Antenna device and electronic equipment

Abstract

The invention provides an antenna device and electronic equipment, and the antenna device comprises a substrate and an antenna radiation unit, and the antenna radiation unit is disposed on the substrate. The feed part is electrically connected with the feed-in point of the substrate; the grounding piece is electrically connected with the grounding point of the substrate; the antenna radiation part is electrically connected with the feed part and the grounding part, and the antenna radiation part is provided with a top part and a plurality of side parts which are sequentially connected end to end; one side part of the antenna radiation part is provided with a first resonance adjusting part, and at least part of the first resonance adjusting part is exposed to the electronic equipment. According to the invention, introduction of more different current modes is facilitated, so that the electromagnetic field distribution is more diversified, and the performance of covering multiple frequency bands at the same time is improved to the greatest extent.

Description

Technical Field

[0001] The present application relates to the technical field of antenna devices, and particularly to an antenna device and an electronic device. Background Art

[0002] With the development of communication technologies, there are more and more wireless mobile devices, especially mobile phones. People not only satisfy the simple call function, but more pursue the miniaturization and communication quality of mobile communication devices such as mobile phones. Among them, the antenna device, as an important component of communication quality, has also received increasing attention in its development.

[0003] Taking a mobile phone as an example, the antenna device is embedded in the mobile phone and includes a grounding member and a feeding member electrically connected to the grounding member. In related technologies, the antenna device generally has a radiation area. When the antenna works, the signal enters the antenna through the feeding member, and a current distribution will be excited in the radiation area. The antenna radiates the electromagnetic energy carried by the current in the form of electromagnetic waves through the radiation area to achieve signal transmission (for a transmitting antenna); when receiving, the external electromagnetic wave induces a current signal in the radiation area and is transmitted to the subsequent circuit for processing through the feeding member (for a receiving antenna).

[0004] However, the antenna devices in related technologies cannot cover multiple frequency bands well. Summary of the Invention

[0005] The embodiments of the present application provide an antenna device and an electronic device. By arranging the first resonance adjustment part on the side, it helps to introduce more different current modes, making the electromagnetic field distribution more diverse and maximizing the performance of simultaneously covering multiple frequency bands.

[0006] In a first aspect of the embodiments of the present application, an antenna device is provided, which is located in an electronic device. The antenna device includes a substrate and an antenna radiation unit. The antenna radiation unit is arranged on the substrate, and the antenna radiation unit includes:

[0007] A feeding member electrically connected to the feeding point of the substrate;

[0008] A grounding member electrically connected to the grounding point of the substrate;

[0009] An antenna radiator electrically connected to the feeding member and the grounding member respectively. The antenna radiator has a top and a plurality of side parts connected end to end in sequence; a first resonance adjustment part is arranged on one of the side parts of the antenna radiator, and at least part of the first resonance adjustment part is exposed to the electronic device.

[0010] In one embodiment, the antenna radiator includes at least a first side part and a second side part;

[0011] Wherein, along a first direction, the first side portion and the second side portion are opposite to each other, and at least a part of the first side portion is exposed to the electronic device;

[0012] The first resonance adjustment portion is located on the first side portion, and both the feeding member and the grounding member are located on the second side portion.

[0013] In one embodiment, the antenna radiator further includes a third side portion and a fourth side portion;

[0014] Wherein, along a second direction, the third side portion and the fourth side portion are opposite to each other, and the first resonance adjustment portion extends from the third side portion towards the fourth side portion;

[0015] The second direction intersects with the first direction.

[0016] In one embodiment, the antenna radiator includes a side radiation portion, and the number of the first resonance adjustment portions includes a plurality of them, which are arranged at intervals on the side radiation portion to divide the side radiation portion into a plurality of sub-radiation segments arranged at intervals along a third direction and to divide the side radiation portion into a plurality of sub-radiation segments arranged at intervals along the second direction;

[0017] The third direction intersects with the first direction and the second direction respectively.

[0018] In one embodiment, the side radiation portion includes a first sub-radiation segment, a second sub-radiation segment and a third sub-radiation segment arranged in sequence along the third direction, and the second sub-radiation segment is located between the first sub-radiation segment and the third sub-radiation segment;

[0019] The side radiation portion further includes a fourth sub-radiation segment and a fifth sub-radiation segment arranged at intervals along the second direction, and the fourth sub-radiation segment and the fifth sub-radiation segment connect opposite ends of the third sub-radiation segment and extend in a direction away from the substrate.

