Millimeter wave antenna and electronic equipment

Abstract

The utility model provides a millimeter wave antenna and electronic equipment, a dielectric plate of the millimeter wave antenna comprises a first metal piece and a second metal piece, a first antenna is arranged on an area of the dielectric plate corresponding to a through hole of the first metal piece, and a second antenna is arranged on an area of the dielectric plate corresponding to a through hole of the second metal piece. In the structure of the millimeter wave antenna provided by the embodiment of the invention, a plurality of metal pieces can be added on the dielectric plate, the through holes of the metal pieces provide effective propagation channels for the antenna, and the metal pieces can also shield external signal interference, so that the directional diagram of the antenna is smoother, and the radiation performance of the antenna is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of antennas, and in particular to a millimeter wave antenna and an electronic device. BACKGROUND

[0002] The millimeter wave frequency band has an important position in the fields of communication, radar, etc. For a millimeter wave antenna, the stability of antenna radiation is very important. When there are multiple antennas on an antenna board, the stability of antenna radiation will deteriorate. Based on this, how to ensure the antenna radiation performance in the case that there are multiple antennas on an antenna board has become a technical problem to be solved. SUMMARY

[0003] The present application provides a millimeter wave antenna and an electronic device, so that the antenna pattern is smoother, the multipath effect is reduced, and the antenna radiation performance is improved.

[0004] In a first aspect, a millimeter wave antenna is provided, which includes a dielectric board, a first antenna, a second antenna, a first metal piece, and a second metal piece. The first metal piece and the second metal piece are arranged on the dielectric board. The first metal piece includes a first through hole, and the second metal piece includes a second through hole. The region of the dielectric board corresponding to the first through hole is a first region, and the region of the dielectric board corresponding to the second through hole is a second region. The first antenna is arranged on the first region, and the second antenna is arranged on the second region.

[0005] In the structure of the millimeter wave antenna provided in the embodiments of the present application, multiple metal pieces can be added to the dielectric board. Each of the multiple metal pieces includes a through hole, and multiple antennas are arranged on the region of the dielectric board corresponding to the through hole of the metal piece. The through hole of the metal piece provides an effective propagation channel for the antenna, and the metal piece can also shield external signal interference, so that the antenna pattern is smoother, the multipath effect is reduced, and the antenna radiation performance is improved.

[0006] In combination with the first aspect, in some implementation manners of the first aspect, the first metal piece and the second metal piece are coupled with the dielectric board.

[0007] In the structure of the millimeter wave antenna provided in the embodiments of the present application, the first metal piece and the second metal piece can be coupled with the dielectric board, so that the first metal piece can better shield external signals for the first antenna, and the second metal piece can better shield external signals for the second antenna.

[0008] In combination with the first aspect, in some implementation manners of the first aspect, the first metal piece and the second metal piece are coupled with the dielectric board by surface mounting technology.

[0009] With reference to the first aspect, in some implementations of the first aspect, the first metal piece and the second metal piece are coupled to the dielectric plate by conductive glue.

[0010] With reference to the first aspect, in some implementations of the first aspect, the first antenna and the second antenna have the same height, the first via hole and the second via hole have the same height, the height of the first antenna is equal to the height of the first via hole, and the height of the second antenna is equal to the height of the second via hole, and the height direction is the thickness direction of the dielectric plate.

[0011] With reference to the first aspect, in some implementations of the first aspect, the first antenna and the second antenna have the same height, the first via hole and the second via hole have the same height, the height of the first antenna is less than the height of the first via hole, and the height of the second antenna is less than the height of the second via hole, and the height direction is the thickness direction of the dielectric plate.

[0012] In the embodiments of the present application, the height of the via hole is higher than the height of the antenna, so that the metal piece can better provide a propagation channel for the antenna and avoid interference from external signals, thereby improving the stability and maximum gain of the antenna radiation performance.

[0013] With reference to the first aspect, in some implementations of the first aspect, the size of the first via hole is associated with the working wavelength of the first antenna.

[0014] With reference to the first aspect, in some implementations of the first aspect, the size of the first via hole is less than or equal to half of the working wavelength of the first antenna.

