Antenna structure and electronic device

Abstract

The embodiment of the present application provides an antenna structure and an electronic device, which relate to the field of antenna technology and are used to reduce the size of the antenna structure. The antenna structure includes a first substrate and a first radiator and a second radiator that intersect and are electrically connected. The first substrate has a first surface, and the first surface is provided with the first radiator. The second radiator is arranged in the thickness direction of the first substrate.

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 communication technology and electronic equipment, higher requirements are placed on the performance and size of electronic equipment. Due to the limitations of the size of electronic equipment and other internal structures, the size and performance requirements of the antenna structure are high, which requires the size of the antenna structure to be designed to be smaller without changing the operating frequency of the antenna structure. Summary of the invention

[0003] Embodiments of the present application provide an antenna structure and an electronic device, which are used to reduce the size of the antenna structure.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In a first aspect of an embodiment of the present application, an antenna structure is provided, comprising a first substrate and a first radiator and a second radiator intersecting and electrically connected. The first substrate has a first surface, and the first surface is provided with the first radiator. The second radiator is provided in the thickness direction of the first substrate.

[0006] In the antenna structure provided in the embodiment of the present application, the first radiator is equivalent to the radiator of the antenna structure. By providing a second radiator electrically connected to the first radiator, the electrical size of the antenna structure is equivalently extended by utilizing the second radiator, so that the size of the antenna structure can be designed to be smaller without increasing the size of the antenna structure in a direction parallel to the first substrate. In addition, the second radiator is provided in the thickness direction of the first substrate 110, so as not to increase the thickness of the antenna structure. The embodiment of the present application provides a solution that can reduce the size of the antenna structure by half compared to the antenna structure of the same operating frequency in the prior art.

[0007] In a possible implementation, the antenna structure further includes a third radiator, which is disposed on a side of the first substrate away from the first radiator; the third radiator is electrically connected to the first radiator through the second radiator. In this way, the electrical size of the antenna structure can be further increased without increasing the overall size of the antenna structure.

[0008] In a possible implementation, there is a gap between the third radiator and the first substrate. In this way, the antenna structure provided in the embodiment of the present application has multiple implementations.

[0009] In a possible implementation, the first substrate has a second surface disposed opposite to the first surface, and the third radiator is disposed on the second surface of the first substrate. In this way, the antenna structure provided in the embodiment of the present application has multiple implementations.

[0010] In a possible implementation, the antenna structure further includes a connection portion; the connection portion is located on a side of the first radiator away from the first substrate, and the connection portion is electrically connected to both the first radiator and the second radiator. In this way, the antenna structure provided in the embodiment of the present application has multiple implementations.

[0011] In a possible implementation, the antenna structure further includes a third radiator, which is disposed on a side of the first substrate away from the first radiator; the third radiator is electrically connected to the first radiator through the second radiator; the connecting portion, the second radiator and the third radiator are an integrally formed structure. In this way, manual assembly is not required, costs are reduced, and the integration of the antenna structure is improved.

[0012] In a possible implementation, the second radiator is disposed on a surface where the first substrate intersects with the first surface. In this way, the antenna structure provided in the embodiment of the present application has multiple implementations.

[0013] In a possible implementation, the second radiator penetrates the first substrate along the thickness direction of the first substrate. In this way, the antenna structure provided in the embodiment of the present application has multiple implementations.

[0014] In a possible implementation, the second radiator includes a plurality of vias, and the plurality of vias are arranged at intervals in a direction perpendicular to the thickness direction of the first substrate. In this way, the first radiator and the third radiator are connected by using a plurality of vias, which can make the antenna structure simpler and more compact.

[0015] In a possible implementation, the antenna structure further includes a first microstrip strip structure, which is disposed on the first surface of the first substrate, and the first microstrip strip structure is located on a side of the first radiator away from the second radiator. In this way, the first microstrip strip structure is used to couple electromagnetic waves to the first radiator to complete the radiation excitation of the antenna structure. In addition, the first microstrip strip is coupled to the feeding portion, and the operating bandwidth of the antenna structure can be changed by adjusting the size and position of the first microstrip strip.

[0016] In a possible implementation, the antenna structure further includes a second microstrip strip structure, which is disposed on the first surface of the first substrate, and the second microstrip strip structure intersects with the first microstrip strip structure in an extending direction. In this way, a dual-port, frequency-different, dual-polarized antenna structure can be realized.

[0017] In a possible implementation, the antenna further includes a fourth radiator and a fifth radiator; the fourth radiator is arranged in the thickness direction of the first substrate; the fourth radiator intersects with the first radiator and is electrically connected to the first radiator; the fifth radiator is arranged on a side of the first substrate away from the first radiator; the fifth radiator is electrically connected to the first radiator through the fourth radiator. In this way, a dual-port same-frequency dual-polarization antenna structure can be realized.

[0018] In a possible implementation, the antenna structure further includes a second substrate and a feeding unit; the second substrate is disposed on a side of the first substrate away from the first radiator; the feeding unit is disposed between the first substrate and the second substrate and is used to connect the first substrate and the second substrate. In this way, the antenna structure can be fed by the feeding unit without feeding through a cable.

[0019] In a possible implementation, the antenna structure further includes a third radiator, which is disposed on a surface of the second substrate close to the first substrate; the third radiator is electrically connected to the first radiator through the second radiator. In this way, the antenna structure 10 has a compact structure and is easy to manufacture.

[0020] According to a second aspect of the embodiments 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 arranged in the housing.

