Antenna structure and electronic equipment

Abstract

The embodiment of the invention provides an antenna structure and electronic equipment, relates to the technical field of antennas, and is used for realizing a dual-beam antenna structure. The antenna structure comprises a power divider extending along a first direction, an input end arranged on the power divider, and a first radiation part and a second radiation part which are positioned on two opposite sides of the power divider. Wherein the input end is located between the first radiation part and the second radiation part. And the first radiation part and the second radiation part are positioned on the same side of the power divider along the thickness direction of the power divider. According to the antenna structure provided by the embodiment of the invention, the radiation gains in the first direction are mutually suppressed and are cancelled in opposite directions, the gains are relatively small, the radiation gains in the direction perpendicular to the first direction are mutually superposed and are enhanced in the same direction, and the gains are relatively large.

Description

Technical Field

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

[0002] With the development of wireless local area networks (WLAN), its usage scenarios, product specifications and frequency bands are constantly increasing. With the different usage scenarios of WLAN, the radiation direction, radiation intensity and radiation range of the antenna structure are also different.

[0003] How to combine the radiation direction of the antenna structure with the usage scenario is the problem that needs to be solved at present. Summary of the invention

[0004] Embodiments of the present application provide an antenna structure and an electronic device for realizing a dual-beam antenna structure.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect of an embodiment of the present application, an antenna structure is provided, comprising a power divider extending along a first direction, an input terminal arranged on the power divider, and a first radiating portion and a second radiating portion located on opposite sides of the power divider. The input terminal is located between the first radiating portion and the second radiating portion. The first radiating portion and the second radiating portion are located on the same side of the power divider along the thickness direction of the power divider.

[0007] In the antenna structure provided in the embodiment of the present application, the electrical signal is transmitted to the power divider through the input end, and is output by the first radiating part and the second radiating part. The radiation gains of the first radiating part and the second radiating part in the first direction suppress each other, cancel each other in the opposite direction, and form a zero point. The radiation gains of the first radiating part and the second radiating part in the direction perpendicular to the first direction are superimposed on each other and enhanced in the same direction. This makes the radiation gain of the antenna structure in the first direction smaller, and the radiation gain in the direction perpendicular to the first direction larger. In addition, in the scheme of the embodiment of the present application, the plane where the power divider is located intersects with the plane where the first radiating part and the second radiating part are located, so that the radiation gains can also be superimposed on the plane perpendicular to the power divider. Therefore, the antenna structure provided in the embodiment of the present application is deployed in the corridor, which can improve the signal coverage in the room, while reducing the interference between the directions along the corridor, thereby improving the effect of concurrent performance under networking.

[0008] The antenna structure provided in the embodiment of the present application has a simple installation process, simple assembly, low assembly complexity, low cost, and can be applied to the surface mounted technology (SMT) process.

[0009] In a possible implementation, the first radiating portion and the second radiating portion both extend along the thickness direction of the power divider, and the thickness direction of the power divider intersects with the plane where the power divider is located. In this way, the plane where the first radiating portion and the second radiating portion are located intersects with the plane where the power divider is located.

[0010] In a possible implementation, the antenna structure further includes a connecting portion; the connecting portion is disposed between the first radiating portion and the second radiating portion and connected to the input end; the connecting portion and the first radiating portion are located on the same side of the power divider along the thickness direction of the power divider. In this way, the power divider can be fed through the connecting portion.

[0011] In a possible implementation, the first radiating portion and the second radiating portion are symmetrically arranged about the connecting portion. In this way, the gain of the antenna structure in the first direction is minimum.

[0012] In a possible implementation, along the thickness direction of the power divider, the difference between any two of the distance between the surface of the first radiating portion away from the power divider and the plane where the power divider is located, the distance between the surface of the second radiating portion away from the power divider and the plane where the power divider is located, and the distance between the surface of the connecting portion away from the power divider and the plane where the power divider is located is less than 0.1 mm. In this way, the coplanarity of the first radiating portion, the second radiating portion and the connecting portion can be made less than 0.1 mm, thereby improving the installation reliability of the SMT process.

[0013] In a possible implementation, along the thickness direction of the power divider, the distance between the surface of the first radiating portion away from the power divider and the plane where the power divider is located and the distance between the surface of the first radiating portion away from the power divider and the plane where the power divider is located are both less than 8 mm. In this way, the assembly requirements of SMT can be met.

[0014] In a possible implementation, along the third direction, the maximum size of the power divider is greater than 1 mm; the third direction intersects the first direction, and the plane formed by the third direction and the first direction is parallel to the plane where the power divider is located. In this way, the electrical size of the antenna structure can be increased.

[0015] In a possible implementation, along the direction from the input end to the first radiating portion, the size of the power divider in the third direction increases. In this way, the antenna structure provided in the embodiment of the present application has multiple implementations.

[0016] In a possible implementation, along the direction from the input end to the second radiating portion, the size of the power divider in the third direction increases. In this way, the antenna structure provided in the embodiment of the present application has multiple implementations.

