Antenna device and electronic equipment

Abstract

The invention provides an antenna device and electronic equipment, and belongs to the technical field of antennas. The antenna device comprises at least three layers of dielectric substrates and at least one group of radiation structures, the at least three layers of dielectric substrates are arranged in a laminated manner, wherein the dielectric substrates with two covered side surfaces form a first dielectric substrate; the at least one group of radiation structures are located on the first dielectric substrate; the at least one group of radiation structures comprises at least one first waveguide array element and at least one second waveguide array element, the first waveguide array element has a first radiation aperture, and the second waveguide array element has a second radiation aperture; the at least one first waveguide array element and the at least one second waveguide array element are arranged on the first dielectric substrate in parallel, and the normal directions of the first radiation aperture and the second radiation aperture are different. According to the antenna device provided by the invention, the coverage range of a single millimeter wave substrate integrated waveguide phased array is enlarged, the antenna device is easily integrated with an integrated radio frequency front-end circuit, and the antenna device has excellent scanning performance.

Description

Technical Field

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

[0002] As society demands higher and higher data transmission rates, millimeter wave spectrum is gradually being developed and utilized, and millimeter wave antennas are attracting people's attention. Millimeter wave phased array antennas have the characteristics of high gain of array antennas and can achieve flexible beam pointing. These advantages can be used to cope with the higher path loss during millimeter wave propagation and achieve a larger coverage range for a single antenna. Therefore, phased array antennas are considered to be the best antenna solution for 5G millimeter wave mobile communications.

[0003] However, due to the large number of array elements in the large-scale phased array antenna solution in the related technology, 5G millimeter wave communication equipment finds it difficult to meet its space requirements, which restricts the application of phased array antennas in the field of 5G millimeter wave communication technology. Summary of the invention

[0004] The present application provides an antenna device and an electronic device, which can solve the problem of restricted application of phased array antennas in the field of 5G millimeter wave communication technology.

[0005] The technical solution is as follows:

[0006] In one aspect, an antenna device is provided, the antenna device comprising: at least three layers of dielectric substrates and at least one group of radiating structures;

[0007] The at least three layers of dielectric substrates are stacked, wherein the dielectric substrate with both sides covered forms a first dielectric substrate;

[0008] The at least one group of radiation structures is located on the first dielectric substrate;

[0009] The at least one group of radiation structures includes at least one first waveguide array element and at least one second waveguide array element, the first waveguide array element has a first radiation aperture, and the second waveguide array element has a second radiation aperture; the at least one first waveguide array element and the at least one second waveguide array element are arranged in parallel on the first dielectric substrate, and the normal directions of the first radiation aperture and the second radiation aperture are different.

[0010] In some embodiments, the radiation ranges of the at least one first waveguide array element and the at least one second waveguide array element at least partially overlap.

[0011] In some embodiments, the angle Φ between the normal line of the first radiation aperture and the normal line of the second radiation aperture ranges from 12° to 22°.

[0012] In some embodiments, the second waveguide array element is located on one side of the first waveguide array element, and the second radiation aperture is smoothly connected to the first radiation aperture.

[0013] In some embodiments, the first waveguide array element includes a first side and a second side, the height of the first side is smaller than the second side, so that the first radiation aperture is inclined toward the side where the first side is located;

[0014] The second waveguide array element is located on the side where the second side is located, and the height of the second waveguide array element is equal to the height of the second side.

[0015] In some embodiments, the number of the first waveguide array elements is two, the two first waveguide array elements are respectively located on both sides of the at least one second waveguide array element, and the two first waveguide array elements are respectively connected to the at least one second waveguide array element with the second side edges, so that the radiation structure has a trapezoidal radiation aperture.

[0016] In some embodiments, the first waveguide array element includes a first waveguide channel, and the first waveguide channel is surrounded by two rows of first metal vias arranged at intervals; the outlet of the first waveguide channel is arranged obliquely to form the first radiation aperture;

[0017] and / or,

[0018] The second waveguide array element includes a second waveguide channel, and the second waveguide channel is surrounded by two rows of first metal vias arranged at intervals; the outlet of the second waveguide channel is arranged horizontally to form the second radiation aperture.

