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 equipment frame is provided with four gaps; 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; and at least a part of the antennas are arranged on the frame sections of the equipment frame, which are formed by dividing the equipment frame by the gaps, and at least two antennas share the same frame section so as to realize function multiplexing through frequency band isolation. Through the structure, the cost of the antenna module can be reduced.

Description

[0001] This application claims priority to the application filed on June 19, 2025, application number 202510828323.8. Technical Field

[0002] This application relates to the field of antenna communication technology, and in particular to an antenna module and communication equipment. Background Technology

[0003] With the widespread application of 5G communication technology in smart terminal devices, metal-clad tablet devices with 5G communication capabilities are experiencing continuous market demand growth due to their combined advantages such as high structural strength, excellent heat dissipation, and high portability.

[0004] In traditional technologies, the slotted metal structure antenna solution is commonly achieved using nano-injection molding. This technology forms a radiator by opening more than eight physical slots in the metal back shell, and uses nano-injection molding material to fill the slots to achieve electrical insulation of the antenna's functional area.

[0005] However, during the implementation process, the applicant discovered that traditional technologies, at the very least, have the problem of high costs. Summary of the Invention

[0006] Based on this, the purpose of this application is to at least solve one of the above-mentioned technical defects, especially the high cost of the prior art. This application provides an antenna module and a communication device.

[0007] In a first aspect, this application provides an antenna module for use in a multi-antenna communication device incorporating 5G communication, the antenna module comprising:

[0008] The equipment cover includes an equipment frame; the equipment frame has four gaps; wherein, the first gap and the second gap are located on the same long frame, and the first gap and the second gap are symmetrically located with respect to the midpoint of the long frame; the third gap and the fourth gap are located on opposite first and second short frames, respectively, and are both located close to the same long frame.

[0009] Multiple antennas, at least a portion of which are disposed on various frame segments formed by the gaps in the device frame, and at least two of which share the same frame segment to achieve functional reuse through frequency band isolation.

[0010] In one embodiment, the multiple antennas consist of the following antennas:

[0011] The first antenna is located at the end of the first gap that is away from the first short frame.

[0012] The second antenna is located at one end of the first gap near the first short frame.

[0013] The third antenna is located at one end of the third slot near the long frame; the third antenna shares the same frame segment as the second antenna.

[0014] The fourth antenna is located at the end of the second gap away from the second short frame; the fourth antenna shares the same frame segment as the first antenna.

[0015] The fifth antenna is located at one end of the second gap near the second short frame;

[0016] The sixth antenna is located at one end of the fourth slot near the long frame; the sixth antenna and the fifth antenna share the same frame segment;

[0017] The seventh antenna is located at a first preset position on the side of the device cover away from the communication device's circuit board.

[0018] The eighth antenna is located at a second preset position inside the device cover, away from the circuit board.

[0019] In one embodiment, the first antenna is a main antenna, and the resonant frequency of the first antenna covers the entire 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 entire frequency band of the 4G cellular diversity antenna.

[0020] In one embodiment, the fourth antenna shares a first frame segment with the first antenna; the module further includes:

[0021] The signal source for the first antenna is located at the first position of the first frame segment;

[0022] A first tuning circuit, the first end of the first tuning circuit is connected to the second position of the first frame segment, and the second end of the first tuning circuit is used for grounding;

[0023] The first matching circuit is set in the area of ​​the device cover plate corresponding to the middle preset position of the first frame segment; the first matching circuit is connected to the middle area position of the first frame segment, and the second end of the first matching circuit is used for grounding.

[0024] The second tuning circuit has its first end connected to the third position of the first frame segment, and its second end used for grounding.

[0025] The signal source for the fourth antenna is located at the fourth position of the first frame segment;

[0026] The directions from the first gap to the second gap are as follows: first position, second position, middle area position, third position, and fourth position.

[0027] In one embodiment, the first matching circuit includes:

[0028] A DC blocking circuit is set at the midpoint of the first frame segment. The first end of the DC blocking circuit is connected to the fifth position of the first frame segment, and the second end is used for grounding.

[0029] The first DC blocking filter circuit has its first end connected to the sixth position of the first frame segment, and its second end used for grounding.

[0030] The second DC blocking filter circuit has its first end connected to the seventh position of the first frame segment, and its second end used for grounding.

[0031] The sixth and seventh positions are symmetrically positioned at a preset distance from the fifth position.

[0032] In one embodiment, the length of the first border segment is 160~180mm; the preset distance is 3~5mm.

[0033] In one embodiment, the second antenna is a primary antenna, and the resonant frequency of the second antenna covers the SUB-6G antenna band.

[0034] The third antenna is a diversity antenna, and its resonant frequency covers the intermediate and high frequencies of the SUB-6G band included in the 5G band.

[0035] The seventh antenna is a multi-band antenna, and its resonant frequency covers the antenna bands of multiple satellite navigation systems, WiFi, and Bluetooth.

[0036] The eighth antenna is a 5G ENDC antenna, and its resonant frequency covers the n20 and n28 antenna frequency bands.

[0037] In one embodiment, a first gap and a second gap are disposed on a first long frame, and a second preset position is disposed close to the first long frame.

[0038] In one embodiment, the fifth antenna is the 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.

[0039] The sixth antenna is a 5G ENDC antenna, and its resonant frequency covers the mid-frequency band, high-frequency band, and sub-6G band included in the 4G frequency band.

[0040] In one embodiment, the second antenna is a GPS antenna, and the resonant frequency of the second antenna covers the antenna frequency bands of multiple satellite navigation systems.

[0041] The third antenna is a diversity antenna, and its resonant frequency covers the intermediate and high frequencies of the SUB-6G band included in the 5G band.

[0042] The seventh antenna is a WiFi antenna, and its resonant frequency covers the antenna bands of both WiFi and Bluetooth.

[0043] The eighth antenna is a 5G diversity antenna, and its resonant frequency covers the SUB-6G frequency band included in the 5G frequency band.

[0044] In one embodiment, a first gap and a second gap are disposed on a first long frame, a second preset position is disposed close to the second long frame, and the second long frame is disposed opposite to the first long frame.

[0045] In one embodiment, the fifth antenna is the main antenna, and the resonant frequency of the fifth antenna covers the B21 band and the SUB-6G antenna band in the 4G LTE band.

[0046] The sixth antenna is a 5G ENDC antenna, and its resonant frequency covers the entire 4G frequency band as well as the SUB-6G frequency band included in the 5G frequency band.

[0047] In one embodiment, the module further includes:

[0048] The antenna switch has its first terminal connected to the sixth antenna and its second terminal used for grounding.

[0049] The antenna switch is used for frequency band switching of the sixth antenna.

[0050] In one embodiment, the sixth antenna and the fifth antenna share a third frame segment; the module further includes:

[0051] At least two second matching circuits, the first end of each second matching circuit is connected to different grounding points of the third frame segment, and the second end of each second matching circuit is used for grounding.

[0052] In one embodiment, the third antenna shares a second frame segment with the second antenna;

[0053] The second frame segment is provided with at least two grounding points for grounding;

[0054] In one embodiment, the first preset position is the rear camera area of ​​the communication device.

[0055] In one embodiment, the third antenna shares a second frame segment with the second antenna; the sixth antenna and the fifth antenna share a third frame segment.

[0056] The signal source of the second antenna is set on the long side of the second frame segment, close to the first gap.

[0057] The signal source of the third antenna is located on the short side corresponding to the second frame segment, close to the third gap;

[0058] The signal source for the fifth antenna is located on the long side of the third frame segment, near the second gap;

[0059] The signal source for the sixth antenna is located on the short side corresponding to the third frame segment, near the fourth gap.

[0060] Secondly, this application provides a communication device, comprising:

[0061] Screen;

[0062] The equipment cover is equipped with the antenna module described above;

[0063] The PCB board connects the antenna module and the screen respectively, and is used to realize the core functions of the communication equipment.

[0064] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:

[0065] The antenna module provided in this application divides the device frame into multiple frame segments by setting four slots. At least some of the multiple antennas are set in each frame segment as frame antennas, and at least two antennas can share the same frame segment. This reduces the number of frame slots while effectively achieving functional multiplexing through frequency band isolation. The symmetrical design of the four slots also has an aesthetic effect. This application also ensures 5G multi-antenna functionality by arranging multiple antennas through four slots, supporting multi-band and MIMO (Multiple Input / Output) technology requirements. Thus, by setting four physical slots, compared to antenna designs with six or eight or more slots, the cost of injection molding for the slots can be reduced, thereby effectively reducing the cost of the antenna module. At the same time, reducing the number of slots in the device frame can also improve the overall structural strength of the communication equipment, avoiding the risk of deformation caused by multiple slots. Attached Figure Description

[0066] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0067] Figure 1 This is a schematic diagram of the structure of an antenna module provided in an embodiment of this application;

[0068] Figure 2 This is a schematic diagram of another antenna module provided in an embodiment of this application;

[0069] Figure 3This is a schematic diagram of S11 corresponding to the first antenna being the main antenna, provided in an embodiment of this application;

[0070] Figure 4 A schematic diagram of S11 corresponding to a fourth antenna being a diversity antenna, provided in an embodiment of this application;

[0071] Figure 5 A schematic diagram of S11 corresponding to an eighth antenna being a 5G diversity antenna, provided in an embodiment of this application;

[0072] Figure 6 A schematic diagram of S11 corresponding to a seventh antenna being a WIFI antenna provided in an embodiment of this application;

[0073] Figure 7 A schematic diagram of S11 corresponding to a sixth antenna being a 5G ENDC antenna, provided in an embodiment of this application;

[0074] Figure 8 A schematic diagram of S11 corresponding to the fifth antenna as the main antenna, provided in an embodiment of this application;

[0075] Figure 9 A schematic diagram of S11 corresponding to a third antenna being a diversity antenna, provided in an embodiment of this application;

[0076] Figure 10 A schematic diagram of S11 corresponding to a second antenna being a GPS antenna, provided for an embodiment of this application;

[0077] Figure 11 This is a schematic diagram of the overall structure of a communication device provided in an embodiment of this application;

[0078] Figure 12 This is a schematic diagram illustrating the effect of a communication device provided in an embodiment of this application.