[0020] In one embodiment, the side radiation portion further includes a sixth sub-radiation segment and a seventh sub-radiation segment, the sixth sub-radiation segment is located on the third side portion, and the seventh sub-radiation segment is located on the fourth side portion;

[0021] Wherein, the sixth sub-radiation segment and / or the seventh sub-radiation segment is / are connected to the substrate.

[0022] In one embodiment, the antenna radiator includes a top radiation portion, one end of the top radiation portion is connected to the side radiation portion, the other end of the top radiation portion extends from the first side portion to the third side portion, and the feeding member and the grounding member are connected to the other end of the top radiation portion at intervals;

[0023] Wherein, a plurality of second resonance adjustment parts are arranged on the top radiation part to divide the top radiation part into a plurality of top radiation segments arranged at intervals along a second direction.

[0024] In one embodiment, the first resonance adjustment part has a first length extending along the second direction, and the second sub-radiation segment has a second length extending along the second direction, wherein the ratio range of the first length to the second length is between 0.55 and 0.6.

[0025] In one embodiment, the number of the first resonance adjustment parts includes two. There is a first distance H1 between one of the first resonance adjustment parts and the bottom of the antenna radiator, and the distance from the top to the bottom of the antenna radiator is H. The ratio of the first distance H1 to H is between 0.7 and 0.75.

[0026] In one embodiment, there is a second distance H2 between the other first resonance adjustment part and the bottom of the antenna radiator, and the ratio of the second distance H2 to H is between 0.41 and 0.46.

[0027] In one embodiment, the number of the first resonance adjustment parts includes two. The width of one of the first resonance adjustment parts is between 0.7 and 0.9 mm, and the width of the other first resonance adjustment part is between 0.8 and 1 mm.

[0028] In one embodiment, the antenna radiator is formed by bending a metal plate; or, the antenna radiator is formed by an etching process.

[0029] In one embodiment, the first resonance adjustment part includes a first gap opened on the side of the antenna radiator, and the first gap extends along the second direction Y.

[0030] In a second aspect of the embodiments of the present application, an electronic device is provided, including a housing and an antenna device, and at least part of the antenna device is exposed to the housing.

[0031] The antenna device and electronic device provided by the embodiments of the present application include an antenna radiator, and a first resonance adjustment portion is provided on the antenna radiator, and the first resonance adjustment portion is located on the side portion close to the signal port. In this way, compared with setting the first resonance adjustment portion on the top of the antenna radiator, on the one hand, a gap is provided on the side portion, and the flow of current on the side portion is blocked by the gap. This change will cause changes in the equivalent inductance and capacitance values of the antenna, and signals of different frequency bands correspond to different inductance and capacitance resonance conditions. Compared with setting a gap on the top, the changes in equivalent inductance and capacitance generated by setting a gap on the side portion are more conducive to achieving multiple different resonance frequencies, thereby covering more frequency bands. On the other hand, setting a gap on the side portion can introduce more different current modes, and each current mode corresponds to different radiation characteristics and operating frequency bands, while it is difficult to excite multiple different modes by setting a gap on the top, which limits the frequency band coverage range. On the third hand, setting a gap on the side portion will cause a more complex electromagnetic field distribution of the antenna, and this change can make the antenna meet the radiation conditions in different frequency bands, while setting a gap on the top cannot generate a diverse electromagnetic field distribution well, which limits the frequency band coverage ability. Therefore, the present application can maximize the performance of simultaneously covering multiple frequency bands. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or exemplary embodiments, the following will briefly introduce the drawings required for use in the description of the embodiments or exemplary embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 is a schematic structural diagram of the antenna device provided by the embodiments of the present application;

[0034] Figure 2 is a front structural diagram of the antenna device provided by the embodiments of the present application;

[0035] Figure 3 is a back structural diagram of the antenna device provided by the embodiments of the present application;

[0036] Figure 4 is a schematic structural diagram of the antenna radiation unit of the antenna device provided by the embodiments of the present application;

[0037] Figure 5 is another schematic structural diagram of the antenna device provided by the embodiments of the present application.

