Antenna structure and intelligent terminal

Abstract

An antenna structure and an intelligent terminal, the antenna structure comprises a radiation layer, a support layer, a ground layer and a plurality of connecting rod assemblies, the radiation layer is arranged on the upper surface of the support layer, the ground layer is arranged on the lower surface of the support layer, the radiation layer is provided with at least one main oscillator, a plurality of reflection oscillators and a plurality of director oscillators, the main oscillator, the reflection oscillators and the director oscillators are electrically connected with the ground layer through at least one connecting rod assembly. The antenna structure has the performance advantages of small size and wide coverage.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to an antenna structure and an intelligent terminal. Background Art

[0002] With the rapid development of wireless communication technology, especially satellite communication technology, some special requirements are put forward for antennas, such as high directivity, coverage, gain and low quality antennas. Among traditional antennas, the classic Yagi antenna can meet such requirements. However, while the traditional Yagi antenna meets the requirements of high directivity and high gain, it uses a large number of directors and sacrifices the space between each director unit, resulting in its size becoming very large, and at the same time increasing the weight of the antenna, which cannot be installed and used in some communication equipment constrained by space and weight. Summary of the invention

[0003] In view of this, the present invention provides an antenna structure having the performance advantages of small size and wide coverage.

[0004] An antenna structure includes a radiation layer, a support layer, a ground layer and a plurality of connecting rod assemblies, wherein the radiation layer is arranged on the upper surface of the support layer, and the ground layer is arranged on the lower surface of the support layer. At least one main oscillator, a plurality of reflection oscillators and a plurality of guiding oscillators are arranged on the radiation layer, and the main oscillator, each of the reflection oscillators and each of the guiding oscillators are electrically connected to the ground layer through at least one of the connecting rod assemblies.

[0005] In an embodiment of the present invention, the above-defined first direction and second direction are perpendicular to each other, the plurality of reflection vibrators are located on one side of the main vibrator, the plurality of guide vibrators are located on the other side opposite to the main vibrator, the main vibrator and the plurality of guide vibrators are arranged in sequence along the first direction, the two reflection vibrators arranged in sequence along the second direction are combined into one vibrator unit, the plurality of reflection vibrators are combined into a plurality of vibrator units, and the plurality of vibrator units are arranged in sequence along a direction opposite to the first direction.

[0006] In an embodiment of the present invention, the diameters of the two reflective vibrators of each vibrator unit are the same, and the diameter of the reflective vibrator of each vibrator unit gradually increases along a direction opposite to the first direction.

[0007] In an embodiment of the present invention, the vibrator unit defined above as being closest to the main vibrator is a first unit, and the vibrator unit adjacent to the first unit is defined as a second unit, the two reflection vibrators of the first unit have a first diameter, and the center distance between the two reflection vibrators of the first unit is a first spacing, the two reflection vibrators of the second unit have a second diameter, and the center distance between the two reflection vibrators of the second unit is a second spacing, the first diameter is smaller than the second diameter, the first spacing is equal to the second diameter, and the second spacing is larger than the second diameter.

[0008] In an embodiment of the present invention, the value range of the first diameter, the second diameter, and the second spacing is 0.1λ to 0.25λ, where λ is the wavelength of the designed antenna.

[0009] In an embodiment of the present invention, the vertical distance between the center of the main oscillator and the line connecting the centers of the two reflection oscillators of the first unit is the third spacing, and the vertical distance between the center of the main oscillator and the line connecting the centers of the two reflection oscillators of the second unit is the fourth spacing, and the third spacing is smaller than the fourth spacing.

[0010] In an embodiment of the present invention, the third spacing is 0.3 to 0.5 times the fourth spacing, and the fourth spacing is 1 / 4λ.

[0011] In an embodiment of the present invention, the main oscillator has a third diameter, and the third diameter is 0.1λ to 0.2λ.

[0012] In an embodiment of the present invention, the centers of the main vibrator and the plurality of guide vibrators are on the same straight line.

[0013] In an embodiment of the present invention, along the first direction, the diameter of each of the director vibrators gradually decreases.

[0014] In an embodiment of the present invention, the guide vibrator defined above as being closest to the main vibrator is the third vibrator, the guide vibrator adjacent to the third vibrator is defined as the fourth vibrator, the guide vibrator adjacent to the fourth vibrator is defined as the fifth vibrator, the center distance between the main vibrator and the third vibrator is the fifth spacing, the center distance between the main vibrator and the fourth vibrator is the sixth spacing, the center distance between the main vibrator and the fifth vibrator is the seventh spacing, the fifth spacing is smaller than the sixth spacing, and the sixth spacing is smaller than the seventh spacing.

