Antenna device and intelligent terminal

Abstract

The invention relates to the technical field of antennas, and discloses an antenna device and an intelligent terminal. The antenna device comprises a substrate and an antenna assembly, wherein the antenna assembly is arranged on the substrate; the antenna assembly comprises at least two disturbance structures, each disturbance structure comprises at least two arc-shaped end parts, and the at least two arc-shaped end parts are rotationally and symmetrically arranged. In the antenna device provided by the embodiment of the invention, the antenna assembly is provided with the disturbance structure with the arc-shaped end part, so that not only is the impedance matching performance of the antenna optimized, but also the continuous change of the impedance is realized, and the bandwidth of the antenna is remarkably improved.

Description

Technical Field

[0001] This application relates to the technical field of communication antennas, and particularly to an antenna device and a smart terminal. Background Art

[0002] In the field of wireless communication, as a core component for information transmission, the design and performance of antennas have a significant impact on communication quality. In recent years, with the popularization of mobile devices and the development of satellite communication technology, in order to meet users' higher requirements for data transmission rate and signal quality, antenna technology has gradually developed towards miniaturization and high performance. Especially in terminal satellite communication, the demand for gigabit communication and the increasing streamlining of devices have prompted researchers to continuously explore new antenna design solutions.

[0003] During the conception and implementation of this application, the inventors found at least the following problems: In some solutions, satellite communication antennas usually use elliptical polarization for signal reception. However, this technology usually generates polarization loss during signal transmission, affecting the effective signal reception ability and resulting in a significant decline in communication quality.

[0004] The foregoing description is provided to give general background information and does not necessarily constitute prior art. Summary of the Invention

[0005] This application provides an antenna device and a smart terminal to solve the problem of poor signal quality of satellite communication antennas in the prior art.

[0006] The first aspect of this application provides an antenna device, including:

[0007] A substrate;

[0008] An antenna assembly disposed on the substrate;

[0009] The antenna assembly includes at least two perturbation structures, and each perturbation structure includes at least two arc-shaped ends, and at least two of the arc-shaped ends are rotationally symmetrically arranged.

[0010] Optionally, the perturbation structure further includes at least two connection ends, and the arc-shaped ends are smoothly connected to the connection ends.

[0011] Optionally, the connection ends are arc-shaped edges or straight edges.

[0012] Optionally, the radian of the arc-shaped ends is smaller than that of the connection ends.

[0013] Optionally, the antenna assembly further includes at least two feeding structures, the feeding structures are connected to the perturbation structures and are spaced apart on the perturbation structures, and the feeding structures lead to the perturbation structures.

[0014] Optionally, multiple ones of the feeding structures are evenly distributed about the central axis of the perturbation structure.

[0015] Optionally, the antenna assembly further includes an optimization sheet, which is attached to a side of the antenna assembly away from the substrate, and the optimization sheet is coupled to the antenna assembly.

[0016] Optionally, the optimization sheet is coaxially arranged with the perturbation structure, and the optimization sheet is rotationally symmetric about the central axis of the perturbation structure.

[0017] Optionally, the antenna assembly further includes an omnidirectional loop, which is disposed on a side of the substrate facing the antenna assembly, and the omnidirectional loop surrounds the perturbation structure and is spaced apart from the perturbation structure.

[0018] Optionally, the omnidirectional loop is circular.

[0019] Optionally, the antenna assembly further includes a barrier wall, which is disposed on a side of the substrate facing the antenna assembly, and the barrier wall is disposed on the outer peripheral side of the perturbation structure. Optionally, the thickness of the barrier wall is not less than the thickness of the perturbation structure.

[0020] Optionally, the barrier wall is a regular polygon, or the barrier wall is circular.

[0021] Optionally, the number of the antenna assemblies is at least two groups, and at least two groups of the antenna assemblies are spaced apart or arranged in an array on the substrate.

[0022] Optionally, the number of the antenna assemblies is four groups, and the four groups of the antenna assemblies are respectively disposed at the vertices of a virtual rectangle, and two groups of the antenna assemblies disposed on the long side of the virtual rectangle are spaced apart.

[0023] Optionally, two groups of the antenna assemblies disposed on the short side of the virtual rectangle are attached to each other.

[0024] The second aspect of the present application provides an intelligent terminal, including the antenna device as described in any one of the above.

[0025] In a possible implementation manner, the intelligent terminal further includes a body, and the substrate of the antenna device is detachably connected to the body; or, the substrate of the antenna device is movably connected to the body.

[0026] In the antenna device of this embodiment, by setting a perturbation structure with an arc-shaped end, the antenna not only optimizes the impedance matching performance but also realizes continuous impedance variation, thereby significantly improving the bandwidth of the antenna. This bandwidth characteristic enables the antenna to maintain excellent signal reception ability at different frequencies and polarization modes, reducing the performance attenuation caused by polarization loss.

