A WiFi 6E antenna and terminal device

Abstract

The present application provides a WiFi 6E antenna and terminal device, including a feeding branch, a high-frequency radiating unit located on one side of the feeding branch, and a low-frequency radiating unit located on the other side of the feeding branch: the feeding branch is connected to the metal ground of the PCB substrate through a feeding point; the high-frequency radiating unit includes a first radiating branch and a second radiating branch respectively connected to the feeding branch, and the first radiating branch and the second radiating branch form a coupling circuit; the low-frequency radiating unit includes a third radiating branch and a fourth radiating branch respectively connected to the feeding branch, and the third radiating branch, the fourth radiating branch and the feeding branch form a current loop, which meets the bandwidth requirements of WiFi 6E.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to a WiFi 6E antenna and terminal device. Background Art

[0002] Based on the 2.4 / 5GHz supported by the sixth-generation wireless network technology WiFi 6, the enhanced version of the sixth-generation wireless network technology WiFi 6E adds a 6GHz operating frequency band. To support the requirements of WiFi 6E operating frequency, the operating frequency of the WiFi antenna of the mobile terminal needs to reach 2.4-2.5GHz and 5.1GHz~7.2GHz, and its high-frequency band bandwidth reaches 2.1GHz. For the planar printed antenna on the PCB (Printed Circuit Board), due to the small size of the PCB board, ordinary antenna design is difficult to meet such bandwidth requirements.

[0003] To meet the requirements of operating frequency, WiFi 6E antennas are usually large in size and cannot meet the needs of some devices that require miniaturized antennas. Summary of the invention

[0004] The present invention provides a WiFi 6E antenna and terminal device, which are used to solve the problem that the current miniaturized WiFi antenna cannot meet the bandwidth requirements of WiFi 6E.

[0005] The present application provides a WiFi 6E antenna, comprising: a feeding branch, a high-frequency radiation unit located on one side of the feeding branch, and a low-frequency radiation unit located on the other side of the feeding branch:

[0006] The feeding branch is connected to the metal ground of the PCB substrate through the feeding point;

[0007] The high-frequency radiation unit comprises a first radiation branch and a second radiation branch respectively connected to the feeding branch, and the first radiation branch and the second radiation branch form a coupling circuit;

[0008] The low-frequency radiation unit comprises a third radiation branch and a fourth radiation branch respectively connected to the feeding branch, and the third radiation branch, the fourth radiation branch and the feeding branch form a current loop.

[0009] An optional implementation is that the WiFi 6E antenna is located in a clearance area of ​​the PCB substrate;

[0010] One side of the clearance area overlaps with an edge of the PCB substrate, and the opposite side of the clearance area away from the overlapping edge and the periphery of the other two side edges are the metal ground of the PCB substrate.

[0011] An optional implementation manner is that the first radiation branch and the second radiation branch are arranged in parallel and are respectively connected to two ends of the feeding branch to form a coupling circuit equivalent to a capacitive effect;

[0012] The third radiation branch is arranged in parallel with the fourth radiation branch, and one end of the third radiation branch is connected to one end of the feeding branch away from the feeding point, and one end of the fourth radiation branch is connected to the other end of the feeding branch.

[0013] An optional implementation manner is that there are gaps between the ends of the first radiation branch, the second radiation branch, the third radiation branch and the fourth radiation branch and the peripheral metal ground respectively, forming gap coupling;

[0014] The fourth radiation branch is connected to the metal ground of the PCB substrate through a feeding point.

[0015] An optional implementation manner is that the low-frequency radiation unit further includes a fifth radiation branch;

[0016] One end of the fifth radiation branch is connected to one end of the third radiation branch away from the feeding branch, and the other end extends toward the fourth radiation branch. The third radiation branch, the fourth radiation branch, the fifth radiation branch and the feeding branch form a current loop.

[0017] An optional implementation manner is that the low-frequency radiation unit further includes a sixth radiation branch;

[0018] The sixth radiation branch is parallel to the fourth radiation branch, and one end is connected to one end of the fifth radiation branch extending in the direction of the fourth radiation branch, and the other end extends in the direction of the feeding branch. The third radiation branch, the fourth radiation branch, the fifth radiation branch, the sixth radiation branch and the feeding branch form a current loop.