[0038] REFERENCE NUMERALS:

[0039] 100, substrate;

[0040] 200, Antenna radiation unit; 210, Feeding component; 220, Grounding component; 230, Antenna radiating component; 231, First side portion; 232, Second side portion; 233, Third side portion; 234, Fourth side portion; 235, Side radiation portion; 2351, First sub-radiating segment; 2352, Second sub-radiating segment; 2353, Third sub-radiating segment; 2354, Fourth sub-radiating segment; 2355, Fifth sub-radiating segment; 2356, Sixth sub-radiating segment; 2357, Seventh sub-radiating segment; 2358, First resonance adjustment portion; 236, Top radiation portion; 2361, Second resonance adjustment portion; 2362, Top radiation segment; 237, First gap

[0041] 300, Fixed pad Detailed implementation manners

[0042] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below

[0043] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application

[0044] In addition, if terms such as "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if the term "plural" appears, the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically defined

[0045] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0046] In the related art, a gap is provided on the antenna device, and the gap divides the antenna device into multiple radiation regions. Among them, the existence of the gap will change the equivalent inductance and capacitance values of the antenna. The resonant frequency of the antenna is related to the equivalent inductance and capacitance. By reasonably setting the position, size and shape of the gap, the equivalent inductance and capacitance of the antenna can be adjusted, so that the resonant frequency of the antenna meets the requirements of a specific operating frequency band. For example, in some antennas that require multi-band operation, different resonant frequencies for different frequency bands are achieved by setting multiple different gaps.

[0047] However, the gaps in the related art are generally opened at the top of the antenna device. Since the top is usually at the end position of the overall structure of the antenna and the connection with other parts is relatively simple, the ability to adjust the overall electromagnetic characteristics of the antenna after setting the gap is limited, and it is difficult to achieve comprehensive optimization in multiple frequency bands and cannot cover multiple frequency bands well.

[0048] To solve the above problems, the embodiments of the present application provide an antenna device and an electronic device. By setting the first resonance adjustment part on the side, it is helpful to introduce more different current modes, making the electromagnetic field distribution more diverse and maximizing the performance of simultaneously covering multiple frequency bands.

[0049] The following will be combined with Figures 1 to 5 to illustrate the specific structures of the antenna device and the electronic device provided by the embodiments of the present application.

[0050] The embodiments of the present application provide an electronic device, which includes a housing, and at least part of the antenna device is exposed to the housing. In this way, the antenna can interact more directly with the external electromagnetic field, thereby enhancing the signal reception and transmission capabilities, improving the communication quality of the electronic device, and also being beneficial to the heat dissipation inside the electronic device.

[0051] Exemplarily, the electronic device can be a mobile phone, a laptop computer, a tablet computer, etc. This embodiment does not limit this.

[0052] Referring to Figures 1 to 3 As shown, this embodiment provides an antenna device installed in an electronic device. The antenna device includes a substrate 100 and an antenna radiation unit 200, and the antenna radiation unit 200 is disposed on the substrate 100.

[0053] Referring to Figure 3 As shown, the antenna radiation unit 200 includes a feeding member 210, a grounding member 220, and an antenna radiation member 230. The feeding member 210 is electrically connected to the feeding point of the substrate 100, the grounding member 220 is electrically connected to the grounding point of the substrate 100, and the antenna radiation member 230 is electrically connected to the feeding member 210 and the grounding member 220 respectively.

[0054] Among them, the working principle of the antenna device is as follows: when the feeding member 210 introduces a radio frequency signal into the antenna radiation member 230, a current distribution will be generated on the antenna radiation member 230. According to Maxwell's equations, a changing current will generate a changing magnetic field, and a changing magnetic field will generate a changing electric field, so that electromagnetic waves will be formed in the space around the antenna and radiated outward. The grounding member 220 plays a role of a reference potential here, providing a loop for the current on the antenna radiation member 230, enabling the current to continuously flow in the antenna radiation member 230.

[0055] Referring to Figure 1 and Figure 2 As shown, the antenna radiation member 230 has a top and a plurality of side portions connected end to end in sequence; a first resonance adjustment portion 2358 is provided on the antenna radiation member 230, and at least a part of the first resonance adjustment portion 2358 is exposed to the electronic device.

[0056] Exemplarily, the antenna radiation member 230 is a three-dimensional structure. For example, it can be a cuboid, a prism, or other three-dimensional structures, and this embodiment does not limit this.

[0057] Exemplarily, the first resonance adjustment portion 2358 includes a first gap 237 opened on the side portion of the antenna radiation member 230, and the first gap 237 extends along the second direction Y. It should be noted that the gap refers to a narrow space formed by removing a part of the material from the side portion of the antenna radiation member 230. By changing the size, shape, and position of the first gap 237, the resonance frequency of the antenna can be adjusted.