[0017] In a possible implementation, along the first direction, the size of the power divider is 0.5λ to 0.8λ, where λ is the wavelength corresponding to the working frequency of the antenna structure. In this way, the electrical size of the antenna structure can be increased.

[0018] In a possible implementation, the power divider, the first radiating portion, and the second radiating portion are integrally formed, thereby eliminating the need for manual assembly, reducing costs, and improving the integration of the antenna structure.

[0019] In a possible implementation, the antenna structure further includes a circuit board and a connecting portion; the connecting portion is disposed between the first radiating portion and the second radiating portion and connected to the input end; the connecting portion and the first radiating portion are located on the same side of the power divider along the thickness direction of the power divider; the first radiating portion is electrically connected to the first pad on the circuit board, the second radiating portion is electrically connected to the second pad on the circuit board, and the connecting portion is electrically connected to the third pad on the circuit board. In this way, the antenna structure does not need to be fed by a cable.

[0020] In a possible implementation, the first pad and the second pad are used for grounding, and the third pad is used for transmitting a feeding signal. In this way, the antenna structure does not need to be fed by a cable.

[0021] In a possible implementation, the distance between the edge of the power divider and the edge of the circuit board is greater than 10 mm. In this way, the downtilt angle coverage of the dual-beam gain can be larger when the antenna structure is ceiling mounted.

[0022] In a possible implementation, both the first radiating portion and the second radiating portion include monopole radiators. In this way, the antenna structure provided in the embodiment of the present application has multiple implementations.

[0023] According to a second aspect of an embodiment of the present application, an electronic device is provided, comprising the antenna structure of any one of the first aspects and a housing, wherein the antenna structure is located inside the housing.

[0024] The electronic device provided in the second aspect of the embodiment of the present application includes the antenna structure of any one of the first aspects, and its beneficial effects are the same as those of the antenna structure, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a network architecture provided in an embodiment of the present application;

[0026] Figure 2A A radiation diagram illustrating an antenna structure;

[0027] Figure 2B A radiation diagram illustrating another antenna structure;

[0028] Figure 3A schematic diagram of wireless AP deployment provided in an embodiment of the present application;

[0029] Figure 4 Another wireless AP deployment schematic diagram provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of an antenna structure provided in an embodiment of the present application;

[0031] Figure 6 A front view of an antenna structure provided in an embodiment of the present application;

[0032] Figure 7 A schematic diagram of another antenna structure provided in an embodiment of the present application;

[0033] Figure 8 A top view of an antenna structure provided in an embodiment of the present application;

[0034] Fig. 9 A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0035] Fig. 10A A simulation diagram of the radiation intensity of an antenna provided in an embodiment of the present application;

[0036] Fig. 10B A simulation diagram of the radiation intensity of another antenna provided in an embodiment of the present application;

[0037] Fig. 10C A simulation diagram of the radiation intensity of another antenna provided in an embodiment of the present application;

[0038] Fig.11 An antenna radiation pattern provided in an embodiment of the present application.

[0039] Reference numerals

[0040] 100-antenna structure; 11-structural component; 101-first antenna; 102-second antenna; 103-first docking point; 104-second docking point; 110-power divider; 210-first radiating part; 220-second radiating part; 230-connecting part; 310-first soldering pad; 320-second soldering pad; 330-third soldering pad; 300-circuit board; 410-input end; 421-first output end; 422-second output end. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0042] In the following, the terms "second", "first", etc. are used only for convenience of description and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "second", "first", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0043] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly according to changes in the orientation of the components in the drawings.

[0044] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. In addition, the term "coupled" can be a direct electrical connection or an indirect electrical connection through an intermediate medium. The term "contact" can be a direct contact or an indirect contact through an intermediate medium.

[0045] In the embodiments of the present application, "and / or" describes the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B may be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0046] For ease of understanding, the relevant technical terms involved in the embodiments of the present application are explained and described below.

[0047] Wireless AP: Wireless access point (session point or access bridge) (access point, AP) is a very broad name, which includes not only simple wireless access point (wireless AP), but also wireless router (including wireless gateway, wireless bridge) and other types of equipment. Wireless AP supports 2.4GHz wireless applications and adopts dual-channel RF output, each with a maximum output of 600 milliwatts. It can be deployed in a large area through a wireless distribution system (point-to-point and point-to-multipoint bridging), and is a necessary wireless AP device for hotels to develop wireless networks.

[0048] Home gateway: It is a network device located inside a modern home. Its function is to enable home users to connect to the Internet, so that various smart devices in the home can obtain Internet services, or enable these smart devices to communicate with each other. Simply put, the home gateway is a bridge that enables networking among various smart devices within the home and interconnects from the home interior to the external network. From a technical perspective, the home gateway implements bridging / routing, protocol conversion, address management and conversion inside the home and from the interior to the exterior, assumes the responsibilities of a firewall, and provides services such as possible Voice over Internet Protocol (VoIP) or Video over Internet Protocol (Video over IP).