[0079] Figure label:

[0080] 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-Equipment cover; 13-PCB board; 14-Seventh antenna; 15-Plastic board; 19-Eighth antenna; 17-First device button; 18-Second device button; SS10-Equipment 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 ground feeder; G192 - Second ground feeder; G193 - Third ground feeder; G19 - Fifth matching circuit; S99 - Shielding cover. Detailed Implementation

[0081] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0082] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0083] It is understood that the terms "first," "second," etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first antenna may be referred to as a second antenna, and similarly, a second antenna may be referred to as a first antenna. Both the first antenna and the second antenna are antennas, but they are not the same antenna.

[0084] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0085] With the widespread application of 5G communication technology in smart terminal devices, metal-clad tablet devices with 5G communication capabilities are experiencing continuous market demand growth due to their combined advantages such as high structural strength, excellent heat dissipation, and high portability.

[0086] In traditional technologies, the slotted metal structure antenna solution is commonly achieved using nano-injection molding. This technology forms a radiator by opening more than eight physical slots in the metal back shell, and uses nano-injection molding material to fill the slots to achieve electrical insulation of the antenna's functional area.

[0087] However, the 5G antenna solution using an eight-slit metal structure is highly destructive to the appearance of the device, and the all-metal structure uses nano-injection molding technology, making the metal shell expensive. How to reduce the number of slits, improve aesthetics, 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.

[0088] Based on this, in order to solve the above problems, this application provides an antenna module and communication device. By setting four physical gaps, compared with antenna designs with more than six or eight gaps, the cost of injection molding for the gaps can be reduced, 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, so as to avoid the risk of easy deformation caused by multiple gaps.

[0089] In one exemplary embodiment, Figure 1 This is a schematic diagram of the structure of an antenna module provided in an embodiment of this application; Figure 2 This is a schematic diagram of another antenna module provided in an embodiment of this application, as shown below. Figure 1 and Figure 2 As shown, an antenna module is used in a multi-antenna communication device that includes 5G communication. The antenna module includes:

[0090] The equipment cover 12 includes an equipment frame SS10; the equipment frame SS10 has four gaps.

[0091] The communication equipment can be a tablet device. The device cover 12 refers to the housing structure of the smart tablet device, typically made of metal or composite materials, and can provide mechanical support, electromagnetic shielding, and antenna radiation functions. As an example, the device cover 12 is a metal cover.

[0092] The device frame SS10 refers to the edge area of ​​the device cover 12, which is usually a metal frame surrounding the screen. It can serve as a structural component to enhance the rigidity of the device, and also as an antenna radiator to realize signal transmission and reception.

[0093] The gap can be a physical slit formed on the metal frame by laser cutting or stamping, used to divide the metal frame into independent antenna radiators.

[0094] The first gap D31 and the second gap D21 are set on the same long frame, and the first gap D31 and the second gap D21 are symmetrically set with the midpoint of the long frame.

[0095] The third gap D41 and the fourth gap D11 are respectively located on the first and second short borders, and are both located close to the same long border.

[0096] For example, the first slot D31 and the second slot D21 can be located on the same long frame (the long side of the communication device), such as both being located on the first long frame and distributed in a mirror-symmetrical manner with the geometric center point of the long frame as the axis of symmetry. In this way, the complementary nature of the antenna radiation pattern can be achieved through a symmetrical layout, enhancing the uniformity of signal coverage along the long side. The third slot D41 and the fourth slot D11 can be located on two opposite short frames (the short sides of the communication device), respectively, and both are close to the same long frame, for example, both 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.

[0097] The antenna module also includes multiple antennas, with at least a portion of the antennas disposed on the frame segments formed by the four gaps of the device frame as frame antennas; among the multiple frame antennas, at least a portion of the antennas share the same frame segment, and functional reuse is effectively achieved through frequency band isolation.

[0098] In one exemplary embodiment, the plurality of antennas comprises the following antennas:

[0099] The first antenna D311 is located at the end of the first gap D31 away from the first short frame.

[0100] For example, the first antenna D311 can be located between the first gap D31 and the second gap D21, and the metal frame segment away from the first short frame side can be used as the radiator of the first antenna D311, with the first gap D31 as the boundary.

[0101] The second antenna D312 is located at one end of the first gap D31 near the first short frame.

[0102] For example, the second antenna D312 can be set at a corner near the first short frame. The second antenna D312 shares the first slot D31 with the first antenna D311, but uses the metal segment near the first short frame side as the radiator.

[0103] The third antenna D412 is located at one end of the third gap D41 near the first long frame; the third antenna D412 shares the same frame segment as the second antenna D312.

[0104] 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 can share the same metal frame segment with the second antenna D312, that is, share 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 corner segment between the first long frame and the first short frame, can serve as the radiator shared by the third antenna D412 and the second antenna D312. The corner segment can be a straight corner, a rounded corner, an arc corner, etc.

[0105] The fourth antenna D213 is located at the end of the second gap D21 away from the second short frame; the fourth antenna D213 shares the same frame segment as the first antenna D311.

[0106] For example, the fourth antenna D213 can be located between the first gap D31 and the second gap D21, and can share the same metal segment as the first antenna D311 as a radiator.

[0107] The fifth antenna, D212, is located at one end of the second gap, D21, near the second short frame.

[0108] For example, the fifth antenna D212 can be set near the corner of the second short frame, and the second antenna D312 shares the second slot D21 with the fourth antenna D213, but uses the metal segment near the second short frame as the radiator.

[0109] The sixth antenna D112 is located at one end of the fourth slit D11 near the first long frame; the sixth antenna D112 and the fifth antenna D212 share the same frame segment.

[0110] For example, 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, they share 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 corner segment between the first long frame and the second short frame, can serve as the radiator shared by the sixth antenna D112 and the fifth antenna D212. The corner segment can be a straight corner, a rounded corner, an arc corner, etc.

[0111] The seventh antenna 14 is located at a first preset position on the side of the device cover 12 away from the circuit board of the communication device.

[0112] The eighth antenna 19 is located in a second preset position inside the device cover 12 on the side away from the circuit board.

[0113] For example, the seventh antenna 14 and the eighth antenna 19 may be located on one side of the outer surface of the device cover 12, such as the outside of the metal back shell or frame, opposite to the plane where the internal circuit board is located.

[0114] The seventh antenna 14 can be located in the first preset feature area, for example, in the rear camera area of ​​the device cover 12, to improve the utilization rate of the control on the device cover 12. The seventh antenna 14 can adopt a PIFA antenna design scheme, using traditional FPC technology, and be mounted on the decorative plastic bracket of the rear camera area. The eighth antenna 19 can be located in the second preset feature area, which can be located in the area of ​​the edge of the device cover 12, or near the first antenna D311 to the sixth antenna D112.

[0115] In practical applications, the structure of the antenna module described above can effectively reduce the number of frame gaps and meet the performance requirements of 5G NR 4×4 MIMO, positioning requirements, Bluetooth communication requirements, etc., as well as the performance requirements of 4G. Thus, while meeting the requirements of high-speed communication, the cost of the antenna module of the communication equipment can be reduced.

[0116] In this embodiment, four gaps are set in the device frame SS10, and six antennas are set as frame antennas. The design of the four gaps allows three groups of antennas to share the same frame segment, effectively achieving functional reuse through frequency band isolation while reducing the number of frame gaps. The symmetrical design of the four gaps also has an aesthetic effect. Furthermore, two antennas are placed inside the cover plate and in a three-dimensional layout away from the circuit board, further reducing gaps and improving the space utilization of the communication device. This application also arranges eight antennas in four gaps, ensuring 5G multi-antenna functionality and supporting multi-band and MIMO (Multiple Input / Output) technology requirements. Thus, by setting four physical gaps, compared to antenna designs with six or eight or more gaps, the cost of injection molding for the gaps can be reduced, thereby effectively reducing the cost of the antenna module. At the same time, reducing the gaps in the device frame SS10 also improves the overall structural strength of the communication device, avoiding the risk of deformation caused by multiple gaps.

[0117] In one exemplary embodiment, the first antenna D311 is a main antenna, and the resonant frequency of the first antenna D311 covers the entire 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 entire frequency band of the 4G cellular antenna.

[0118] Among them, the main antenna refers to the antenna unit that undertakes the main signal transmission and reception functions of the communication equipment. It can be directly associated with the radio frequency front-end power amplifier (PA) and low noise amplifier (LNA), and its performance can directly affect the throughput and stability of the communication link.