[0021] 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

[0022] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0023] Figure 2A A schematic diagram illustrating a structure of an antenna structure;

[0024] Figure 2B for Figure 2A A cross-sectional view along direction A1A2;

[0025] Figure 3A A structural schematic diagram illustrating another antenna structure;

[0026] Figure 3B for Figure 3A A cross-sectional view along direction B1B2;

[0027] Figure 4A for Figure 2A A simulation diagram of the scattering parameters of the antenna structure is shown;

[0028] Figure 4B for Figure 3AA simulation diagram of the scattering parameters of the antenna structure is shown;

[0029] Figure 4C for Figure 2A The radiation pattern of the antenna structure is shown;

[0030] Figure 4D for Figure 3A The radiation pattern of the antenna structure is shown;

[0031] Figure 5A A schematic diagram showing another antenna structure;

[0032] Figure 5B A schematic diagram showing another antenna structure;

[0033] Figure 5C A schematic diagram showing another antenna structure;

[0034] Figure 5D A schematic diagram showing another antenna structure;

[0035] Figure 5E A schematic diagram showing another antenna structure;

[0036] Fig. 6A A schematic diagram of an antenna structure provided in an embodiment of the present application;

[0037] Figure 6B A schematic diagram of another antenna structure provided in an embodiment of the present application;

[0038] Figure 7 A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0039] Fig. 8A A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0040] Figure 8B A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0041] Fig.9A A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0042] Fig. 9B A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0043] Fig. 9C A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0044] Fig.10 A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0045] Fig.11 A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0046] Fig.12 A schematic diagram of the structure of another antenna structure provided in an embodiment of the present application;

[0047] Fig.13A A simulation diagram illustrating scattering parameters of an antenna structure;

[0048] Fig. 13B A simulation diagram illustrating scattering parameters of another antenna structure;

[0049] Fig.14A Shows the radiation pattern of another antenna structure;

[0050] Fig. 14B A radiation pattern of another antenna structure is shown;

[0051] Fig. 14C A radiation pattern of another antenna structure is shown;

[0052] Fig.15 A simulation diagram illustrating the scattering parameters of yet another antenna structure.

[0053] Reference numerals

[0054] 1-electronic device; 2-display module; 3-middle frame; 4-housing; 5-cover plate; 10-antenna structure; 101-fence structure; 110-first substrate; 120-second substrate; 130-feeding part; 131-contact; 132-antenna spring; 210-first radiator; 211-connecting part; 230-third radiator; 220-second radiator; 240-fourth radiator; 250-fifth radiator; 212-second connecting part; 310-first microstrip strip structure; 320-second microstrip strip structure. DETAILED DESCRIPTION

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] For ease of understanding, the relevant technical terms involved in the embodiments of the present application are explained and described below.

[0061] Home gateway: It is a network device located inside a modern home. Its function is to connect home users to the Internet, so that various smart devices in the home can get Internet services, or these smart devices can communicate with each other. Simply put, the home gateway is a bridge that enables various smart devices in the home to be connected to the Internet, and from the inside of the home to the external network. From a technical point of view, the home gateway implements bridging / routing, protocol conversion, address management and conversion within the home and from the inside to the outside, assumes the responsibility of a firewall, and provides possible services such as voice over internet protocol (VoIP) or video over internet protocol (Video over IP).

[0062] Electrical length: refers to the ratio of the physical length (i.e. mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave.

[0063] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0064] Optical communication network system has become the mainstream communication network system at present. For example, in the optical communication network system, the access mode of the access network (AN) is fiber access (FTTx), which is also called optical access network (OAN). The fiber access modes of the optical access network include fiber to the cabinet (FTTCab), fiber to the curb (FTTC), fiber to the building (FTTB) and fiber to the room (FTTR).

[0065] In some embodiments, the optical communication network system is integrated into an electronic device. The electronic device may include, for example, a server, a switch, an optical network card, and an optical transceiver. The optical communication network system may be integrated into the same electronic device or may be separately integrated into different electronic devices. This embodiment of the application does not limit this, and may be reasonably set according to actual conditions.

[0066] In other embodiments, an electronic device is also illustrated. The electronic device can be applied to various communication systems or communication protocols, such as: global system of mobile communication (GSM), code division multiple access (CDMA) system, wideband code division multiple access wireless (WCDMA), general packet radio service (GPRS), long term evolution (LTE), etc. The electronic device is, for example, consumer electronic products, home electronic products, vehicle-mounted electronic products, and financial terminal products. Among them, consumer electronic products are such as wireless routers, mobile phones, tablet computers (pads), laptops, e-readers, personal computers (PCs), personal digital assistants (PDAs), desktop displays, smart wearable products (e.g., smart watches, smart bracelets), virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, drones, etc. Home electronic products include smart door locks, televisions, remote controls, refrigerators, rechargeable small household appliances (such as soybean milk machines, sweeping robots), etc. Car-mounted electronic products include car navigation systems, car DVDs, etc. Financial terminal products include ATM machines, self-service terminals, etc. The embodiments of this application do not impose any special restrictions on the specific forms of the above-mentioned electronic devices. For the convenience of explanation, the following embodiments are all illustrated by taking the electronic device as a mobile phone as an example.

[0067] An example of an electronic device structure is shown in FIG. Figure 1 As shown, the electronic device 1 mainly includes a display module 2, a middle frame 3, a housing (or battery cover, rear housing) 4 and a cover plate 5.

[0068] The display module 2 has a light-emitting side from which a display image can be seen and a back side arranged opposite to the light-emitting side. The back side of the display module 2 is close to the middle frame 3 , and the cover plate 5 is arranged on the light-emitting side of the display module 2 .