[0049] Omnidirectional antenna: That is, it shows uniform radiation in all 360° on the horizontal radiation pattern, which means it has no directionality. On the vertical radiation pattern, it shows a beam with a certain width. Generally, the smaller the beam width, the greater the gain. Omnidirectional antennas are generally used in the station type of suburban large-area systems in mobile communication systems, with a large coverage area.

[0050] Beam width: The angle between the two half-power points of the beam. It is related to the antenna gain. Generally, the greater the antenna gain, the narrower the beam and the higher the detection angle resolution. The beam width is divided into horizontal beam width and vertical beam width.

[0051] Horizontal beam width: In the horizontal direction, on both sides of the maximum radiation direction, the angle between the two directions where the antenna gain drops by 3 dB.

[0052] Vertical beam width: In the vertical direction, on both sides of the maximum radiation direction, the angle between the two directions where the antenna gain drops by 3 dB.

[0053] Electrical length: It refers to the ratio of the physical length (i.e., mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave.

[0054] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0055] The embodiments of the present application illustrate an electronic device. This electronic device can be, for example, a wireless access point (AP), a home gateway, a home hotspot, a customer premise equipment (CPE), etc. The embodiments of the present application do not make special restrictions on the specific form of the above-mentioned electronic device. For the convenience of description in the following embodiments, all are exemplified by taking the electronic device as a wireless AP.

[0056] Illustrate a network architecture, including the above-mentioned wireless AP. As Figure 1 As shown, the network architecture includes a server, a wireless access point (AP) device, and a terminal device.

[0057] The electronic device provided by the embodiment of the present application is a wireless AP. The wireless AP is connected between the network (Internet) and the terminal device. The network is connected to the server, the network obtains a signal from the server, and transmits this signal to the wireless AP, and then the signal is transmitted to each terminal device by the antenna provided in the wireless AP.

[0058] Exemplarily, as Figure 1 shown, the wireless AP includes AP1 and AP2. The terminal devices include terminal device 1, terminal device 2, terminal device 3, and terminal device 4.

[0059] As Figure 1 shown, terminal device 1 and terminal device 2 are data-connected to AP1, and terminal device 3 and terminal device 4 are data-connected to AP2. Among them, the data connection between the above terminal device and the above wireless AP can be a wired connection, or it can also be a wireless connection. The embodiment of the present application does not limit this.

[0060] Exemplarily, terminal device 1 is wired-connected to AP1, terminal device 2 is wirelessly connected to AP1, terminal device 3 is wired-connected to AP2, and terminal device 4 is wirelessly connected to AP2.

[0061] In some embodiments, the terminal device may include a smart phone, smart home appliances (such as air conditioners, electric fans, washing machines, refrigerators, etc.), smart TVs, and smart security devices (such as cameras).

[0062] Among them, the antenna included in the wireless AP can be a low-frequency antenna, or it can also be a high-frequency antenna. For example, the low-frequency antenna can be a 2G antenna or a 3G antenna. The high-frequency antenna can be a 5G antenna or a 6G antenna.

[0063] The embodiment of the present application does not limit the operating frequency of the antenna in the wireless AP, and it can be reasonably set according to the actual situation.

[0064] Based on this, the embodiment of the present application also schematically shows a wireless AP, which includes a housing and an antenna structure disposed inside the housing.

[0065] Exemplarily, the antenna structure may include an omnidirectional antenna.

[0066] As Figure 2A shown, a schematic diagram showing the radiation intensity of the omnidirectional antenna is shown. From Figure 2A it can be seen that on the horizontal direction (the plane composed of x and z) diagram, the signal is omnidirectionally radiated. That is to say, the signal is uniformly radiated in 360°, that is, it has no directivity.

[0067] Alternatively, the antenna structure may include a dual beam antenna, for example.

[0068] like Figure 2B As shown in FIG. , a schematic diagram of the radiation intensity of a dual-beam antenna is shown. Figure 2B It can be seen that in the horizontal pattern, the signal has main lobe gain and zero point suppression. Figure 2B As shown in FIG. 1 , the gain of the signal in the z direction is more obvious, and the gain in the x direction is smaller. The x direction and the z direction intersect.

[0069] Figure 3 A schematic diagram of a specific application scenario of an electronic device (wireless AP) provided in an embodiment of the present application is shown. Figure 3 As shown in the figure, in the dormitory scenario, the rooms are distributed on both sides of the corridor. Considering the wireless LAN and cost, it is better to deploy wireless APs in the corridor than to deploy APs in the room, because fewer wireless APs are required when wireless APs are deployed in the corridor.

[0070] Exemplarily, the wireless AP is ceiling-mounted and deployed in a corridor, and a plurality of wireless APs are arranged at intervals.

[0071] In this way, the radiation of the wireless AP can cover the rooms on both sides of the corridor.

[0072] The figure shows a deployment method of a wireless AP, wherein the antenna structure of the wireless AP is an omnidirectional antenna. Figure 3 As shown, along the direction x where the corridor extends, the AP gain is higher.