[0058] Among them, the first resonance adjustment portion 2358 is exposed to the electronic device. Setting the adjustment portion at this position can more directly change the electrical characteristics of the antenna. For example, when the antenna needs to work in different frequency bands, the resonance frequency of the antenna can be changed accordingly by adjusting the size of the first resonance adjustment portion 2358 (such as changing the length, width, etc. of the slot), so as to meet the working requirements of different frequency bands and achieve multi-band operation.

[0059] Among them, the first resonance adjustment part 2358 is arranged on the side. Compared with being arranged on the top, the top is usually at the end position of the overall antenna structure. The parts directly connected to the top are mainly the adjacent sides. Different from positions such as the side or middle of the antenna, there may be complex connections and interactions with the feeding member 210, the grounding member 220, and many other parts. For example, the side often needs to be electrically connected to the feeding structure and the relationship with the grounding structure also needs to be considered. Such multi-faceted connections make the coupling relationship on the side more complex.

[0060] In addition, since the current distribution on the top is relatively concentrated and single, and the electromagnetic field distribution is relatively single, after setting the gap, the excited electromagnetic field modes are also relatively limited, and it can often only act on the resonance of a certain specific frequency band, and it is difficult to achieve effective resonance on multiple frequency bands.

[0061] Therefore, in this embodiment, when the slot (gap) is arranged on the side, the flow of the current on the side is truncated by the gap, the path changes and is redistributed. This change will cause the equivalent inductance and capacitance values of the antenna to change, and signals of different frequency bands correspond to different inductance and capacitance resonance conditions. Compared with setting the gap on the top, the changes in the equivalent inductance and capacitance generated by setting the gap on the side are more conducive to achieving multiple different resonance frequencies, and thus covering more frequency bands.

[0062] In some embodiments, as shown in Figure 1 the antenna radiating element 230 at least includes a first side 231 and a second side 232; among them, along the first direction X, the first side 231 and the second side 232 are opposite, and the first side 231 is exposed to the electronic device; the first resonance adjustment part 2358 is located on the first side 231, and the feeding member 210 and the grounding member 220 are both located on the second side 232.

[0063] Exemplarily, the first direction X can be the width direction of the antenna radiation unit 200.

[0064] Among them, the first resonance adjustment part 2358 is located on the first side 231, which can more directly and effectively change the electrical parameters of the antenna, such as equivalent inductance and capacitance. By adjusting the shape, size, etc. of the first resonance adjustment part 2358, the resonance frequency of the antenna can be accurately adjusted to better meet the working requirements of a specific frequency band and improve the performance of the antenna in the target frequency band, such as improving the radiation efficiency and gain.

[0065] Among them, the first resonance adjustment part 2358, the feeding part 210, and the grounding part 220 are respectively arranged on opposite sides, reducing the mutual interference between them. The feeding part 210 may generate certain electromagnetic interference when transmitting signals, and the grounding part 220 will also affect the surrounding electromagnetic fields. By arranging the first resonance adjustment part 2358 separately from them, the influence of these interferences on the resonance adjustment effect can be avoided, ensuring that the first resonance adjustment part 2358 can more stably play the role of adjusting the antenna resonance characteristics. At the same time, the interference of the first resonance adjustment part 2358 on the feeding and grounding performance is also reduced, enabling each part to work more independently and improving the stability and reliability of the antenna system.

[0066] In some embodiments, referring to Figure 1 As shown, the antenna radiating element 230 further includes a third side portion 233 and a fourth side portion 234; among them, along the second direction Y, the third side portion 233 and the fourth side portion 234 are opposite, and the first resonance adjustment part 2358 extends from the third side portion 233 towards the fourth side portion 234; the second direction intersects with the first direction.

[0067] Exemplarily, the second direction Y may be the length direction of the antenna radiation unit 200. It should be noted that the length, width, thickness, etc. in this embodiment are only for convenience of description and do not imply any limitation on the size.

[0068] Among them, the first resonance adjustment part 2358 extends from the third side portion 233 towards the fourth side portion 234, increasing the length and adjustable dimension of the adjustment part. Compared with only setting a shorter adjustment part on one side, this extended design can cover a wider frequency adjustment range, making the antenna more adaptable to different working frequency band requirements, which is particularly important for multi-band antenna design.