[0119] Diversity antennas refer to antenna elements used to receive diversity signals. They can improve signal reception quality through spatial diversity, polarization diversity, or frequency diversity techniques, but typically do not participate in transmission.

[0120] For example, the first antenna D311 is the main antenna, and the resonant frequency of the first antenna D311 covers the entire frequency band of the 4G cellular main 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 transmission and reception functions of 5G SA and NSA signals.

[0121] The fourth antenna, D213, is a diversity antenna. The resonant frequency of the fourth antenna, D213, covers the entire frequency band of 4G cellular diversity antennas. For example, the low frequency can cover 600MHz~960MHz, the mid 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 transmission and reception functions of 5G SA and NSA signals.

[0122] Optionally, in this embodiment, the first antenna D311 and the fourth antenna D213 are designed as LTE co-radiators with the same frequency. Thus, the antenna module may also include an antenna tuning circuit for tuning the frequency bands of the first antenna D311 and the fourth antenna D213.

[0123] Optionally, the frequency bands of the full-band cellular main antenna and the full-band cellular diversity antenna can cover common LTE FDD (Frequency Division Duplex) frequency bands, such as Band 1, Band 2, Band 3, ..., Band 28, Band 66, etc.

[0124] In this embodiment, by designating the first antenna D311 as the main antenna and the fourth antenna D213 as the diversity antenna, and employing an LTE common radiator design with the same frequency, the antenna resonant frequency can cover the entire frequency band of 4G cellular antennas, enabling the antenna module to adapt to multiple network standards. Simultaneously, the main and diversity antennas share the same metal frame segment as the radiator, reducing physical gaps and allowing for independent operation of the main transmit link and diversity receive link through optimized feed point location and current path isolation, thereby improving antenna isolation and ultimately enhancing communication reliability.

[0125] In one exemplary embodiment, such as Figure 1 and Figure 2 As shown, the fourth antenna D213 shares the first frame segment SS2 with the first antenna D311; the module also includes:

[0126] The signal source 1 of the first antenna is set at the first position of the first frame segment SS2;

[0127] The first tuning circuit G141 has its first end connected to the second position of the first frame segment SS2, and its second end is used for grounding.

[0128] The first matching circuit is set in the area of ​​the device cover plate 12 corresponding to the middle preset position of the first frame segment SS2; the first matching circuit is connected to the middle area position of the first frame segment SS2, and the second end of the first matching circuit is used for grounding.

[0129] The second tuning circuit G121 has its first end connected to the third position of the first frame segment SS2, and its second end used for grounding.

[0130] The signal source 4 of the fourth antenna is set at the fourth position of the first frame segment SS2;

[0131] The directions from the first gap D31 to the second gap D21 are, in sequence: first position, second position, middle area position, third position, and fourth position.

[0132] In this context, the first frame segment SS2 refers to a specific metal area within the metal frame of the device cover plate 12 between the first gap D31 and the second gap D21, which 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 disposed on the radiator; in this embodiment, the antenna's signal source is disposed on the device frame SS10.

[0133] The tuning circuit can be a circuit composed of adjustable capacitors, inductors, or switching elements, and can be used to dynamically adjust the resonant frequency or impedance matching state of the antenna. The first tuning circuit G141 can be a tuning circuit for the signal source 1 of the first antenna; the second tuning circuit G121 can be a tuning circuit for the signal source D213 of the fourth antenna. The matching circuit can be a network composed of fixed or adjustable passive components (such as capacitors and inductors), and can be used to achieve impedance matching between the antenna input impedance and the RF front end, reducing signal reflection. The first matching circuit can refer to the matching circuit used for the first frame segment SS2.

[0134] For example, along the first frame segment SS2 from the first gap D31 to the second gap D21, the following sequential layout may include: First position: signal source 1 of the first antenna (feed point of the first antenna D311). Second position: ground point of the first tuning circuit G141. Middle region position: ground point of the first matching circuit. Third position: ground point of the second tuning circuit G121. Fourth position: signal source 4 of the fourth antenna (feed point of the fourth antenna D213).

[0135] Optionally, the signal source for the first antenna D311 can activate its operating mode by connecting the RF coaxial cable core via pads or springs, with the feed point 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 adjusted by changing 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, used to connect the middle region of the first frame segment SS2 to the ground plane. The second tuning circuit G121 can be similar to the first tuning circuit G141, but can be primarily optimized for the high-frequency band (2.3-2.69GHz). The signal source 4 for the fourth antenna is an independent feed point from the first antenna D311, used to activate the diversity reception mode of the fourth antenna D213.

[0136] In this embodiment, the tuning circuit enables low-frequency isolation between the two antennas, allowing for 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, forming electrical isolation with the intermediate matching circuit, thereby improving isolation. Thus, by reducing physical gaps and optimizing feed point locations and isolating current paths, the main transmit link and diversity receive link can operate independently, improving antenna isolation and ultimately enhancing communication reliability.

[0137] In one exemplary embodiment, such as Figure 1 and Figure 2 As shown, the first matching circuit may specifically include:

[0138] The DC blocking circuit G13 is set at the midpoint of the first frame segment SS2. The first end of the DC blocking circuit G13 is connected to the fifth position of the first frame segment SS2, and the second end is used for grounding.

[0139] The first DC blocking filter circuit G12 has its first end connected to the sixth position of the first frame segment SS2, and its second end used for grounding.

[0140] The second DC blocking filter circuit G14 has its first end connected to the seventh position of the first frame segment SS2, and its second end used for grounding.

[0141] The sixth and seventh positions are symmetrically positioned at a preset distance from the fifth position.

[0142] The DC blocking circuit G13 can be a circuit composed of capacitors, used to block DC components and allow only AC RF signals to pass through, thus preventing the influence of DC bias on the antenna radiator. The DC blocking filter circuit can integrate filter elements (such as inductors and capacitors) on the basis of DC blocking function to achieve bandpass or bandstop filtering in a specific frequency band to suppress out-of-band interference.

[0143] For example, the DC blocking circuit G13 is located at the midpoint (fifth position) of the first frame segment SS2, serving as the center of symmetry for 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, connecting 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 to one side of the fifth position, at a sixth position at a preset distance from the fifth position. The second DC blocking filter circuit G14 is located to the other side of the fifth position, at a seventh position symmetrically distributed with the sixth position, the seventh position being at the same preset distance from the fifth position as the sixth position is from the fifth position.

[0144] 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 of the main and diversity antennas and the DC blocking grounding. The DC blocking grounding network structure of the DC blocking circuit G13 provides a reference channel for the main antenna SAR reduction circuit, realizing the FCC and CE certification SAR reduction scheme.

[0145] In an exemplary embodiment, the length of the first border segment SS2 is 160~180mm; the preset distance is 3~5mm.

[0146] For example, the physical length of the main and diversity LTE antennas is one-quarter of the low-frequency wavelength. The length of the first frame segment SS2 can be 160~180mm to meet good antenna radiation performance. The first DC blocking filter circuit G12 and the second DC blocking filter circuit G14 can be located 3~5mm on both sides of the DC blocking circuit G13, for example, the preset distance can be 3mm. In this way, the low-frequency isolation problem of the first antenna D311 and the fourth antenna D213 can be effectively solved, and DC blocking can be grounded.

[0147] In one exemplary embodiment, such as Figure 1 and Figure 2As shown, 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, a first DC blocking filter circuit G12, a DC blocking circuit G13, and a second DC blocking filter circuit G14 are located, with the matching circuit connected to ground. The DC blocking circuit G13 is located at the center of the main diversity antenna metal frame. The first DC blocking filter circuit G12 and the second DC blocking filter circuit G14 are located approximately 3-5mm to either side of the DC blocking circuit G13. The first DC blocking filter circuit G12 and the second DC blocking filter circuit G14 are the DC blocking circuit G13 and the filter circuit, respectively. The DC blocking circuit G13 may include a DC blocking capacitor or a DC blocking device. The first frame segment SS2, as the antenna radiator, features a shared radiator design with a first antenna D311 (main antenna) and a fourth antenna D213 (diversity antenna), arranged symmetrically around the DC blocking circuit G13. The physical length of the main diversity LTE antenna is one-quarter of the low-frequency wavelength, satisfying good antenna radiation performance.

[0148] The first antenna D311 has a signal source 1 for the 4G / 5G main antenna and a second tuning circuit G121. The second tuning circuit G121 includes an antenna tuning switch, isolation value, and impedance matching circuit, effectively tuning the low-frequency bands B71, B28, B20, B5, B8 and the mid-to-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 has a signal source 4 for the 4G / 5G fourth antenna and a first tuning circuit G141. The first tuning circuit G141 includes an antenna tuning switch, isolation value, and impedance matching circuit, effectively tuning the low-frequency bands B71, B28, B20, B5, B8 and the mid-to-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.

[0149] In this embodiment, the first antenna D311 of the main antenna and the fourth antenna D213 of the diversity antenna are LTE co-radiator antenna structures operating at the same frequency. Conventional co-radiator antenna designs use mid-high frequency or ultra-high frequency frequencies to stagger the co-radiator frequency bands in order to reduce co-frequency interference. This application provides a co-radiator structure for the main antenna and diversity antenna layout across the entire LTE frequency band, so that both the main and diversity antennas cover low-frequency / mid-frequency / high-frequency bands. In the design of two co-frequency antennas, in the limited space of a metal plate, the lower the frequency band, the worse the co-frequency isolation, which leads to a decrease in antenna performance and becomes a bottleneck in the antenna technology of terminal products. This embodiment can solve the problem of low-frequency co-frequency isolation between the two antennas while reducing the number of gaps.