[0027] In this application, by setting a perturbation structure with an arc-shaped end, the antenna device can achieve circular polarization within a large angular range, effectively suppressing Faraday electromagnetic rotation, enhancing the radiation characteristics of the antenna, and improving the signal reception ability of the antenna device in multiple directions. This setting can reduce the limitations of traditional elliptical polarization antennas in terms of directivity, enabling the antenna device to maintain relatively stable communication quality when the device orientation changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 Shows a schematic structural diagram of a smart terminal in an embodiment of the present invention;

[0030] Figure 2 Shows a perspective view of an antenna device in an embodiment of the present invention;

[0031] Figure 3 Shows a top view of an antenna device in an embodiment of the present invention;

[0032] Figure 4 Shows Figure 3 A cross-sectional view along line A-A in;

[0033] Figure 5 Shows a schematic diagram of the radiation pattern of an antenna device in an embodiment of the present invention;

[0034] Figure 6 Shows a schematic diagram of the radiation pattern of an antenna device in an embodiment of the present invention;

[0035] Figure 7 Shows a schematic diagram of S11 of an antenna device in an embodiment of the present invention;

[0036] Figure 8 Is a schematic hardware structure diagram of a mobile terminal provided by an embodiment of this application.

[0037] The realization of the objectives, functional features, and advantages of this application will be further described with reference to the embodiments and the accompanying drawings. Through the above-mentioned drawings, specific embodiments of this application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of this application in any way, but to explain the concept of this application to those skilled in the art by referring to specific embodiments. Detailed Description of the Embodiments

[0038] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with this application. On the contrary, they are merely examples of devices and methods consistent with some aspects of this application as detailed in the appended claims.

[0039] It should be noted that in this document, the term "including", "comprising", or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or device including that element. Optionally, components, features, and elements with the same name in different embodiments of this application may have the same meaning or different meanings, and their specific meanings need to be determined based on their explanations in the specific embodiments or further in combination with the context of the specific embodiments.

[0040] It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this document, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining". Furthermore, as used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising", "including" indicate the presence of the above-mentioned features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or", "and / or", "including at least one of the following" used in this application may be interpreted inclusively, or mean any one or any combination. For example, "including at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C", and again, "A, B or C" or "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C". An exception to this definition only occurs when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0041] It should be understood that although the steps in the flowcharts in the embodiments of this application are shown sequentially according to the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless there is a clear indication in this document, the execution of these steps has no strict order limit and can be executed in other orders. Moreover, at least a part of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0042] Depending on the context, the words "if", "when" as used herein may be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0043] It should be understood that the specific embodiments described herein are merely for explaining the present application and are not intended to limit the present application.

[0044] In the following description, suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of describing the present application and have no specific meaning in themselves. Therefore, "module", "component", or "unit" can be used interchangeably.

[0045] The intelligent terminal can be implemented in various forms. For example, the intelligent terminal described in the present application can include intelligent terminals such as mobile phones, tablet computers, laptop computers, palmtop computers, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0046] In the field of wireless communication, as the core component of information transmission, the design and performance of the antenna have a non-negligible impact on communication quality. In recent years, with the popularization of mobile devices and the development of satellite communication technology, in order to meet users' higher requirements for data transmission rate and signal quality, antenna technology has gradually developed towards miniaturization and high performance. Especially in mobile phone satellite communication, the demand for gigabit communication and the increasing miniaturization of devices have prompted researchers to continuously explore new antenna design solutions.

[0047] In some solutions, most mobile phone satellite communication antennas usually use elliptical polarization to receive signals. However, this technology usually generates at least 3 dB of polarization loss during signal transmission, affecting the effective signal reception ability. In many actual application scenarios, due to the directivity and polarization characteristics of the elliptical polarization antenna, users often have difficulty ensuring stable communication performance in harsh environments. Once the direction of the device changes significantly, the signal attenuation is significant, resulting in a significant decline in communication quality.

[0048] Based on this, refer to Figures 1 to 7 As shown, an antenna device 10 is provided in an embodiment of the present invention, which includes a substrate 100 and an antenna assembly 200. The substrate 100 serves as an installation carrier for the antenna assembly 200 to carry the antenna assembly 200 and is used to connect to an external device; the antenna assembly 200 is disposed on the substrate 100; the antenna assembly 200 includes at least two perturbation structures 210, and the perturbation structure 210 includes at least two arc-shaped ends 211, and the at least two arc-shaped ends 211 are rotationally symmetrically arranged.

[0049] In the antenna device 10 of this embodiment, by providing a perturbation structure 210 with at least two arcuate ends 211, the antenna not only optimizes the impedance matching performance but also achieves continuous impedance variation, thereby significantly increasing the bandwidth of the antenna. This broadband characteristic enables the antenna to maintain excellent signal reception capabilities at different frequencies and polarization modes, reducing performance degradation caused by polarization loss.

[0050] Optionally, by providing a perturbation structure 210 with at least two arcuate ends 211, the antenna device 10 can achieve circular polarization within a large angular range, effectively suppressing Faraday electromagnetic rotation, thereby enhancing the radiation characteristics of the antenna and improving the signal reception capabilities of the antenna device 10 in multiple directions. This setting can reduce the limitations of traditional elliptical polarization antennas in terms of directivity, enabling the antenna device 10 to maintain relatively stable communication quality even when the device orientation changes.

[0051] Optionally, referring to Figures 2 to 6 As shown, the plane where the X direction and the Y direction in the figure are located is parallel to the substrate 100, and the Z direction is perpendicular to the plane where the X direction and the Y direction are located.