[0019] An optional implementation manner is that the low-frequency radiation unit further includes a seventh radiation branch;

[0020] One end of the seventh radiation branch is connected to one end of the fourth radiation branch away from the feeding branch, and the other end extends toward the third radiation branch. The third radiation branch, the fourth radiation branch, the seventh radiation branch and the feeding branch form a current loop.

[0021] An optional implementation manner is that the clearance area of ​​the PCB substrate is a rectangular area and is located in the middle of the top of the PCB substrate;

[0022] The first radiation is directly arranged vertically with the feeding branch;

[0023] The third radiation branch is arranged vertically to the feeding branch.

[0024] An optional implementation is that the distance between the first radiation branch and the second radiation branch matches the high-frequency bandwidth requirement of the WiFi 6E antenna.

[0025] The above-mentioned WiFi 6E antenna has a simple structure and adopts branch coupling and slot coupling, which can improve the antenna performance in a small space and cover the frequency band required by WiFi 6E.

[0026] An embodiment of the present application also provides a terminal device, comprising: a WiFi 6E antenna of any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram of a WiFi 6E antenna provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of another WiFi 6E antenna provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of adjusting the distance between a first radiation branch and a second radiation branch provided in an embodiment of the present application;

[0031] Figure 4 A schematic diagram of another method of adjusting the distance between the first radiation branch and the second radiation branch provided in an embodiment of the present application;

[0032] Figure 5 A schematic diagram of adjusting the distance between a first radiation branch and a second radiation branch provided in another embodiment of the present application;

[0033] Figure 6 A schematic diagram of a current loop provided in an embodiment of the present application;

[0034] Figure 7 A schematic diagram of a feeding point provided in an embodiment of the present application;

[0035] Figure 8 A schematic diagram of adjusting the position of a feed point provided in an embodiment of the present application;

[0036] Fig. 9 A schematic diagram of metal area division provided in an embodiment of the present application;

[0037] Fig.10 A schematic diagram of a gap between a radiation branch and a metal ground provided in an embodiment of the present application;

[0038] Fig.11 A schematic diagram of a fifth radiation branch provided in an embodiment of the present application;

[0039] Fig.12 Provided for the embodiments of this application Fig.11 Schematic diagram of the return loss of the WiFi 6E antenna shown;

[0040] Fig.13 Provided for the embodiments of this application Fig.11 The current diagram of the WiFi 6E antenna shown at an operating frequency of 2.45 GHz;

[0041] Fig.14 Provided for the embodiments of this application Fig.11 The current diagram of the WiFi 6E antenna shown at an operating frequency of 5.75 GHz;

[0042] Fig.15 Provided for the embodiments of this application Fig.11 The current diagram of the WiFi 6E antenna shown at the operating frequency of 7GHz;

[0043] Fig.16 A schematic diagram of a sixth radiation branch provided in an embodiment of the present application;

[0044] Fig.17 Provided for the embodiments of this application Fig.16 The current diagram of the WiFi 6E antenna shown;

[0045] Fig.18 A schematic diagram of a seventh radiation branch provided in an embodiment of the present application;

[0046] Fig.19 A schematic diagram of a gap between a seventh radiation branch and a metal ground provided in an embodiment of the present application;

[0047] Fig. 20 Provided for the embodiments of this application Fig.18 The current diagram of the WiFi 6E antenna shown;

[0048] Fig.21 A hardware configuration block diagram of a terminal device 200 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0050] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0052] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0053] WiFi 6E requires the antenna to work at frequencies between 2.4GHz and 2.5GHz and between 5.1GHz and 7.2GHz, with a high-frequency bandwidth of 2.1GHz. For planar printed antennas on PCB modules, since the WiFi 6E antenna requires a wider working bandwidth, external antennas are usually used to meet the above bandwidth requirements. However, external antennas are expensive, occupy a large space, and have poor versatility.

[0054] PCB antennas have the advantages of miniaturization, light weight, simple structure, and low cost, and can be used in a variety of devices. However, due to the small size of the PCB board, the design of ordinary miniaturized antennas is difficult to meet such bandwidth requirements. In addition, in order to reduce the impact of the metal ground of the PCB board on the antenna performance, the WiFi antenna is usually designed at the four corners of the PCB board. However, this design method will cause the antenna to have strong directionality, affecting the user experience, and it is difficult to meet the needs of scenarios such as external pull-out antennas that require metal ground on three sides of the antenna.