[0019] In some embodiments, at least two first matching via holes are disposed in the first waveguide channel, the at least two first matching via holes are arranged at an angle, and the inclination direction of the at least two first matching via holes is the same as the inclination direction of the first radiation aperture.

[0020] In some embodiments, at least two second matching via holes are disposed in the second waveguide channel, and the at least two second matching via holes are arranged obliquely toward the side where the first waveguide array element is located.

[0021] In some embodiments, the dielectric substrates located on two sides of the first dielectric substrate are formed as second dielectric substrates;

[0022] The second dielectric substrate is provided with a plurality of second metal vias arranged at intervals on edges corresponding to the first radiation aperture and the second radiation aperture.

[0023] On the other hand, an electronic device is provided, wherein the electronic device comprises the antenna device described in the present application.

[0024] The beneficial effects of the technical solution provided by this application include at least:

[0025] The antenna device of the present application includes at least three layers of dielectric substrates and at least one group of radiation structures, wherein the radiation structures are located on a first dielectric substrate with both sides covered, and two or more waveguide array elements are arranged in parallel on the first dielectric substrate, wherein the first waveguide array element has a first radiation aperture, and the second waveguide array element has a second radiation aperture, and the radiation aperture formed by the parallel arrangement of the two waveguide array elements is a non-planar aperture, and the non-planar aperture is utilized to improve the large-angle gain performance of the millimeter-wave substrate integrated waveguide phased array antenna, thereby increasing the coverage range of a single millimeter-wave substrate integrated waveguide phased array; the antenna device is compatible with planar circuit technology, and the entire antenna device is laminated by multiple layers of dielectric substrates, and is easy to be integrated with an integrated radio frequency front-end circuit, while maintaining a 3dB gain drop scanning range of more than ±58°, and has excellent scanning performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a schematic diagram of the structure of an antenna device provided in an embodiment of the present application;

[0028] Figure 2 It is a structural schematic diagram of a first dielectric substrate and a radiation structure provided in an embodiment of the present application;

[0029] Figure 3 is a schematic structural diagram of a first waveguide array element provided in an embodiment of the present application;

[0030] Figure 4 is a schematic structural diagram of a second waveguide array element provided in an embodiment of the present application;

[0031] Figure 5 is a schematic structural diagram of a second dielectric substrate provided in an embodiment of the present application;

[0032] Figure 6 is the H-plane radiation pattern of the antenna device provided in an embodiment of the present application;

[0033] Figure 7 This is the scanning radiation pattern of the antenna device provided in the embodiment of the present application.

[0034] The reference numerals in the figures represent respectively:

[0035] 1. Dielectric substrate;

[0036] 11. a first dielectric substrate; 12. a second dielectric substrate;

[0037] 2. Radiating structure;

[0038] 21, first waveguide array element; 2101, first side; 2102, second side; 211, first radiation aperture; 212, first waveguide channel; 213, first matching via;

[0039] 22. second waveguide array element; 221. second radiation aperture; 222. second waveguide channel; 223. second matching via hole;

[0040] 3. The first metal via;

[0041] 4. Second metal via. DETAILED DESCRIPTION

[0042] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] It should be understood that in this application, "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in the circuit structure through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals. "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 product structure. "Connection" and "connected" can both refer to a mechanical connection relationship or a physical connection relationship, that is, A is connected to B or A is connected to B, which can mean that there is a fastening component (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0045] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0046] Millimeter waves are electromagnetic waves with a frequency range of 30 to 300 GHz and a wavelength of 1 to 10 mm. Millimeter waves have the characteristics of high frequency and short wavelength, and can provide communication capabilities with high bandwidth and high transmission rate. It has a wide range of applications in communications, radar, radio astronomy and other fields. In the field of communications, millimeter waves are used in 5G mobile communication technology, which can achieve faster data transmission rates and greater network capacity. In addition, millimeter waves are also used in security detection, medical imaging and weather forecasting.