[0052] Referring to Figure 2 and Figure 3 As shown, in one embodiment, the perturbation structure 210 further includes at least two connecting ends 212, and the arcuate ends 211 are smoothly connected to the connecting ends 212.

[0053] In the design of traditional microstrip antennas, due to the presence of edges and corners, irregular electric field variations occur when electromagnetic waves are reflected at the edges, forming spurious radiation. By making the arcuate ends 211 and the connecting ends 212 have a smooth transition, the perturbation structure 210 can optimize the radiation characteristics of the antenna device 10 and achieve better signal transmission and reception performance.

[0054] Optionally, the connecting ends 212 are arcuate edges or straight edges. By setting the edges of the arcuate ends 211 to be arcuate, the edge contour shape of the perturbation structure 210 becomes smoother and promotes the radiation characteristics. This setting can improve the electromagnetic characteristics of the antenna assembly 200, reduce the discontinuities in reflection and radiation, and ultimately reduce spurious radiation, thereby improving the communication quality. When the edges of the connecting ends 212 are straight edges, by smoothly connecting with the arcuate ends 211, compared with existing antennas, the antenna device 10 of this embodiment can also make the electric field more smoothly distributed, reduce the discontinuities in reflection and radiation, and ultimately reduce spurious radiation.

[0055] Optionally, compared with the common usage scenarios in existing mobile phones, the antenna device 10 of this embodiment can at least improve the polarization loss. This enhances the signal reception ability of the antenna device 10 in different polarization states, significantly improving the communication experience of users in various environments. Especially in scenarios with weak signals or complex environments, higher communication reliability is maintained.

[0056] In one embodiment, the radian of the arc-shaped end 211 is smaller than that of the connecting end 212. This design not only ensures the smoothness of the electric field distribution but also effectively reduces the discontinuity of reflection and radiation, thereby achieving better electromagnetic performance. Optionally, through this differential design of the radian, the antenna device 10 can better adapt to different electromagnetic environments during signal transmission and reception, reduce the generation of stray radiation, and improve the radiation efficiency. If the radian of the arc-shaped end 211 is too large, it may cause signal interference and reduced accuracy, thus affecting the overall communication quality.

[0057] In one embodiment, the antenna assembly 200 can adopt a microstrip form. By designing the size of the microstrip radiation patch according to the antenna operating frequency and loading the perturbation structure 210, the overall antenna assembly 200 can be made more compact, effectively reducing the overall size of the antenna assembly 200. The smooth geometric profile helps reduce the concentration of the electric field at the edge of the perturbation structure 210, thereby reducing the capacitance effect. The capacitance effect often leads to signal reflection and loss, and the weakening of the end effect is also beneficial to the stability of the impedance, enabling the impedance of the entire antenna assembly 200 to change continuously. This means that the antenna device 10 can obtain lower reflection loss within the rated frequency range, thereby broadening the operating bandwidth.

[0058] Compared with conventional microstrip circularly polarized antennas, the antenna device 10 in this embodiment significantly improves the circular polarization performance through specific design of the structure of the perturbation structure 210. Conventional circularly polarized antennas usually generate a zero wave path difference in the top direction of the radiation edge, and the circular polarization performance is better in this direction. However, as the deviation from the top direction increases, the wave path difference of the radiation edge will no longer be zero, and the wave path difference increases with the increase of the size, resulting in the deterioration of the axial ratio, and the circular polarization effect can only be achieved within a limited angle. Through the perturbation structure design in this embodiment, the antenna assembly 200 can maintain good circular polarization characteristics within a wider angle range, thereby improving the communication quality of the antenna device 10 in a changing environment.

[0059] In one embodiment, the antenna assembly 200 further includes at least two feeding structures 220. The feeding structures 220 are connected to the perturbation structure 210 and are spaced apart on the perturbation structure 210 to cooperate well with the power supply to ensure the effective transmission and reception of signals.

[0060] Optionally, through a uniform distribution design, the formation of hot spots can be effectively reduced, thereby improving the overall radiation efficiency. At the same time, at least two feeding structures 220 also make the feeding network of the entire antenna device 10 more flexible, so as to meet the requirements of different application scenarios.

[0061] In one embodiment, by adopting a multi-feed circular polarization method for feeding, this design effectively reduces the cross-polarization phenomenon and significantly improves the 3dB axial ratio angle of the antenna device 10; due to the use of a rotating feed to form an array structure, the circular polarization performance of the antenna device 10 is further improved. To enable the antenna device 10 of this embodiment to operate normally in the C band, the voltage standing wave ratio (VSWR) within its operating frequency band is less than 2, and the axial ratio is less than 3dB. This effective parameter configuration ensures that the antenna device 10 can provide stable signal transmission quality in actual use and reduces the risk of signal loss.

[0062] Optionally, the antenna device 10 in this embodiment adopts coaxial feeding, which has good electromagnetic wave shielding performance, can reduce the energy loss during signal transmission, so that higher-quality signals can be transmitted to the perturbation structure 210. Such a design helps to improve the voltage standing wave ratio of the antenna assembly 200, enables the antenna device 10 to support a wider impedance bandwidth, and thus meets the high requirements of modern communication devices for frequency adaptability. At the same time, the presence of coaxial feeding effectively reduces signal attenuation, providing guarantee for ensuring the stability of signal transmission over long distances.