[0015] In an embodiment of the present invention, the fifth spacing, the sixth spacing, and the seventh spacing have a value range of 1 / 8λ to 1 / 4λ.

[0016] In an embodiment of the present invention, the third vibrator has a fourth diameter, the fourth vibrator has a fifth diameter, the fifth vibrator has a sixth diameter, and the fourth diameter, the fifth diameter, and the sixth diameter have a value range of 0.05λ to 0.15λ.

[0017] In an embodiment of the present invention, the above-mentioned third vibrator is electrically connected to the ground layer through the two connecting rod assemblies, one of the connecting rod assemblies is connected to the center of the third vibrator, and the center line distance between the two connecting rod assemblies is the ninth spacing, and the value range of the ninth spacing is 0.02λ~0.04λ.

[0018] In an embodiment of the present invention, the above-mentioned fourth vibrator is electrically connected to the ground layer through two connecting rod assemblies, one of the connecting rod assemblies is connected to the center of the fourth vibrator, and the center line distance between the two connecting rod assemblies is the tenth spacing, and the value range of the tenth spacing is 0.02λ~0.04λ.

[0019] In an embodiment of the present invention, the above-mentioned fifth vibrator is electrically connected to the ground layer through the two connecting rod assemblies, one of the connecting rod assemblies is connected to the center of the fifth vibrator, and the center line distance between the two connecting rod assemblies is the eleventh spacing, and the value range of the eleventh spacing is 0.02λ~0.04λ.

[0020] In an embodiment of the present invention, the above-mentioned antenna structure also includes a connector, which includes a connector seat and a conductive rod, the end of the conductive rod is fixed to the connector seat, the connector seat is fixed to the ground layer, the trunk of the conductive rod is arranged in the supporting layer, and the third end of the conductive rod away from the connector seat is connected to the center of the main oscillator.

[0021] In an embodiment of the present invention, the main vibrator is also electrically connected to the ground layer via a connecting rod assembly.

[0022] In an embodiment of the present invention, a vertical distance between a center line of the joint and a center line of the connecting rod assembly is an eighth spacing, and a value range of the eighth spacing is 0.02λ to 0.04λ.

[0023] In an embodiment of the present invention, the antenna structure further comprises a sleeve, which is arranged in the supporting layer, arranged corresponding to the main oscillator, arranged adjacent to the conductive rod, and the connecting rod assembly is at least partially arranged in the sleeve.

[0024] In an embodiment of the present invention, each of the connecting rod assemblies includes an interconnecting rod, one end of the interconnecting rod of each of the connecting rod assemblies is respectively welded to the main oscillator, each of the reflection oscillators and each of the guide oscillators, and the other end of the interconnecting rod of each of the connecting rod assemblies is welded to the ground layer.

[0025] In an embodiment of the present invention, a first welding head and a second welding head are respectively fixed at both ends of the interconnection rod, the first welding head is welded to the main oscillator, each of the reflection oscillators and each of the guide oscillators, the second welding head is welded to the ground layer, and the outer diameter of the first welding head and / or the second welding head is larger than the outer diameter of the interconnection rod.

[0026] In an embodiment of the present invention, the supporting layer is made of a flexible material that enables the antenna structure to be flexibly bent.

[0027] In an embodiment of the present invention, the flexible material includes polyimide aerogel and aramid aerogel.

[0028] In an embodiment of the present invention, the radiation layer includes a first insulating pad and a plurality of vibrators disposed on the first insulating pad, and the first insulating pad is a flexible polyimide film or a flexible PDMS film.

[0029] In an embodiment of the present invention, the ground layer includes a second insulating pad and a circuit layer disposed on the second insulating pad, and the second insulating pad is a flexible polyimide film or a flexible PDMS film.

[0030] The present invention also relates to an intelligent terminal, comprising the above antenna structure.

[0031] The antenna structure of the present invention connects the main oscillator, the multiple reflective oscillators, the multiple guiding oscillators and the ground layer through multiple connecting rod assemblies, and the antenna structure has the advantages of small size and wide coverage, and is easy to carry. The connecting rod assembly of the present invention is pre-buried in the supporting layer, which can solve the problem of vertical interconnection of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the split structure of the antenna structure of the first embodiment of the present invention.