[0073] Along the corridor, the radiation of wireless AP does not need to pass through the wall, which occurs in the direction x along the corridor. Multipath signals are superimposed, causing the signal strength to decay slowly, and there is strong interference between adjacent wireless APs, which affects the channel multiplexing when multiple wireless APs are networked. However, the radiation of the room needs to penetrate the wall, and the signal attenuation when reaching the inside of the room is greater, resulting in lower signal strength inside the room. Therefore, the signal strength in the room is lower than that in the corridor.

[0074] Another wireless AP deployment method is shown, where the antenna structure of the wireless AP is a dual-beam antenna. Figure 4 As shown, the signal radiates in a fan-shaped manner to the rooms on both sides of the corridor, and the interference between adjacent wireless APs is weak.

[0075] Compared with omnidirectional antennas, dual-beam antennas form a zero point in the corridor direction, with obvious gain jitter drop, which is significantly suppressed. The interference between wireless APs is significantly reduced, and the signal strength in the room is higher, which is conducive to improving the concurrent throughput performance of the entire network. Therefore, dual-beam antennas have a higher beam matching degree in dormitory scenarios.

[0076] Based on this, in order to realize a low-cost antenna structure with dual-beam gain, an embodiment of the present application provides an antenna structure. Figure 5 As shown, the antenna structure 100 includes a power divider 110 and a first radiating portion 210 and a second radiating portion 220 located at two opposite sides of the power divider 110 .

[0077] like Figure 5 As shown, the power divider 110 extends along a first direction x.

[0078] The power divider 110 has an input terminal 410, a first output terminal 421 and a second output terminal 422. The first output terminal 421 and the second output terminal 422 are respectively located at two opposite sides of the power divider 110. The input terminal 410 is located between the first output terminal 421 and the second output terminal 422.

[0079] Along the first direction x, the first radiating portion 210 and the second radiating portion 220 are respectively located on two opposite sides of the power divider 110 .

[0080] The first radiating portion 210 is connected to the first output end 421 , and the second radiating portion 220 is connected to the second output end 422 .

[0081] For ease of understanding, the extension direction of the power divider 110 is referred to as the first direction x, the thickness direction of the power divider 110 is referred to as the second direction y, and the width direction of the power divider 110 is referred to as the third direction z. That is, the plane formed by the first direction x and the third direction z is parallel to the plane where the power divider 110 is located, and the thickness direction of the power divider 110 intersects with the plane where the power divider 110 is located.

[0082] It is explained here that the first direction x, the second direction y and the third direction z intersect each other. That is, the first direction x and the second direction y intersect each other, the second direction y intersects with the third direction z, and the first direction x intersects with the third direction z. For example, the first direction x and the second direction y are perpendicular, the second direction y is perpendicular to the third direction z, and the first direction x is perpendicular to the third direction z, that is, the first direction x, the second direction y and the third direction z are perpendicular to each other.

[0083] like Figure 5 As shown, the first radiating portion 210 and the second radiating portion 220 are located on the same side of the power divider 110 along the thickness direction y of the power divider 110 .

[0084] That is, the first radiating portion 210 and the second radiating portion 220 are located on the same side of the power divider 110 along the second direction y.

[0085] For example, Figure 5As shown, the extending direction of the first radiating portion 210 is the same as the extending direction of the second radiating portion 220 , and both the first radiating portion 210 and the second radiating portion 220 extend along the thickness direction (second direction) y of the power divider 110 .

[0086] That is to say, both the first radiating portion 210 and the second radiating portion 220 extend in a direction intersecting with the plane where the power divider 110 is located. That is, the first radiating portion 210 extends in a direction intersecting with the plane where the power divider 110 is located, and the second radiating portion 220 extends in a direction intersecting with the plane where the power divider 110 is located, and the first radiating portion 210 and the second radiating portion 220 are located on the same side of the power divider 110.

[0087] In some embodiments, the power divider 110 , the first radiating portion 210 , and the second radiating portion 220 are integrally formed.

[0088] In this way, no manual assembly is required, the cost is reduced, and the integration of the antenna structure 100 is improved.

[0089] For example, Figure 5 As shown, along the third direction z, the size W of the power divider 110 is greater than 1 mm. That is, in the width direction, the size W of the power divider 110 is greater than 1 mm. That is, the width of the power divider 110 is greater than 1 mm. For example, the size W of the power divider 110 in the third direction z is 1.5 mm, 2 mm, 3 mm, 4 mm or 5 mm, etc.

[0090] It is explained here that the dimension W of the power divider 110 in the third direction z is the maximum dimension of the power divider 110 in the third direction z.

[0091] In this way, the electrical size of the antenna structure 100 can be increased.

[0092] Exemplarily, along the third direction z, the size of the first radiating portion 210 is greater than 1 mm, and the size of the second radiating portion 220 is greater than 1 mm.

[0093] Along the third direction z, the size of the first radiating portion 210 and the size of the second radiating portion 220 may be the same as the size of the power divider 110 , or may be different.

[0094] For example, along the direction from the input end 410 (connecting portion 230 ) to the first radiating portion 210 , the size of the power divider 110 in the third direction z increases.

