cavity antenna principle. The antenna size is 21*18*2.5mm. The eighth antenna 19 includes a shielding cover S99SS99, a PCB board 13 sub-SS98, a fifth matching circuit G19, a signal source 8, a first antenna D311 ground feed G191, a second antenna D312 ground feed G192, and a third antenna D412 ground feed G193; the antenna resonant impedance is tuned by the fifth matching circuit G19 to optimize the antenna bandwidth, and the frequency mode tuning is performed by the first antenna D311 ground feed G1 91. The second antenna D312 ground feed G192 and the third antenna D412 ground feed G193 are matched, and the capacitors or inductors are used for frequency mode in-band tuning and filter tuning, so that the S11 multi-mode resonant mode operates at 3.2GHz, 4.2GHz, and 5GHz, covering the n77 / n78 / n79 frequency bands of SUB-6G, and supporting the ENDC and CA combination technologies of 4*4MIMO in the n77 / n78 / n79 frequency bands, meeting the ENDC combination operator technology requirements of operators in China, Europe, Japan, and North America.

[0250] The signal source 7 of the seventh antenna is arranged near the first preset position. The signal source of the eighth antenna is arranged near the second preset position.

[0251] In this embodiment, a 5G cellular antenna solution with a metal appearance and 4 slots can be implemented, supports a global network mode, supports 5G NR 4*4MIMO technology, reduces costs, and at the same time, the antenna performance meets the European and American operator standard certification, and the solution is easy to promote.

[0252] In some specific embodiments, Figures 3 to 10 For example Figure 2 The S11 diagram of the antenna module shown.

[0253] Figure 3 A schematic diagram of S11 corresponding to a first antenna D311 as a main antenna provided in an embodiment of the present application; Figure 4 A schematic diagram of S11 corresponding to a fourth antenna D213 as a diversity antenna provided in an embodiment of the present application; Figure 5 A schematic diagram of S11 corresponding to an eighth antenna 19 provided in an embodiment of the present application as a 5G diversity antenna; Figure 6 A schematic diagram of S11 corresponding to a seventh antenna 14 provided in an embodiment of the present application, which is a WIFI antenna; Figure 7 A schematic diagram of S11 corresponding to a sixth antenna D112 provided in an embodiment of the present application as a 5G ENDC antenna; Figure 8A schematic diagram of S11 corresponding to a fifth antenna D212 as a main antenna provided in an embodiment of the present application; Figure 9 A schematic diagram of S11 corresponding to a third antenna D412 as a diversity antenna provided in an embodiment of the present application; Figure 10 A schematic diagram of S11 corresponding to a second antenna D312 provided in an embodiment of the present application is a GPS antenna.

[0254] Depend on Figure 3 and Figure 8 It can be seen that the S11 curves of the first antenna D311 and the fifth antenna D212 are all around -5dB in the 4G low-frequency (600-960MHz), medium-high-frequency (1.7-2.17GHz) and 5G Sub-6GHz (3.3-5.0GHz) frequency bands, indicating that the main antenna has efficient matching capabilities across all frequency bands and supports multi-mode communication (dynamic switching between 4G / 5G).

[0255] Depend on Figure 4 and Figure 9 The S11 curves of the fourth antenna D213 and the third antenna D412 have a better matching depth (S11 < -15 dB) in the 5G mid- and high-frequency bands (n77 / n78 / n79) than in the low-frequency bands. This indicates that the diversity antenna focuses on high-frequency signal enhancement, complementing the main antenna in frequency bands and improving MIMO throughput.

[0256] Depend on Figure 5 It can be seen that the S11 value of the eighth antenna 19 (5G diversity) in the n79 frequency band (4.4-5.0 GHz) is less than -20 dB, verifying its high-frequency directional radiation capability and optimizing the SAR value to a safe range.

[0257] Depend on Figure 7 It can be seen that the sixth antenna D112 (5G ENDC) is lower than -15dB at n28 (700MHz) and lower than -5dB at B20 (800MHz), and the S11 curve is smooth, indicating support for 4G / 5G DSS (dynamic spectrum sharing).

[0258] Depend on Figure 6 It can be seen that the S11 curve of the seventh antenna 14 (WiFi) reaches -11 dB and -8 dB at 2.4 GHz and 5 GHz, respectively, and there is no parasitic resonance, indicating that it can effectively suppress 5G high-frequency harmonic interference (for example, there is no energy reflection at 4.9 GHz in the n79 band).

[0259] Depend on Figure 10 It can be seen that the S11 value of the second antenna D312 (GPS) at L1 (1.575 GHz) is less than -10 dB, and the return loss in the 2.4 GHz WiFi band is greater than -5 dB, verifying that the physical isolation and out-of-band suppression design can ensure positioning accuracy.