[0047] Phased array antenna is an antenna system composed of multiple antenna elements. By controlling the phase and amplitude of each antenna element, the beam forming and direction control of electromagnetic waves can be realized. Phased array antenna can change the radiation direction by changing the phase difference between antenna elements, thereby realizing functions such as beam scanning, beam tracking and beam forming of radio waves.

[0048] Substrate Integrated Waveguide (SIW) is a new type of microwave and millimeter wave integrated circuit technology, which combines the traditional waveguide structure with the printed circuit board (PCB) technology to realize the function of waveguide in planar media.

[0049] The millimeter wave phased array antenna technology based on substrate integrated waveguide technology disclosed in the related art usually adopts two technical solutions to ensure that the phased array antenna has good large-angle scanning capability.

[0050] 1. The first solution is to adopt a uniform linear array with reduced element spacing. The advantage of this solution is that it can be implemented on a single dielectric substrate, effectively ensuring a low profile height of the array; however, since reducing the element spacing will reduce the radiation aperture of the array, the gain of the phased array antenna is low. At the same time, due to the use of a uniform linear array, in a millimeter-wave phased array antenna with a small number of elements, when the scanning angle exceeds 40°, the scanning gain will decrease rapidly, and thus the large-angle scanning capability cannot be guaranteed.

[0051] 2. The second solution is to use an array with a one-dimensional three-dimensional array element layout. By adjusting the aperture plane of the array element radiation surface to form a three-dimensional layout, the far-field electric field distribution of the array antenna is changed, thereby improving the scanning capability of the millimeter-wave phased array antenna at large angles. This technology can overcome the shortcomings of the planar layout array that the scanning gain drops seriously at large angles and achieve a larger scanning angle range; however, in implementation, a spacing metal plate must be added between adjacent array elements to ensure the assembly and isolation performance of the array, which makes the size and weight of the millimeter-wave phased array antenna based on this technology relatively large. At the same time, the separate manufacturing and assembly method of the array elements makes the feeding design of this solution a more difficult problem to solve, which is not conducive to its application in 5G millimeter-wave mobile communication systems.

[0052] Therefore, the present application provides an antenna device that increases the coverage of a single millimeter-wave substrate integrated waveguide phased array, is easy to integrate with an integrated RF front-end circuit, maintains a 3dB gain drop scanning range of more than ±58°, and has excellent scanning performance.

[0053] The present application provides an electronic device. Specifically, the electronic device can be any of various types of computer system devices that are mobile or portable and perform wireless communication. Specifically, the electronic device can be a mobile phone or smart phone (e.g., a phone based on iPhone TM, an Android TM), a portable game device (e.g., NintendoDS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone TM), a laptop, a PDA, a portable Internet device, a music player, and a data storage device, other handheld devices, and such as headphones, etc. The electronic device can also be other wearable devices that need to be charged (e.g., a head-mounted device (HMD) such as an electronic bracelet, an electronic necklace, an electronic device, or a smart watch).

[0054] The electronic device can also be any one of a plurality of electronic devices, including but not limited to cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, other media recorders, radios, medical devices, vehicle transportation instruments, calculators, programmable remote controls, pagers, laptop computers, desktop computers, printers, netbook computers, personal digital assistants (PDAs), portable multimedia players (PMPs), Moving Picture Experts Group (MPEG-1 or MPEGG-2) Audio Layer 3 (MP3) players, portable medical devices, and digital cameras and combinations thereof.

[0055] In some cases, the electronic device can perform multiple functions (e.g., play music, display video, store pictures, and receive and send phone calls). If desired, the electronic device can be a device such as a cellular phone, a media player, other handheld device, a wristwatch device, a pendant device, a handset device, or other compact portable device.

[0056] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0057] On the one hand, combined with Figure 1 and Figure 2 As shown, this embodiment provides an antenna device, which includes: at least three layers of dielectric substrates 1 and at least one group of radiation structures 2.

[0058] At least three layers of dielectric substrates 1 are stacked, wherein the dielectric substrates 1 with both sides covered form a first dielectric substrate 11 ; and at least one group of radiation structures 2 is located on the first dielectric substrate 11 .