[0063] Optionally, a plurality of feeding structures 220 are uniformly distributed along the central axis of the perturbation structure 210. With this setting, the feeding can evenly cover the entire perturbation structure 210, improving the signal radiation efficiency. Through this layout, the feeding structure 220 can effectively reduce the radiation non-uniformity caused by non-uniform feeding, ensure that balanced signals can be received and transmitted in different directions, and thus improve the overall performance of the antenna device 10.

[0064] Optionally, the number of feeding structures 220 is equal to the number of perturbation structures 210, and the two are set in a one-to-one correspondence. The advantage of this design is that through this uniform pairing, the electromagnetic characteristics of the perturbation structure 210 can be effectively utilized to further enhance the circular polarization performance. The interaction between feeding and perturbation makes the electric field distribution more ideal, thereby improving the directivity and gain of the antenna device 10 and meeting the requirements of modern communication for high performance.

[0065] In one embodiment, the number of perturbation structures 210 and feeding structures 220 is four each. Among them, the four feeding structures 220 are located on the connecting end 212 to form a 2×2 array structure. The 2×2 array formed by rotating the feeds not only improves the circular polarization performance of the antenna device 10, but also achieves a higher 3dB axial ratio angle. This arrangement allows the antenna device 10 to maintain excellent polarization characteristics within a wider angular range, thereby improving the signal quality under different transmission and reception conditions and meeting the application requirements in a changing environment.

[0066] Optionally, the antenna assembly 200 further includes an optimization sheet 230. The optimization sheet 230 is attached to the side of the perturbation structure 210 away from the substrate 100, and the optimization sheet 230 is coupled with the perturbation structure 210. In this embodiment, by introducing the optimization sheet 230, the overall performance of the antenna device 10 can be improved, especially in the case of using circular polarization technology, effectively solving the problem of the sharp deterioration of the axial ratio at high elevation angles in traditional designs. In most satellite communication technologies using circular polarization, although the axial ratio in the top direction can be less than 3dB, when deviating from the top direction, due to the radiation path difference, the axial ratio performance often decreases rapidly, and the circular polarization characteristics are maintained only within a very small angular range.

[0067] Based on this, the antenna device 10 in this embodiment can significantly improve the gain performance of the antenna pattern at low elevation angles, improve the stability of the phase center, and enhance the ability of the antenna device 10 to resist multipath effects by introducing the optimization sheet 230 in the antenna assembly 200. This optimized design effectively improves the overall performance of the antenna device 10, making it more adaptable in a complex signal environment.

[0068] Optionally, the optimization sheet 230 is located at the top of the perturbation structure 210 (i.e., the side of the perturbation structure 210 away from the substrate 100). Since the perturbation structure 210 in the form of a microstrip itself has a capacitive characteristic, the optimization sheet 230 is mainly used to expand the beam and improve the low elevation angle gain. The coupling relationship between the optimization sheet 230 and the perturbation structure 210 also makes the interaction between the two particularly important. While adjusting the resonant frequency of the antenna device 10, it also promotes the compact design of the antenna device 10 and increases the impedance bandwidth.

[0069] In one embodiment, the height and size of the optimization sheet 230 and the perturbation structure 210 can be optimized synchronously, because the change in size between the two will cause the movement of the resonant frequency point and the fluctuation of the overall performance. This comprehensive consideration ensures that the antenna assembly 200 can still maintain good working characteristics and efficient signal transmission while being miniaturized. Therefore, the application of the optimization sheet 230 not only improves the technical performance of the antenna, but also provides higher flexibility and reliability for the practical application of the antenna device 10.

[0070] In one embodiment, the optimization sheet 230 is coaxially arranged with the perturbation structure 210, and the optimization sheet 230 is rotationally symmetric about the central axis of the perturbation structure 210.

[0071] Optionally, the optimization sheet 230 can effectively improve the radiation characteristics of the antenna device 10, making the gain more uniform in all directions, thereby enhancing the adaptability of the antenna device 10 in different working environments. The rotational symmetry characteristic of the optimization sheet 230 further reduces polarization distortion, contributing to maintaining a good circular polarization state, and is particularly suitable for high-precision signal transmission scenarios such as satellite communication.

[0072] Optionally, the optimization sheet 230 is preferably a circular sheet structure. This circular sheet structure design enables the optimization sheet to be more uniformly distributed on the radiation surface, effectively expanding the beam width and improving the low-elevation gain. In addition, the circular shape also makes the optimization sheet 230 easy to process and install, reducing production costs. Compared with other complex-shaped designs, the circular sheet structure has higher stability and consistency in the manufacturing process and assembly process, ensuring the performance consistency of the antenna during mass production.

[0073] In one embodiment, in terms of the material selection of the optimization sheet 230, polymethyl methacrylate (PMMA), polytetrafluoroethylene (PTFE), Taconic plates, ceramic-filled plates, polyimide (PI) plates, etc. can all be used as the material of the optimization sheet 230. PMMA is widely used in microstrip antennas due to its low dielectric loss and low dielectric constant. It is usually used as a substrate material, and when combined with carbon nanotubes (CNTs) as a conductive material, it can effectively improve the radiation characteristics. The PTFE material is also widely used in microstrip antennas due to its low dielectric loss and low dielectric constant. The selection of PTFE-based plates is beneficial for the design of high-performance antennas. The ceramic-filled RO4003C plates also exhibit excellent high-frequency characteristics and can meet the requirements of high-frequency applications. The polyimide (PI) material has good high-temperature resistance and is suitable for use in more severe environments. At the same time, the F4B plate, as a special PTFE-based plate, has very low dielectric loss characteristics and is particularly suitable for high-performance radio frequency and microwave applications.