[0055] In order to solve the above problems, the present application proposes a WiFi 6E antenna. By adjusting the layout position of the radiation branches, the working frequency and bandwidth requirements required by WiFi 6E are achieved while ensuring the miniaturization of the antenna. The WiFi 6E antenna proposed in this application can optimize and improve the antenna performance when there is metal ground on both sides of the antenna, and is compatible with the requirements of scenarios such as external pull-out antenna design that require the antenna to be surrounded by metal ground on three sides.

[0056] Figure 1 A schematic diagram of a WiFi 6E antenna provided in an embodiment of the present application, such as Figure 1 As shown, an embodiment of the present application provides a WiFi 6E antenna, including a feeding branch K1, a high-frequency radiation unit A1 located on one side of the feeding branch K1, and a low-frequency radiation unit A2 located on the other side of the feeding branch K1;

[0057] The high-frequency radiation unit A1 and the low-frequency radiation unit A2 are respectively distributed on both sides of the feeding branch K1, and the distribution method thereof can be as follows: Figure 1 As shown, the high-frequency radiation unit A1 is distributed on the left side of the feeding branch K1, and the low-frequency radiation unit A2 is distributed on the right side of the feeding branch K1. Figure 2 As shown, the positions of the high-frequency radiation unit A1 and the low-frequency radiation unit A2 are interchanged, that is, the low-frequency radiation unit A2 is distributed on the left side of the feeding branch K1, and the high-frequency radiation unit A1 is distributed on the right side of the feeding branch K1.

[0058] The above-mentioned high-frequency radiation unit A1 and low-frequency radiation unit A2 are designed independently and distributed on both sides of the feeding branch K1. By adjusting the high-frequency radiation unit A1, the high-frequency operating frequency of the WiFi 6E antenna reaches 5.1GHz~7.2GHz, and by adjusting the low-frequency radiation unit A2, the low-frequency operating frequency of the WiFi 6E antenna reaches 2.4GHz~2.5GHz, thereby avoiding mutual interference between the adjustment of the high-frequency operating frequency and the low-frequency operating frequency of the antenna, and facilitating the adjustment of the operating frequency of the WiFi 6E antenna.

[0059] The feeding branch K1 is connected to the metal ground of the PCB substrate through the feeding point P;

[0060] During the use of the above-mentioned WiFi 6E antenna, current flows into the above-mentioned feeding branch K1 through the feeding point P.

[0061] The high-frequency radiation unit A1 comprises a first radiation branch W1 and a second radiation branch W2 respectively connected to the feeding branch, and the first radiation branch W1 and the second radiation branch W2 form a coupling circuit;

[0062] As an optional implementation, the first radiation branch A1 and the second radiation branch A2 are arranged in parallel and are respectively connected to two ends of the feeding branch K1 to form a coupling circuit equivalent to a capacitive effect;

[0063] Among them, the distance between the above-mentioned first radiation branch A1 and the second radiation branch A2 can be adjusted according to actual needs, and the embodiment of the present application is not limited. The specific distance matches the high-frequency operating frequency and bandwidth of the WiFi 6E antenna.

[0064] In a specific implementation, the distance between the first radiation branch A1 and the second radiation branch A2 can be adjusted to adjust the equivalent capacitance value, thereby optimizing the radiation performance of the WiFi 6E antenna, and in particular improving the frequency of the ultra-high frequency 7G.

[0065] Figure 3 A schematic diagram of adjusting the distance between a first radiation branch and a second radiation branch provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the position of the first radiating branch A1 changes, the first radiating branch A1 moves toward the direction close to the second radiating branch A2, and the distance between it and the second radiating branch A2 becomes smaller. During implementation, its position can also move away from the second radiating branch A2, so that the distance between it and the second radiating branch A2 becomes larger.

[0066] Figure 4 Another schematic diagram of adjusting the distance between the first radiation branch and the second radiation branch provided in an embodiment of the present application is as follows: Figure 4 As shown, the position of the second radiating branch A2 changes, and the second radiating branch A2 moves toward the direction close to the first radiating branch A1, and the distance between it and the second radiating branch A1 becomes smaller. During implementation, its position can also move away from the first radiating branch A1, so that the distance between it and the first radiating branch A1 becomes larger.