[0095] Or, for example, along the direction from the input end 410 (connecting portion 230) to the second radiating portion 220, the size of the power divider 110 in the third direction z increases. The embodiment of the present application does not limit the shape of the power divider 110, which can be reasonably set according to actual conditions.

[0096] For example, Figure 6 As shown, along the first direction x, the size L1 of the power divider 110 is in the range of 0.5λ to 0.8λ, where λ is the wavelength corresponding to the operating frequency of the antenna structure 100. For example, the size L1 of the power divider 110 in the first direction x is 0.5λ, 0.6λ, 0.7λ or 0.8λ, etc.

[0097] For example, Figure 6 As shown, along the thickness direction (second direction) y of the power divider 110, the distance d1 between the surface of the first radiating portion 210 away from the power divider 110 and the plane where the power divider 110 is located is less than 8 mm, and the distance d1 between the surface of the second radiating portion 220 away from the power divider 110 and the plane where the power divider 110 is located is less than 8 mm.

[0098] That is, a dimension d1 of the first radiating portion 210 in the second direction y is less than 8 mm, and a dimension d2 of the second radiating portion 220 in the second direction y is less than 8 mm.

[0099] It is explained here that, in some embodiments, the first radiating portion 210 or the second radiating portion 220 may be a curved surface or an irregular shape, in which case the size of the first radiating portion 210 in the second direction y is the straight-line distance of the first radiating portion 210 in the second direction y. In other words, only the distance between the surface of the first radiating portion 210 away from the power divider 110 and the plane where the power divider 110 is located and the distance between the surface of the second radiating portion 220 away from the power divider 110 and the plane where the power divider 110 is located are considered.

[0100] For example, the dimension d1 of the first radiating portion 210 in the second direction y may be 7mm, 6mm, 5mm, 4mm, 3mm, 2mm or 1mm, etc. The dimension d2 of the second radiating portion 220 in the second direction y may be 7mm, 6mm, 5mm, 4mm, 3mm, 2mm or 1mm, etc.

[0101] In this way, the overall size of the antenna structure 100 in the second direction y is less than 8 mm. Compared with the existing antenna structure, the antenna structure 100 provided in the embodiment of the present application has a lower size in the second direction y (i.e., the cross-sectional height), which can meet the assembly requirements of surface mounted technology (SMT) and facilitate the SMT process of the antenna structure 100.

[0102] Exemplarily, the first radiating portion 210 may include a monopole radiator, and the second radiating portion 220 may include a monopole radiator.

[0103] In the implementation of the present application, the input end 410 of the power divider 110 is connected to a signal line, and the antenna structure 100 is fed through the signal line.

[0104] Since the power divider 110 is connected to both the first radiating portion 210 and the second radiating portion 220 , signals are transmitted to the first radiating portion 210 and the second radiating portion 220 through the power divider 110 .

[0105] In addition, the first radiation portion 210 and the second radiation portion 220 are both grounded.

[0106] That is, a side of the first radiating portion 210 away from the power divider 110 is grounded, and a side of the second radiating portion 220 away from the power divider 110 is grounded.

[0107] In this way, passages are formed in the first radiation portion 210 and the second radiation portion 220 , respectively.

[0108] In some embodiments, Figure 5 As shown, the antenna structure 100 further includes a connecting portion 230 .

[0109] The connecting portion 230 is located on the power divider 110 , and the connecting portion 230 is connected to the input terminal 410 of the power divider 110 .

[0110] like Figure 5 As shown, the connecting portion 230 is disposed between the first radiating portion 210 and the second radiating portion 220, and the connecting portion 230 and the first radiating portion 210 are located on the same side of the power divider 110 along the thickness direction (second direction) y of the power divider 110. The connecting portion 230 and the second radiating portion 220 are located on the same side of the power divider 110 along the thickness direction (second direction) y of the power divider 110.

[0111] That is to say, the connecting portion 230 is disposed in the same direction as the first radiating portion 210 and the second radiating portion 220 .

[0112] In the embodiment of the present application, the power divider 110 may also be fed with power through the connection portion 230 .

[0113] Exemplarily, the first radiating portion 210 and the second radiating portion 220 are symmetrically arranged with respect to the connecting portion 230 .

[0114] That is to say, the connecting portion 230 is located in the middle of the power divider 110 .

[0115] In this way, the gain of the antenna structure 100 in the first direction x is minimum.

[0116] In the embodiment of the present application, the output power and phase of the power divider 110 can be adjusted according to the distance between the first radiating portion 210 , the second radiating portion 220 and the connecting portion 230 .

[0117] For example, Figure 6As shown, a distance d3 between a surface of the connection portion 230 away from the power divider 110 and a plane where the power divider 110 is located is less than 8 mm.

[0118] That is, the dimension d3 of the connection portion 230 in the second direction y is less than 8 mm. For example, the dimension d3 of the connection portion 230 in the second direction y may be 7 mm, 6 mm, 5 mm, 4 mm, 3 mm, 2 mm or 1 mm.