[0033] Figure 2 It is a schematic cross-sectional structural diagram of the antenna structure of the first embodiment of the present invention.

[0034] Figure 3 yes Figure 2 A locally enlarged schematic diagram of the antenna structure is shown.

[0035] Figure 4 1 is a schematic diagram of a top view of the antenna structure of the first embodiment of the present invention.

[0036] Figure 5 It is a coordinate diagram of the return loss of the antenna structure tested according to the first embodiment of the present invention.

[0037] Figure 6It is a coordinate diagram of the antenna structure gain test of the first embodiment of the present invention.

[0038] Figure 7 It is a schematic diagram of the split structure of the antenna structure of the second embodiment of the present invention.

[0039] Figure 8 1 is a schematic diagram of a top view of the antenna structure of the second embodiment of the present invention.

[0040] Fig. 9 It is a schematic diagram of the split structure of the antenna structure of the second embodiment of the present invention.

[0041] Fig.10 yes Fig. 9 A locally enlarged schematic diagram of the antenna structure is shown.

[0042] Fig.11 2 is a schematic structural diagram of a first clamping member according to a second embodiment of the present invention.

[0043] Fig.12 It is a partial enlarged structural schematic diagram of the support layer of the second embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0045] In the following description, reference is made to the accompanying drawings, which describe several embodiments of the present invention. It should be understood that other embodiments may be used and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present invention. The following detailed description should not be considered limiting, and the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0046] Although the terms first, second, etc. are used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.

[0047] Furthermore, as used in this article, the singular forms "one", "an" and "the" are intended to include plural forms as well, unless there is an indication to the contrary in the context. It should be further understood that the terms "comprise", "include" indicate the presence of features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

[0048] First embodiment

[0049] Figure 1 is a schematic diagram of the split structure of the antenna structure of the first embodiment of the present invention, Figure 2 is a schematic cross-sectional view of the antenna structure of the first embodiment of the present invention, Figure 3 yes Figure 2 Please refer to the partial enlarged structural diagram of the antenna structure shown in Figures 1 to 3 The antenna structure includes a radiation layer 11, a support layer 12, a ground layer 13 and a plurality of connecting rod assemblies 14. The radiation layer 11 is arranged on the upper surface of the support layer 12, and the ground layer 13 is arranged on the lower surface of the support layer 12. At least one main oscillator 112, a plurality of reflection oscillators 114 and a plurality of guiding oscillators 113 are provided on the radiation layer 11. The main oscillator 112, each reflection oscillator 114 and each guiding oscillator 113 are electrically connected to the ground layer 13 through at least one connecting rod assembly 14 respectively.

[0050] The antenna structure of the present invention connects the main oscillator 112, the multiple reflection oscillators 114, the multiple guide oscillators 113 and the ground layer 13 through multiple connecting rod assemblies 14. The antenna structure has the advantages of small size and wide coverage, and is easy to carry. The connecting rod assembly 14 of the present invention is pre-buried in the support layer 12, which can solve the problem of vertical interconnection of the antenna.

[0051] Optionally, the antenna structure as a whole can be flexibly bent and deformed.

[0052] Optionally, the radiation layer 11 is adhered to the upper surface of the support layer 12 by means of flexible glue; and the ground layer 13 is adhered to the lower surface of the support layer 12 by means of flexible glue.

[0053] Optionally, Figure 4 is a schematic diagram of a top view of the antenna structure of the first embodiment of the present invention. Figure 1 and Figure 4As shown, a first direction X and a second direction Y perpendicular to each other are defined, a plurality of reflection vibrators 114 are located on one side of a main vibrator 112, a plurality of guiding vibrators 113 are located on the other side opposite to the main vibrator 112, the main vibrator 112 and the plurality of guiding vibrators 113 are arranged in sequence along the first direction X, two reflection vibrators 114 arranged in sequence along the second direction Y are combined into a vibrator unit, a plurality of reflection vibrators 114 are combined into a plurality of vibrator units, and a plurality of vibrator units are arranged in sequence along a direction opposite to the first direction X.

[0054] Alternatively, if Figure 1 and Figure 4 As shown, the diameters of the two reflection vibrators 114 of each vibrator unit are the same, and along the direction opposite to the first direction X, the diameter of the reflection vibrator 114 of each vibrator unit gradually increases.