[0067] Figure 5 A schematic diagram of adjusting the distance between the first radiation branch and the second radiation branch provided in an embodiment of the present application is shown in FIG. Figure 5As shown, the positions of the first radiating branch A1 and the second radiating branch A2 are changed, and the first radiating branch A1 and the second radiating branch A2 move toward each other, so that the distance between the first radiating branch A1 and the second radiating branch A2 becomes smaller. During implementation, the first radiating branch A1 and the second radiating branch A2 can also move away from each other, so that the distance between the first radiating branch A1 and the second radiating branch A2 becomes larger.

[0068] The low-frequency radiation unit A2 comprises a third radiation branch W3 and a fourth radiation branch W4 respectively connected to the feeding branch K1, and the third radiation branch W3, the fourth radiation branch W4 and the feeding branch K1 form a current loop;

[0069] As an optional embodiment, the third radiation branch W3 is arranged in parallel with the fourth radiation branch W4, and one end of the third radiation branch W3 is connected to one end of the feeding branch K1 away from the feeding point P, and one end of the fourth radiation branch W4 is connected to the other end of the feeding branch K1.

[0070] In some embodiments, Figure 6 As shown, the third radiation branch W3 is connected to the upper end of the feeding branch K1, and the fourth radiation branch W4 is connected to the lower end of the feeding branch K1, forming a Figure 6 The middle dotted line shows a current loop from the third radiation branch W3 to the feeding branch K1 and then from the feeding branch K1 to the fourth radiation branch W4.

[0071] The design of the current loop increases the routing length of the antenna in the low-frequency radiation unit A2, thereby achieving a miniaturized design of the antenna in a smaller space.

[0072] As an optional implementation, Figure 7 As shown, the fourth radiation branch W4 is connected to the metal ground of the PCB substrate through the feeding ground N.

[0073] The fourth radiation branch W4 is connected to the metal ground through the feeding point N, and an inductance effect is formed between the antenna radiation branch and the metal ground. During the use of the antenna, the current can flow into the metal ground through the fourth radiation branch W4 through the feeding point N. The current flow direction in the fourth radiation branch W4 is opposite to the current flow direction when the feeding point N is not added, thereby reducing the effective length requirement of the antenna, thereby achieving the purpose of reducing the design size of the WiFi6E antenna.

[0074] The position where the feeding point N is connected to the fourth radiation branch W4 can be adjusted according to actual needs, and is not limited in the embodiment of the present application.

[0075] like Figure 8As shown, the position of the feeding point N can be adjusted. By adjusting the position where the feeding point N is connected to the fourth radiating branch W4, that is, adjusting the distance between the feeding point P and the feeding point N, the third resonance position of the current loop in the low-frequency radiation unit A2 can be optimized, other working modes of the WiFi 6E antenna can be optimized, and the working bandwidth and working efficiency of the high-frequency radiation unit A2 can be optimized.

[0076] As an optional implementation, the WiFi 6E antenna is located in a clearance area of ​​the PCB substrate;

[0077] In the embodiment of the present application, the specific shape and size of the antenna clearance area can be adjusted according to actual needs. For example, the shape can be a rectangle and the size can be 7.5mm*15mm.

[0078] One side of the clearance area overlaps with an edge of the PCB substrate, and the opposite side of the clearance area away from the overlapping edge and the periphery of the other two side edges are the metal ground of the PCB substrate.

[0079] The WiFi 6E antenna provided in this application example is surrounded by the metal ground of the PCB board on three sides, achieving compatibility with various design scenarios such as external pull-out antenna design.

[0080] As an optional implementation, the clearance area of ​​the PCB substrate is a rectangular area and is located in the middle of the top of the PCB substrate;

[0081] The first radiation branch W1 and the feeding branch K1 are arranged vertically;

[0082] The third radiation branch W3 is arranged vertically to the feeding branch K1.

[0083] As an optional implementation manner, there are gaps between the ends of the first radiation branch, the second radiation branch, the third radiation branch and the fourth radiation branch and the peripheral metal ground respectively, forming gap coupling;

[0084] like Fig. 9 As shown, for the convenience of description, the metal ground area of ​​the PCB board is divided into three parts in the embodiment of the present application, namely Fig. 9 The first metal ground region, the second metal ground region and the third metal ground region shown in Fig. 9 The first metal ground area refers to the metal ground area on the left side of the clearance area, the second metal ground area refers to the metal ground area on the right side of the clearance area, and the third metal ground area refers to the metal ground area on the lower side of the clearance area.