[0015] With reference to the first aspect, in some implementations of the first aspect, the millimeter wave antenna further includes a third antenna, and the third antenna is arranged in the first region.

[0016] With reference to the first aspect, in some implementations of the first aspect, the first antenna and the third antenna are receiving antennas, and the second antenna is a transmitting antenna.

[0017] With reference to the first aspect, in some implementations of the first aspect, the millimeter wave antenna further includes a fourth antenna, the first metal piece further includes a third via hole, the region of the dielectric plate corresponding to the third via hole is a third region, and the fourth antenna is arranged in the third region.

[0018] With reference to the first aspect, in some implementations of the first aspect, the material of the metal piece is one of tin-plated steel, martensitic steel, ferritic steel, austenitic steel, and austenitic-ferritic steel.

[0019] The second aspect provides an electronic device, which includes the millimeter wave antenna of the first aspect or any one of the implementations of the first aspect.

[0020] With reference to the second aspect, in some implementations of the second aspect, the electronic device is one of a customer premises equipment (CPE) and a millimeter wave radar. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of a mobile communication system suitable for embodiments of the present application.

[0022] Figure 2 is a schematic diagram of a millimeter wave antenna provided by embodiments of the present application.

[0023] Figure 3 is a schematic diagram of a metal piece provided by embodiments of the present application.

[0024] Figure 4 is a schematic diagram of a millimeter wave antenna provided by embodiments of the present application.

[0025] Figure 5 is a schematic diagram of a millimeter wave antenna provided by embodiments of the present application.

[0026] Figure 6 is a schematic diagram of a cross-section of a millimeter wave antenna provided by embodiments of the present application.

[0027] Figure 7 is a schematic diagram of a cross-section of a millimeter wave antenna provided by embodiments of the present application.

[0028] Figure 8 is a schematic diagram of a millimeter wave antenna provided by embodiments of the present application, including a metal piece and a metal piece-free antenna.

[0029] Figure 9 is a perspective view of an electronic device provided by embodiments of the present application. DETAILED DESCRIPTION

[0030] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0031] It should be noted that in the embodiments of the present application, the terms "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. The terms "include", "contain", "have" and their variants mean "including but not limited to", unless otherwise specifically emphasized. In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance. The size of the serial numbers of the processes below does not mean the order of execution, the execution order of the processes should be determined by their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0032] In the description of the embodiments of the present application, it should be noted that, unless otherwise specified, "a plurality of" means more than two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error.

[0033] In the embodiments described in the present application, "one embodiment" or "some embodiments" and the like means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. In the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design presented as "exemplary" or "for example" in the present application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Rather, the use of "exemplary" or "for example" is intended to present relevant concepts in a concrete manner. The terms "include", "contain", "have" and their variants mean "including but not limited to", unless otherwise specifically emphasized. In the embodiments of the present application, the descriptions of "when", "in the case of", "if" and "if" all refer to the device making corresponding processing under certain objective conditions, and are not limited to time, and do not require the device to have a judgment action when implemented, nor does it mean that there are other limitations.

[0034] The term "and / or" in the embodiments of the present application is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists, A and B exist at the same time, and B exists. In addition, the character " / " in the embodiments of the present application generally represents that the associated objects before and after the " / " are in an "or" relationship. In addition, it should be further pointed out that, in the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] It should be understood that "electrically connected" in the present application can be understood as physical contact and electrical conduction of components; it can also be understood as a form of connection between different components in the line structure through the entity line of the copper foil or the wire of the printed circuit board (PCB) that can transmit electrical signals; it can also be understood as electrically connected in space through indirect coupling. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to a connection relationship that limits the structure of the product. "Connection" and "connection" can refer to a mechanical connection relationship or a physical connection relationship, for example, A and B are connected or A and B are connected, which means that there is a fastening member (such as a screw, a bolt, a rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0036] Figure 1 is a schematic diagram of a mobile communication system suitable for the embodiments of the present application.