[0069] The display module 2 includes a display panel (DP).

[0070] In a possible embodiment of the present application, the display module 2 is a liquid crystal display module. In this case, the display screen is a liquid crystal display (LCD). Based on this, the display module 2 also includes a backlight unit (BLU) located on the back of the liquid crystal display (away from the side of the LCD for displaying images).

[0071] The backlight module can provide light source to the liquid crystal display screen, so that each subpixel in the liquid crystal display screen can emit light to realize image display.

[0072] Alternatively, in another possible embodiment of the present application, the display module 2 is an organic light emitting diode display module. In this case, the display screen is an organic light emitting diode (OLED) display screen. Since an electroluminescent layer is provided in each sub-pixel of the OLED display screen, the OLED display screen can be self-luminous after receiving the operating voltage. In this case, the display module 2 having the OLED display screen does not need to be provided with the backlight module.

[0073] The cover plate 5 is located at a side of the display module 2 away from the middle frame 3 . The cover plate 5 may be, for example, a cover glass (CG), and the cover glass may have a certain toughness.

[0074] The middle frame 3 is located between the display module 2 and the housing 4. The surface of the middle frame 3 away from the display module 2 is used to install internal components such as a battery, a printed circuit board (PCB), a camera, and an antenna structure. After the housing 4 and the middle frame 3 are covered, the above internal components are located between the housing 4 and the middle frame 3.

[0075] Illustratively, the antenna structure may be applied to the above-mentioned electronic device 1 to enable the electronic device 1 to receive or send wireless signals to realize a wireless communication function.

[0076] Among them, the patch antenna design without the need for cables has become a type of antenna structure commonly used in electronic devices 1 .

[0077] A patch antenna is shown as Figure 2A As shown, the antenna structure 10 includes a first substrate 110 and a second substrate 120 which are stacked. The second substrate 120 may be a printed circuit board in the electronic device 1. Alternatively, the second substrate 120 may be disposed on a printed circuit board. This embodiment of the application does not limit this.

[0078] For example, Figure 2AAs shown, the first substrate 110 is a square with side length d1, and the area of the first substrate 110 is d1 2 . As Figure 2B shown, the thickness h1 of the antenna structure 10 is the sum of the thickness of the first substrate 110 and the thickness of the second substrate 120.

[0079] Among them, the size d1 of the first substrate 110 is related to the operating frequency of the antenna structure 10. For example, when Figure 2A the operating frequency of the antenna structure 10 shown is 2.4 GHz, the size of the first substrate 110 is about 60 mm, that is, d1 is about 60 mm.

[0080] As the performance of the electronic device 1 continues to improve, there are also certain requirements for the appearance design of the electronic device 1. Exemplarily, the antenna structure of the electronic device 1 in the home gateway (for example, FTTR / WiFi device) has gradually evolved from a single external antenna structure to a multi-external antenna structure, and then to the current internal antenna structure.

[0081] Due to the limitations of the size of the electronic device 1 and other structures within the electronic device 1, certain requirements are imposed on the performance and size of the internal antenna structure, and the design requirements for the internal antenna structure are higher than those for the external antenna structure.

[0082] However, since the size d1 of the first substrate 110 is relatively large, it occupies a relatively large internal space of the electronic device 1, affecting the use of the electronic device 1.

[0083] Based on this, in order to reduce the size of the antenna structure, an embodiment of the present application further illustrates an antenna structure, as Figure 3A shown, the antenna structure 10 includes a first substrate 110, a second substrate 120, and a plurality of fence structures 101. There is a gap between the first substrate 110 and the second substrate 120, and the first substrate 110 and the second substrate 120 are connected by the fence structures 101.

[0084] Among them, as Figure 3B shown, a metal layer covers the surface of the second substrate 120 away from the first substrate 110. The fence structures 101 penetrate through the first substrate 110, and a plurality of fence structures 101 are located on the surface of the second substrate 120 close to the first substrate 110. The fence structures 101 do not penetrate through the second substrate 120. At this time, the fence structures 101 do not form an electrical connection with the metal layer of the second substrate 120, and the formed current distribution equivalently extends the electrical size of the antenna structure 10, reducing the size d2 (d2 < d1) of the antenna structure 10, enabling the antenna structure 10 to achieve resonance at a lower frequency and electromagnetic wave radiation at a smaller size.

[0085] Figure 4A illustrates Figure 2AThe scattering parameters of the antenna structure shown, Figure 4B Indicate Figure 3A The scattering parameters of the antenna structure shown, Figure 4C Indicate Figure 2A The radiation pattern of the antenna structure shown, Figure 4D Indicate Figure 3A The radiation pattern of the antenna structure shown in Figure 1 is given by Figure 4A and Figure 4B It can be seen that Figure 2A The resonant frequency of the antenna structure 10 and Figure 3A The resonance frequencies of the illustrated antenna structures 10 are substantially the same, both being around 2.5 GHz. Figure 2A The radiation direction of the antenna structure 10 and Figure 3A The radiation direction of the illustrated antenna structure 10 is also substantially consistent.

[0086] therefore, Figure 3A The illustrated antenna structure 10 reduces the size of the antenna structure 10 without changing the performance of the antenna structure 10 .

[0087] However, Figure 3A The schematic antenna structure 10 is relatively complex in structure, has a high tolerance, is difficult to assemble, and also increases the thickness of the antenna structure 10 .