[0150] In one exemplary embodiment, the second antenna D312 is the main antenna, and the resonant frequency of the second antenna D312 covers the SUB-6G antenna band.

[0151] The third antenna, D412, is a diversity antenna. The resonant frequency of the third antenna, D412, covers the intermediate and high frequencies of the SUB-6G band included in the 5G band.

[0152] The seventh antenna 14 is a multi-band antenna, and its resonant frequency covers the antenna bands of multiple satellite navigation systems, WiFi, and Bluetooth.

[0153] The eighth antenna 19 is a 5G ENDC antenna, and the resonant frequency of the eighth antenna 19 covers the frequency bands of the n20 and n28 antennas.

[0154] For example, the second antenna, D312, has a resonant frequency covering the SUB-6G antenna band, with a frequency range of 3.3GHz to 5GHz. It supports n77 / n78 / n79 and meets the main transmission and reception functions of 5G communication protocols in North America, Europe, and China, including SA and NSA. The third antenna, D412, has a resonant frequency covering the SUB-6G band of the 5G antenna band, with a frequency range of 1710MHz to 4.2GHz. It supports multi-frequency MIMO technology and meets the signal reception functions of SA and NSA.

[0155] Optionally, such 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 third antenna D412 covers the same frequency, causing co-channel interference. The metal frame SS5 is equipped 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.

[0156] The seventh antenna 14 can be a three-in-one antenna, covering GPS / BeiDou / GNSS + WiFi 2.4GHz / 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 part area 16 of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle, traditional FPC process, and be mounted on the plastic bracket of the rear camera deco decorative part. The antenna area meets the requirement of 400mm².

[0157] like Figure 1 As shown, the eighth antenna 19 is a 5G ENDC antenna, and the signal source 8 of the eighth antenna is also set in the second preset position. The resonant frequency of the eighth antenna 19 covers the frequency bands of antennas n20 and n28. n20 supports both transmission and reception functions and supports the ENDC combination of n20 and n28, meeting the technical requirements of European low-frequency + low-frequency ENDC combination operators.

[0158] In this embodiment, by designating the second antenna D312 as the main antenna and the third antenna D412 as the diversity antenna, and employing a common radiator design with the same frequency, the antenna resonant frequency can cover the SUB-6G antenna band. Through the coordinated use of the second antenna D312, the third antenna D412, and the eighth antenna 19, the multi-input multi-output performance requirements of the antenna module can be met. Furthermore, the seventh antenna 14 enables GPS positioning, WiFi, and Bluetooth functions, giving the antenna module multi-network compatibility. Simultaneously, the main and diversity antennas share the same metal frame segment as the radiator. This reduces physical gaps and, through optimized feed point location and current path isolation, allows for independent operation of the main transmit link and the diversity receive link, improving antenna isolation and thus enhancing communication reliability.

[0159] In an exemplary embodiment, a first gap D31 and a second gap D21 are disposed on a first long border, and a second preset position is disposed close to the first long border.

[0160] For example, the eighth antenna 19 (5G ENDC antenna) is positioned close to the first long frame but inside the device cover 12 (e.g., near the central region of the long frame). For instance, the eighth antenna 19 is positioned close to the first long frame but not in direct contact with the gap region.

[0161] In this embodiment, the eighth antenna 19 can form an extended ground reference surface through the adjacent metal cover plate area, thereby improving low-frequency radiation efficiency.

[0162] In one exemplary embodiment, the fifth antenna D212 is the main antenna, and the resonant frequency of the fifth antenna D212 covers the B21 band in the 4G LTE band and the SUB-6G band included in the 5G band.

[0163] The sixth antenna, D112, is a 5G ENDC antenna. The resonant frequency of the sixth antenna, D112, covers the mid-frequency band, high-frequency band, and sub-6G band included in the 4G frequency band.

[0164] For example, the resonant frequency of the fifth antenna D212 covers the B21 / B11 and SUB-6G antenna bands, namely B21 / B11 frequency: 1.42GHz~1.45GHz, n77 / n78 / n79 frequency: 3.3GHz~4.2GHz, which can meet the 5G communication protocols in Japan and Europe, support the B21 main transmission and reception functions of Japanese operators, and the MIMO diversity signal reception function of the SUB-6G antenna band.

[0165] The sixth antenna, D112, has an antenna resonant frequency covering the 4G and 5G intermediate frequency / high frequency / SUB-6G bands, with a frequency coverage bandwidth of 1710MHz~4.2GHz. It supports intermediate frequency / high frequency / SUB-6G multi-frequency MIMO technology and can be used for the transmit and receive antenna functions of intermediate frequency / high frequency ENDC. Combined with SUB-6G and other antennas for ENDC and CA functions, it meets the signal transmission and reception functions of operators' SA and NSA.

[0166] Optionally, such as Figure 1 As shown, the fifth antenna D212 and the sixth antenna D112 share the third frame segment SS3 of the metal frame. The fifth antenna D212 covers the n77 / n78 / n79 signals, which cause co-channel interference with the sixth antenna D112. The third frame segment SS3 is equipped with a second matching circuit (including the third matching circuit G10 and the fourth matching circuit G11) to improve and resolve the isolation risk of the n77 / n78 / n79 signals from the dual antennas operating at the same frequency. By tuning the inductance and capacitance values ​​of the matching circuits G10 and G11, the isolation problem of the SUB-6G band between the fifth antenna D212 and the sixth antenna D112 is improved, and the isolation value is grounded, providing a reference channel for the main antenna's SAR reduction circuit, thus realizing the FCC and CE certified SAR reduction scheme.

[0167] As an example, the signal feed 5 of the fifth antenna D212 can be positioned 10mm away from the gap in D21, which is consistent with the operating frequency of 1 / 4 wavelength in the 5G band; the tuning matching circuit G11 is located at the corner of the metal frame, and the physical length of the signal feed 5 and the tuning matching circuit G11 is about 1 / 4 wavelength of the B21 & B11 band, that is, about 45mm.

[0168] As an example, the signal feed 6 of the sixth antenna D112 can be positioned 10mm from the gap D11, which is consistent with the operating frequency of 1 / 4 wavelength in the 5G band. The sixth antenna D112 is equipped with an antenna switch tuning circuit G131 for bandwidth switching in the mid-to-high frequency band, ensuring the antenna band performance requirements. The switch tuning circuit G131 is located approximately 13mm from the signal 6. This position can be located at the antenna current zero point to facilitate optimal tuning. The tuning matching circuit G10 is located approximately 35mm from the signal 6, and the physical length of the metal frame is approximately 1 / 4 wavelength in the B3 band.

[0169] In this embodiment, the fifth antenna D212 undertakes the main communication link between 4G low frequency and 5G mid frequency, serving as the main antenna to support signal transmission and reception. The sixth antenna D112 supports 4G / 5G dual connectivity (ENDC) and can be used for high-frequency signal enhancement and diversity reception, thereby combining with other antennas to meet the 4G+5G NR4*4 MIMO performance requirements of the antenna module.

[0170] In one exemplary embodiment, the second antenna D312 is a GPS antenna, and the resonant frequency of the second antenna D312 covers the antenna frequency bands of multiple satellite navigation systems;

[0171] The third antenna, D412, is a MIMO diversity antenna. The resonant frequency of the third antenna, D412, covers the 5G band, as well as the high-frequency and SUB-6G bands.

[0172] The seventh antenna 14 is a WiFi antenna, and the resonant frequency of the seventh antenna 14 covers the antenna frequency bands of WiFi and Bluetooth.

[0173] 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.

[0174] For example, the resonant frequency of the second antenna, D312, covers the GPS, BDS, GLONASS, and Galileo antenna bands, with a frequency range of 1.572 GHz to 1.65 GHz, meeting the satellite positioning and communication protocols of North America, Europe, and China. The resonant frequency of the third antenna, D412, covers the SUB-6 GHz band of the 5G antenna band, with a frequency range of 1710 MHz to 4.2 GHz, supporting multi-frequency MIMO technology and meeting the signal reception requirements of SA and NSA.

[0175] Optionally, such as Figure 2 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 third antenna D412 covers the same frequency, which causes frequency doubling interference. The metal frame SS5 is equipped 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 two antennas at the same frequency.

[0176] The seventh antenna, 14, is a WiFi antenna. Its functionality covers WiFi 2.4GHz / 5GHz / 6GHz + Bluetooth. The resonant frequency of the seventh antenna, 14, covers 2.4~2.5GHz and 5~7.125GHz. For example... Figure 2 As shown, the seventh antenna 14 can be set in the decorative part area 16 of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle, 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.

[0177] like Figure 2As 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 dimensions are 21*18*2.5mm. The eighth antenna 19 includes a shield S99, a PCB board 13 sub-SS98, a fifth matching circuit G19, a signal source 8, a ground feed for the first antenna D311 G191, a ground feed for the second antenna D312 G192, and a ground feed for the third antenna D412 G193. The antenna resonant impedance is tuned through the fifth matching circuit G19 to optimize the antenna bandwidth, and the frequency mode is tuned through the first antenna D311 G192 G193 G193 G191 G192 ... Matching of feed G191 (11), feed G192 (2nd antenna D312), and feed G193 (3rd antenna D412), with capacitors or inductors for frequency mode in-band tuning and filtering, enables the S11 multimode resonant mode to operate at 3.2GHz, 4.2GHz, and 5GHz, covering the n77 / n78 / n79 bands of SUB-6G. It supports ENDC and CA combination technology for 4*4 MIMO in the n77 / n78 / n79 bands, meeting the ENDC combination operator technology requirements of operators in China, Europe, Japan, and North America.