[0055] Alternatively, if Figure 1 and Figure 4 As shown, the vibrator unit closest to the main vibrator 112 is defined as the first unit, and the vibrator unit adjacent to the first unit is defined as the second unit. The two reflection vibrators 114 of the first unit have a first diameter D1, and the center distance between the two reflection vibrators 114 of the first unit is a first spacing W1. The two reflection vibrators 114 of the second unit have a second diameter D2, and the center distance between the two reflection vibrators 114 of the second unit is a second spacing W2. The first diameter D1 is smaller than the second diameter D2, the first spacing W1 is equal to the second diameter D2, and the second spacing W2 is larger than the second diameter D2. The two reflection vibrators 114 of the first unit are defined as the first vibrator 114a, and the two reflection vibrators 114 of the second unit are defined as the second vibrator 114b, that is, the two first vibrators 114a have the first diameter D1, the two second vibrators 114b have the second diameter D2, the center distance between the two first vibrators 114a is the first spacing W1, and the center distance between the two second vibrators 114b is the second spacing W2. In this embodiment, by changing the center distance between the two first dipoles 114 a and / or the center distance between the two second dipoles 114 b , or changing the number of reflective dipoles 114 , the front and rear lobe ratio of the antenna can be increased, thereby increasing the gain of the directional antenna.

[0056] Optionally, the first diameter D1, the second diameter D2, and the second spacing W2 have a value range of 0.1λ to 0.25λ, where λ is the wavelength of the antenna structure. The values ​​of the first diameter D1, the second diameter D2, and the second spacing W2 within the range of 0.1λ to 0.25λ can further improve the front and rear lobe ratio of the antenna, thereby further improving the gain of the directional antenna.

[0057] Alternatively, if Figure 4As shown, the vertical distance between the center of the main oscillator 112 and the line connecting the centers of the two reflection oscillators 114 (first oscillator 114a) of the first unit is the third spacing W3, and the vertical distance between the center of the main oscillator 112 and the line connecting the centers of the two reflection oscillators 114 (second oscillator 114b) of the second unit is the fourth spacing W4, and the third spacing W3 is smaller than the fourth spacing W4. By designing the spacing between the main oscillator 112 and the reflection oscillator 114, the front and rear lobe ratio of the antenna can be further improved, thereby further improving the gain of the directional antenna.

[0058] Optionally, the third spacing W3 is 0.3 to 0.5 times the fourth spacing W4, and the fourth spacing W4 is 1 / 4λ. The third spacing W3 and the fourth spacing W4 are within the above range, which can further improve the front and rear lobe ratio of the antenna, thereby further improving the gain of the directional antenna.

[0059] Optionally, the main oscillator 112 has a third diameter D3, and the third diameter D3 is 0.1λ-0.2λ.

[0060] Alternatively, if Figure 1 and Figure 4 As shown, the centers of the main vibrator 112 and the plurality of guide vibrators 113 are on the same straight line.

[0061] Alternatively, if Figure 1 and Figure 4 As shown, along the first direction X, the diameter of each guide vibrator 113 gradually decreases.

[0062] Alternatively, if Figure 1 and Figure 4 As shown, the guide dipole 113 closest to the main dipole 112 is defined as the third dipole 113a, the guide dipole 113 adjacent to the third dipole 113a is defined as the fourth dipole 113b, the guide dipole 113 adjacent to the fourth dipole 113b is defined as the fifth dipole 113c, the center distance between the main dipole 112 and the third dipole 113a is the fifth spacing W5, the center distance between the main dipole 112 and the fourth dipole 113b is the sixth spacing W6, the center distance between the main dipole 112 and the fifth dipole 113c is the seventh spacing W7, the length of the fifth spacing W5 is less than the length of the sixth spacing W6, and the length of the sixth spacing W6 is less than the length of the seventh spacing W7. In this embodiment, the high directivity of the antenna structure can be improved by increasing the spacing between the main dipole 112 and the third dipole 113a, the fourth dipole 113b, and the fifth dipole 113c or changing the number of the guide dipoles 113.

[0063] Optionally, the fifth spacing W5, the sixth spacing W6, and the seventh spacing W7 have a value range of 1 / 8λ to 1 / 4λ. The value range of the fifth spacing W5, the sixth spacing W6, and the seventh spacing W7 is within the range of 1 / 8λ to 1 / 4λ, which can further improve the high directivity of the antenna structure.