[0088] like Figure 3B As shown, the thickness h2 of the antenna structure 10 is the sum of the thickness of the first substrate 110, the thickness of the second substrate 120 and the thickness of the fence structure 101. Figure 3A The thickness of the antenna structure shown is greater than Figure 2A Schematic representation of the thickness of the antenna structure.

[0089] Based on this, in order to reduce the difficulty of the assembly process of the antenna structure, the embodiment of the present application also illustrates an antenna structure, such as Figure 5A As shown, the antenna structure 10 includes a plurality of sub-antenna layers ( Figure 5B-5E sub-antenna layer shown).

[0090] like Figure 5A As shown, the antenna structure 10 includes multiple sub-antenna layers. Metallized vias are used between each sub-antenna layer to adjust current distribution.

[0091] For example, Figure 5A The antenna structure 10 shown includes a first sub-antenna layer 11 (eg, Figure 5B As shown), the second sub-sky layer 12 (as shown Figure 5C As shown), the third sub-sky layer 13 (as shown Figure 5D As shown) and the fourth sub-antenna layer 14 (as shown Figure 5E shown).

[0092] However, the antenna structure 10 has a large number of sub-antenna layers, and each sub-antenna layer is thick, which increases the overall thickness of the antenna structure 10, and places high requirements on the dielectric material in the sub-antenna layer, requiring the use of low dielectric constant materials, resulting in a larger thickness of the antenna structure 10 and a higher cost.

[0093] Based on this, in order to reduce the thickness of the antenna structure, an embodiment of the present application provides an antenna structure. Fig. 6A As shown, the antenna structure 10 includes a first substrate 110, a first radiator 210 and a second radiator 220. The first substrate 110 has a first surface a1, and the first surface a1 is provided with the first radiator 210. The second radiator 220 is provided in the thickness direction of the first substrate 110. The first radiator 210 and the second radiator 220 intersect, and the first radiator 210 and the second radiator 220 are electrically connected.

[0094] In the embodiment of the present application, the second radiator 220 can be used to increase the electrical size of the antenna structure 10, thereby reducing the size of the first radiator 210 of the antenna structure 10. Therefore, by adding the second radiator 220, the area of ​​the first radiator 210 can be reduced without increasing the overall thickness of the antenna structure 10.

[0095] like Fig. 6A The first substrate 110 has a second surface a2 opposite to the first surface a1. That is, along the thickness direction of the first substrate 110, the first substrate 110 has the first surface a1 and the second surface a2 opposite to each other.

[0096] For the sake of convenience, the thickness direction of the first substrate 110 is referred to as the third direction z, and the directions intersecting the third direction z, that is, the two directions of the plane where the first substrate 110 is located, are referred to as the first direction x and the second direction y. In other words, the plane formed by the first direction x and the second direction y is parallel to the plane where the first substrate 110 is located. The first direction x, the second direction and the third direction z intersect each other.

[0097] The first substrate 110 has a first surface a1 and a second surface a2 that are opposite to each other. A first radiator 210 is disposed on the first surface a1 of the first substrate 110. Exemplarily, the first radiator 210 can be regarded as a metal layer on the surface of the first substrate 110.

[0098] The first radiator 210 may be regarded as a radiator of the antenna structure 10 .

[0099] That is to say, the size of the first radiator 210 is the size of the radiator of the antenna structure 10 .

[0100] Regarding the second radiator 220, Fig. 6A As shown, the second radiator 220 is located in the thickness direction of the first substrate 110 .

[0101] The second radiator 220 may be located in a plane formed by the first direction x and the third direction z. Alternatively, the second radiator 220 may also be located in a plane formed by the second direction y and the third direction z. For the sake of convenience, the plane where the second radiator 220 is located is referred to as a plane formed by the first direction x and the third direction z. In other words, the second radiator 220 may extend along the first direction x.

[0102] Exemplarily, the second radiator 220 is located at a surface where the first surface a1 and the second surface a2 of the first substrate 110 intersect. In other words, the second radiator 220 is in direct contact with the first substrate 110 .

[0103] Alternatively, illustratively, a gap may be formed between the second radiator 220 and the first substrate 110 .

[0104] The embodiment of the present application does not limit this, and it can be reasonably configured according to actual conditions, and it is only necessary that the second radiator 220 intersects with the first radiator 210 and is electrically connected.

[0105] Regarding the size of the second radiator 220 , illustratively, along the third direction z, the size of the second radiator 220 may be smaller than the thickness of the first substrate 110 .

[0106] Alternatively, illustratively, along the third direction z, the size of the second radiator 220 may be equal to the thickness of the first substrate 110 .

[0107] Alternatively, illustratively, along the third direction z, the size of the second radiator 220 may be greater than the thickness of the first substrate 110 .

[0108] The embodiments of the present application do not limit this, and it is reasonable according to the actual situation.

[0109] In some embodiments, Figure 6B As shown, the antenna structure 10 further includes a third radiator 230 . The third radiator 230 is disposed on a side of the first substrate 110 away from the connecting portion 211 .

[0110] The third radiator 230 is electrically connected to the first radiator 210 through the second radiator 220 .

[0111] That is, the second radiator 220 connects the first radiator 210 and the third radiator 230. That is, the second radiator 220 intersects both the first radiator 210 and the third radiator 230. That is, the second radiator 220 intersects the first radiator 210 and the third radiator 230.

[0112] At this time, along the third direction z, the size of the second radiator 220 is greater than or equal to the thickness of the first substrate 110 .

[0113] Exemplarily, the third radiator 230 may be disposed on the second surface a2 of the first substrate 110. Alternatively, the third radiator 230 may not be disposed on the second surface a2 of the first substrate 110. In other words, the third radiator 230 may or may not be in contact with the first substrate 110. This embodiment of the present application does not limit this.