[0037] As Figure 1 indicated, the mobile communication system 100 can include at least one network device 101, at least one customer premise equipment (CPE) 102, and at least one user equipment (UE) 103. Figure 1 This is only a schematic diagram, and the communication system can also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in Figure 1 The embodiments of the present application do not limit the number and specific types of network devices and UEs included in the mobile communication system.

[0038] The UE 103 in the embodiments of the present application can refer to a mobile phone, a tablet computer, a notebook computer, a smart bracelet, a smart watch, a smart helmet, smart glasses, etc. The electronic device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an electronic device in a 5G network or an electronic device in a future evolved public land mobile network (PLMN), etc., and the embodiments of the present application are not limited thereto.

[0039] The network device 101 in the embodiments of the present application can be a device for communicating with an electronic device. The network device can be a network device (new generation nodeB, gNB or gNodeB) in a 5G network or a network device in a future communication network, and a network device supporting a later version of a 3rd generation partnership project (3GPP) protocol, etc., and the embodiments of the present application are not limited thereto.

[0040] It should be understood that the CPE 102 can connect the user equipment 103 by receiving the cellular network signal sent by the network device 101 and delivering the cellular network signal to the user equipment 103.

[0041] 5G technology and future communication network technology are no longer single access, but integration of multiple technologies. The characteristics of millimeter wave, ultra-wideband, low latency, high reliability, and low power consumption make it possible to cover other communication fields (such as device-to-device (D2D) communication, etc.), and 5G technology can also be widely used in commercial, medical, military and other purposes. The Internet of Things is built on the basis of the Internet and is an extension of the Internet, which can realize the connection between people, people and things, and things. The appearance of the Internet of Things makes it convenient for people to freely obtain the relevant information of the objects they need, and smart electronic devices, as the means to realize the Internet of Things, have also begun to flourish. The main form of smart electronics is smart phones, which also include tablet computers, smart watches, etc. In order to become a carrier for the development and application of the Internet of Things to a greater extent, and to adapt to the user's experience demand for diversification, individualization and openness, smart electronic devices are gradually developing towards miniaturization and integration.

[0042] As a medium for information transmission in a communication system, an antenna is used to realize the mutual conversion of electromagnetic waves between electronic devices and free space. The performance of the antenna directly affects the quality of communication and limits the development of the communication system. In order to adapt to the trend of miniaturization and integration of electronic devices, the antenna is required to be as small as possible while ensuring normal working performance, so as to set as many antennas as possible on a dielectric plate.

[0043] In addition to being used in the field of communication, the millimeter wave frequency band can also be applied in the field of radar, for example, a vehicle can be configured with a millimeter wave radar for realizing unmanned driving. For another example, an agricultural unmanned aerial vehicle can be configured with a millimeter wave radar for realizing unmanned operation.

[0044] In summary, the millimeter wave frequency band plays an important role in the fields of communication, radar and the like. Due to the characteristics of high frequency and wavelength of millimeter waves, the size of a millimeter wave antenna is generally small, and in order to miniaturize the antenna, multiple antennas can be integrated on a dielectric plate. However, the high frequency band also means that the propagation loss is large and is easily affected by obstacles and the environment. When multiple millimeter wave antennas exist on a dielectric plate, the antenna pattern may be deteriorated due to the following reasons:

[0045] 1. Mutual coupling

[0046] When multiple millimeter wave antennas are integrated on a dielectric plate, the multiple millimeter wave antennas may interfere with each other, that is, the radiation field of one antenna will interfere with the current distribution of the adjacent antenna, resulting in changes in its radiation characteristics (such as impedance, pattern).

[0047] 2. Spatial layout constraints

[0048] In order to save the area of the dielectric plate, the antennas are often arranged in a compact array form (such as a planar array or a conformal array), which will exacerbate the mutual coupling effect and limit the radiation freedom of the antennas.

[0049] 3. Multipath interference and scattering effect

[0050] Millimeter wave signals are easily blocked, but in an open environment, multipath reflections (such as scattering from the structure or shell around the dielectric plate) can be received by the antenna array, interfering with the main beam pattern.

[0051] In summary, when multiple antennas exist on a dielectric plate, the stability of the antenna radiation will deteriorate. Based on this, how to ensure the radiation performance of the antennas when multiple antennas exist on a dielectric plate has become a technical problem to be solved.