[0064] Optionally, the third vibrator 113a has a fourth diameter D4, the fourth vibrator 113b has a fifth diameter D5, the fifth vibrator 113c has a sixth diameter D6, the fourth diameter D4 is greater than the fifth diameter D5, and the fifth diameter D5 is greater than the sixth diameter D6.

[0065] Optionally, the fourth diameter D4, the fifth diameter D5, and the sixth diameter D6 have a value range of 0.05λ to 0.15λ. Within the range of 0.05λ to 0.15λ, the high directivity of the antenna structure can be further improved.

[0066] It is worth mentioning that the number of the guiding vibrators 113 can be freely increased or decreased according to actual needs; the number of the reflecting vibrators 114 is an even number.

[0067] Optionally, the connector 15 of this embodiment includes a connector seat 151 and a conductive rod 152, the end of the conductive rod 152 is fixed to the connector seat 151, the connector seat 151 is fixed to the ground layer 13, the trunk of the conductive rod 152 is arranged in the supporting layer 12, and the third end of the conductive rod 152 away from the connector seat 151 is connected to the center of the main oscillator 112.

[0068] Optionally, the main oscillator 112 is also electrically connected to the ground layer 13 via a connecting rod assembly 14. In this embodiment, the main oscillator 112 is electrically connected to the ground layer 13 via a double interconnect structure (joint 15 and a connecting rod assembly 14), which can improve the overall bandwidth and coverage of the antenna structure.

[0069] Optionally, the vertical distance between the center line of the joint 15 and the center line of the connecting rod assembly 14 is an eighth spacing W8, and the value range of the eighth spacing W8 is 0.02λ to 0.04λ. In this embodiment, the value range of the eighth spacing W8 is within the range of 0.02λ to 0.04λ, which can further improve the overall bandwidth and coverage of the antenna structure.

[0070] Optionally, the antenna structure further includes a sleeve 16, which is disposed in the support layer 12, the sleeve 16 is disposed corresponding to the main oscillator 112, the sleeve 16 is disposed adjacent to the conductive rod 152, and the connecting rod assembly 14 is disposed in the sleeve 16. In this embodiment, the sleeve 16 can isolate the connecting rod assembly 14 from the joint 15 to avoid mutual interference between the two, which is beneficial to improving the working performance of the antenna.

[0071] Optionally, the sleeve 16 is made of high temperature resistant insulating materials such as polytetrafluoroethylene and nylon, but is not limited thereto.

[0072] Optionally, the third vibrator 113a is electrically connected to the ground layer 13 through two connecting rod assemblies 14, one of the connecting rod assemblies 14 is connected to the center of the third vibrator 113a, and the centerline distance between the two connecting rod assemblies 14 is a ninth spacing W9, and the value range of the ninth spacing W9 is 0.02λ~0.04λ. In this embodiment, the value range of the ninth spacing W9 is within the range of 0.02λ~0.04λ, which can further improve the overall bandwidth and coverage of the antenna structure.

[0073] Optionally, the fourth oscillator 113b is electrically connected to the ground layer 13 through two connecting rod assemblies 14, one of the connecting rod assemblies 14 is connected to the center of the fourth oscillator 113b, and the centerline distance between the two connecting rod assemblies 14 is the tenth spacing W10, and the value range of the tenth spacing W10 is 0.02λ~0.04λ. In this embodiment, the value range of the tenth spacing W10 is within the range of 0.02λ~0.04λ, which can further improve the overall bandwidth and coverage of the antenna structure.

[0074] Optionally, the fifth oscillator 113c is electrically connected to the ground layer 13 through two connecting rod assemblies 14, one of the connecting rod assemblies 14 is connected to the center of the fifth oscillator 113c, and the centerline distance between the two connecting rod assemblies 14 is the eleventh spacing W11, and the value range of the eleventh spacing W11 is 0.02λ~0.04λ. In this embodiment, the value range of the eleventh spacing W11 is within the range of 0.02λ~0.04λ, which can further improve the overall bandwidth and coverage of the antenna structure.

[0075] Optionally, each connecting rod assembly 14 includes an interconnecting rod 143, one end of the interconnecting rod 143 of each connecting rod assembly 14 is respectively welded to the main oscillator 112, each reflection oscillator 114 and each guide oscillator 113, and the other end of the interconnecting rod 143 of each connecting rod assembly 14 is welded to the ground layer 13. In this embodiment, the interconnecting rod 143 is made of metal material, such as brass, aluminum alloy, etc., but is not limited thereto.