[0069] Among them, the extending direction of the first resonance adjustment part 2358 intersects with the first direction (the direction in which the first side portion 231 and the second side portion 232 are opposite), which will change the current distribution path on the antenna radiating element 230. The interaction of current distributions in different directions can generate more complex and diverse current patterns, and this complex current pattern helps to optimize the radiation characteristics of the antenna. For example, the shape and angle of the radiation pattern can be adjusted to enhance the radiation intensity in a specific direction or achieve a more uniform radiation distribution.

[0070] In some embodiments, the antenna radiating element 230 may include a side radiation part 235. The number of the first resonance adjustment parts 2358 includes multiple, and they are spaced apart on the side radiation part 235 to divide the side radiation part 235 into multiple sub-radiation segments arranged at intervals along the third direction and to divide the side radiation part 235 into multiple sub-radiation segments arranged at intervals along the second direction; the third direction Z intersects with the first direction and the second direction respectively.

[0071] Exemplarily, the third direction Z may be the height direction of the antenna radiation unit 200.

[0072] Among them, different sub-radiation segments can resonate at different frequency bands. Each sub-radiation segment is equivalent to a small radiation unit, and they each have different electrical characteristics. By reasonably designing the sizes of these sub-radiation segments and the parameters of the first resonance adjustment unit 2358, the antenna can achieve effective resonance and radiation at multiple frequency bands, thereby broadening the frequency band coverage range of the antenna and meeting the requirements of multi-band communication. For example, it supports signal transmission of multiple frequency bands in 5G communication.

[0073] Among them, separating the side radiation part 235 into sub-radiation segments along different directions (the second direction and the third direction) will generate various different current distribution patterns. For example, some sub-radiation segments may generate horizontally polarized radiation, while others may generate vertically polarized radiation, or different combinations of sub-radiation segments can achieve directional radiation at a specific angle, which greatly enhances the diversity of the radiation pattern of the antenna and improves the adaptability of the antenna in different application scenarios.

[0074] In some embodiments, as shown in Figure 4 the side radiation part 235 may include a first sub-radiation segment 2351, a second sub-radiation segment 2352, and a third sub-radiation segment 2353 arranged in sequence along the third direction. The second sub-radiation segment 2352 is located between the first sub-radiation segment 2351 and the third sub-radiation segment 2353; the side radiation part 235 further includes a fourth sub-radiation segment 2354 and a fifth sub-radiation segment 2355 arranged at intervals along the second direction. The fourth sub-radiation segment 2354 and the fifth sub-radiation segment 2355 are connected to opposite ends of the third sub-radiation segment 2353 and extend in a direction away from the substrate 100.

[0075] In this way, the combination of multiple sub-radiation segments can make the antenna resonate at multiple frequency bands, thereby increasing the adaptability of the antenna to different frequency bands. For example, the first sub-radiation segment 2351, the second sub-radiation segment 2352, and the third sub-radiation segment 2353 may resonate at low, medium, and high frequency bands respectively, and the extending structures of the fourth sub-radiation segment 2354 and the fifth sub-radiation segment 2355 may introduce new resonance modes, further expanding the operating frequency band range of the antenna, enabling it to meet the requirements of multi-band communication, such as supporting different mobile communication standards or wireless local area network frequency bands simultaneously.

[0076] Therefore, by reasonably designing the sizes and connection manners of the sub-radiating segments, these sub-radiating segments can be coupled with each other to form a more effective radiation system, thereby enhancing the gain of the antenna. The fourth sub-radiating segment 2354 and the fifth sub-radiating segment 2355 are connected to opposite ends of the third sub-radiating segment 2353 and extend in a direction away from the substrate 100. This structure can enhance the radiation ability of the antenna in the vertical direction and increase the gain of the antenna. A higher gain means that the antenna can transmit and receive signals more effectively, improving the communication distance and quality.

[0077] In some embodiments, as shown in Figure 4 FIG. [not provided], the side radiation portion 235 may further include a sixth sub-radiating segment 2356 and a seventh sub-radiating segment 2357. The sixth sub-radiating segment 2356 is located at the third side portion 233, and the seventh sub-radiating segment 2357 is located at the fourth side portion 234.