[0074] In one embodiment, the antenna assembly 200 may further include an omnidirectional loop 240. The omnidirectional loop 240 is disposed on the side of the substrate 100 facing the antenna assembly 200, and the omnidirectional loop 240 surrounds the perturbation structure 210 and is spaced apart from the perturbation structure 210.

[0075] Optionally, to improve the circular polarization axial ratio at angles deviating from the top direction, the antenna device 10 in this embodiment designs an omnidirectional loop 240 on the outer circle of the perturbation structure 210. After coupling the omnidirectional loop 240 with the perturbation structure 210, induced current can be generated on the omnidirectional loop 240, thereby improving the transceiver effect. After the size of the omnidirectional loop 240 is optimized, it can be superimposed and complementary with the far-field radiation of the perturbation structure 210, expanding the beam width and significantly improving the axial ratio angle. This design enables the antenna device 10 to effectively radiate circularly polarized waves in a large-angle space, overcoming the deficiencies of general microstrip antennas in large-angle circular polarization characteristics.

[0076] In one embodiment, to further improve the low elevation gain, an optimized patch 230 is loaded on the top of the perturbation structure 210. This setting not only enhances the radiation ability of the omnidirectional loop 240, but also improves the wide-angle pattern of the antenna device 10 and enhances the low elevation gain. This design enables the antenna device 10 to more effectively capture signals from different directions in practical applications, improving the overall performance of the antenna device 10.

[0077] Through the effective combination of the omnidirectional loop 240 and the optimized patch 230 in the antenna assembly 200, the antenna device 10 in this embodiment can achieve more reliable circular polarization radiation in a wide range of angles, not only enhancing the signal quality, but also improving the adaptability in various working environments.

[0078] Optionally, the number of omnidirectional loops 240 can be one, and one omnidirectional loop 240 is arranged around the perturbation structure 210; in other embodiments, the number of omnidirectional loops 240 can also be at least two, and at least two omnidirectional loops 240 can be arranged in a zigzag shape in sequence, also surrounding the perturbation structure 210. This setting not only increases the radiation area, but also helps to enhance the signal coverage ability in multiple directions, ensuring the adaptability of the antenna device 10 in different working environments.

[0079] In one embodiment, the omnidirectional loop 240 can be circular. With this setting, the circular omnidirectional loop 240 can not only achieve uniform radiation characteristics, but also effectively reduce the performance fluctuations caused by manufacturing errors. The circular design enables the omnidirectional loop to uniformly emit signals in different directions during radiation, providing a wider coverage range, thereby enhancing the reliability and stability of the antenna device 10.

[0080] Optionally, the omnidirectional loop 240 can be made of metal materials such as copper, aluminum, and stainless steel. Metal materials have excellent electrical conductivity, which can effectively improve the electromagnetic compatibility of the omnidirectional loop. Copper has excellent electrical conductivity; aluminum is suitable for portable and lightweight designs due to its light weight and good electrical conductivity; stainless steel is suitable for applications in harsh environments due to its excellent corrosion resistance and strength; in addition, copper alloys can provide enhanced mechanical properties through alloying while maintaining good electrical conductivity, which is suitable for specific applications. It is specifically determined according to the design requirements of the antenna assembly 200 and is not uniquely limited here.

[0081] Optionally, the size and thickness of the circular omnidirectional loop 240 can also be reasonably designed according to the actual application requirements, which can not only meet the radiation requirements but also control costs and improve production efficiency. Optionally, an omnidirectional loop tool with a smaller diameter can adapt to application scenarios with limited space, while a larger diameter design is more suitable for broad signal emission requirements.

[0082] In one embodiment, the antenna assembly 200 further includes a barrier wall 250. The barrier wall 250 is disposed on the side of the substrate 100 facing the antenna assembly 200, and the barrier wall 250 is disposed on the outer peripheral side of the perturbation structure 210. The thickness of the barrier wall 250 is not less than the thickness of the perturbation structure 210 to ensure that while effectively suppressing surface waves, it does not affect the radiation characteristics of the perturbation structure 210 itself.

[0083] Optionally, by disposing the barrier wall 250 on the outer side of the perturbation structure 210, surface waves can be effectively suppressed and backscattering can be reduced, thereby significantly improving the phase center stability of the antenna device 10. Optionally, the barrier wall 250 can resist interference from external signals to the perturbation structure 210, enhance the multipath effect resistance ability of the antenna device 10, and thus improve its performance in complex environments. Especially in urban or industrial environments, the resistance to multipath effects is particularly important, which makes this design have significant advantages in practical applications.

[0084] The design scheme using the barrier wall 250 not only effectively curbs the propagation of surface waves of the antenna device 10 and further enhances the rotational symmetry of the antenna. At the same time, by adjusting the thickness and width dimensions of the barrier wall 250, the coupling effect between the barrier wall 250 and the perturbation structure 210 can be changed, the low elevation angle beam width can be expanded, and the wide-angle axial ratio performance can be optimized.