[0114] Exemplarily, the third radiator 230 is parallel to the first substrate 110. That is, the first radiator 210, the third radiator 230 and the first substrate 110 are parallel to each other. For example, the first radiator 210 and the third radiator 230 are both in a plane formed by the first direction x and the second direction y.

[0115] Alternatively, illustratively, the plane where the third radiator 230 is located intersects with the first substrate 110 , that is, the third radiator 230 is disposed obliquely relative to the first substrate 110 .

[0116] Exemplarily, along the first direction x, the sizes of the first radiator 210 , the second radiator 220 , and the third radiator 230 may be the same.

[0117] In the embodiment of the present application, the sizes of the first radiator 210 and the third radiator 230 along the second direction y are not limited and can be reasonably set according to actual conditions. For example, along the second direction y, the size of the first radiator 210 is smaller than the size of the third radiator 230. Alternatively, for example, along the second direction y, the size of the first radiator 210 is equal to the size of the third radiator 230. Alternatively, for example, along the second direction y, the size of the first radiator 210 is larger than the size of the third radiator 230.

[0118] In some embodiments, Figure 7 As shown, the antenna structure 10 further includes a connecting portion 211 .

[0119] like Figure 7 As shown, the connection portion 211 is disposed on a side of the first radiator 210 away from the first substrate 110 .

[0120] Exemplarily, the connection portion 211 is disposed on a surface of the first radiator 210 away from the first substrate 110 .

[0121] That is to say, Figure 7 As shown, the connection portion 211 covers the first radiator 210 , that is, the connection portion 211 is in direct contact with the first radiator 210 .

[0122] The connecting portion 211 is electrically connected to the first radiator 210 .

[0123] For example, the material of the connection portion 211 is different from the material of the first radiator 210 .

[0124] Exemplarily, the connecting portion 211 , the third radiator 230 , and the second radiator 220 may be an integrally formed structure.

[0125] In this way, no manual assembly is required, the cost is reduced, and the integration of the antenna structure 100 is improved.

[0126] In some embodiments, Figure 7 As shown, the second radiator 220 is disposed on the surface where the first substrate 110 intersects with the first surface a1.

[0127] For example, Figure 7 As shown, the connecting portion 211 , the third radiator 230 and the second radiator 220 are wrapped around the periphery of the first substrate 110 .

[0128] In other embodiments, Fig. 8A and Figure 8B As shown, the second radiator 220 penetrates the first substrate 110 .

[0129] In this case, the connection portion 211 may not be required.

[0130] like Figure 8B As shown, the second radiator 220 penetrates the first substrate 110 along the thickness direction of the first substrate 110 .

[0131] That is to say, Figure 8B As shown, the second radiator 220 penetrates the first substrate 110 along a direction (ie, a third direction z) from the first surface a1 of the first substrate 110 to the second surface a2 of the first substrate 110 .

[0132] For example, Fig. 8A As shown, the second radiator 220 includes a plurality of via holes 201 , and the plurality of via holes 201 are arranged at intervals along a direction perpendicular to the thickness direction of the first substrate.

[0133] That is, the plurality of vias 201 may be arranged in sequence and at intervals along the first direction x. Alternatively, the plurality of vias 201 may also be arranged in sequence and at intervals along the second direction y. Alternatively, the plurality of vias 201 may be arranged in sequence and at intervals along both the first direction x and the second direction y. The present application embodiment does not limit this, and it is only necessary to ensure that the plurality of vias 201 are all connected to the first radiator 210.

[0134] The antenna structure 10 provided in the embodiment of the present application only needs to form the first radiator 210 and the third radiator 230 on the first surface a1 and the second surface a2 of the first substrate 110, respectively, and then connect the first radiator 210 and the third radiator 230 by using a plurality of vias 201. In this way, the structure of the antenna structure 10 can be made simpler and more compact, and the first radiator 210 and the third radiator 230 can also be excited at the same time.

[0135] In the embodiment of the present application, the dimensions of the first radiator 210 and the connecting portion 211 along the first direction x and along the second direction y are not limited.

[0136] Exemplarily, along the first direction x, the size of the connection portion 211 is smaller than the size of the first radiator 210. Alternatively, exemplary, along the first direction x, the size of the connection portion 211 is equal to the size of the first radiator 210.

[0137] For example, Figure 7 As shown, along the second direction y, the size of the connection portion 211 is smaller than the size of the first radiator 210. Alternatively, illustratively, along the second direction y, the size of the connection portion 211 is equal to the size of the first radiator 210.

[0138] In some embodiments, Fig.9A As shown, there is a gap between the third radiator 230 and the first substrate 110 .

[0139] That is, the third radiator 230 is not in direct contact with the first substrate 110 .

[0140] Exemplarily, a dimension of the second radiator 220 along the thickness direction of the first substrate 110 is greater than the thickness of the first substrate 110 .

[0141] That is, along the third direction z, the size of the second radiator 220 is greater than the size of the first substrate 110 .

[0142] In other words, along the third direction z, the size of the first substrate 110 is smaller than the size of the second radiator 220.

[0143] For example, Fig.9A As shown, along the thickness direction z of the first substrate 110 , the size of the second radiator 220 is greater than the thickness of the first substrate 110 .

[0144] like Fig.9A As shown, the first surface a1 and the second surface a2 of the first substrate 110 are arranged opposite to each other.