[0059] At least one group of radiation structures 2 includes at least one first waveguide array element 21 and at least one second waveguide array element 22, the first waveguide array element 21 has a first radiation aperture 211, and the second waveguide array element 22 has a second radiation aperture 221; at least one first waveguide array element 21 and at least one second waveguide array element 22 are arranged in parallel on the first dielectric substrate 11, and the normal directions of the first radiation aperture 211 and the second radiation aperture 221 are different.

[0060] The antenna device of this embodiment includes at least three layers of dielectric substrates 1 and at least one group of radiation structures 2. The radiation structure 2 is located on a first dielectric substrate 11 with both sides covered. Two or more waveguide array elements are arranged in parallel on the first dielectric substrate 11. The first waveguide array element 21 has a first radiation aperture 211, and the second waveguide array element 22 has a second radiation aperture 221. The normal directions of the first radiation aperture 211 and the second radiation aperture 221 are different, that is, the radiation directions of the two waveguide array elements are different. The radiation aperture formed by the parallel arrangement of the two waveguide array elements is a non-planar aperture. The use of the non-planar aperture can improve the large-angle gain performance of the millimeter-wave substrate integrated waveguide phased array antenna, thereby increasing the coverage range of a single millimeter-wave substrate integrated waveguide phased array.

[0061] The antenna device of this embodiment is compatible with planar circuit technology. The entire antenna device is laminated by a multi-layer dielectric substrate 1 and is easy to integrate with an integrated RF front-end circuit while maintaining a 3dB gain drop scanning range of more than ±58°, and has excellent scanning performance.

[0062] In antenna theory, aperture (or effective area) is a parameter that represents the efficiency of an antenna in receiving radio wave power. The aperture is defined as the area perpendicular to the direction of the incident radio wave and effectively intercepting the incident radio wave energy.

[0063] In this embodiment, the normal directions of the first radiation aperture 211 and the second radiation aperture 221 are different, and the first radiation aperture 211 may be a planar aperture, and the second radiation aperture 221 may be an inclined aperture.

[0064] The second waveguide array element 22 is equivalent to a planar aperture antenna, which can radiate or receive radiation energy in the front direction. The first waveguide array element 21 can radiate or receive radiation energy in the oblique direction. The antenna device can use the first waveguide array element 21 to radiate or receive in the oblique direction, and use the second array element to radiate or receive in the front direction. Compared with the millimeter wave phased array antenna of the substrate integrated waveguide technology in the related art, it has a larger radiation or reception range.

[0065] In some possible implementations, the number of dielectric substrates 1 is, for example, three, four, five, etc. When the number of dielectric substrates 1 is N, the N dielectric substrates 1 are laminated in the order of 1, 2, 3, ... N, wherein the two side surfaces of the second dielectric substrate 1 are covered by the first dielectric substrate 1 and the third dielectric substrate 1, so that the second dielectric substrate 1 is formed into a first dielectric substrate 11, which can be used to arrange at least one group of radiation structures 2. In addition, the two side surfaces of the third dielectric substrate 1 are covered by the second dielectric substrate 1 and the fourth dielectric substrate 1, so that the third dielectric substrate 1 can also be formed into a first dielectric substrate 11, which can be used to arrange at least one group of radiation structures 2.

[0066] The number of the radiation structures 2 on each first dielectric substrate 11 is also, for example, one, two, three, etc. The multiple waveguide array elements (including the first waveguide array element 21 and the second waveguide array element 22) in the radiation structure 2 form a radiation array, so that the antenna device has the radiation performance of a phased array antenna.

[0067] In some other possible implementations, the number of the first waveguide array elements 21 and the second waveguide array elements 22 in each radiation structure 2 may be the same or different. The number of the first waveguide array elements 21 may be, for example, one, two, three, etc. The number of the second waveguide array elements 22 may be, for example, one, two, three, etc.

[0068] The dielectric substrates 1 on both sides of the first dielectric substrate 11 can be used to radiate electromagnetic waves backwards, thereby improving the back lobe performance of the radiation beam.