[0119] It is explained here that, in some embodiments, the connection portion 230 may be a curved surface or an irregular shape, in which case the size of the connection portion 230 in the second direction y is the straight-line distance of the connection portion 230 in the second direction y. In other words, only the distance between the surface of the connection portion 230 away from the power divider 110 and the plane where the power divider 110 is located is considered.

[0120] In the embodiment of the present application, a dimension d1 of the first radiating portion 210 in the second direction y, a dimension d2 of the second radiating portion 220 in the second direction y, and a dimension d3 of the connecting portion 230 in the second direction y are all less than 8 mm.

[0121] In some embodiments, the difference between any two of the distance d1 between the surface of the first radiating portion 210 away from the power divider 110 and the plane where the power divider 110 is located, the distance d2 between the surface of the second radiating portion 220 away from the power divider 110 and the plane where the power divider 110 is located, and the distance d3 between the surface of the connecting portion 230 away from the power divider 110 and the plane where the power divider 110 is located is less than 0.1 mm.

[0122] That is, along the second direction y, the difference between any two of the dimension d1 of the first radiating portion 210 , the dimension d2 of the second radiating portion 220 , and the dimension d3 of the connecting portion 230 is less than 0.1 mm.

[0123] Exemplarily, the difference between the distance d1 between the surface of the first radiating portion 210 away from the power divider 110 and the plane where the power divider 110 is located and the distance d2 between the surface of the second radiating portion 220 away from the power divider 110 and the plane where the power divider 110 is located is less than 0.1 mm. The difference between the distance d1 between the surface of the first radiating portion 210 away from the power divider 110 and the plane where the power divider 110 is located and the distance d3 between the surface of the connecting portion 230 away from the power divider 110 and the plane where the power divider 110 is located is less than 0.1 mm. The difference between the distance d1 between the surface of the first radiating portion 210 away from the power divider 110 and the plane where the power divider 110 is located and the distance d3 between the surface of the connecting portion 230 away from the power divider 110 and the plane where the power divider 110 is located is less than 0.1 mm.

[0124] That is, the coplanarity of the first radiating portion 210, the second radiating portion 220 and the connecting portion 230 is less than 0.1 mm. For example, the coplanarity may be 0.09 mm, 0.07 mm, 0.05 mm, 0.03 mm, 0.02 mm or 0.

[0125] Among them, the distance d1 between the surface of the first radiating portion 210 away from the power divider 110 and the plane where the power divider 110 is located, the distance d2 between the surface of the second radiating portion 220 away from the power divider 110 and the plane where the power divider 110 is located, and the distance d3 between the surface of the connecting portion 230 away from the power divider 110 and the plane where the power divider 110 is located can be the same, or different. The embodiment of the present application does not limit this, and it is reasonably set according to the actual situation, and it only needs to ensure that the difference between any two of the three is less than 0.1mm.

[0126] For example, the distance d1 between the surface of the first radiating portion 210 away from the power divider 110 and the plane where the power divider 110 is located, the distance d2 between the surface of the second radiating portion 220 away from the power divider 110 and the plane where the power divider 110 is located, and the distance d3 between the surface of the connecting portion 230 away from the power divider 110 and the plane where the power divider 110 is located are the same. In other words, the dimension d1 of the first radiating portion 210 in the second direction y, the dimension d2 of the second radiating portion 220 in the second direction y, and the dimension d3 of the connecting portion 230 in the second direction y are the same.

[0127] In other words, a plane formed by one end of the first radiating portion 210 away from the power divider 110 , one end of the second radiating portion 220 away from the power divider 110 , and one end of the connecting portion 230 away from the power divider 110 is parallel to the plane where the power divider 110 is located.

[0128] In this way, the reliability of the SMT process can be improved.

[0129] In some embodiments, Figure 7 As shown, the antenna structure 100 further includes a circuit board 300 .

[0130] like Figure 7 As shown, the first radiation portion 210 is connected to the first pad 310 on the circuit board 300 , the second radiation portion 220 is connected to the second pad 320 on the circuit board 300 , and the connection portion 230 is connected to the third pad 330 on the circuit board 300 .

[0131] That is, the first radiation portion 210 is electrically connected to the circuit board 300 through the first pad 310 , the second radiation portion 220 is electrically connected to the circuit board 300 through the second pad 320 , and the connection portion 230 is electrically connected to the circuit board 300 through the third pad 330 .

[0132] Exemplarily, the first pad 310 and the second pad 320 are used for grounding, and the third pad 330 is used for transmitting a feeding signal.

[0133] That is, the first pad 310 and the second pad 320 are connected to the ground terminal of the circuit board 300 , and the third pad 330 is connected to the signal terminal of the circuit board 300 .

[0134] Exemplarily, the coplanarity of the first pad 310 , the second pad 320 , and the third pad 330 is less than 0.1 mm.

[0135] In this way, the reliability of the SMT process can be improved.

[0136] Exemplarily, the distance between the edge of the power divider 110 and the edge of the circuit board 300 is greater than 10 mm. For example, it can be 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm or 20 mm, etc. This embodiment of the application does not limit this, and it can be reasonably set according to actual conditions.