[0260] This example demonstrates that the antenna module provided by this application embodiment can support 4G / 5G / Wi-Fi / Bluetooth / GPS multi-mode concurrency, adapting to the frequency band requirements of global operators. The main and diversity antennas work together to improve throughput (meeting 4×4 MIMO specifications) and ensure communication reliability in complex electromagnetic environments.

[0261] In an exemplary embodiment, Figure 11 A schematic diagram of the overall structure of a communication device provided in an embodiment of the present application is shown in FIG. Figure 11 As shown, a communication device provided by this application may specifically include:

[0262] The screen 11 is used for displaying the communication device.

[0263] The device cover 1212 is provided with the antenna module as described above.

[0264] The PCB board 1313 is connected to the antenna module and the screen 11 respectively, and is used to realize the core functions of the communication device.

[0265] Exemplarily, the antenna module of the communication device has the same inventive concept as the above-mentioned antenna module, and the implementation solution provided by the communication device to solve the problem is similar to the implementation solution recorded in the above-mentioned antenna module. Therefore, the specific limitations in this embodiment can refer to the above-mentioned limitations on the above-mentioned antenna module and will not be repeated here.

[0266] The screen 11 and the PCB board 13 of the communication device can be implemented through relevant technical solutions, so that they can realize the corresponding functions of the communication device.

[0267] Optionally, the communication device further includes a plastic plate 15 , and the plastic plate 15 may be a PMMA plastic plate 15 material.

[0268] Optionally, Figure 11 The figure also shows the arrangement structure of the seventh antenna 14 (eg, a three-in-one antenna).

[0269] Alternatively, as Figure 1 and Figure 2 As shown, the communication device may further include a first device button 17 and a second device button, which may be used to implement functions such as volume increase and decrease, power on and off, and screen on and off.

[0270] In this embodiment, the communication device can effectively reduce the cost of the communication device by providing the antenna module as described above. At the same time, reducing the gaps in the device frame SS10 can also improve the overall structural strength of the communication device to avoid the risk of deformation caused by multiple gaps.

[0271] In an exemplary embodiment, Figure 12 A schematic diagram of the effect of a communication device provided in an embodiment of the present application; Figure 12 As shown, the communication device includes a device frame SS10 and a device cover 12 provided with a first slot D31, a second slot D21, a third slot D41, and a fourth slot D11. SS110 can be a composite sheet material cover that covers the metal frame, providing drop protection for the antenna assembly while also enhancing its aesthetics. This effectively reduces costs, improves structural strength, and enhances aesthetics.

[0272] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, article, or device comprising the element.

[0273] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referenced to each other.

[0274] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An antenna module, characterized in that: Applicable to a multi-antenna communication device including 5G communication, the antenna module includes: A device frame, provided on the device cover of the communication device; the device frame is provided with four gaps; The first slit and the second slit are arranged on the same long frame, and the first slit and the second slit are symmetrically arranged about the middle point of the long frame; The third slit and the fourth slit are respectively arranged on the first short frame and the second short frame which are opposite to each other, and are both arranged close to the same long frame; A first antenna is provided at an end of the first slot away from the first short frame; A second antenna is provided at one end of the first slot close to the first short frame; A third antenna is provided at one end of the third slot close to the long frame; the third antenna and the second antenna share the same frame segment; A fourth antenna is provided at an end of the second slot away from the second short frame; the fourth antenna and the first antenna share the same frame segment; A fifth antenna is provided at an end of the second slot close to the second short frame; A sixth antenna is provided at one end of the fourth slot close to the long frame; the sixth antenna and the fifth antenna share the same frame segment; a seventh antenna, disposed at a first preset position on a side of the device cover away from the circuit board of the communication device; The eighth antenna is arranged at a second preset position inside the device cover away from the circuit board.

2. The antenna module according to claim 1, wherein: The first antenna is a main antenna, and the resonant frequency of the first antenna covers the full frequency band of the 4G cellular main antenna; the fourth antenna is a diversity antenna, and the resonant frequency of the fourth antenna covers the full frequency band of the 4G cellular diversity antenna.

3. The antenna module according to claim 2, wherein: The fourth antenna shares a first frame segment with the first antenna; The antenna module further includes: A signal source of the first antenna is arranged at a first position of the first frame segment; a first tuning circuit, wherein a first end of the first tuning circuit is connected to the second position of the first frame segment, and a second end of the first tuning circuit is grounded; A first matching circuit is provided in an area of the device cover corresponding to a preset middle position of the first frame segment; the first matching circuit is connected to the middle area of the first frame segment, and a second end of the first matching circuit is grounded; a second tuning circuit, wherein a first end of the second tuning circuit is connected to a third position of the first frame segment, and a second end of the second tuning circuit is grounded; a signal source of the fourth antenna, arranged at a fourth position of the first frame segment; The directions from the first slit to the second slit are: first position, second position, middle area position, third position, and fourth position.