[0069] refer to Figure 2 As shown, in some possible implementations, the radiation apertures of the first waveguide array element 21 and the second waveguide array element 22 are respectively located at the edge of the first dielectric substrate 11, and the edge shape of the first dielectric substrate 11 is the same as the shape of the radiation aperture.

[0070] Exemplarily, the shape of the first dielectric substrate 11 corresponding to the first radiation aperture 211 of the first waveguide array element 21 is also an inclined shape. In another exemplary embodiment, the shape of the first dielectric substrate 11 corresponding to the second radiation aperture 221 of the second waveguide array element 22 is a planar shape.

[0071] In some embodiments, the radiation ranges of at least one first waveguide array element 21 and at least one second waveguide array element 22 at least partially overlap.

[0072] Through the above arrangement, the radiation structure 2 composed of the first waveguide array element 21 and the second waveguide array element 22 can form a continuous radiation range in space, thereby realizing large-angle radiation scanning of the phased array antenna.

[0073] Combination Figure 3As shown, in some embodiments, the angle Φ between the normal line of the first radiation aperture 211 and the normal line of the second radiation aperture 221 ranges from 12° to 22°.

[0074] Through the above arrangement, the antenna device of this embodiment can use the first radiation aperture 211 of the first waveguide array element 21 to achieve a scanning range exceeding ±58°, and has excellent scanning performance.

[0075] In some possible implementations, the value of the angle Φ is, for example, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19°, 20°, 21°, 22°, etc. Optionally, the value of the angle Φ is 17°.

[0076] Combination Figure 2 As shown, in some embodiments, the second waveguide array element 22 is located on one side of the first waveguide array element 21 , and the second radiation aperture 221 is smoothly connected to the first radiation aperture 211 .

[0077] Through the above arrangement, the radiation or receiving range of the second waveguide array element 22 and the first waveguide array element 21 can be smoothly connected, ensuring the uniformity of the radiation and receiving performance of the antenna device within the entire coverage range.

[0078] Combination Figure 2 and Figure 3 As shown, in some embodiments, the first waveguide array element 21 includes a first side 2101 and a second side 2102, and the height of the first side 2101 is less than the second side 2102, so that the first radiation aperture 211 is inclined toward the side where the first side 2101 is located; the second waveguide array element 22 is located on the side where the second side 2102 is located, and the height of the second waveguide array element 22 is equal to the height of the second side 2102.

[0079] The second waveguide array element 22 is arranged on the side where the second side edge 2102 of the first waveguide array element 21 is located, so that the radiation structure 2 can use the second waveguide array element 22 to radiate or receive energy toward the front, and can also use the first waveguide array element 21 to radiate or receive energy toward one side. The entire coverage range of the radiation structure 2 is distributed in a fan-shaped area in space, which is conducive to achieving a maximum coverage arrangement.

[0080] Combination Figure 2 and Figure 3 As shown, in some embodiments, the number of the first waveguide array elements 21 is two, the two first waveguide array elements 21 are respectively located on both sides of at least one second waveguide array element 22, and the two first waveguide array elements 21 are respectively connected to the at least one second waveguide array element 22 by the second side edges 2102, so that the radiation structure 2 has a trapezoidal radiation aperture.

[0081] With the above arrangement, the radiation structure 2 of this embodiment uses two first waveguide array elements 21 and at least one second waveguide array element 22 to construct a trapezoidal non-planar aperture, which has a greater angular gain than a planar aperture and can achieve a larger radiation range.

[0082] Combination Figure 3 As shown, in some embodiments, the first waveguide array element 21 includes a first waveguide channel 212, and the first waveguide channel 212 is surrounded by two rows of first metal vias 3 arranged at intervals; the outlet of the first waveguide channel 212 is arranged obliquely to form a first radiation aperture 211. The first waveguide channel 212 surrounded by two rows of first metal vias 3 can realize the transmission of millimeter waves on the planar dielectric substrate 1, which has the advantages of simple structure and reliability.

[0083] Combination Figure 3 As shown, in some embodiments, at least two first matching vias 213 are provided in the first waveguide channel 212, and the at least two first matching vias 213 are arranged obliquely, and the oblique direction of the at least two first matching vias 213 is the same as the oblique direction of the first radiation aperture 211. Through the above arrangement, the antenna device can completely cover the matching bandwidth of 24.25-29.5 GHz.