[0085] Since the WiFi 6E antenna in the embodiment of the present application is located in the clearance area of ​​the above-mentioned PCB substrate, and the clearance area is surrounded by metal ground on three sides, there is a gap between each radiation branch in the WiFi 6E antenna and the metal ground around it.

[0086] Specifically, Fig.10 As shown, there is a first gap between the end of the first radiation branch W1 and the first metal ground area around it, a second gap exists between the end of the second radiation branch W2 and the first metal ground area around it, a third gap exists between the second radiation branch W2 and the third metal ground area around it, a fourth gap exists between the end of the third radiation branch W3 and the second metal ground area around it, and a fifth gap exists between the end of the fourth radiation branch W4 and the second metal ground area and the third metal ground area around it.

[0087] Since the end of each radiating branch in the antenna is the maximum point of the antenna's electric field, it is the position of the strongest current intensity in the antenna, and its current direction is opposite to the current direction of the adjacent metal ground, and the edge area of ​​the metal ground is the position of the strongest current intensity in the metal ground area, the magnetic field formed at the end of each radiating branch and the magnetic field formed at the edge of the adjacent metal ground are coupled through the corresponding gap (the above-mentioned gap coupling). Therefore, gap coupling will be formed at the above-mentioned first gap, second gap, fourth gap and fifth gap, thereby stimulating the radiation performance of the antenna.

[0088] In some embodiments, the second radiation branch W2 is parallel to an edge of the third metal ground region, and the radiation branch W2 is coupled to the third metal ground region through the third gap.

[0089] It should be noted that the position of the above-mentioned feeding point N also affects the size of the above-mentioned fifth gap, and the size of the above-mentioned fifth gap will affect the coupling strength between the fourth radiation branch W4 and the metal ground. Therefore, the coupling strength between the antenna and the metal ground can be adjusted by adjusting the position of the feeding point N, thereby affecting the resonance position and the standing wave depth.

[0090] The above-mentioned WiFi 6E antenna may also have the following deformation structure.

[0091] As an optional implementation, Fig.11 As shown, the above-mentioned low-frequency radiation unit A2 also includes a fifth radiation branch W5;

[0092] One end of the fifth radiation branch W5 is connected to one end of the third radiation branch W3 away from the feeding branch K1, and the other end extends toward the direction of the fourth radiation branch W4. The third radiation branch W3, the fourth radiation branch W4, the fifth radiation branch W5 and the feeding branch K1 form a current loop ring; the equivalent working length of the current loop ring is 1 / 4 wavelength at low frequency, which can stimulate 2.4G resonance performance.

[0093] like Fig.11 As shown, the upper end of the fifth radiation branch W5 is connected to the right end of the third radiation branch W3, which can increase the radiation branch length of the antenna in a small clearance environment.

[0094] The lower end of the fifth radiation branch W5 extends toward the direction of the fourth radiation branch W4. In some embodiments, the fifth radiation branch W5 is parallel to and close to the edge of the adjacent second metal ground, and coupling is formed between the radiation branch and the metal ground.

[0095] Fig.12 Provided in the embodiments of this application Fig.11 The schematic diagram of the return loss of the WiFi 6E antenna shown in FIG. 1 shows the return loss of the antenna in decibels on the ordinate and the operating frequency of the antenna in GHz on the abscissa. Fig.12 As shown, it can be seen that the frequency coverage range with return loss less than 0 decibel is 2-10 GHz, covering the frequency band required by WiFi 6E. The WiFi 6E antenna provided in the embodiment of the present application supports WiFi 6E communication.

[0096] Fig.13 Provided in the embodiments of this application Fig.11 The current diagram of the WiFi 6E antenna shown at an operating frequency of 2.45 GHz; Fig.14 Provided in the embodiments of this application Fig.11 The current diagram of the WiFi 6E antenna shown at an operating frequency of 5.75 GHz; Fig.15 Provided in the embodiments of this application Fig.11 The current diagram of the WiFi 6E antenna shown at the operating frequency of 7GHz;

[0097] The direction of the arrow represents the direction of the current flow, and the density or depth of the arrow represents the magnitude of the current. Figure 13-Figure 15 As shown, at different operating frequencies, an embodiment of the present application provides a WiFi 6E antenna that can optimize the radiation performance of the antenna and the excitation coupling between the antenna radiation branches and the metal ground.