[0145] At this time, the second surface a2 of the first substrate 110 opposite to the first surface a1 may also be provided with a metal layer. Alternatively, the second surface a2 may not be provided with a metal layer. This embodiment of the application does not limit this, and it can be reasonably set according to actual conditions.

[0146] In other embodiments, Fig. 9B As shown, the third radiator 230 is disposed on the second surface a2 of the first substrate 110 .

[0147] That is, the third radiator 230 is in direct contact with the first substrate 110 .

[0148] Exemplarily, along the thickness direction z of the first substrate 110 , the size of the second radiator 220 is equal to the thickness of the first substrate 110 .

[0149] At this time, the second surface a2 of the first substrate 110 is not provided with a metal layer.

[0150] In this way, it is possible to avoid the third radiator 230 being electrically connected to the metal layer disposed on the second surface a2 of the first substrate 110 and causing a short circuit.

[0151] Continue to refer Fig.9A In some embodiments, the antenna structure 10 further includes a second substrate 120 and a feeding portion 130 .

[0152] For example, Fig.9A As shown, the second substrate 120 is disposed on a side of the first substrate 110 away from the connecting portion 211 .

[0153] In other words, the second substrate 120 and the first substrate 110 are stacked.

[0154] like Fig.9A As shown, the second substrate 120 includes a first surface b1 and a second surface b2 that are oppositely disposed. The first surface b1 of the second substrate 120 is a surface close to the first substrate 110 , and the second surface b2 of the second substrate 120 is a surface away from the first substrate 110 .

[0155] In some implementations, the second substrate 120 may be considered as a printed circuit board of the electronic device 1. The radiation generated by the antenna structure 10 may be reflected by the second substrate 120 to form a directional antenna.

[0156] For example, Fig.9A As shown, the second substrate 120 may include a first metal layer 121 disposed on the second surface b2.

[0157] like Fig.9AAs shown, the feeding portion 130 is disposed between the first substrate 110 and the second substrate 120 , and the feeding portion 130 is used to connect the first substrate 110 and the second substrate 120 .

[0158] In some embodiments, Fig.9A As shown, the feeding portion 130 includes a contact 131 and an antenna spring 132 . The contact 131 and the antenna spring 132 are electrically connected and used to connect the first substrate 110 and the second substrate 120 .

[0159] Exemplarily, a transmission line (not shown in the figure) is disposed in the second substrate 120 , and a solder pad (not shown in the figure) is disposed on the first surface b1 of the second substrate 120 , wherein the solder pad is electrically connected to the antenna shrapnel 132 .

[0160] In the embodiment of the present application, the signal is transmitted to the antenna spring 132 connected to the pad through the transmission line of the second substrate 120, and then transmitted to the first substrate 110 through the contact 131, completing the signal transmission to the first substrate 110. The antenna structure 10 provided in the embodiment of the present application transmits the signal through the feeding part 130, and there is no need to use a cable to feed the antenna structure 10, thereby reducing the cost.

[0161] In the embodiment of the present application, along the thickness direction (third direction) z of the first substrate 110, the size of the second radiator 220 is less than or equal to the sum of the thickness of the first substrate 110 and the size of the feeding portion 130. That is, the third radiator 230 is disposed between the first substrate 110 and the second substrate 120.

[0162] In some embodiments, along the thickness direction (third direction) z of the first substrate 110 , the size of the second radiator 220 is smaller than the sum of the thickness of the first substrate 110 and the size of the feeding portion 130 .

[0163] That is, along the third direction z, the size of the second radiator 220 is smaller than the sum of the thickness of the first substrate 110 and the distance between the first substrate 110 and the second substrate 120 .

[0164] In other words, the third radiator 230 is not in contact with the second substrate 120 . That is, there is a gap between the third radiator 230 and the second substrate 120 .

[0165] In the implementation of the present application, the distance between the first substrate 110 and the second substrate 120 may be understood as the distance between the second surface a2 of the first substrate 110 and the first surface b1 of the second substrate 120 .

[0166] At this time, illustratively, the first surface b1 of the second substrate 120 may be provided with a metal layer. Alternatively, the first surface b1 of the second substrate 120 may not be provided with a metal layer. This embodiment of the present application does not limit this, and it can be reasonably set according to actual conditions.

[0167] In some other implementations, along the thickness direction (third direction) z of the first substrate 110 , the size of the second radiator 220 is equal to the sum of the thickness of the first substrate 110 and the size of the feeding portion 130 .

[0168] That is, along the third direction z, the size of the second radiator 220 is equal to the sum of the thickness of the first substrate 110 and the distance between the first substrate 110 and the second substrate 120 .

[0169] In other words, the third radiator 230 is in contact with the second substrate 120 . That is, the third radiator 230 is in contact with the first surface b1 of the second substrate 120 .

[0170] For example, Fig. 9C As shown, the third radiator 230 is disposed on a surface of the second substrate 120 close to the first substrate 110 . That is, the third radiator 230 is disposed on the first surface b1 of the second substrate 120 .

[0171] In this case, the third radiator 230 may be a metal layer disposed on the first surface b1 of the second substrate 120 , and the metal layer on the first surface b1 of the second substrate 120 is connected to the first radiator 210 through the second radiator 220 .

[0172] In the embodiment of the present application, the size of the second radiator 220 is not limited. That is, the third radiator 230 can be disposed between the first substrate 110 and the second substrate 120, with a gap between the first substrate 110 and the second substrate 120. Alternatively, the third radiator 230 can also be disposed on the second surface a2 of the first substrate 110, that is, the third radiator 230 is in direct contact with the second substrate 120. Alternatively, the third radiator 230 can also be disposed on the first surface b1 of the second substrate 120, that is, the third radiator 230 is in direct contact with the second substrate 120.