[0137] The above distance may be understood as the distance between the edge of the power divider 110 and the edge of the circuit board 300 closest to the edge thereof.

[0138] For example, Figure 8 As shown, along the first direction x, the distance s1 between the edge of the power divider 110 close to the first radiation portion 210 and the edge of the circuit board 300 close to the first radiation portion 210 is greater than 10 mm. Along the first direction x, the distance s2 between the edge of the power divider 110 close to the second radiation portion 220 and the edge of the circuit board 300 close to the second radiation portion 220 is greater than 10 mm. Along the third direction z, the distance s3 between one side of the power divider 110 and the circuit board 300 is greater than 10 mm, and the distance s4 between the other side of the power divider 110 and the circuit board 300 is greater than 10 mm.

[0139] In other words, the edge of the power divider 110 is retracted relative to the edge of the circuit board 300 , and the retracted dimension is greater than 10 mm.

[0140] In this way, the circuit board 300 reflects electromagnetic waves, so that the downtilt angle coverage of the dual-beam gain is larger when the antenna structure 100 is ceiling mounted.

[0141] The embodiment of the present application can change the operating frequency band of the antenna structure 100 by changing the size of the antenna structure 100. For example, the operating frequency band of the antenna structure 100 can be changed by changing the size of the power divider 110 in the first direction x, the size of the power divider 110 in the third direction z, and the size of the first radiating portion 210 or the second radiating portion 220 in the second direction y.

[0142] The embodiment of the present application does not limit the working frequency band of the antenna structure 100. Exemplarily, the working frequency band of the antenna structure 100 may be a 5G frequency band.

[0143] The working principle of the antenna structure 100 provided in the embodiment of the present application is briefly introduced below. Fig. 9 As shown, the distance between the first radiating portion 210 and the second radiating portion 220 is the size L1 of the power divider 110 in the first direction x. In other words, the distance L2 between the first radiating portion 210 and the second radiating portion 220 is 0.5λ to 0.8λ. The antenna structure 100 provided in the embodiment of the present application is fed through the connecting portion 230 connected to the power divider 110.

[0144] like Fig. 9 As shown, along the first direction x, the electromagnetic waves radiated by the first radiating portion 210 and the electromagnetic waves radiated by the second radiating portion 220 are offset in anti-phase, the beam gain is reduced, and a beam zero point is formed. On the plane formed by the second direction y and the third direction z, that is, on the mid-perpendicular plane of the power divider 110, the electromagnetic waves radiated by the first radiating portion 210 and the second radiating portion 220 are superimposed in phase, and the beam gain increases after superposition, and finally a gain with dual-beam antenna characteristics is achieved.

[0145] As shown in Table 1, by testing the antenna structure 100 provided in the embodiment of the present application, the corresponding relationship between the operating frequency of the antenna structure 100, the radiation efficiency of the antenna structure 100 and the maximum gain of the antenna structure 100 is obtained, wherein the test efficiency includes 1dB cable loss.

[0146] Table 1

[0147] Operating frequency (MHz) Radiation efficiency Maximum gain (dB) 5000 -1.96796 5.9762 5100 -1.95402 5.46271 5200 -2.0773 4.67263 5300 -2.10683 5.38952 5400 -2.08798 5.33776 5500 -2.30097 4.54279 5600 -2.09728 5.11625 5700 -2.09189 5.26311 5800 -2.66524 4.81233 5900 -2.76691 4.23399

[0148] Among them, the antenna structure 100 provided in the embodiment of the present application has an antenna efficiency greater than 70%, and a more obvious dual-beam directional pattern feature.

[0149] Fig. 10A The simulation diagram of the radiation intensity of the antenna structure 100 provided in the embodiment of the present application when the operating frequency is 5.2G is shown. Fig. 10B The simulation diagram of the radiation intensity of the antenna structure 100 provided in the embodiment of the present application when the operating frequency is 5.5G is shown. Fig. 10C The figure shows the radiation intensity simulation of the antenna structure 100 provided in the embodiment of the present application when the operating frequency is 5.8G. Figure 10A-10C It can be seen that the dual-beam feature of the antenna structure 100 provided in the embodiment of the present application is more obvious.

[0150] Fig.11 is the antenna radiation pattern. Fig.11The solid line in the middle indicates the antenna radiation direction of the antenna structure 100 provided in the embodiment of the present application, and the dotted line indicates the antenna radiation direction of the omnidirectional antenna. Fig.11 It can be seen that, compared with an omnidirectional antenna, the antenna structure 100 provided in the embodiment of the present application has an increased antenna radiation gain in the directions of 90° and 270°, and a decreased antenna radiation gain in the directions of 0° and 180°.