[0098] As an optional implementation, Fig.16 As shown, the above-mentioned low-frequency radiation unit A2 also includes a sixth radiation branch W6;

[0099] The sixth radiation branch W6 is parallel to the fourth radiation branch W4, and one end is connected to one end of the fifth radiation branch W5 extending in the direction of the fourth radiation branch W4, and the other end extends in the direction of the feeding branch K1. The third radiation branch W3, the fourth radiation branch W4, the fifth radiation branch W5, the sixth radiation branch W6 and the feeding branch K1 form a current loop.

[0100] like Fig.16 As shown, the right end of the sixth radiating branch W6 is connected to the lower end of the fifth radiating branch W5. By adding a corner branch, i.e., the sixth radiating branch W6, to the fifth radiating branch W5, the routing length in the low-frequency radiation unit A2 of the WiFi 6E antenna is increased, thereby realizing a miniaturized design of the WiFi 6E antenna in a smaller space.

[0101] In some embodiments, the sixth radiation branch W6 and the fourth radiation branch W4 are arranged in parallel and close to each other to form parallel coupling. The radiation performance of the antenna can be improved through the coupling between the sixth radiation branch W6 and the fourth radiation branch W4.

[0102] Fig.17 Provided in the embodiments of this application Fig.16 The current diagram of the WiFi 6E antenna shown in the figure; the direction of the arrow represents the direction of the current flow, and the density or depth of the arrow represents the magnitude of the current. Fig.16 As shown, an embodiment of the present application provides a WiFi 6E antenna, which can optimize the radiation performance of the antenna and the excitation coupling between the antenna radiation branches and the metal ground.

[0103] As an optional implementation, Fig.18 As shown, the above-mentioned low-frequency radiation unit A2 also includes a seventh radiation branch W7;

[0104] One end of the seventh radiation branch W7 is connected to one end of the fourth radiation branch away from the feeding branch, and the other end extends toward the third radiation branch. The third radiation branch, the fourth radiation branch, the seventh radiation branch and the feeding branch form a current loop.

[0105] like Fig.18 As shown, the lower end of the seventh radiating branch W7 is connected to the right end of the fourth radiating branch W4. By adding a corner branch, i.e., the seventh radiating branch W7, to the fourth radiating branch W4, the routing length in the low-frequency radiation unit A2 of the WiFi 6E antenna is increased, thereby realizing a miniaturized design of the WiFi 6E antenna in a smaller space.

[0106] And, if Fig.19As shown, the sixth gap and the seventh gap are formed between the seventh radiation branch W7 and the second metal ground region and the third metal ground region, respectively. Due to the strong current distribution at the end of the antenna, the end of the seventh radiation branch W7 forms a strong coupling with the corresponding metal ground through the sixth gap and the seventh gap, and its current distribution is as shown in FIG. Fig. 20 As shown, by optimizing the size of the slot and the length of the branch, the operating frequency of the antenna can be adjusted, thereby improving the radiation performance of the antenna.

[0107] In some embodiments, the low-frequency radiation unit A2 of the above-mentioned WiFi 6E antenna may include the above-mentioned fifth radiation branch W5 and the seventh radiation branch W7 at the same time, and may also include the above-mentioned fifth radiation branch W5, the sixth radiation branch W6 and the seventh radiation branch W7 at the same time.

[0108] In some embodiments, the low-frequency radiation unit A2 of the present application may add other radiation branches except the fifth radiation branch W5, the sixth radiation branch W6 and the seventh radiation branch W7 to increase the routing length of the antenna in the low-frequency radiation unit A2.

[0109] The above-mentioned WiFi 6E antenna is surrounded by metal on three sides, which is compatible with the external pull-out antenna design; the antenna has a simple structure and adopts branch coupling and slot coupling to improve the antenna performance in a small space. The antenna has a wider bandwidth and better directivity.

[0110] The embodiment of the present application further provides a terminal device 200, which includes but is not limited to any one of the above-mentioned WiFi 6E antennas. Fig.21 This is a hardware configuration block diagram of a terminal device 200 provided in an embodiment of the present application. It should be understood that: Fig.21 The terminal device 200 shown is only an example, and the terminal device 200 may have more Fig.21 The more or less components shown in the figure can be combined with two or more components, or can have different component configurations. The various components shown in the figure can be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and / or application specific integrated circuits.