[0178] In this embodiment, by using the second antenna D312 as a GPS antenna and the third antenna D412 as a diversity antenna, and employing a common radiator design, the resonant frequency of the second antenna D312 covers the antenna frequency bands of multiple satellite navigation systems, and the resonant frequency of the third antenna D412 can cover the SUB-6G antenna frequency band. The eighth antenna 19, in conjunction with the third antenna D412, achieves 5G diversity, covering the SUB-6G frequency band included in the 5G frequency band. Furthermore, the seventh antenna 14, in conjunction with the second antenna D312, provides GPS positioning, WiFi, and Bluetooth functionality, enabling the antenna module to adapt to multiple network standards. Simultaneously, the second antenna D312 and the third antenna D412, and the seventh antenna 14 and the eighth antenna 19, share the same metal frame segment as the radiator. This reduces physical gaps and, through optimized feed point location and current path isolation, allows for independent operation of the main transmit link and the diversity receive link, improving antenna isolation and thus enhancing communication reliability.

[0179] In one exemplary embodiment, such as Figure 2 As shown, the first gap D31 and the second gap D21 are set on the first long border, the second preset position is set close to the second long border, and the second long border is set opposite to the first long border.

[0180] For example, the eighth antenna 19 can be designed using the PCB process resonant cavity antenna principle, with antenna dimensions of 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 ground feed for the first antenna D311 G191, a ground feed for the second antenna D312 G192, and a ground feed for the third antenna D412 G193. The antenna resonant impedance is tuned through the fifth matching circuit G19 to optimize the antenna bandwidth, and the frequency mode is tuned through the ground feed for the first antenna D311 G193. 91. Matching of the second antenna D312 feed to ground G192 and the third antenna D412 feed to ground G193, using capacitors or inductors for frequency mode in-band tuning and filtering tuning, so that the S11 multimode resonant mode operates at 3.2GHz, 4.2GHz, and 5GHz, covering the n77 / n78 / n79 bands of SUB-6G, supporting ENDC and CA combination technology for 4*4 MIMO in the n77 / n78 / n79 bands, meeting the ENDC combination operator technology requirements of operators in China, Europe, Japan, and North America.

[0181] In one exemplary embodiment, the fifth antenna D212 is the main antenna, and the resonant frequency of the fifth antenna D212 covers the B21 band in the 4G LTE band and the SUB-6G antenna band.

[0182] The sixth antenna, D112, is a 5G ENDC antenna. The resonant frequency of the sixth antenna, D112, covers the entire 4G frequency band and the SUB-6G frequency band included in the 5G frequency band.

[0183] For example, the resonant frequency of the fifth antenna D212 covers the B21 / B11 and SUB-6G antenna bands, namely B21 / B11 frequency: 1.42GHz~1.45GHz, n77 / n78 / n79 frequency: 3.3GHz~4.2GHz, which can meet the 5G communication protocols in Japan and Europe, support the B21 main transmission and reception functions of Japanese operators, and the MIMO diversity signal reception function of the SUB-6G antenna band.

[0184] The sixth antenna, D112, has a resonant frequency covering the entire 4G band and the 5G SUB-6G band, enabling multi-frequency MIMO technology. Its low-frequency coverage is 600MHz~960MHz, mid-frequency coverage is 1710MHz~2170MHz, and high-frequency coverage is 2300MHz~2690MHz. It can be used in the ENDC B20 / B28 low-frequency band. The sixth antenna, D112, can be equipped with antenna switch G131 for low, mid, and high-frequency switching, meeting the main transmission and reception functions of SA and NSA signals.

[0185] Optionally, such as Figure 2As shown, the fifth antenna D212 and the sixth antenna D112 share the third frame segment SS3 of the metal frame. The fifth antenna D212 covers the n77 / n78 / n79 signals, which cause co-channel interference with the sixth antenna D112. The third frame segment SS3 is equipped with a second matching circuit (including the third matching circuit G10 and the fourth matching circuit G11) to improve and resolve the isolation risk of the n77 / n78 / n79 signals from the dual antennas operating at the same frequency. By tuning the inductance and capacitance values ​​of the matching circuits G10 and G11, the isolation problem of the SUB-6G band between the fifth antenna D212 and the sixth antenna D112 is improved, and the isolation value is grounded, providing a reference channel for the main antenna's SAR reduction circuit, thus realizing the FCC and CE certified SAR reduction scheme.

[0186] In this embodiment, the fifth antenna D212 undertakes the main communication link between 4G low frequency and 5G mid frequency, serving as the main antenna to support signal transmission and reception. The sixth antenna D112 supports 4G / 5G dual connectivity (ENDC) and can be used for full-band and high-band signal enhancement and diversity reception of 4G, thereby combining with other antennas to meet the 4G+5G NR4*4 MIMO performance requirements of the antenna module.

[0187] In one exemplary embodiment, such as Figure 2 As shown, the module also includes:

[0188] Antenna switch G131, the first terminal of antenna switch G131 is connected to the sixth antenna D112, and the second terminal of antenna switch G131 is used for grounding;

[0189] Antenna switch G131 is used for frequency band switching of the sixth antenna D112.

[0190] For example, the sixth antenna D112 may be equipped with an antenna switch G131 for low, medium and high frequency switching to meet the main signal transmission and reception functions of SA and NSA.

[0191] In one exemplary embodiment, such as 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:

[0192] At least two second matching circuits, the first end of each second matching circuit is connected to different grounding points of the third frame segment SS3, and the second end of each second matching circuit is used for grounding.

[0193] For example, the fifth antenna D212 and the sixth antenna D112 share the third frame segment SS3 of the metal frame. The fifth antenna D212 covers the n77 / n78 / n79 signals, which cause co-channel interference with the sixth antenna D112. The third frame segment SS3 is equipped with a second matching circuit (including a third matching circuit G10 and a fourth matching circuit G11) to improve and resolve the isolation risk of the n77 / n78 / n79 signals from the dual antennas at the same frequency. By tuning the inductance and capacitance values ​​of the matching circuits G10 and G11, the isolation problem of the SUB-6G band between the fifth antenna D212 and the sixth antenna D112 is improved, and the isolation value is grounded, providing a reference channel for the main antenna's SAR reduction circuit, thus realizing the FCC and CE certified SAR reduction scheme.

[0194] In one exemplary embodiment, such as Figure 1 and Figure 2 As shown, the third antenna D412 and the second antenna D312 share the second frame segment SS5;

[0195] The second frame segment SS5 is provided with at least two grounding points for grounding;

[0196] For example, 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 signal and the third antenna D412 covers the same frequency, which causes frequency doubling 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 two antennas at the same frequency.

[0197] In one exemplary embodiment, such as Figure 1 and Figure 2 As shown, the first preset position is the rear camera area of ​​the communication device.

[0198] For example, the seventh antenna 14 can be set in the decorative part area of ​​the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and traditional FPC process, and be mounted on the plastic bracket of the decorative part of the rear camera area. The area of ​​the seventh antenna 14 can meet 300mm².

[0199] In this embodiment, the seventh antenna 14 is integrated into the decorative plastic bracket in the rear camera area, making full use of the space inside the device that was not previously utilized effectively, and avoiding physical interference with other functional modules of the communication device, thereby achieving efficient antenna deployment in a compact body structure.

[0200] In one exemplary embodiment, such as Figure 1 and Figure 2As 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.

[0201] The signal source 2 of the second antenna is set on the long side corresponding to the second frame segment SS5, close to the first gap D31.

[0202] The signal source 3 of the third antenna is located on the short side corresponding to the second frame segment SS5, near the third gap D41.

[0203] The signal source 5 of the fifth antenna is located on the long side corresponding to the third frame segment SS3, near the second gap D21.

[0204] The signal source 6 of the sixth antenna is located on the short side corresponding to the third frame segment SS3, near the fourth gap D11.

[0205] The second frame segment SS5 refers to the continuous metal area within the metal frame of the first long side or the first short side of the device, divided by the first gap D31 and the third gap D41, which 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 within the metal frame of the first long side or the second short side, divided by the third gap D41 and the fourth gap D11, which can serve as a shared radiator for the fifth antenna D212 and the sixth antenna D112.

[0206] For example, the signal source 2 of the second antenna is set on the long side of the second frame segment SS5, and the signal source 3 of the third antenna is set on the short side of the second frame segment SS5. That is, the second frame segment SS5 can be a frame segment with a bend, which is the continuous connection segment at the connection between the first long side and the first short side. The signal source 2 of the second antenna is set in a segment of the second frame segment SS5 where the long side is located, and the signal source 3 of the third antenna is set in a segment of the second frame segment SS5 where the short side is located. 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.

[0207] The signal source 5 of the fifth antenna is set on the long side of the third frame segment SS3, and the signal source 6 of the sixth antenna is set on the short side of the third frame segment SS3. That is, the third frame segment SS3 can be a frame segment with a bend, which is the 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 segment of the long frame of the third frame segment SS3, and the signal source 6 of the sixth antenna is set in a segment of the short frame of the third frame segment SS3. 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.