[0151] The antenna structure 100 provided in the embodiment of the present application includes a power divider 110 extending along a first direction x, an input terminal 410 disposed on the power divider 110, and a first radiating portion 210 and a second radiating portion 220 located on opposite sides of the power divider 110. The input terminal 410 is located between the first radiating portion 210 and the second radiating portion 220. The first radiating portion 210 and the second radiating portion 220 are located on the same side of the power divider 110 along the thickness direction (second direction y) of the power divider 110. In the antenna structure 100 provided in the embodiment of the present application, an electrical signal is transmitted to the power divider 110 through the input terminal 410, and is output by the first radiating portion 210 and the second radiating portion 220. The radiation gains of the first radiating portion 210 and the second radiating portion 220 in the first direction x suppress each other, cancel each other in the opposite direction, and form a zero point. The radiation gains of the first radiating portion 210 and the second radiating portion 220 in the direction perpendicular to the first direction x (the second direction y and the third direction z) are superimposed on each other and enhanced in the same direction. This makes the radiation gain of the antenna structure 100 in the first direction x smaller, and the radiation gain in the direction perpendicular to the first direction x larger. In addition, in the solution of the embodiment of the present application, the plane where the power divider 110 is located (the plane composed of the first direction x and the third direction z) intersects with the plane where the first radiating part 210 and the second radiating part 220 are located (the plane composed of the second direction y and the third direction z), so that the radiation gain can also be superimposed on the plane perpendicular to the power divider (the plane composed of the second direction y and the third direction z). Therefore, deploying the antenna structure 100 provided in the embodiment of the present application in the corridor can improve the signal coverage in the room, while reducing the interference between APs along the corridor direction, thereby improving the concurrent performance effect under AP networking.

[0152] The antenna structure 100 provided in the embodiment of the present application has a simple installation process, simple assembly, low assembly complexity, low cost, and can be applied to the SMT process.

[0153] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An antenna structure, It is characterized in that include: A power divider extending along a first direction; A first radiating portion and a second radiating portion are respectively located on two opposite sides of the power divider along the first direction, and are located on the same side of the power divider along the thickness direction of the power divider; The input end is arranged on the power divider and located between the first radiating portion and the second radiating portion.

2. The antenna structure according to claim 1, It is characterized in that The first radiating portion and the second radiating portion both extend along a thickness direction of the power divider; and the thickness direction of the power divider intersects with a plane where the power divider is located.

3. The antenna structure according to claim 1 or 2, It is characterized in that The antenna structure also includes a connecting portion; the connecting portion is arranged between the first radiating portion and the second radiating portion and connected to the input end; the connecting portion and the first radiating portion are located on the same side of the power divider along the thickness direction of the power divider.

4. The antenna structure according to claim 3, It is characterized in that The first radiating portion and the second radiating portion are symmetrically arranged about the connecting portion.

5. The antenna structure according to claim 3 or 4, It is characterized in that Along the thickness direction of the power divider, the difference between any two of the distance between the surface of the first radiating portion away from the power divider and the plane where the power divider is located, the distance between the surface of the second radiating portion away from the power divider and the plane where the power divider is located, and the distance between the surface of the connecting portion away from the power divider and the plane where the power divider is located is less than 0.1 mm.

6. The antenna structure according to any one of claims 1 to 5, It is characterized in that Along the thickness direction of the power divider, the distance between the surface of the first radiating portion away from the power divider and the plane where the power divider is located and the distance between the surface of the first radiating portion away from the power divider and the plane where the power divider is located are both less than 8 mm.

7. The antenna structure according to any one of claims 1 to 6, It is characterized in that Along the third direction, the maximum size of the power divider is greater than 1 mm; the third direction intersects with the first direction, and a plane formed by the third direction and the first direction is parallel to the plane where the power divider is located.

8. The antenna structure according to claim 7, It is characterized in that Along the direction from the input end to the first radiating portion, the size of the power divider in the third direction increases; and / or, Along the direction from the input end to the second radiating portion, the size of the power divider in the third direction increases.

9. The antenna structure according to any one of claims 1 to 8, It is characterized in that Along the first direction, the size of the power divider is 0.5λ to 0.8λ, wherein λ is the wavelength corresponding to the operating frequency of the antenna structure.

10. The antenna structure according to any one of claims 1 to 9, It is characterized in that The power divider, the first radiating portion, and the second radiating portion are integrally formed.

11. The antenna structure according to any one of claims 1 to 10, It is characterized in that The antenna structure further includes a circuit board and a connecting portion; the connecting portion is disposed between the first radiating portion and the second radiating portion, and is connected to the input end of the power divider; the connecting portion and the first radiating portion are located on the same side of the power divider along the thickness direction of the power divider; The first radiating portion is electrically connected to a first pad on the circuit board, the second radiating portion is electrically connected to a second pad on the circuit board, and the connecting portion is electrically connected to a third pad on the circuit board.

12. The antenna structure according to claim 11, It is characterized in that The first pad and the second pad are used for grounding, and the third pad is used for transmitting a feeding signal.

13. The antenna structure according to claim 11 or 12, It is characterized in that The distance between the edge of the power divider and the edge of the circuit board is greater than 10 mm.

14. The antenna structure according to any one of claims 1 to 13, It is characterized in that The first radiating portion and the second radiating portion each include a monopole radiator.

15. An electronic device, It is characterized in that It comprises the antenna structure and a shell as described in any one of claims 1 to 14; the antenna structure is located inside the shell.

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