[0111] like Fig.21 As shown, the terminal device 200 provided in the embodiment of the present application includes: a communication component 210, wherein the communication component 210 is used to receive or send a call request, receive and send signals during a call, and connect to a server to upload or download data. The communication component 210 may include an RF (radio frequency) circuit 211 and a Wi-Fi (Wireless Fidelity) module 212.

[0112] The RF circuit 211 can be used for receiving and sending signals during the process of sending and receiving information or making calls. It can receive the downlink data of the base station and hand it over to the processor 220 for processing; it can send uplink data to the base station. Generally, the RF circuit 211 includes but is not limited to any of the above-mentioned WiFi 6E antennas, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer and other devices. The RF circuit 211 can receive electromagnetic waves from the antenna, filter, amplify and other processes on the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The RF circuit 211 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves through the antenna for radiation. In some embodiments, at least some of the functional modules of the RF circuit 211 can be set in the processor 220. In some embodiments, at least some of the functional modules of the RF circuit 211 can be set in the same device as at least some of the modules of the processor 220. The RF circuit 211 of the terminal device 200 is coupled to the antenna, so that the terminal device 200 can communicate with the network and other devices through wireless communication technology.

[0113] Wi-Fi is a short-range wireless transmission technology. The terminal device 200 can help users send and receive emails, browse web pages, and access streaming media through the Wi-Fi module 212, which provides users with wireless broadband Internet access. The Wi-Fi module 212 can be connected to a router and connected to an external network through the router. The Wi-Fi module 212 can also be connected to a server to upload or download data.

[0114] In addition, the terminal device 200 provided in the embodiment of the present application also includes components such as a processor 220, a memory 230, a display 240, an input component 250, an audio circuit 260, a SIM card interface 270 and a sensor 280.

[0115] The memory 230 can be used to store data or program codes used when the terminal device is running. The processor 220 executes various functions and data processing of the terminal device 200 by running the data or program codes stored in the memory 230. The memory 230 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. The memory 230 stores an operating system that enables the terminal device 200 to run.

[0116] The display 240 is used to display information input by the user or information provided to the user and a graphical user interface (GUI) of various menus of the terminal device 200. Specifically, the display 240 may include a display arranged on the front of the terminal device 200. The display may be configured in the form of a liquid crystal display, a light emitting diode, etc. The display 240 may be used to display an interface when the terminal device is running.

[0117] The input component 250 may be used to receive digital or character information input by a user, as well as various operations input by a user, and generate signal inputs related to user settings and function control of the terminal device 200. Specifically, the input component 250 may include buttons and a touch screen, and the touch screen may be provided on the front of the terminal device 200 to collect touch operations of the user on or near the touch screen, such as clicking a button, dragging a scroll box, etc.

[0118] The touch screen can be covered on the display. In some embodiments, the touch screen and the display can be integrated to realize the input and output functions of the terminal device 200. The integrated display can be simply called a touch display. The terminal device 200 can also include a positioning module, such as a satellite positioning module or a mobile communication network positioning module, which can determine the geographical location of the terminal device 200 in real time.

[0119] The audio circuit 260, the speaker 261, and the microphone 262 can provide an audio interface between the user and the terminal device 200. The audio circuit 260 can transmit the electrical signal converted from the received audio data to the speaker 261, which is converted into a sound signal for output. The terminal device 200 can also be configured with a volume button for adjusting the volume of the sound signal. On the other hand, the microphone 262 converts the collected sound signal into an electrical signal, which is received by the audio circuit 260 and converted into audio data, and then outputs the audio data to the RF circuit 211 to send it to, for example, another terminal, or outputs the audio data to the memory 230 for further processing. The SIM card interface 270 is used to connect the SIM card. The SIM card can be inserted into the SIM card interface 270 or pulled out from the SIM card interface 270 to achieve contact and separation with the terminal device 200. The terminal device 200 can support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 270 can support Nano SIM cards, Micro SIM cards, SIM cards, etc. Multiple cards can be inserted into the same SIM card interface at the same time. The types of the above-mentioned multiple cards can be the same or different. The SIM card interface can also be compatible with different types of SIM cards. The SIM card interface can also be compatible with external memory cards. The terminal device 200 interacts with the network through the SIM card to realize functions such as calls and data communications. In some embodiments, the terminal device 200 uses an eSIM, that is, an embedded SIM card. The eSIM card can be embedded in the terminal device 200 and cannot be separated from the terminal device 200. The SIM card is used to identify the user's mobile phone number. In addition to the SIM card interface 270, the terminal device 200 can also include a USB (universal serialbus) interface, etc. The USB interface is used to connect a charging cable or other peripherals. For example, the terminal device 200 can be connected to a charging cable via a USB interface. The components or modules in the terminal device 200 are connected via a bus.