[0084] Combination Figure 4 As shown, in some embodiments, the second waveguide array element 22 includes a second waveguide channel 222, and the second waveguide channel 222 is surrounded by two rows of first metal vias 3 arranged at intervals; the outlet of the second waveguide channel 222 is arranged horizontally to form a second radiation aperture 221. The second waveguide channel 222 surrounded by two rows of first metal vias 3 can realize the transmission of millimeter waves on the planar dielectric substrate 1, which has the advantages of simple structure and reliability.

[0085] Combination Figure 4 As shown, in some embodiments, at least two second matching vias 223 are provided in the second waveguide channel 222, and the at least two second matching vias 223 are arranged obliquely toward the side where the first waveguide array element 21 is located. Through the above arrangement, the antenna device can completely cover the matching bandwidth of 24.25-29.5 GHz.

[0086] Combination Figure 4 As shown, in some embodiments, the dielectric substrate 1 located on two sides of the first dielectric substrate 11 is formed into a second dielectric substrate 12; the second dielectric substrate 12 is provided with a plurality of second metal vias 4 arranged at intervals at the edges corresponding to the first radiation aperture 211 and the second radiation aperture 221.

[0087] The second metal vias 4 arranged along the upper outer contour of the second dielectric substrate 12 in the two-layer second dielectric substrate 12 near the radiation aperture area are used to facilitate the reduction of the backward radiation of the antenna device.

[0088] In some possible implementations, the first dielectric substrate 11 of the antenna device is implemented using a double-layer Rogers 4003 substrate, whose relative dielectric constant is 3.55 and whose electric loss tangent is 0.0027; the second dielectric substrate 12 uses a Rogers 4003 substrate with thicknesses of 0.813 mm and 1.524 mm respectively, and the backward radiation improvement dielectric substrate 1 located at the top and bottom is Rogers 5880 board material, which has a relative dielectric constant of 2.2, an electric loss tangent of 0.0009, and a thickness of 3.404 mm.

[0089] The antenna device provided in the embodiment of the present application is simulated using electromagnetic simulation software to obtain results such as the active radiation pattern (H plane) of the unit antenna and the scanning radiation pattern of the antenna.

[0090] in, Figure 6 It is the H-plane radiation pattern of the antenna device. It can be seen from the figure that the radiation beam of the first waveguide array element 21 in the antenna device deviates from the end-fire direction by about 20°, while the radiation beam of the second waveguide array element 22 basically maintains the end-fire direction. By changing the normal direction of the first waveguide array element 21 and the second waveguide array element 22 by layout, the radiation performance at a large angle can be improved; and the radiation beam gains of the two elements are relatively close, indicating that the phased array antenna with a trapezoidal (non-planar) aperture has good isolation between the spatial radiation of the elements.

[0091] Figure 7 The radiation patterns of the antenna device when scanning the H plane at 0°, 10°, 20°, 30°, 40°, 50°, and 58° at 25.75 GHz are given, where Theta represents the elevation angle. It can be seen from the figure that the antenna device of this embodiment has good scanning characteristics and can extend the scanning range with a gain drop of 3 dB to ±58°.

[0092] On the other hand, this embodiment provides an electronic device, which includes the antenna device of the present application. The electronic device of this embodiment adopts the antenna device of the present application and has all the beneficial technical effects of all the embodiments herein.

[0093] In some possible implementations, the terminal device may include components such as a radio frequency (RF) circuit, a memory including one or more computer-readable storage media, an input unit, a display unit, a sensor, an audio circuit, a processor including one or more processing cores, and a power supply.

[0094] The RF circuit can be used for receiving and sending signals during information transmission or calls. In particular, after receiving the downlink information of the base station, it is handed over to one or more processors for processing; in addition, the uplink data is sent to the base station. Usually, the RF circuit includes an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (Subscriber Identity Module, SIM) card, a transceiver, a coupler, a low noise amplifier (Low Noise Amplifier, LNA), a duplexer, etc. The antenna is the antenna device described in any embodiment of the present application.