[0052] Figure 2 is a schematic diagram of a millimeter wave antenna provided by an embodiment of the present application, which can be applied in an electronic device, and the electronic device can beFigure 1 The network device 101, the CPE 102 or the UE 103 shown in the figure.

[0053] As Figure 2 shown, the millimeter wave antenna 200 includes a dielectric plate 210, M metal pieces and N antennas, the M metal pieces are arranged on the dielectric plate 210, each of the M metal pieces is provided with a through hole, the N antennas are arranged on the region of the dielectric plate 210 corresponding to the through hole of the M metal pieces, N is a positive integer greater than 2, and M is a positive integer greater than 2. Wherein, the M metal pieces include a first metal piece 220 and a second metal piece 230, and the N antennas include a first antenna 240 and a second antenna 250. The through hole of the first metal piece 220 includes a through hole #1, and the through hole of the second metal piece 230 includes a through hole #2. The first antenna 240 is arranged on the region of the dielectric plate 210 corresponding to the through hole #1 of the first metal piece 220. The second antenna 250 is arranged on the region of the dielectric plate 210 corresponding to the through hole #2 of the second metal piece 230. In other words, the region of the dielectric plate 210 corresponding to the through hole #1 of the first metal piece 220 is a region #1, and the first antenna 240 is arranged on the region #1. Similarly, the region of the dielectric plate 210 corresponding to the through hole #2 of the second metal piece 230 is a region #2, and the second antenna 250 is arranged on the region #2.

[0054] The structure of the millimeter wave antenna 200 provided by the embodiment of the present application is that the first metal piece 220 and the second metal piece 230 are arranged on the dielectric plate 210, and the first metal piece 220 and the second metal piece 230 both include a through hole, so that the first antenna 240 and the second antenna 250 can be arranged on the region of the dielectric plate 210 corresponding to the through hole of the first metal piece 220 and the second metal piece 230 respectively. The through hole of the first metal piece 220 provides an effective propagation channel for the first antenna 240, and the first metal piece 220 can also shield the interference of external signals (such as the signal of the second antenna 250), so that the directivity pattern of the first antenna 240 is more smooth, and the radiation performance of the first antenna 240 is improved. Similarly, the through hole of the second metal piece 230 provides an effective propagation channel for the second antenna 250, and the second metal piece 230 can also shield the interference of external signals (such as the signal of the first antenna 240), so that the directivity pattern of the second antenna 250 is more smooth, and the radiation performance of the second antenna is improved.

[0055] In some possible embodiments, the M metal pieces are coupled with the dielectric plate 210 to better shield the interference of external signals for the antenna.

[0056] The coupling manner of the metal piece and the dielectric plate 210 is not limited in the embodiment of the present application. The metal piece can be directly electrically connected with the dielectric plate 210 or indirectly coupled with the dielectric plate 210. The following exemplary introduces several possible implementation manners.

[0057] Exemplarily, the M metal pieces can be electrically connected with the dielectric plate 210 through conductive glue.

[0058] Exemplarily, the M metal pieces can be welded on the dielectric plate 210 through surface mount technology (SMT) to be electrically connected with the dielectric plate 210.

[0059] With reference to Figure 2 , the region of the dielectric plate 210 corresponding to the through hole #2 of the second metal piece 230 can be provided with one antenna, i.e., the second antenna 250. The region of the dielectric plate 210 corresponding to the through hole #1 of the first metal piece 220 can be provided with multiple antennas, such as the first antenna 240, the third antenna 260 and the fourth antenna 270.

[0060] In some possible embodiments, the first antenna 240, the second antenna 250, the third antenna 260 and the fourth antenna 270 can be antennas of the same type, such as the first antenna 240, the second antenna 250, the third antenna 260 and the fourth antenna 270 can be transmitting antennas, or can also be receiving antennas.