[0085] Optionally, the barrier wall 250 is a regular polygon, or the barrier wall 250 is a circle. With this arrangement, the antenna assembly 200 can have better structural stability and radiation performance. The design form of the regular polygon structure, especially when the barrier wall 250 is a regular hexagon, helps to improve the stability of the antenna phase center. This shape not only improves the radiation characteristics of the antenna device 10 at different angles, but also increases the rotational symmetry of the antenna device 10, thereby optimizing the overall performance of the antenna device 10.

[0086] Optionally, when the barrier wall 250 is a regular hexagon, the lengths of the sides are equal, which can provide a uniform barrier effect and reduce the interference of surface waves. The advantage of the regular hexagonal design in terms of symmetry reduces the coupling between the antenna and external interference, and improves the anti-interference ability of the antenna device 10 to multipath effects. Optionally, the structural advantage is also reflected in the simplification of the manufacturing process. Through standardized hexagonal molds, the production cost can be effectively reduced and the efficiency of mass production can be improved. Of course, in other embodiments, the barrier wall 250 can also be a regular triangle, a square, or a regular polygon with more than six sides. Of course, when the barrier wall 250 is circular, the barrier wall 250 can be made to uniformly surround the disturbance structure 210 to ensure uniform blocking of the antenna device 10. By selecting a barrier wall 250 of an appropriate shape, different technical features can be combined in practical applications to adapt to various environmental requirements and ensure that the antenna assembly 200 performs at its maximum performance in the communication system.

[0087] Optionally, see Figure 1 As shown, the number of antenna components 200 is at least two groups, and at least two groups of antenna components 200 are arranged on the substrate 100 at intervals or in an array.

[0088] In this embodiment, the overall radiation coverage capability of the system and the stability of signal transmission can be effectively improved by evenly arranging multiple groups of antenna components 200 on the substrate 100. Such a layout scheme improves the working efficiency of the antenna, avoids the generation of signal blind spots, and thus achieves a wider communication range.

[0089] Optionally, these antenna assemblies 200 can be designed in a modular manner, with appropriate spacing between each assembly to reduce mutual interference between them. In practical applications, this spacing can be adjusted according to the specific propagation characteristics of the wireless signal to further optimize the performance of the antenna. At the same time, this uniform layout also helps to reduce the complexity of the system, making the debugging and maintenance of the entire antenna system easier. In addition, the substrate 100 can also use materials with good high-frequency characteristics, such as polytetrafluoroethylene (PTFE), to improve the overall performance of the antenna assembly 200 and reduce losses.

[0090] In one embodiment, the number of antenna assemblies 200 is four groups, and the four groups of antenna assemblies 200 are respectively disposed at the vertices of the virtual rectangle L. Specifically, the two groups of antenna assemblies 200 disposed on the long side of the virtual rectangle L are spaced apart, while the two groups of antenna assemblies 200 disposed on the short side of the virtual rectangle L are disposed in a fitting manner.

[0091] This setting can evenly distribute the radiation energy, enhance the signal stability and coverage. At the same time, this structural design can effectively reduce the mutual interference and improve the working efficiency of each antenna assembly 200.

[0092] Refer to Figures 5 to 7 As shown, in the designed frequency band, the antenna device 10 in this embodiment achieves large-angle circular polarization. This polarization method can significantly improve the polarization loss and make the performance of the antenna more excellent. Especially in satellite communication, large-angle circular polarization can effectively improve the signal quality and reduce the signal attenuation, thus ensuring the stability of data transmission. In addition, the strong rotational symmetry of the antenna helps to provide a better multipath propagation effect, further improving the performance of the antenna device 10 in the satellite communication environment when applied to a smart phone.

[0093] The present invention also provides a smart terminal 1, which includes a body 20 and the antenna device 10 in any one of the above embodiments; the substrate 100 of the antenna device 10 is detachably connected to the body 20, or the substrate 100 of the antenna device 10 is movably connected to the body 20.

[0094] In one embodiment, in the smart terminal 1 of this embodiment, by setting the antenna device 10 in any one of the above embodiments, the antenna assembly 200 in the antenna device 10 of this embodiment is provided with a perturbation structure 210 having a plurality of arc-shaped ends 211. This design not only optimizes the impedance matching performance of the antenna, but also realizes the continuous change of the impedance, thus significantly improving the bandwidth of the antenna. This broadband characteristic enables the antenna to maintain excellent signal reception ability at different frequencies and polarization modes, reduces the performance attenuation caused by polarization loss, and further improves the signal quality of the smart terminal 1.

[0095] In one embodiment, the smart terminal 1 can be a mobile phone, and the body 20 is provided with a camera module 21. By disposing the antenna device 10 in the camera module 21 of the mobile phone, such a layout design not only reduces the pressure of increasing the number of antennas in the metal middle frame or the top and bottom edge regions of the whole machine, but also significantly improves the space utilization rate.