[0208] 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.

[0209] In this embodiment, the second antenna D312 and the third antenna D412 share the second frame segment SS5, and their signal sources are located near the gaps in the first long frame and the first short frame, respectively; the fifth antenna D212 and the sixth antenna D112 share the third frame segment SS3, and their signal sources are located near the gaps in the first long frame and the second short frame, respectively; thus, the staggered layout can be combined with adjustable matching circuits to achieve signal isolation between the two antennas.

[0210] In a specific embodiment, such as Figure 1 As shown,

[0211] The first antenna D311 and the fourth antenna D213 include:

[0212] The first antenna, D311, is the main antenna. The resonant frequency of the first antenna, D311, covers the entire frequency band of 4G cellular antennas. For example, the low frequency can cover 600MHz~960MHz, the mid 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 transmission and reception functions of 5G SA and NSA signals.

[0213] The fourth antenna, D213, is a diversity antenna. The resonant frequency of the fourth antenna, D213, covers the entire frequency band of 4G cellular antennas. For example, the low frequency can cover 600MHz~960MHz, the mid 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 transmission and reception functions of 5G SA and NSA signals.

[0214] The fourth antenna D213 shares the first frame segment SS2 with the first antenna D311, which is an LTE co-radiator antenna design with the same frequency. The first frame segment SS2 is the antenna radiator, with a length of about 160~180mm. At the center of the metal frame of the radiator, there is a first DC blocking filter circuit G12, a DC blocking circuit G13, a second DC blocking filter circuit G14, and a matching circuit connected to 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 located about 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 the DC blocking circuit G13 and the filter circuit. The DC blocking circuit G13 may include a DC blocking capacitor or a DC blocking device. The first frame segment SS2 is the antenna radiator, with a common radiator design for the first antenna D311 (main antenna) and the fourth antenna D213 (diversity antenna). It is symmetrically arranged with the DC blocking circuit G13 as the center. The physical length of the main and diversity LTE antennas is 1 / 4 wavelength of the low frequency, which meets the requirements of good antenna radiation performance.

[0215] The first antenna D311 has a signal source 1 for the 4G / 5G main antenna and a second tuning circuit G121. The second tuning circuit G121 includes an antenna tuning switch, isolation value, and impedance matching circuit, effectively tuning the low-frequency bands B71, B28, B20, B5, B8 and the mid-to-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 has a signal source 4 for the 4G / 5G fourth antenna and a first tuning circuit G141. The first tuning circuit G141 includes an antenna tuning switch, isolation value, and impedance matching circuit, effectively tuning the low-frequency bands B71, B28, B20, B5, B8 and the mid-to-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.

[0216] The second antenna D312 and the third antenna D412 include:

[0217] The second antenna, D312, is the main antenna. Its resonant frequency covers the SUB-6G antenna band, ranging from 3.3GHz to 4.2GHz, and supports n77 / n78 / n79, meeting the main transmission and reception functions of 5G communication protocols in North America, Europe, and China, including SA and NSA. The third antenna, D412, is a diversity antenna. Its resonant frequency covers the SUB-6G band of the 5G antenna band, ranging from 1710MHz to 4.2GHz, and supports multi-frequency MIMO technology, meeting the signal reception functions of SA and NSA.

[0218] The second antenna D312 and the third antenna D412 share the same metal frame second frame segment SS5. The second antenna D312 covers the n77 / 78 / n79 signal and the third antenna D412 covers the same frequency, causing co-channel interference. The metal frame of the second frame segment SS5 is equipped 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.

[0219] The signal source 2 of the second antenna is set on the long side of the second frame segment SS5, and the signal source 3 of the third antenna is set on the short side of the second frame segment SS5. That is, the second frame segment SS5 can be a frame segment with a bend, which is the continuous connection segment at the connection between the first long side and the first short side. The signal source 2 of the second antenna is set in a segment of the long side of the second frame segment SS5, and the signal source 3 of the third antenna is set in a segment of the short side of the second frame segment SS5. 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.

[0220] The fifth antenna D212 and the sixth antenna D112 include:

[0221] The fifth antenna, D212, is the main antenna. The resonant frequency of the fifth antenna, D212, covers the B21 / B11 and SUB-6G antenna bands, namely B21 / B11 frequencies: 1.42GHz~1.45GHz, and n77 / n78 / n79 frequencies: 3.3GHz~4.2GHz. It can meet the 5G communication protocols in Japan and Europe, support the B21 main transmission and reception functions of Japanese operators, and the MIMO diversity signal reception function of the SUB-6G antenna band.

[0222] The sixth antenna, D112, is a 5G ENDC antenna. The resonant frequency of the sixth antenna, D112, covers the IF / HF / SUB-6G bands of 4G and 5G, with a frequency coverage bandwidth of 1710MHz~4.2GHz. It supports IF / HF / SUB-6G multi-frequency MIMO technology and can be used for the transmit and receive antenna functions of IF / HF ENDC. Combined with SUB-6G and other antennas for ENDC functions and CA functions, it meets the signal transmission and reception functions of SA and NSA for operators.

[0223] The fifth antenna D212 and the sixth antenna D112 share the third frame segment SS3 of the metal frame. The fifth antenna D212 covers the n77 / n78 / n79 signals, which co-channel with the sixth antenna D112, causing co-channel interference. The third frame segment SS3 is equipped with a second matching circuit (including a third matching circuit G10 and a fourth matching circuit G11) to improve and resolve the risk of isolation between the two antennas' co-channel n77 / n78 / n79 signals. By tuning the inductance and capacitance values ​​of the matching circuits G10 and G11, the SUB-6G band isolation problem between the fifth antenna D212 and the sixth antenna D112 is improved, and the isolation value is grounded, providing a reference channel for the main antenna's SAR reduction circuit, thus realizing the FCC and CE certified SAR reduction scheme.

[0224] The signal source 5 of the fifth antenna is set on the long side of the third frame segment SS3, and the signal source 6 of the sixth antenna is set on the short side of the third frame segment SS3. That is, the third frame segment SS3 can be a frame segment with a bend, which is the 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 segment of the long frame of the third frame segment SS3, and the signal source 6 of the sixth antenna is set in a segment of the short frame of the third frame segment SS3. 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.

[0225] The seventh antenna 14 and the eighth antenna 19 include:

[0226] The seventh antenna 14 can be a three-in-one antenna, covering GPS / BeiDou / GNSS + WiFi 2.4GHz / 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 part area 16 of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle, traditional FPC process, and be mounted on the plastic bracket of the rear camera deco decorative part. The antenna area meets the requirement of 400mm².

[0227] The eighth antenna 19 is a 5G ENDC antenna, and its signal source 8 is also located in the second preset position. The resonant frequency of the eighth antenna 19 covers the frequency bands of antennas n20 and n28. n20 supports both transmission and reception functions and supports the ENDC combination of n20 and n28, meeting the technical requirements of European low-frequency + low-frequency ENDC combination operators.

[0228] The seventh antenna 14 can be set in the decorative part area of ​​the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and traditional FPC process, and be mounted on the plastic bracket of the decorative part of the rear camera area. The area of ​​the seventh antenna 14 can meet 300mm².

[0229] The eighth antenna 19 (5G ENDC antenna) is positioned close to the first long frame but inside the device cover 12 (e.g., near the central area of ​​the long frame). For example, the eighth antenna 19 is positioned close to the first long frame but not in direct contact with the gap area.

[0230] 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.

[0231] In this embodiment, a 5G cellular antenna solution with a metal appearance and four slots is achieved. It supports global network modes, 5G NR 4*4 MIMO technology, reduces costs, and the antenna performance meets the standards and certifications of European and American operators. The solution is easy to promote and apply.

[0232] In a specific embodiment, such as Figure 2 As shown,

[0233] The first antenna D311 and the fourth antenna D213 include:

[0234] The first antenna, D311, is the main antenna. The resonant frequency of the first antenna, D311, covers the entire frequency band of 4G cellular antennas. For example, the low frequency can cover 600MHz~960MHz, the mid 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 transmission and reception functions of 5G SA and NSA signals.

[0235] The fourth antenna, D213, is a diversity antenna. The resonant frequency of the fourth antenna, D213, covers the entire frequency band of 4G cellular antennas. For example, the low frequency can cover 600MHz~960MHz, the mid 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 transmission and reception functions of 5G SA and NSA signals.

[0236] The fourth antenna D213 shares the first frame segment SS2 with the first antenna D311, which is an LTE co-radiator antenna design with the same frequency. The first frame segment SS2 is the antenna radiator, with a length of about 160~180mm. At the center of the metal frame of the radiator, there is a first DC blocking filter circuit G12, a DC blocking circuit G13, a second DC blocking filter circuit G14, and a matching circuit connected to 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 located about 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 the DC blocking circuit G13 and the filter circuit. The DC blocking circuit G13 may include a DC blocking capacitor or a DC blocking device. The first frame segment SS2 is the antenna radiator, with a common radiator design for the first antenna D311 (main antenna) and the fourth antenna D213 (diversity antenna). It is symmetrically arranged with the DC blocking circuit G13 as the center. The physical length of the main and diversity LTE antennas is 1 / 4 wavelength of the low frequency, which meets the requirements of good antenna radiation performance.