[0076] Optionally, a first welding head 1431 and a second welding head 1432 are respectively fixed at both ends of the interconnection rod 143, the first welding head 1431 is welded to the main oscillator 112, each reflection oscillator 114 and each guide oscillator 113, the second welding head 1432 is welded to the ground layer 13, and the outer diameter of the first welding head 1431 and / or the second welding head 1432 is larger than the outer diameter of the interconnection rod 143.

[0077] Optionally, the size of the antenna structure of the present application is 200 mm×120 mm×20 mm, but is not limited thereto.

[0078] Figure 5 is a coordinate diagram of the return loss of the antenna structure tested in the first embodiment of the present invention, Figure 6 is a coordinate diagram of the antenna structure gain test of the first embodiment of the present invention, Figure 5 The ordinate is the return loss, and the abscissa is the frequency; Figure 6 The ordinate is the antenna gain, and the abscissa is the frequency; the antenna structure of the present application designs the sizes of the reflecting oscillator 114, the directing oscillator 113, and the main oscillator 112, designs the vertical distance between the center of the main oscillator 112 and the line connecting the centers of the two first oscillators 114a to be the third spacing W3, the vertical distance between the center of the main oscillator 112 and the line connecting the centers of the two second oscillators 114b to be the fourth spacing W4, designs the center distances between the center of the main oscillator 112 and the third oscillator 113a, the fourth oscillator 113b, and the fifth oscillator 113c (the fifth spacing W5, the sixth spacing W6, and the seventh spacing W7), and designs the main oscillator 112 and the ground layer 13, and the directing oscillator 113 and the ground layer 13 to adopt a double interconnection structure design, so as to meet the requirements that the designed antenna has high gain, high directivity and an overall wide coverage range. For example, the resonant frequency of the antenna structure is -10dB and the bandwidth is 1.3GHz to 1.5GHz; the resonant frequency of the antenna is 1.4GHz; the weight of the antenna unit is 40g; the advantages of the antenna structure of the present application are: the antenna is small in size, light in weight, and has high gain, and it works stably in the L band (1.3GHz to 1.5GHz), has a relatively wide bandwidth, a large beam coverage area, and a maximum gain of 6.1dB within the frequency band.

[0079] Optionally, the reflective vibrator 114, the directing vibrator 113, and the main vibrator 112 of the present invention may be circular, rectangular, or polygonal, and may be freely designed according to actual needs.

[0080] It is worth mentioning that the antenna structure of this embodiment can also adopt the connecting rod assembly 14 of the second embodiment to realize mechanical assembly instead of welding, solve the problem of easy detachment of welding points, and ensure the stable working performance of the antenna structure.

[0081] Optionally, the support layer 12 is made of a flexible material that enables the antenna structure to be flexibly bent.

[0082] Optionally, the flexible material includes polyimide aerogel and aramid aerogel.

[0083] Optionally, the radiation layer 11 includes a first insulating pad 111 and a plurality of vibrators (including a main vibrator 112 , a guide vibrator 113 and a reflective vibrator 114 ) disposed on the first insulating pad 111 , and the first insulating pad 111 is a flexible polyimide film or a flexible PDMS film.

[0084] Optionally, the ground layer 13 includes a second insulating pad and a circuit layer disposed on the second insulating pad, and the second insulating pad is a flexible polyimide film or a flexible PDMS film.

[0085] It is worth mentioning that the radiation layer 11, the ground layer 13 and the support layer 12 of the antenna structure of the present application are made of different flexible materials. The radiation layer 11 and the ground layer 13 are bonded to the support layer 12 by flexible glue, which can not only ensure the stability of the antenna patch, but also make the antenna as a whole flexible and deformable, and can also reduce the overall surface density and weight of the antenna.

[0086] Second embodiment

[0087] Figure 7 is a schematic diagram of the split structure of the antenna structure of the second embodiment of the present invention, Figure 8 is a schematic diagram of a top view of an antenna structure according to a second embodiment of the present invention, Fig. 9 is a schematic diagram of the split structure of the antenna structure of the second embodiment of the present invention, Fig.10 yes Fig. 9 Please refer to the partial enlarged structural diagram of the antenna structure shown in Figures 7 to 10 The antenna structure of this embodiment is substantially the same as that of the first embodiment, except that the connecting rod assembly is different.