[0095] In addition, the RF circuit can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobilecommunication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), etc.

[0096] It should be noted that the "several" and "at least one" mentioned in this article refer to one or more, and "multiple" and "at least two" refer to two or more. "And / or" describes the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0097] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0098] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0099] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. An antenna device, characterized in that: The antenna device comprises: at least three layers of dielectric substrate (1) and at least one group of radiation structures (2); The at least three layers of dielectric substrates (1) are stacked, wherein the dielectric substrate (1) with both sides covered forms a first dielectric substrate (11); The at least one group of radiation structures (2) is located on the first dielectric substrate (11); The at least one group of radiation structures (2) comprises at least one first waveguide array element (21) and at least one second waveguide array element (22), wherein the first waveguide array element (21) has a first radiation aperture (211), and the second waveguide array element (22) has a second radiation aperture (221); the at least one first waveguide array element (21) and the at least one second waveguide array element (22) are arranged in parallel on the first dielectric substrate (11), and the normal directions of the first radiation aperture (211) and the second radiation aperture (221) are different.

2. The antenna device according to claim 1, characterized in that The radiation ranges of the at least one first waveguide array element (21) and the at least one second waveguide array element (22) at least partially overlap.

3. The antenna device according to claim 1, characterized in that The value range of the angle Φ between the normal line of the first radiation aperture (211) and the normal line of the second radiation aperture (221) is 12°-22°.

4. The antenna device according to any one of claims 1 to 3, characterized in that: The second waveguide array element (22) is located on one side of the first waveguide array element (21), and the second radiation aperture (221) is smoothly connected to the first radiation aperture (211).

5. The antenna device according to claim 4, characterized in that: The first waveguide array element (21) comprises a first side edge (2101) and a second side edge (2102), the first side edge (2101) being smaller in height than the second side edge (2102), so that the first radiation aperture (211) is inclined toward the side where the first side edge (2101) is located; The second waveguide array element (22) is located on the side where the second side edge (2102) is located, and the height of the second waveguide array element (22) is equal to the height of the second side edge (2102).

6. The antenna device according to claim 5, characterized in that The number of the first waveguide array elements (21) is two, the two first waveguide array elements (21) are respectively located on both sides of the at least one second waveguide array element (22), and the two first waveguide array elements (21) are respectively connected to the at least one second waveguide array element (22) by the second side edges (2102), so that the radiation structure (2) has a trapezoidal radiation aperture.

7. The antenna device according to any one of claims 1 to 6, characterized in that: The first waveguide array element (21) comprises a first waveguide channel (212), the first waveguide channel (212) being surrounded by two rows of first metal vias (3) arranged at intervals; the outlet of the first waveguide channel (212) is arranged at an angle to form the first radiation aperture (211); and / or, The second waveguide array element (22) comprises a second waveguide channel (222), the second waveguide channel (222) being surrounded by two rows of first metal vias (3) arranged at intervals; the outlet of the second waveguide channel (222) is arranged horizontally to form the second radiation aperture (221).

8. The antenna device according to claim 7, characterized in that: At least two first matching via holes (213) are provided in the first waveguide channel (212); the at least two first matching via holes (213) are arranged at an angle, and the inclination direction of the at least two first matching via holes (213) is the same as the inclination direction of the first radiation aperture (211).

9. The antenna device according to claim 7, characterized in that: At least two second matching via holes (223) are provided in the second waveguide channel (222), and the at least two second matching via holes (223) are arranged obliquely toward the side where the first waveguide array element (21) is located.

10. The antenna device according to any one of claims 1 to 9, characterized in that: The dielectric substrate (1) located on two side surfaces of the first dielectric substrate (11) is formed into a second dielectric substrate (12); The second dielectric substrate (12) is provided with a plurality of second metal vias (4) arranged at intervals at edges corresponding to the first radiation aperture (211) and the second radiation aperture (221).

11. An electronic device, characterized in that: The electronic device comprises the antenna device according to any one of claims 1 to 10.

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