[0078] Exemplarily, the sixth sub-radiating segment 2356 and the seventh sub-radiating segment 2357 are connected to the substrate 100. On the one hand, the substrate 100 generally functions as a ground, and such a connection manner can further optimize the grounding effect of the antenna. On the other hand, the sixth sub-radiating segment 2356 and the seventh sub-radiating segment 2357 connected to the substrate 100 can provide additional mechanical support for the antenna radiator 230, enhancing the mechanical stability of the antenna. During the use of the electronic device, the antenna may be subjected to external forces such as vibration and shock. This structural design can reduce the possibility of the antenna being deformed or damaged due to external forces, ensuring that the antenna can work stably for a long time.

[0079] In some embodiments, as shown in Figure 4 FIG. [not provided], the antenna radiator 230 may include a top radiation portion 236. One end of the top radiation portion 236 is connected to the side radiation portion 235, and the other end of the top radiation portion 236 extends from the first side portion 231 to the third side portion 233. The feeding member 210 and the grounding member 220 are spaced apart and connected to the other end of the top radiation portion 236.

[0080] Among them, as shown in Figure 1 and Figure 4 FIG. [not provided], the top radiation portion 236 may be provided with a plurality of second resonance adjustment portions 2361 to divide the top radiation portion 236 into a plurality of top radiation segments 2362 arranged at intervals along the second direction.

[0081] Exemplarily, the second resonance adjustment portion 2361 may be a slotted (gapped) section.

[0082] In this way, designing the multi-segment top radiation segments 2362 and combining them with the side radiation segments on the side can provide a richer adjustment degree of freedom, enabling the antenna to more accurately match different operating frequency bands and meet the requirements of multi-band communication.

[0083] In some embodiments, referring to Figure 2 As shown, the first resonance adjustment part 2358 has a first length L1 extending in the second direction, and the second sub-radiating section 2352 has a second length L2 extending in the second direction. Wherein, the ratio range of the first length to the second length can be between 0.55 and 0.6.

[0084] Exemplarily, the ratio of the first length to the second length can be set to 0.55, 0.56, 0.57, 0.58, 0.59, 0.6 or any value between 0.55 and 0.6 according to actual needs. In this embodiment, mainly taking the ratio of the first length to the side length of the second sub-radiating section 2352 as 0.57 as an example for illustration.

[0085] When the ratio of the first length to the second length is less than 0.55, the first resonance adjustment part 2358 is relatively short, and its ability to change the equivalent inductance and capacitance of the antenna is weakened. It is difficult for the antenna to resonate precisely within the required operating frequency band, which may cause the operating frequency of the antenna to shift from the target frequency band, affecting the signal transmission and reception effects and reducing the communication quality. At the same time, the relatively short first resonance adjustment part 2358 cannot effectively change the current distribution, resulting in a narrow frequency band coverage. The narrow-band antenna cannot meet the requirements of simultaneously supporting multiple communication standards (such as 4G, 5G, etc.), restricting the versatility and applicability of the antenna.

[0086] When the ratio of the first length to the second length is greater than 0.6, the first resonance adjustment part 2358 is relatively long, which will increase the overall size of the antenna. In the trend of modern electronic devices towards miniaturization and integration, an overly large antenna size is not conducive to the design and manufacture of the device. In addition, the relatively long first resonance adjustment part 2358 may introduce additional electromagnetic interference, which may generate unnecessary coupling with other parts of the antenna, resulting in a complex electromagnetic environment of the antenna and affecting the stability and reliability of the antenna.

[0087] Therefore, by limiting the ratio of the first length to the second length to be between 0.55 and 0.6, the first resonance adjustment part 2358 has an appropriate length. This ratio range can not only enable the antenna to generate multiple different resonance modes, achieve a relatively wide frequency band coverage, and meet the requirements of multi-band communication, but also will not make the first resonance adjustment part 2358 grow too much to increase the size and complexity of the antenna. This enables the antenna to better adapt to the design requirements of miniaturization and integration of modern electronic devices while ensuring performance.

[0088] In some embodiments, referring to Figure 2 As shown, there is a first distance H1 between the first resonance adjustment part 2358 and the bottom of the antenna radiator 230, and there is a second distance H between the top and the bottom of the antenna radiator 230. The ratio range of the first distance H1 to H is between 0.7 and 0.75.

[0089] Exemplarily, the ratio of the first distance H1 to H can be set to 0.7, 0.71, 0.72, 0.73, 0.74, 0.75, or any value between 0.7 and 0.75 according to actual needs. In this embodiment, mainly taking H1 as 0.72 as an example for illustration.