[0061] In some possible embodiments, the first antenna 240, the third antenna 260 and the fourth antenna 270 can be antennas of the same type, and different from the type of the second antenna 250, such as the first antenna 240, the third antenna 260 and the fourth antenna 270 can be transmitting antennas, and the second antenna 250 can be a receiving antenna. For another example, the first antenna 240, the third antenna 260 and the fourth antenna 270 can be receiving antennas, and the second antenna 250 can be a transmitting antenna.

[0062] In the embodiments of the present application, the material of the metal piece is not specifically limited, and the material of the metal piece includes but is not limited to tin-plated steel, martensitic steel, ferritic steel, austenitic steel and austenitic-ferritic steel.

[0063] In some possible embodiments, the materials of the M metal pieces are the same.

[0064] In some possible embodiments, the materials of part of the M metal pieces are different, for example, the materials of the first metal piece 220 and the second metal piece 230 are different.

[0065] Figure 3 A structure diagram of a metal piece is shown.

[0066] As Figure 3 shown, the metal piece 300 includes a through hole, and the region of the dielectric plate corresponding to the through hole can be used to set an antenna.

[0067] In some possible embodiments, the size of the through hole can be associated with the working wavelength of the antenna arranged in the area of the dielectric plate corresponding to the through hole.

[0068] For example, the size of the through hole can be equal to or less than half of the working wavelength of the antenna.

[0069] It should be understood that the size of the through hole can be different in different cases of the shape of the through hole.

[0070] For example, when the shape of the through hole of the metal piece 300 is a circular through hole, the size of the through hole can be the diameter of the circular section of the through hole.

[0071] For another example, when the shape of the through hole of the metal piece 300 is a square through hole, the size of the through hole can be the side length of the square section of the through hole.

[0072] For another example, when the shape of the through hole of the metal piece 300 is a rectangular through hole, the size of the through hole can be the long side or the short side of the rectangular section of the through hole.

[0073] In some possible embodiments, the size of the through hole can be associated with the working wavelength of the antenna arranged in the area of the dielectric plate corresponding to the through hole. Figure 2 and Figure 3 In the examples shown in FIGS. 1 to 3, the metal piece includes one through hole, and one or more antennas are arranged in the area of the dielectric plate corresponding to the one through hole, but the embodiments of the present application are not limited thereto, and in some other embodiments of the present application, a metal piece can include multiple through holes, and multiple antennas can be arranged in the area of the dielectric plate corresponding to the multiple through holes, which will be described below with reference to FIG. 4. Figure 4

[0074] Figure 4 FIG. 4 is a schematic diagram of a millimeter wave antenna provided by an embodiment of the present application.

[0075] As shown in FIG. 4, the millimeter wave antenna includes a metal piece 400, a dielectric plate 410 and a plurality of antennas 420. Figure 4 ​As shown, the millimeter wave antenna 200 includes a dielectric plate 210, a first metal piece 220, a second metal piece 230, a first antenna 240, a second antenna 250, a third antenna 260, and a fourth antenna 270. The first metal piece 220 and the second metal piece 230 are both disposed on the dielectric plate, and the first metal piece 220 and the second metal piece 230 include through holes. The through holes of the first metal piece 220 include a through hole #1 and a through hole #2, and the through holes of the second metal piece 230 include a through hole #3. The first antenna 240 is disposed on a region of the dielectric plate 210 corresponding to the through hole #1 of the first metal piece 220, the third antenna 260 is disposed on a region of the dielectric plate 210 corresponding to the through hole #1 of the first metal piece 220, the fourth antenna 270 is disposed on a region of the dielectric plate 210 corresponding to the through hole #2 of the first metal piece 220, and the second antenna 250 is disposed on a region of the dielectric plate 210 corresponding to the through hole #3 of the second metal piece 230. In other words, the region of the dielectric plate 210 corresponding to the through hole #1 of the first metal piece 220 is a region #1, the region of the dielectric plate 210 corresponding to the through hole #2 of the first metal piece 220 is a region #2, and the region of the dielectric plate 210 corresponding to the through hole #3 of the second metal piece 230 is a region #3. The first antenna 240 and the third antenna 260 are disposed on the region #1, the fourth antenna 270 is disposed on the region #2, and the second antenna 250 is disposed on the region #3.