[0120] The terminal device 200 may also include at least one sensor 280, such as an acceleration sensor 281, a distance sensor 282, a fingerprint sensor 283, and a temperature sensor 284. The terminal device 200 may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, a light sensor, and a motion sensor. For example, the fingerprint sensor 283 can be used to sense that a user clicks on an icon on the operating interface of the terminal device 200. The terminal device 200 may also include a camera for capturing still images or videos. There may be one or more cameras. The object generates an optical image through the lens and projects it onto a photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the processor 220 for conversion into a digital image signal.

[0121] The processor 220 is the control center of the terminal device 200, and uses various interfaces and lines to connect various parts of the entire terminal, and executes various functions and processes data of the terminal device 200 by running or executing software programs stored in the memory 230 and calling data stored in the memory 230. In some embodiments, the processor 220 may include one or more processing units.

[0122] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A WiFi 6E antenna, characterized in that: It includes a feeding branch, a high-frequency radiation unit located on one side of the feeding branch, and a low-frequency radiation unit located on the other side of the feeding branch: The feeding branch is connected to the metal ground of the PCB substrate through a feeding point; The high-frequency radiation unit comprises a first radiation branch and a second radiation branch respectively connected to the feeding branch, wherein the first radiation branch and the second radiation branch are arranged in parallel to form a coupling circuit equivalent to a capacitive effect; The low-frequency radiation unit includes a third radiation branch connected to one end of the feeding branch away from the feeding point and a fourth radiation branch connected to the other end of the feeding branch, the third radiation branch and the fourth radiation branch are arranged in parallel, and the third radiation branch, the fourth radiation branch and the feeding branch form a current loop.

2. The WiFi 6E antenna according to claim 1, characterized in that: The WiFi 6E antenna is located in the clearance area of ​​the PCB substrate; One side of the clearance area overlaps with an edge of the PCB substrate, and the opposite side of the clearance area away from the overlapping edge and the periphery of the other two side edges are the metal ground of the PCB substrate.

3. The WiFi 6E antenna according to claim 2, characterized in that: There are gaps between the ends of the first radiation branch, the second radiation branch, the third radiation branch and the fourth radiation branch and the peripheral metal ground respectively, forming gap coupling; The fourth radiation branch is connected to the metal ground of the PCB substrate through a feeding point.

4. The WiFi 6E antenna according to any one of claims 1 to 3, characterized in that: The low-frequency radiation unit also includes a fifth radiation branch; One end of the fifth radiation branch is connected to one end of the third radiation branch away from the feeding branch, and the other end extends toward the fourth radiation branch. The third radiation branch, the fourth radiation branch, the fifth radiation branch and the feeding branch form a current loop.

5. The WiFi 6E antenna according to claim 4, characterized in that: The low-frequency radiation unit also includes a sixth radiation branch; The sixth radiation branch is parallel to the fourth radiation branch, and one end is connected to one end of the fifth radiation branch extending in the direction of the fourth radiation branch, and the other end extends in the direction of the feeding branch. The third radiation branch, the fourth radiation branch, the fifth radiation branch, the sixth radiation branch and the feeding branch form a current loop.

6. The WiFi 6E antenna according to any one of claims 1-3, characterized in that: The low-frequency radiation unit also includes a seventh radiation branch; One end of the seventh radiation branch is connected to an end of the fourth radiation branch away from the feeding branch, and the other end extends toward the third radiation branch. The third radiation branch, the fourth radiation branch, the seventh radiation branch and the feeding branch form a current loop.

7. The WiFi 6E antenna according to claim 1, characterized in that: The clearance area of ​​the PCB substrate is a rectangular area and is located in the middle of the top of the PCB substrate; The first radiation is directly arranged vertically with the feeding branch; The third radiation branch is arranged vertically to the feeding branch.

8. The WiFi 6E antenna according to claim 1, characterized in that: The distance between the first radiation branch and the second radiation branch matches the high-frequency bandwidth requirement of the WiFi 6E antenna.

9. A terminal device, characterized in that: include: A WiFi 6E antenna as described in any one of claims 1 to 8.

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