[0237] The first antenna D311 has a signal source 1 for the 4G / 5G main antenna and a second tuning circuit G121. The second tuning circuit G121 includes an antenna tuning switch, isolation value, and impedance matching circuit, effectively tuning the low-frequency bands B71, B28, B20, B5, B8 and the mid-to-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 has a signal source 4 for the 4G / 5G fourth antenna and a first tuning circuit G141. The first tuning circuit G141 includes an antenna tuning switch, isolation value, and impedance matching circuit, effectively tuning the low-frequency bands B71, B28, B20, B5, B8 and the mid-to-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.

[0238] The second antenna D312 and the third antenna D412 include:

[0239] The second antenna, D312, is a GPS antenna. Its resonant frequency covers the GPS, BDS, GLONASS, and Galileo antenna bands, ranging from 1.572 GHz to 1.65 GHz, meeting the satellite positioning and communication protocols of North America, Europe, and China. The third antenna, D412, is a diversity antenna. Its resonant frequency covers the SUB-6 GHz band of the 5 GHz antenna band, with a bandwidth of 1710 MHz to 4.2 GHz. It supports multi-frequency MIMO technology, meeting the signal reception requirements of SA and NSA.

[0240] 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 signal and the third antenna D412 covers the same frequency, which causes frequency doubling interference. The metal frame SS5 is equipped 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 two antennas at the same frequency.

[0241] The signal source 2 of the second antenna is set on the long side of the second frame segment SS5, and the signal source 3 of the third antenna is set on the short side of the second frame segment SS5. That is, the second frame segment SS5 can be a frame segment with a bend, which is the continuous connection segment at the connection between the first long side and the first short side. The signal source 2 of the second antenna is set in a segment of the long side of the second frame segment SS5, and the signal source 3 of the third antenna is set in a segment of the short side of the second frame segment SS5. 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.

[0242] The fifth antenna D212 and the sixth antenna D112 include:

[0243] The fifth antenna, D212, is the main antenna. The resonant frequency of the fifth antenna, D212, covers the B21 / B11 and SUB-6G antenna bands, namely B21 / B11 frequencies: 1.42GHz~1.45GHz, and n77 / n78 / n79 frequencies: 3.3GHz~4.2GHz. It can meet the 5G communication protocols in Japan and Europe, support the B21 main transmission and reception functions of Japanese operators, and the MIMO diversity signal reception function of the SUB-6G antenna band.

[0244] The sixth antenna, D112, is a 5G ENDC antenna. Its resonant frequency covers the full 4G band and the 5G SUB-6G band, enabling multi-frequency MIMO technology. The low-frequency range covers 600MHz~960MHz, the mid-frequency range covers 1710MHz~2170MHz, and the high-frequency range covers 2300MHz~2690MHz. It can be used in the ENDC B20 / B28 low-frequency band. The sixth antenna, D112, can be equipped with antenna switch G131 for low, mid, and high-frequency switching, meeting the main transmission and reception functions of SA and NSA signals.

[0245] The sixth antenna D112 can be equipped with antenna switch G131 for low, medium and high frequency switching to meet the main transmission and reception functions of SA and NSA signals.

[0246] The fifth antenna D212 and the sixth antenna D112 share the third frame segment SS3 of the metal frame. The fifth antenna D212 covers the n77 / n78 / n79 signals, which co-channel with the sixth antenna D112, causing co-channel interference. The third frame segment SS3 is equipped with a second matching circuit (including a third matching circuit G10 and a fourth matching circuit G11) to improve and resolve the isolation risk of the n77 / n78 / n79 signals from the dual antennas operating at the same frequency. By tuning the inductance and capacitance values ​​of the second matching circuits G10 and G11, the SUB-6G band isolation problem between the fifth antenna D212 and the sixth antenna D112 is improved, and the isolation value is grounded, providing a reference channel for the main antenna's SAR reduction circuit, thus realizing the FCC and CE certified SAR reduction scheme.

[0247] The signal source 5 of the fifth antenna is set on the long side of the third frame segment SS3, and the signal source 6 of the sixth antenna is set on the short side of the third frame segment SS3. That is, the third frame segment SS3 can be a frame segment with a bend, which is the 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 segment of the long frame of the third frame segment SS3, and the signal source 6 of the sixth antenna is set in a segment of the short frame of the third frame segment SS3. 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.

[0248] The seventh antenna 14 and the eighth antenna 19 include:

[0249] The seventh antenna, 14, is a WiFi antenna. Its functionality covers WiFi 2.4GHz / 5GHz / 6GHz + Bluetooth. The resonant frequency of the seventh antenna, 14, covers 2.4~2.5GHz and 5~7.125GHz. For example... Figure 2 As shown, the seventh antenna 14 can be set in the decorative part area 16 of the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle, 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.

[0250] The eighth antenna 19 is a 5G diversity antenna. It can be designed using PCB technology based on the resonant cavity antenna principle. The antenna dimensions are 21*18*2.5mm. The eighth antenna 19 includes a shield S99, a PCB board 13 (SS98), a fifth matching circuit G19, a signal source 8, a ground feed for the first antenna D311 (G191), a ground feed for the second antenna D312 (G192), and a ground feed for the third antenna D412 (G193). The antenna resonant impedance is tuned through the fifth matching circuit G19 to optimize the antenna bandwidth, and the frequency mode is tuned through the first antenna D311. Matching of feeder G191, feeder G192 of second antenna D312, and feeder G193 of third antenna D412; in-band frequency mode tuning and filtering tuning using capacitors or inductors; enabling S11 multimode resonant mode to operate at 3.2GHz, 4.2GHz, and 5GHz, covering the n77 / n78 / n79 bands of SUB-6G; supporting ENDC and CA combination technology for 4*4 MIMO in the n77 / n78 / n79 bands; meeting the ENDC combination operator technology requirements of operators in China, Europe, Japan, and North America.

[0251] The seventh antenna 14 can be set in the decorative part area of ​​the rear camera area. The seventh antenna 14 can adopt the PIFA antenna design principle and traditional FPC process, and be mounted on the plastic bracket of the decorative part of the rear camera area. The area of ​​the seventh antenna 14 can meet 300mm².

[0252] The first slot D31 and the second slot D21 are located on the first long frame, and the eighth antenna 19 is located close to the second long frame, which is opposite to the first long frame. The eighth antenna 19 can be designed using the PCB process resonant cavity antenna principle, with antenna dimensions of 21*18*2.5mm. The eighth antenna 19 includes a shield S99, a PCB board 13 sub-SS98, a fifth matching circuit G19, a signal source 8, a ground feed for the first antenna D311 G191, a ground feed for the second antenna D312 G192, and a ground feed for the third antenna D412 G193. The antenna resonant impedance is tuned through the fifth matching circuit G19 to optimize the antenna bandwidth, and the frequency mode is tuned through the ground feed for the first antenna D311 G191. Matching of the second antenna D312 feed to ground G192 and the third antenna D412 feed to ground G193, with capacitors or inductors for frequency mode in-band tuning and filtering tuning, enables the S11 multimode resonant mode to operate at 3.2GHz, 4.2GHz, and 5GHz, covering the n77 / n78 / n79 bands of SUB-6G, supporting ENDC and CA combination technology for 4*4 MIMO in the n77 / n78 / n79 bands, meeting the ENDC combination operator technology requirements of operators in China, Europe, Japan, and North America.

[0253] 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.

[0254] In this embodiment, a 5G cellular antenna solution with a metal appearance and four slots is achieved. It supports global network modes, 5G NR 4*4 MIMO technology, reduces costs, and the antenna performance meets the standards and certifications of European and American operators. The solution is easy to promote and apply.

[0255] In some specific embodiments, Figures 3 to 10 For example Figure 2 The antenna module shown is illustrated in diagram S11. Wherein:

[0256] Figure 3 This is a schematic diagram of S11 corresponding to the first antenna D311 as a master antenna, provided in an embodiment of this application. Figure 4 This is a schematic diagram of S11 corresponding to a fourth antenna D213 being a diversity antenna, as provided in an embodiment of this application. Figure 5 This is a schematic diagram of S11 corresponding to an eighth antenna 19 being a 5G diversity antenna, as provided in an embodiment of this application. Figure 6 A schematic diagram of S11 corresponding to the seventh antenna 14 being a WIFI antenna provided in an embodiment of this application; Figure 7 A schematic diagram of S11 corresponding to a 5G ENDC antenna as a sixth antenna D112 provided in an embodiment of this application; Figure 8 This is a schematic diagram of S11 corresponding to the fifth antenna D212 as the master antenna, provided in an embodiment of this application. Figure 9 This is a schematic diagram of S11 corresponding to a third antenna D412 being a diversity antenna, as provided in an embodiment of this application. Figure 10 This is a schematic diagram of S11 corresponding to the second antenna D312 being a GPS antenna, provided in an embodiment of this application.

[0257] 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), mid-high frequency (1.7-2.17GHz) and 5G Sub-6GHz (3.3-5.0GHz) frequency bands, indicating that the main antenna has efficient matching capability across the entire frequency band and supports multi-mode communication (4G / 5G dynamic switching).

[0258] Depend on Figure 4 and Figure 9 It can be seen that the S11 curves of the fourth antenna D213 and the third antenna D412 have a better matching depth (S11 < -15dB) in the high frequency (n77 / n78 / n79) band of 5G than in the low frequency band. This indicates that the diversity antenna focuses on the high frequency signal to enhance it, and forms a frequency band complementarity with the main antenna, thereby improving the MIMO throughput.