[0090] When the ratio of the first distance H1 to H is less than 0.7, it means that the first resonance adjustment part 2358 is relatively close to the bottom of the antenna radiator 230. Among them, since some other components, such as a grounding structure, etc., may usually be arranged at the bottom. When the first resonance adjustment part 2358 is close to the bottom, it is easier to generate electromagnetic coupling with these components, thereby increasing the interference between each other.

[0091] When the ratio of the first distance H1 to H is greater than 0.75, the first resonance adjustment part 2358 is relatively close to the top of the antenna radiator 230. This layout may cause the space at the top of the antenna to be tense, affect the arrangement of other components, does not meet the design requirements of the miniaturization of the electronic device, and increases the volume and weight of the device.

[0092] Therefore, by limiting the ratio of the first distance H1 to H to be between 0.7 and 0.75, the first resonance adjustment part 2358 is in a relatively appropriate position, maintaining an appropriate distance from other components at the bottom of the antenna, reducing the possibility of electromagnetic coupling and mutual interference. This helps to improve the working stability of the first resonance adjustment part 2358, and at the same time can ensure the normal operation of other components, improving the electromagnetic compatibility of the entire antenna system. In addition, the appropriate layout is also beneficial to the integration of the antenna with other circuits inside the electronic device, reducing the difficulty of design and manufacturing.

[0093] In some embodiments, there is a second distance H2 between another first resonance adjustment part 2358 and the bottom of the antenna radiator 230, and the ratio of the second distance H2 to H is between 0.41 and 0.46. Exemplarily, in this embodiment, mainly taking H2 as 0.435 as an example for illustration, in this way, it also ensures that another first resonance adjustment part 2358 is in an appropriate position in the height direction of the antenna.

[0094] In some embodiments, the number of the first resonance adjustment parts 2358 includes two. The width of one of the first resonance adjustment parts 2358 can be between 0.7 and 0.9 mm, and the width of the other first resonance adjustment part 2358 can be between 0.8 and 1 mm. This embodiment does not make a limitation on this, and it can be specifically set according to actual needs.

[0095] In some embodiments, referring to Figures 1 to 4 as shown, the antenna radiator 230 is formed by bending a metal plate; or, referring to Figure 5As shown, the antenna radiating element 230 is formed by an etching process.

[0096] Exemplarily, metal plate bending refers to selecting a metal plate (such as copper, aluminum, etc.) with a certain thickness and electrical conductivity, and according to the design shape and size requirements of the antenna radiating element 230, performing a bending operation on the metal plate through a mold or a special bending device. During the bending process, different parts of the metal plate are bent at a predetermined angle and position, thereby gradually forming the antenna radiating element 230 with specific structures such as a top and sides. This method can more intuitively shape the three-dimensional shape of the antenna radiating element 230, and by precisely controlling the bending angle, number of times, and position, the precise construction of the geometric structure of the antenna radiating element 230 can be achieved.

[0097] Exemplarily, the etching process is to form the antenna radiating element 230 on a substrate 100 material such as a copper clad laminate (an insulating board with a copper foil layer on the surface) through a series of process steps such as photolithography, development, and etching.

[0098] In some embodiments, a fixed pad 300 may be provided on the antenna radiating element 230, and the antenna radiating element 230 is connected to the substrate 100 through the fixed pad 300, thereby improving the assembly stability and structural strength between the antenna radiation unit 200 and the substrate 100.

[0099] The embodiments of the present application provide an antenna device and an electronic device. By arranging the first resonance adjustment part on the side, more different current modes will be introduced, making the electromagnetic field distribution more diverse, and maximizing the performance of simultaneously covering multiple frequency bands.

[0100] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0101] The above embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An antenna device, characterized in that: Located in an electronic device, the antenna device comprises a substrate (100) and an antenna radiation unit (200), wherein the antenna radiation unit (200) is arranged on the substrate (100), and the antenna radiation unit (200) comprises: A feeding element (210) electrically connected to a feeding point of the substrate (100); A grounding member (220) electrically connected to a grounding point of the substrate (100); The antenna radiator (230) is electrically connected to the feeding element (210) and the grounding element (220), respectively, and the antenna radiator (230) has a top and a plurality of side portions connected end to end in sequence; one of the side portions of the antenna radiator (230) is provided with a first resonance adjustment portion (2358), and at least a portion of the first resonance adjustment portion (2358) is exposed to the electronic device.