4. The antenna module according to claim 3, wherein: The first matching circuit includes: a DC blocking circuit, disposed corresponding to the middle point of the first frame segment, wherein a first end of the DC blocking circuit is connected to the fifth position of the first frame segment, and a second end is grounded; a first DC blocking filter circuit, a first end of which is connected to the sixth position of the first frame segment, and a second end of which is grounded; a second DC blocking filter circuit, a first end of which is connected to the seventh position of the first frame segment, and a second end of which is grounded; The sixth position and the seventh position are symmetrically arranged at a preset distance from the fifth position.

5. The antenna module according to claim 4, wherein: The length of the first frame segment is 160-180 mm; the preset distance is 3-5 mm.

6. The antenna module according to claim 1, wherein: The second antenna is a main antenna, and the resonant frequency of the second antenna covers the SUB-6G antenna frequency band; The third antenna is a diversity antenna, and the resonant frequency of the third antenna covers the intermediate frequency and high frequency of the SUB-6G frequency band included in the 5G frequency band; The seventh antenna is an all-in-one antenna, and the resonant frequency of the seventh antenna covers the antenna frequency bands of multiple satellite navigation systems, the antenna frequency band of WiFi, and the antenna frequency band of Bluetooth; The eighth antenna is a 5G ENDC antenna, and the resonant frequency of the eighth antenna covers the n20 and n28 antenna frequency bands.

7. The antenna module according to claim 6, wherein: The first slit and the second slit are arranged on the first long frame, and the second preset position is arranged close to the first long frame.

8. The antenna module according to claim 6, wherein: The fifth antenna is a main antenna, and the resonant frequency of the fifth antenna covers the B21 band in the 4G LTE band and the SUB-6G band included in the 5G band; The sixth antenna is a 5G ENDC antenna, and the resonant frequency of the sixth antenna covers the medium frequency band, high frequency band and SUB-6G frequency band included in the 4G frequency band.

9. The antenna module according to claim 1, wherein: The second antenna is a GPS antenna, and the resonant frequency of the second antenna covers antenna frequency bands of multiple satellite navigation systems; The third antenna is a diversity antenna, and the resonant frequency of the third antenna covers the intermediate frequency and high frequency of the SUB-6G frequency band included in the 5G frequency band; The seventh antenna is a WiFi antenna, and the resonant frequency of the seventh antenna covers the antenna frequency band of WiFi and the antenna frequency band of Bluetooth; The eighth antenna is a 5G diversity antenna, and the resonant frequency of the eighth antenna covers the SUB-6G frequency band included in the 5G frequency band.

10. The antenna module according to claim 9, wherein: The first slit and the second slit are arranged on the first long frame, the second preset position is arranged close to the second long frame, and the second long frame is arranged opposite to the first long frame.

11. The antenna module according to claim 9, wherein: The fifth antenna is a main antenna, and the resonant frequency of the fifth antenna covers the B21 band in the 4G LTE band and the SUB-6G antenna band; The sixth antenna is a 5G ENDC antenna, and the resonant frequency of the sixth antenna covers the full frequency band of 4G and the SUB-6G frequency band included in the 5G frequency band.

12. The antenna module according to claim 11, wherein: The antenna module further includes: an antenna switch, wherein a first end of the antenna switch is connected to the sixth antenna, and a second end of the antenna switch is grounded; The antenna switch is used for switching the frequency band of the sixth antenna.

13. The antenna module according to claim 8 or 11, characterized in that: The sixth antenna and the fifth antenna share a third frame segment; the antenna module further includes: At least two second matching circuits, a first end of each second matching circuit is connected to a different grounding point of the third frame segment, and a second end of each second matching circuit is used for grounding.

14. The antenna module according to claim 6 or 9, characterized in that: The third antenna and the second antenna share a second frame segment; The second frame segment is provided with at least two grounding points for grounding.

15. The antenna module according to claim 1, wherein: The first preset position is the rear camera area of the communication device.

16. The antenna module according to claim 1, wherein: The third antenna and the second antenna share the second frame segment; the sixth antenna and the fifth antenna share the third frame segment; The signal source of the second antenna is arranged on the long side corresponding to the second frame segment and close to the first gap; The signal source of the third antenna is arranged on the short side corresponding to the second frame segment and close to the third gap; The signal source of the fifth antenna is arranged on the long side corresponding to the third frame segment and close to the second gap; The signal source of the sixth antenna is arranged on the short side corresponding to the third frame segment and close to the fourth slot.

17. A communication device, characterized in that: include: Screen; A device cover, provided with an antenna module according to any one of claims 1 to 16; A PCB board is connected to the antenna module and the screen respectively, and is used to implement the core functions of the communication device.

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