[0096] Compared with traditional mobile phone antennas, the antenna device 10 in this embodiment has better radiation performance in the upper hemisphere. This improvement makes the signal coverage more extensive, can effectively avoid the loss of backward energy, and ensure the efficiency of signal transmission. Under the same transmission performance conditions, the power consumption required for this design is significantly reduced, thereby providing users with a longer use experience. Therefore, compared with traditional designs, this antenna solution not only improves the communication performance of the device, but also helps to extend the battery life of the device, meeting the needs of modern users for efficient and high-performance devices. Optionally, the intelligent terminal 1 can also be a satellite phone, a positioning device, a tablet computer, etc., which is not limited here.

[0097] Optionally, the antenna device 10 can be connected to the camera module 21 through the substrate 100 by a detachable connection method such as magnetic attraction, suction cup, bonding, snap-fit, plug-in, etc. The various connection methods of the antenna device 10 not only improve the flexibility of disassembly and assembly of the antenna device 10, but also provide a convenient user experience. In particular, the connection methods of magnetic attraction and suction cup allow users to quickly install and remove the antenna without complicated tools, greatly improving the convenience and efficiency of operation.

[0098] When using the smart terminal 1, when satellite communication is required, the antenna device 10 can be connected to the body 20 through a cable. This detachable design allows the antenna device 10 to be quickly and conveniently connected to the body 20 when needed, ensuring that the communication function is immediately enabled. After use, the user can easily separate the antenna device 10 from the body 20, which is convenient to use. Specifically, the body 20 can power the antenna device 10 through a cable and send and receive signals through the antenna device 10.

[0099] Optionally, for different user needs, the specific implementation of the antenna device 10 can be further designed to have an adjustment function, for example, the connection part can be designed as a slide rail type, so that the user can adjust the relative position and angle of the antenna device 10 according to different usage environments. This design meets the signal requirements in different scenarios, ensures the stability and improvement of communication quality, and facilitates the flexible use of users in various environmental conditions, further enhancing the convenience and adaptability of the smart terminal 1.

[0100] Optionally, the smart terminal can be implemented in various forms. For example, the smart terminal described in this application can include mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0101] In the following description, a mobile terminal will be taken as an example for illustration. Those skilled in the art will understand that, except for the components specifically for mobile purposes, the structure according to the embodiments of the present application can also be applied to fixed-type terminals.

[0102] Please refer to Figure 8 As shown, it is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application. The mobile terminal 500 may include: an RF (Radio Frequency) unit 501, a WiFi module 502, an audio output unit 503, an A / V (audio / video) input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511, etc. Those skilled in the art can understand that Figure 8 the mobile terminal structure shown in

[0103] does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements. Figure 8 The following will specifically introduce each component of the mobile terminal:

[0104] The radio frequency unit 501 can be used for receiving and transmitting information or signals during a call. Optionally, after receiving the downlink information of the base station, it is sent to the processor 510 for processing. Additionally, the uplink data is sent to the base station. Generally, the radio frequency unit 501 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc. In addition, the radio frequency unit 501 can also communicate with the network and other devices via wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G, and 6G, etc.

[0105] WiFi belongs to short-range wireless transmission technology. The mobile terminal can help users send and receive emails, browse the web, and access streaming media, etc. through the WiFi module 502. It provides users with wireless broadband Internet access. Although Figure 8 the WiFi module 502 is shown, it can be understood that it does not belong to an essential component of the mobile terminal and can be omitted entirely within the scope of not changing the essence of the application as needed.

[0106] The audio output unit 503 can convert the audio data received by the radio frequency unit 501 or the WiFi module 502 or stored in the memory 509 into an audio signal and output it as sound when the mobile terminal 500 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, etc. Moreover, the audio output unit 503 can also provide an audio output related to a specific function executed by the mobile terminal 500 (such as a call signal reception sound, a message reception sound, etc.). The audio output unit 503 can include a speaker, a buzzer, etc.

[0107] The A / V input unit 504 is used to receive audio or video signals. The A / V input unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042. The GPU 5041 processes the image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames can be displayed on the display unit 506. The image frames processed by the GPU 5041 can be stored in the memory 509 (or other storage media) or transmitted via the radio frequency unit 501 or the WiFi module 502. The microphone 5042 can receive sounds (audio data) via the microphone 5042 in operating modes such as a phone call mode, a recording mode, a voice recognition mode, etc., and can process such sounds into audio data. The processed audio (voice) data can be output in a format that can be transmitted to a mobile communication base station via the radio frequency unit 501 in the case of the phone call mode. The microphone 5042 can implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) the noise or interference generated during the reception and transmission of audio signals.

[0108] The mobile terminal 500 further includes at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 5061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 5061 and / or the backlight when the mobile terminal 500 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as a pedometer, tapping), etc.; as for other sensors that the mobile phone can also be configured with, such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., they will not be elaborated here.

[0109] The display unit 506 is used to display the information input by the user or the information provided to the user. The display unit 506 may include a display panel 5061, and the display panel 5061 can be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), etc.

[0110] The user input unit 507 can be used to receive input numerical or character information, and generate key signal inputs related to the user settings and function controls of the mobile terminal. Optionally, the user input unit 507 can include a touch panel 5071 and other input devices 5072. The touch panel 5071, also known as a touch screen, can collect touch operations of the user thereon or nearby (such as operations of the user using any suitable object or accessory such as a finger, a stylus, etc. on or near the touch panel 5071), and drive corresponding connection devices according to a preset program. The touch panel 5071 can include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the touch orientation of the user, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the processor 510, and can receive and execute the commands sent by the processor 510. In addition, the touch panel 5071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 5071, the user input unit 507 can also include other input devices 5072. Optionally, the other input devices 5072 can include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, drive keys, etc.), a trackball, a mouse, a joystick, etc., and are not specifically limited here.