[0173] It is explained here that if the third radiator 230 can be disposed between the first substrate 110 and the second substrate 120, that is, there is a gap between the third radiator 230 and the first substrate 110 and the second substrate 120, a metal layer may be disposed on the second surface a2 of the first substrate 110, or no metal layer may be disposed thereon, and a metal layer may be disposed on the first surface b1 of the second substrate 120, or no metal layer may be disposed thereon. If the third radiator 230 can also be disposed on the second surface a2 of the first substrate 110, that is, the third radiator 230 is in direct contact with the second substrate 120, no metal layer is disposed on the second surface a2 of the first substrate 110. If the third radiator 230 can also be disposed on the first surface b1 of the second substrate 120, that is, the third radiator 230 is in direct contact with the second substrate 120, no metal layer is disposed on the first surface b1 of the second substrate 120.

[0174] That is, the third radiator 230 does not contact the metal layer on the substrate (the first substrate 110 or the second substrate 120 ).

[0175] In some embodiments, Fig.9A As shown, the second surface b2 of the second substrate 120 may be provided with a first metal layer 121. Alternatively, for example, Fig. 9B As shown, the first metal layer may not be provided on the second surface b2 of the second substrate 120. This embodiment of the present application does not limit this, and it can be reasonably provided according to actual conditions.

[0176] The antenna structure 10 provided in the embodiment of the present application can control the resonance point and the operating frequency of the antenna structure 10 by adjusting the size of the third radiator 230 along the second direction y and the size of the second radiator 220 along the third direction z.

[0177] In some embodiments, Fig.10 As shown, the antenna structure 10 further includes a first microstrip structure 310 .

[0178] like Fig.10 As shown, the first microstrip strip structure 310 is disposed on the first surface a1 of the first substrate 110 , and the first microstrip strip structure 310 is disposed opposite to the second radiator 220 .

[0179] That is to say, the first microstrip structure 310 and the second radiator 220 are respectively disposed on two opposite sides of the first substrate 110 .

[0180] The extending direction of the first microstrip structure 310 may be the same as the extending direction of the second radiator 220 .

[0181] In the embodiment of the present application, the first microstrip strip 310 is coupled to the feeding portion 130 , and the operating bandwidth of the antenna structure 10 can be changed by adjusting the size and position of the first microstrip strip 310 .

[0182] The first microstrip structure 310 is used to couple the electromagnetic wave to the first radiator 210 to complete the radiation excitation of the antenna structure 10 .

[0183] In some embodiments, Fig.11 As shown, the antenna structure 10 further includes a second microstrip structure 320 .

[0184] The second microstrip strip structure 320 is disposed on the first surface a1 of the first substrate 110 and intersects with the extending direction of the first microstrip strip structure 310 .

[0185] Exemplarily, the first microstrip strip structure 310 extends along a first direction x, and the second microstrip strip structure 320 extends along a second direction y, wherein the first direction x and the second direction y intersect.

[0186] That is to say, the second radiator 220 , the second microstrip strip structure 320 and the first microstrip strip structure 310 are respectively disposed on three edges of the first substrate 110 .

[0187] In this way, the antenna structure 10 has a first port in the first direction x and a second port in the second direction y, which enables the antenna structure 10 to achieve high-frequency radiation in the second direction y, thereby realizing a dual-port, heterogeneous, dual-polarized antenna structure.

[0188] In some embodiments, Fig.12 As shown, the antenna structure 10 further includes a fourth radiator 240 and a fifth radiator 250 .

[0189] like Fig.12 As shown, the fourth radiator 240 is disposed in the thickness direction of the first substrate 110, and the fourth radiator 240 is disposed opposite to the second microstrip structure 320. The fifth radiator 250 is disposed on the side of the first substrate 110 away from the first radiator 210, and the fifth radiator 250 is connected to the first radiator 210 through the fourth radiator.

[0190] The fourth radiator 240 is disposed at a position similar to that of the second radiator 220 , both of which are disposed in the thickness direction of the first substrate 110 . The difference is that the fourth radiator 240 and the second radiator 220 are disposed on adjacent side walls of the first substrate 110 , respectively.

[0191] For example, the fourth radiator 240 may penetrate the first substrate 110. Alternatively, the fourth radiator 240 may be disposed on a sidewall surface of the first substrate 110 adjacent to the second radiator 220. This embodiment of the present application does not limit this, and it may be reasonably disposed according to actual conditions.

[0192] Exemplarily, the second radiator 220 extends along the first direction x, and the fourth radiator 240 extends along the second direction x. In other words, the extension directions of the second radiator 220 and the fourth radiator 240 intersect.

[0193] In this way, the antenna structure 10 has a first port in the first direction x and a second port in the second direction y, which enables the antenna structure 10 to achieve high-frequency radiation in the second direction y, thereby realizing a dual-port, same-frequency, dual-polarization antenna structure.

[0194] In some embodiments, the antenna structure 10 further includes a second connection portion 212. The second connection portion 212 is disposed on a side of the first radiator 210 away from the first substrate 110. The second connection portion 212 is electrically connected to both the first radiator 210 and the fourth radiator 240.

[0195] At this time, the connection portion 211 for connecting the first radiator 210 and the second radiator 220 is referred to as a first connection portion 211 .

[0196] Exemplarily, the second connection portion 212 may be disposed on a side of the first connection portion 211 away from the first radiator 210 .