[0076] The millimeter wave antenna 200 provided by the embodiments of the present application has the following advantages. The first metal piece 220 and the second metal piece 230 are disposed on the dielectric plate 210, and the first metal piece 220 and the second metal piece 230 both include through holes. The first antenna 240, the third antenna 260, and the fourth antenna 270 are disposed on regions of the dielectric plate 210 corresponding to the through holes of the first metal piece 220, and the second antenna 250 is disposed on a region of the dielectric plate 210 corresponding to the through hole of the second metal piece 230. The through holes of the first metal piece 220 provide effective propagation channels for the first antenna 240, the third antenna 260, and the fourth antenna 270, and the first metal piece 220 can shield external signals (such as signals of the second antenna 250) to make the radiation patterns of the first antenna 240, the third antenna 260, and the fourth antenna 270 smoother, thereby improving the stability and maximum gain of the antenna radiation performance. Similarly, the through holes of the second metal piece 230 provide effective propagation channels for the second antenna 250, and the second metal piece 230 can shield external signals (such as signals of the first antenna 240, the third antenna 260, and the fourth antenna 270) to make the radiation pattern of the second antenna 250 smoother, thereby improving the stability and maximum gain of the antenna radiation performance.

[0077] Figure 5 FIG. 1 is a schematic diagram of a millimeter wave antenna provided by an embodiment of the present application.

[0078] As shown in Figure 5 , the millimeter wave antenna 200 can include a dielectric plate 210, a first metal piece 220, a first antenna 240, and a radome 280, wherein the first metal piece 220 and the first antenna 240 are arranged between the dielectric plate 210 and the radome 280, and above the dielectric plate 210.

[0079] It should be understood that the description of the first metal piece 220 and the first antenna 240 can be referred to the above, which will not be repeated here for brevity.

[0080] Figure 6 is a cross-sectional view of a millimeter wave antenna provided by an embodiment of the present application.

[0081] As shown in Figure 6 , the first metal piece 220, the second metal piece 230, the first antenna 240, and the second antenna 250 are arranged between the dielectric plate 210 and the radome 280. The first metal piece 220 and the second metal piece 230 include through holes, so that the first antenna 240 and the second antenna 250 can be arranged above the regions of the dielectric plate 210 corresponding to the through holes of the first metal piece 220 and the second metal piece 230, respectively.

[0082] With reference to Figure 6 , the height of the first antenna 240 is less than the height of the through hole of the first metal piece 220. The height of the second antenna 250 is less than the height of the through hole of the second metal piece 230.

[0083] In the embodiments of the present application, the height of the through hole is higher than the height of the antenna, so that the metal piece can better provide a propagation channel for the antenna and avoid the interference of external signals, thereby improving the antenna radiation performance.

[0084] It should be understood that Figure 6 only taking the height of the first antenna being less than the height of the through hole of the first metal piece as an example, when N antennas and M metal pieces are arranged on the dielectric plate, the heights of the N antennas can be the same, the heights of the through holes of the M metal pieces can be the same, and the heights of the N antennas are less than the heights of the through holes of the M metal pieces, and the height direction is the thickness direction of the dielectric plate.

[0085] In other possible embodiments, the height of the first antenna 240 is equal to the height of the through hole of the first metal piece 220. The height of the second antenna 250 is equal to the height of the through hole of the second metal piece 230. It should be understood that, in this embodiment, only taking the height of the first antenna being equal to the height of the through hole of the first metal piece as an example, when N antennas and M metal pieces are arranged on the dielectric plate, the heights of the N antennas can be the same, the heights of the through holes of the M metal pieces can be the same, and the heights of the N antennas are equal to the heights of the through holes of the M metal pieces.

[0086] In some possible embodiments, the first metal element 220 may be coupled to the dielectric substrate 210.

[0087] In this embodiment, the coupling method between the first metal component 220 and the dielectric substrate 210 is not specifically limited.

[0088] For example, such as Figure 6 As shown, the first metal component 220 can be electrically connected to the dielectric substrate 210 by SMT soldering. When the first metal component 220 is soldered to the dielectric substrate 210 by SMT, SMT solder pads 290 can be formed between the first metal component 220 and the dielectric substrate 210.