[0259] Depend on Figure 5It can be seen that the S11 value of the eighth antenna 19 (5G diversity) in the n79 band (4.4-5.0GHz) is <-20dB, which verifies its high-frequency directional radiation capability, and the SAR value is optimized to a safe range.

[0260] Depend on Figure 7 It can be seen that the sixth antenna D112 (5G ENDC) is below -15dB at n28 (700MHz) and below -5dB at B20 (800MHz), and the S11 curve is smooth, indicating that it supports 4G / 5G DSS (Dynamic Spectrum Sharing).

[0261] Depend on Figure 6 It can be seen that the S11 curve of the seventh antenna 14 (WiFi) reaches -11dB and -8dB at 2.4GHz and 5GHz respectively, and there is no parasitic resonance, indicating that it can effectively suppress 5G high-frequency harmonic interference (such as no energy reflection at 4.9GHz in the n79 band).

[0262] Depend on Figure 10 It can be seen that the second antenna D312 (GPS) has an S11 value of <-10dB in L1 (1.575GHz) and a reflection loss of >-5dB in the 2.4GHz WiFi band, which verifies that the physical isolation and out-of-band suppression design can ensure positioning accuracy.

[0263] In this embodiment, it can be verified that the antenna module provided in this application can support 4G / 5G / WiFi / Bluetooth / GPS multi-mode concurrency and adapt to the frequency band requirements of global operators. The main antenna and diversity antenna work together to improve throughput (meeting the 4×4 MIMO requirement) and can also ensure communication reliability in complex electromagnetic environments.

[0264] In one exemplary embodiment, Figure 11 This is a schematic diagram of the overall structure of a communication device provided in an embodiment of this application, such as... Figure 11 As shown, the communication device provided in this application may specifically include:

[0265] Screen 11 is used for display functions of communication devices.

[0266] The device cover 12 is equipped with an antenna module as described above.

[0267] PCB board 13 is connected to antenna module and screen 11 respectively, and is used to realize the core functions of communication equipment.

[0268] For example, the antenna module of the communication device has the same inventive concept as the antenna module described above. The solution to the problem provided by the communication device is similar to the solution described in the antenna module. Therefore, the specific limitations in this embodiment can be found in the limitations of the antenna module described above, and will not be repeated here.

[0269] The screen 11 and PCB board 13 of the communication device can be implemented through relevant technical solutions, enabling it to realize the corresponding functions of the communication device.

[0270] Optionally, the communication equipment also includes a plastic sheet 15, which may be made of PMMA plastic sheet 15 material.

[0271] Optionally, Figure 11 The configuration of the seventh antenna 14 (e.g., a triple antenna) is also shown.

[0272] Optionally, such as Figure 1 and Figure 2 As shown, the communication device may also include a first device button 17 and a second device button, which can be used to realize functions such as volume up / down, power on / off, and screen on / off.

[0273] In this embodiment, by setting up the antenna module as described above, the communication device can effectively reduce the cost of the communication device. At the same time, reducing the gaps in the device frame SS10 can also improve the overall structural strength of the communication device, so as to avoid the risk of easy deformation caused by multiple gaps.

[0274] In one exemplary embodiment, Figure 12 This is a schematic diagram illustrating the effect of a communication device provided in an embodiment of this application; for example... Figure 12 As shown, the communication equipment includes a frame SS10 and a cover plate 12 with a first gap D31, a second gap D21, a third gap D41, and a fourth gap D11. SS110 can be a composite material cover plate that can be placed on top of the metal frame to provide drop protection for the antenna assembly, while also improving aesthetics. The communication equipment can effectively reduce costs, increase structural strength, and enhance aesthetics.

[0275] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes said element.

[0276] The various embodiments in this specification are described in a progressive manner. 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 referred to each other.

[0277] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An antenna module, characterized in that, A communication device with multiple antennas for 5G communication, wherein the antenna module includes: A device frame is provided on the device cover of the communication device; the device frame is provided with four gaps; wherein, the first gap and the second gap are provided on the same long frame, and the first gap and the second gap are symmetrically arranged with respect to the midpoint of the long frame; the third gap and the fourth gap are respectively provided on the opposite first short frame and the second short frame, and both are located close to the same long frame; Multiple antennas, at least a portion of which are disposed on various frame segments formed by the gaps in the device frame, and at least two of which share the same frame segment to achieve functional reuse through frequency band isolation.

2. The antenna module according to claim 1, characterized in that, The plurality of antennas consists of the following antennas: The first antenna is disposed at the end of the first gap away from the first short frame. The second antenna is disposed at one end of the first gap near the first short frame. The third antenna is disposed at one end of the third gap near the long frame; the third antenna shares the same frame segment as the second antenna. The fourth antenna is disposed at the end of the second gap away from the second short frame; the fourth antenna shares the same frame segment as the first antenna. The fifth antenna is located at one end of the second gap near the second short frame; The sixth antenna is disposed at one end of the fourth slot near the long frame; the sixth antenna and the fifth antenna share the same frame segment; The seventh antenna is located at a first preset position on the side of the device cover away from the circuit board of the communication device; The eighth antenna is located at a second predetermined position inside the device cover, away from the circuit board.

3. The antenna module according to claim 2, characterized in that, The first antenna is a main antenna, and the resonant frequency of the first antenna covers the entire 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 entire frequency band of the 4G cellular diversity antenna.

4. The antenna module according to claim 3, characterized in that, The fourth antenna shares the first frame segment with the first antenna; The antenna module also includes: The signal source for the first antenna is located at the first position of the first frame segment; A first tuning circuit, wherein a first end of the first tuning circuit is connected to a second position of the first frame segment, and a second end of the first tuning circuit is used for grounding. A first matching circuit is disposed in the area of ​​the device cover plate corresponding to the middle preset position of the first frame segment; the first matching circuit is connected to the middle area position of the first frame segment, and the second end of the first matching circuit is used for grounding. A second tuning circuit, wherein the first end of the second tuning circuit is connected to the third position of the first frame segment, and the second end of the second tuning circuit is used for grounding; The signal source for the fourth antenna is located at the fourth position of the first frame segment; The directions from the first gap to the second gap are sequentially: first position, second position, middle area position, third position, and fourth position.

5. The antenna module according to claim 4, characterized in that, The first matching circuit includes: A DC blocking circuit is set at the midpoint of the first frame segment. The first end of the DC blocking circuit is connected to the fifth position of the first frame segment, and the second end is used for grounding. The first DC blocking filter circuit has its first end connected to the sixth position of the first frame segment, and its second end used for grounding. The second DC blocking filter circuit has its first end connected to the seventh position of the first frame segment, and its second end used for grounding. The sixth and seventh positions are symmetrically arranged at a preset distance from the fifth position.

6. The antenna module according to claim 5, characterized in that, The length of the first border segment is 160~180mm; the preset distance is 3~5mm.

7. The antenna module according to claim 2, characterized in that, The second antenna is the main antenna, and the resonant frequency of the second antenna covers the SUB-6G antenna 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 band. The seventh antenna is a multi-antenna, and its resonant frequency covers the antenna frequency bands of multiple satellite navigation systems, WiFi, and 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.

8. The antenna module according to claim 7, characterized in that, The first gap and the second gap are located on the first long frame, and the second preset position is located close to the first long frame.

9. The antenna module according to claim 7, characterized in that, The fifth antenna is the 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 its resonant frequency covers the mid-frequency band, high-frequency band, and SUB-6G band included in the 4G frequency band.

10. The antenna module according to claim 1, characterized in that, The second antenna is a GPS antenna, and its resonant frequency covers the 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 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.

11. The antenna module according to claim 10, characterized in that, The first gap and the second gap are located on the first long frame, the second preset position is located close to the second long frame, and the second long frame is located opposite to the first long frame.

12. The antenna module according to claim 10, characterized in that, The fifth antenna is the main antenna, and the resonant frequency of the fifth antenna covers the B21 band and the SUB-6G antenna band in the 4G LTE band. The sixth antenna is a 5G ENDC antenna, and its resonant frequency covers the entire 4G frequency band as well as the SUB-6G frequency band included in the 5G frequency band.

13. The antenna module according to claim 12, characterized in that, The antenna module also includes: An antenna switch, wherein the first end of the antenna switch is connected to the sixth antenna, and the second end of the antenna switch is used for grounding; The antenna switch is used for frequency band switching of the sixth antenna.

14. The antenna module according to claim 9 or 12, 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, the first end of each second matching circuit is connected to a different grounding point of the third frame segment, and the second end of each second matching circuit is used for grounding.

15. The antenna module according to claim 7 or 10, characterized in that, The third antenna shares the second frame segment with the second antenna; The second frame segment is provided with at least two grounding points for grounding.

16. The antenna module according to claim 2, characterized in that, The first preset position is the rear camera area of ​​the communication device.

17. The antenna module according to claim 2, characterized in that, The third antenna shares a second frame segment with the second antenna; the sixth antenna and the fifth antenna share a third frame segment; The signal source of the second antenna is located on the long side of the second frame segment, close to the first gap; The signal source of the third antenna is located on the short side corresponding to the second frame segment, close to the third gap; The signal source of the fifth antenna is located on the long side of the third frame segment, close to the second gap. The signal source of the sixth antenna is located on the short side corresponding to the third frame segment, near the fourth gap.

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

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