2. The antenna device according to claim 1, characterized in that The antenna radiator (230) comprises at least a first side portion (231) and a second side portion (232); Wherein, along a first direction X, the first side portion (231) and the second side portion (232) are opposite to each other, and at least a portion of the first side portion (231) is exposed to the electronic device; The first resonance adjustment portion (2358) is located on the first side portion (231), and the feeding element (210) and the grounding element (220) are both located on the second side portion (232).

3. The antenna device according to claim 2, characterized in that The antenna radiator (230) further includes a third side portion (233) and a fourth side portion (234); Wherein, along the second direction Y, the third side portion (233) and the fourth side portion (234) are opposite to each other, and the first resonance adjustment portion (2358) extends from the third side portion (233) in the direction of the fourth side portion (234); The second direction Y intersects with the first direction X.

4. The antenna device according to claim 3, characterized in that: The antenna radiating element (230) comprises a side radiating portion (235); the first resonance adjustment portion (2358) comprises a plurality of portions, and the side radiating portion (235) is divided into a plurality of sub-radiating segments arranged at intervals along a third direction Z, and a plurality of sub-radiating segments arranged at intervals along a second direction Y; the third direction Z intersects with the first direction X and the second direction Y respectively.

5. The antenna device according to claim 4, characterized in that: The side radiation portion (235) comprises a first sub-radiation segment (2351), a second sub-radiation segment (2352), and a third sub-radiation segment (2353) arranged in sequence along the third direction, the second sub-radiation segment (2352) being located between the first sub-radiation segment (2351) and the third sub-radiation segment (2353); The side radiation portion (235) further comprises a fourth sub-radiation segment (2354) and a fifth sub-radiation segment (2355) arranged at intervals along the second direction Y, wherein the fourth sub-radiation segment (2354) and the fifth sub-radiation segment (2355) are connected to opposite ends of the third sub-radiation segment (2353) and extend in a direction away from the substrate (100).

6. The antenna device according to claim 5, characterized in that The side radiation portion (235) further comprises a sixth sub-radiation segment (2356) and a seventh sub-radiation segment (2357), wherein the sixth sub-radiation segment (2356) is located at the third side portion (233), and the seventh sub-radiation segment (2357) is located at the fourth side portion (234); Wherein, the sixth sub-radiation segment (2356) and / or the seventh sub-radiation segment (2357) are connected to the substrate (100).

7. The antenna device according to claim 4, characterized in that: The antenna radiating element (230) comprises a top radiating portion (236), one end of the top radiating portion (236) is connected to the side radiating portion (235), the other end of the top radiating portion (236) extends from the first side portion (231) to the third side portion (233), and the feeding element (210) and the grounding element (220) are connected to the other end of the top radiating portion (236) at intervals; Wherein, the top radiation portion (236) is provided with a plurality of second resonance adjustment portions (2361) so as to separate the top radiation portion (236) into a plurality of top radiation segments arranged at intervals along the second direction Y.

8. The antenna device according to claim 5, characterized in that: The first resonance adjustment portion (2358) has a first length L1 extending along the second direction, and the second sub-radiation segment (2352) has a second length L2 extending along the second direction, wherein the ratio of the first length L1 to the second length L2 ranges from 0.55 to 0.

6.

9. The antenna device according to claim 1, characterized in that: The number of the first resonance adjustment parts (2358) includes two, one of which has a first distance H1 from the bottom of the antenna radiator (230), the distance from the top to the bottom of the antenna radiator (230) is H, and the ratio of the first distance H1 to the H is between 0.7-0.

75.

10. The antenna device according to claim 9, characterized in that: There is a second distance H2 between another of the first resonance adjustment parts (2358) and the bottom of the antenna radiation element (230), and the ratio of the second distance H2 to the H is between 0.41 and 0.

46.

11. The antenna device according to claim 1, characterized in that: The number of the first resonance adjustment parts (2358) includes two, wherein the width of one of the first resonance adjustment parts (2358) is between 0.7-0.9 mm, and the width of the other first resonance adjustment part (2358) is between 0.8-1 mm.

12. The antenna device according to claim 1, characterized in that The antenna radiator (230) is formed by bending a metal plate; or, the antenna radiator (230) is formed by an etching process.

13. The antenna device according to claim 1, characterized in that: The first resonance adjustment portion (2358) comprises a first gap (237) opened on the side of the antenna radiation element (230), and the first gap (237) extends along the second direction Y.

14. An electronic device, characterized in that: The invention comprises a housing and the antenna device according to any one of claims 1 to 13, wherein the antenna device is at least partially exposed to the housing.

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