[0089] For example, Figure 7 This is a cross-sectional schematic diagram of a millimeter-wave antenna provided in an embodiment of this application, as shown below. Figure 7 As shown, the first metal part 220 can be electrically connected to the dielectric plate 210 through conductive adhesive 291.

[0090] Figure 8 This application provides a schematic diagram of the direction of a millimeter-wave antenna including a metal component and one without a metal component, as shown in the embodiments below. Figure 8 (a) in the diagram is a schematic diagram of the antenna orientation excluding the metal components of the millimeter-wave antenna. Figure 8 (b) in the figure is a schematic diagram of the antenna direction of the millimeter-wave antenna including the metal parts.

[0091] like Figure 8 As shown, when metal components are added to the dielectric substrate, the antenna pattern becomes smoother, indicating that stability and maximum antenna gain are improved.

[0092] Figure 9 This is a perspective view of the device 900 provided in the embodiments of this application.

[0093] like Figure 9 As shown, device 900 may include millimeter-wave antenna 200, which may be any of the antenna structures described above.

[0094] It should be understood that, for the embodiments of this application, the device may include multiple antenna structures, and is not necessarily limited to one antenna structure. Adjustments can be made according to the actual design, and this application does not impose any restrictions on this.

[0095] Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0096] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0097] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the division of the above-described device embodiments is only a logical function division, and there can be another division manner for actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, or the among different units, can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0098] The above describes only the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A millimeter wave antenna, characterized by, The millimeter wave antenna comprises a dielectric plate, a first antenna, a second antenna, a first metal piece, and a second metal piece. The first metal piece and the second metal piece are arranged on the dielectric plate, the first metal piece comprises a first through hole, the second metal piece comprises a second through hole, a region of the dielectric plate corresponding to the first through hole is a first region, and a region of the dielectric plate corresponding to the second through hole is a second region. The first antenna is arranged on the first region, and the second antenna is arranged on the second region.

2. The millimeter wave antenna of claim 1, wherein, The first metal piece and the second metal piece are coupled with the dielectric plate.

3. The millimeter wave antenna of claim 2, wherein, The first metal piece and the second metal piece are coupled with the dielectric plate by surface mounting technology.

4. The millimeter wave antenna of claim 2, wherein, The first metal piece and the second metal piece are coupled with the dielectric plate by conductive glue.

5. The millimeter wave antenna of any one of claims 1 to 4, wherein, The first antenna and the second antenna have the same height, the first through hole and the second through hole have the same height, the height of the first antenna is equal to the height of the first through hole, and the height of the second antenna is equal to the height of the second through hole, wherein the height direction is the thickness direction of the dielectric plate.

6. The millimeter wave antenna of any one of claims 1 to 4, wherein, The first antenna and the second antenna have the same height, the first through hole and the second through hole have the same height, the height of the first antenna is less than the height of the first through hole, and the height of the second antenna is less than the height of the second through hole, wherein the height direction is the thickness direction of the dielectric plate.

7. The millimeter wave antenna of any one of claims 1 to 4, wherein, The size of the first through hole is associated with the working wavelength of the first antenna.

8. The millimeter wave antenna of claim 7, wherein, The size of the first through hole is less than or equal to half of the working wavelength of the first antenna.

9. The millimeter wave antenna of any one of claims 1 to 4, wherein, The millimeter wave antenna further comprises a third antenna, and the third antenna is arranged on the first region.

10. The millimeter wave antenna of claim 9, wherein, The first antenna and the third antenna are receiving antennas, and the second antenna is a transmitting antenna.

11. The millimeter wave antenna of any one of claims 1 to 4, wherein, The first metal piece and the second metal piece are made of one of tin-plated steel, martensitic steel, ferritic steel, austenitic steel, and austenitic-ferritic steel.

12. An electronic device, comprising: The electronic device comprises the millimeter wave antenna as claimed in any one of claims 1 to 11.

13. The electronic device of claim 12, wherein, The electronic device is one of a customer premises equipment (CPE) and a millimeter wave radar.

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