[0111] Optionally, the touch panel 5071 can cover the display panel 5061. After the touch panel 5071 detects a touch operation thereon or nearby, it transmits the touch operation to the processor 510 to determine the type of touch event. Subsequently, the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of touch event. Although in Figure 8 the touch panel 5071 and the display panel 5061 are implemented as two independent components to realize the input and output functions of the mobile terminal, in some embodiments, the touch panel 5071 and the display panel 5061 can be integrated to realize the input and output functions of the mobile terminal, and are not specifically limited here.

[0112] The interface unit 508 serves as an interface through which at least one external device can be connected to the mobile terminal 500. For example, the external device can include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headset port, and so on. The interface unit 508 can be used to receive inputs from an external device (such as data information, power, etc.) and transmit the received inputs to one or at least one element within the mobile terminal 500 or can be used to transmit data between the mobile terminal 500 and the external device.

[0113] The memory 509 can be used to store software programs and various data. The memory 509 mainly includes a program storage area and a data storage area. Optionally, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, phone book, etc.). In addition, the memory 509 can include high-speed random access memory and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0114] The processor 510 is the control center of the mobile terminal, connecting various parts of the entire mobile terminal through various interfaces and circuits. By running or executing software programs and / or modules stored in the memory 509, and by calling the data stored in the memory 509, it executes various functions of the mobile terminal and processes data, thereby monitoring the mobile terminal as a whole. The processor 510 can include one or at least one processing unit; preferably, the processor 510 can integrate an application processor and a modem processor. Optionally, the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 510.

[0115] The mobile terminal 500 can also include a power supply 511 (such as a battery) for powering each component. Preferably, the power supply 511 can be logically connected to the processor 510 through a power management system, thereby realizing functions such as management of charging, discharging, and power consumption management through the power management system.

[0116] Although Figure 8 not shown, the mobile terminal 500 can also include a Bluetooth module, etc., which will not be elaborated here.

[0117] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of 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 embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0118] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified or limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0119] In the embodiments of the present application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0120] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An antenna device (10), characterized in that: include: substrate(100); An antenna component (200) is disposed on the substrate (100); The antenna assembly (200) comprises at least two disturbance structures (210), the disturbance structure (210) comprises at least two arc-shaped ends (211), and the at least two arc-shaped ends (211) are arranged in rotational symmetry.

2. The antenna device (10) according to claim 1, characterized in that The disturbance structure (210) further comprises at least two connecting ends (212), and the arc-shaped end (211) is smoothly connected to the connecting ends (212).

3. The antenna device (10) according to claim 2, characterized in that The connecting end (212) is an arc-shaped edge or a straight edge; and / or, The arcuate end portion (211) has a smaller arc than the connecting end portion (212).

4. The antenna device (10) according to claim 1, characterized in that The antenna assembly (200) further comprises at least two feeding structures (220), wherein the feeding structures (220) are connected to the disturbance structure (210) and are arranged on the disturbance structure (210) at intervals, and the feeding structures (220) are connected to the disturbance structure (210).

5. The antenna device (10) according to any one of claims 1 to 4, characterized in that: The antenna component (200) further comprises an optimization sheet (230), wherein the optimization sheet (230) is attached to a side of the antenna component (200) away from the substrate (100), and the optimization sheet (230) is coupled to the antenna component (200).

6. The antenna device (10) according to claim 5, characterized in that The optimization sheet (230) is coaxially arranged with the disturbance structure (210), and the optimization sheet (230) is rotationally symmetrically arranged about the central axis of the disturbance structure (210).

7. The antenna device (10) according to any one of claims 1 to 4, characterized in that: The antenna assembly (200) further comprises an omnidirectional ring (240), wherein the omnidirectional ring (240) is arranged on a side of the substrate (100) facing the antenna assembly (200), and the omnidirectional ring (240) is arranged around the disturbance structure (210), and the omnidirectional ring (240) and the disturbance structure (210) are arranged at intervals; and / or, The antenna assembly (200) further comprises a barrier wall (250), wherein the barrier wall (250) is arranged on a side of the substrate (100) facing the antenna assembly (200), and the barrier wall (250) is arranged on an outer peripheral side of the disturbance structure (210), wherein the thickness of the barrier wall (250) is not less than the thickness of the disturbance structure (210).

8. The antenna device (10) according to any one of claims 1 to 4, characterized in that: The number of the antenna components (200) is at least two groups, and the at least two groups of antenna components (200) are arranged on the substrate (100) at intervals or in an array.

9. The antenna device (10) according to claim 8, characterized in that The number of the antenna components (200) is four, and the four groups of antenna components (200) are respectively arranged at the vertices of a virtual rectangle, and the two groups of antenna components (200) arranged on the long sides of the virtual rectangle are arranged at intervals; and / or, The two groups of antenna components (200) arranged on the short sides of the virtual rectangle are arranged in close proximity.

10. An intelligent terminal, characterized in that: The invention comprises the antenna device (10) as claimed in any one of claims 1 to 9.

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