[0197] Alternatively, the second connection portion may also be disposed between the first connection portion 211 and the first radiator 210 .

[0198] The embodiments of the present application do not limit this, and can be reasonably set according to actual conditions.

[0199] Exemplarily, the second connection portion 212 , the fourth radiator 240 , and the fifth radiator 250 are an integrally formed structure.

[0200] In this way, the antenna structure 10 is easy to prepare and the process is simple.

[0201] Below Figure 7 The antenna structure 10 shown is simulated, and the size of the first radiator 210 of the first substrate 110 in the antenna structure 10 is set to 30 mm*30 mm, and the thickness remains unchanged at 5 mm.

[0202] Fig.13A for Figure 7 The schematic diagram of the working bandwidth simulation of the antenna structure 10 is shown. Fig. 13B for Figure 7 The antenna efficiency simulation diagram of the antenna structure 10 is shown in FIG. Fig.13A and Fig. 13B It can be seen that, in the embodiment of the present application, the size of the antenna structure 10 is reduced, and the resonant frequency of the antenna structure 10 is substantially unchanged, and is still around 2.5 GHz.

[0203] Figure 14A-Figure 14C The radiation patterns of the antenna structure 10 when the operating frequencies are 2.4 GHz, 2.45 GHz and 2.5 GHz are respectively illustrated. It can be seen that the size of the antenna structure 10 is reduced in the embodiment of the present application, and the radiation direction of the antenna structure 10 remains basically unchanged.

[0204] In the embodiment of the present application, Fig. 8A The antenna structure 10 shown is subjected to simulation. Fig.15 for Fig. 8A The schematic diagram of the working bandwidth simulation of the antenna structure 10 is shown. Fig.13A and Fig.15 It can be seen that the resonant frequency of the antenna structure 10 does not change.

[0205] The antenna structure 10 provided in the embodiment of the present application includes a first substrate 110 and a first radiator 210 and a second radiator 220 that intersect and are electrically connected. The first substrate 110 has a first surface a1, and the first surface a1 is provided with the first radiator 210. The second radiator 220 is arranged in the thickness direction of the first substrate 110. In the antenna structure 10 provided in the embodiment of the present application, the first radiator 210 is equivalent to the radiator of the antenna structure 10. By providing the second radiator 220 electrically connected to the first radiator 210, the electrical size of the antenna structure 10 is extended by the second radiator 220, so that the size of the antenna structure 10 can be designed to be smaller without increasing the size of the antenna structure 10 in the direction parallel to the first substrate 110. In addition, the second radiator 220 is arranged in the thickness direction of the first substrate 110, so that the thickness of the antenna structure 10 can be not increased. The embodiment of the present application provides a solution, which can reduce the size of the antenna structure 10 by one half compared with the antenna structure of the same operating frequency in the prior art.

[0206] In addition, the antenna structure 10 provided in the embodiment of the present application is powered by the feeding unit 130 , without the need for feeding through a cable.

[0207] 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, characterized in that: include: A first substrate, wherein a first radiator is disposed on a first surface of the first substrate; A second radiator is arranged in the thickness direction of the first substrate; The first radiator and the second radiator intersect, and the first radiator and the second radiator are electrically connected; A third radiator is disposed on a side of the first substrate away from the first radiator; the third radiator is electrically connected to the first radiator through the second radiator; and there is a gap between the third radiator and the first substrate; A connecting portion, the connecting portion is located on a side of the first radiator away from the first substrate, the connecting portion is electrically connected to both the first radiator and the second radiator; the connecting portion, the second radiator and the third radiator are an integrally formed structure.

2. The antenna structure according to claim 1, characterized in that: The second radiator is disposed on a surface where the first substrate intersects the first surface.

3. The antenna structure according to claim 1 or 2, characterized in that: The second radiator penetrates the first substrate along a thickness direction of the first substrate.

4. The antenna structure according to claim 3, characterized in that: The second radiator includes a plurality of via holes, and the plurality of via holes are arranged at intervals along a direction perpendicular to a thickness direction of the first substrate.

5. The antenna structure according to claim 1 or 2, characterized in that: The antenna structure further includes a first microstrip strip structure, which is disposed on the first surface of the first substrate and is located on a side of the first radiator away from the second radiator.

6. The antenna structure according to claim 5, characterized in that: The antenna structure further includes a second microstrip strip structure, which is disposed on the first surface of the first substrate, and an extension direction of the second microstrip strip structure intersects with an extension direction of the first microstrip strip structure.

7. The antenna structure according to claim 1 or 2, characterized in that: The antenna further includes a fourth radiator and a fifth radiator; the fourth radiator is arranged in the thickness direction of the first substrate; the fourth radiator intersects with the first radiator and is electrically connected to the first radiator; The first substrate has a second surface opposite to the first surface. The fifth radiator is disposed on one side of the second surface of the first substrate. The fifth radiator is electrically connected to the first radiator through the fourth radiator.

8. The antenna structure according to claim 1 or 2, characterized in that: The antenna structure also includes a second substrate and a feeding portion; The second substrate is disposed on a side of the first substrate away from the first radiator; The feeding portion is disposed between the first substrate and the second substrate and is used to connect the first substrate and the second substrate.

9. The antenna structure according to claim 8, characterized in that: The antenna structure further includes a third radiator, which is disposed on a surface of the second substrate close to the first substrate; the third radiator is electrically connected to the first radiator through the second radiator.

10. An electronic device, characterized in that: It comprises the antenna structure and a shell as described in any one of claims 1 to 9; the antenna structure is arranged in the shell.

Images