[0088] Optionally, the connecting rod assembly 14 includes a connecting rod 141 and two first locking members 142, the trunk of the connecting rod 141 is arranged in the supporting layer 12, the first end of the connecting rod 141 is arranged through the radiation layer 11, the second end of the connecting rod 141 is arranged through the ground layer 13, and the two first locking members 142 are detachably connected to the first end and the second end respectively; when the antenna structure is not needed, the two first locking members 142 can be removed from the connecting rod 141, and then the connecting rod 141 can be pulled out; when the antenna structure is needed, the connecting rod 141 is inserted into the supporting layer 12, and then the two first locking members 142 are respectively connected to the first end and the second end of the connecting rod 141.

[0089] The radiation layer 11 and the support layer 12 of the antenna structure of the present invention are vertically interconnected through the connecting rod assembly 14, and the two first locking members 142 are detachably connected to the first end and the second end respectively; the antenna structure of the present application adopts a mechanical assembly method instead of welding to solve the problem that the welding point is easy to fall off, and can ensure the stable working performance of the antenna structure; and the antenna structure of the present application is easy to disassemble and use. When the two first locking members 142 are connected to the connecting rod 141, the length of the connecting rod 141 will not change with the local deformation of the support layer 12, which can ensure that the height of the feeding point of the radiation layer 11 and / or the ground layer 13 remains unchanged, and can further improve the working stability of the antenna structure.

[0090] Alternatively, if Figure 7 and Fig. 9 As shown, the support layer 12 is provided with at least one through hole 102 penetrating the upper surface and the lower surface, and the trunk of the connecting rod 141 is arranged in the through hole 102 .

[0091] Optionally, at least one clamping assembly is provided on the supporting layer 12, and the clamping assembly is arranged corresponding to the connecting rod assembly 14. The clamping assembly includes two first clamping members 121, wherein the bottom end of one of the first clamping members 121 is arranged on the upper surface of the supporting layer 12, and the top end thereof is arranged through the radiation layer 11, and the bottom end of the other first clamping member 121 is arranged on the lower surface of the supporting layer 12, and the top end thereof is arranged through the ground layer 13, the first end and the second end are respectively arranged in the two first clamping members 121, and the two first locking members 142 cooperate with the two first clamping members 121 to respectively lock the first end and the second end.

[0092] Optionally, Fig.11 is a schematic structural diagram of the first clamping member of the first embodiment of the present invention, as shown Figure 7 , Fig. 9 and Fig.11 As shown, the first clamping member 121 is provided with a first mounting hole 104, and the first clamping member 121 includes at least two first clamping arms 1211, and the plurality of first clamping arms 1211 are arranged at intervals around the first mounting hole 104, and the first end and the second end are respectively installed in the first mounting holes 104 of the two first clamping members 142, and the first locking member 142 is connected to the first clamping member 121 and enables each first clamping arm 1211 to hold the connecting rod 141. In this embodiment, the first clamping member 121 includes three first clamping arms 1211, and the three first clamping arms 1211 are arranged at intervals around the first mounting hole 104.

[0093] Optionally, the connecting rod 141 , the first clamping member 121 , and the first locking member 142 are all made of metal materials, such as copper, aluminum, etc., but not limited thereto.

[0094] Optionally, the outer side of each first clamping arm 1211 is provided with a first external thread (not shown), and the inner side of the first locking member 142 is provided with a first internal thread (not shown), and the first locking member 142 cooperates with the first external thread to realize that each first clamping arm 1211 holds the connecting rod 141. In this embodiment, the first locking member 142 is, for example, a nut, and rotating the first locking member 142 along the thread direction can gradually squeeze each first clamping arm 1211 so that it can hold the connecting rod 141, which can effectively prevent the first locking member 142 from being separated from the connecting rod 141; rotating the first locking member 142 against the thread direction can make the first locking member 142 separate from each first clamping arm 1211, and the connecting rod 141 can be removed at this time. The present application adopts a threaded connection method to thread the first clamping member 121 and the first locking member 142, which is convenient for disassembly and installation.

[0095] In other embodiments, the outer walls of the first end and the second end of the connecting rod 141 are provided with external threads, and the first locking member 142 is detachably connected by cooperating with the external thread of the connecting rod 141 through the first internal thread.

[0096] Optionally, Fig.12 FIG. 1 is a schematic diagram of a partially enlarged structure of a support layer according to a first embodiment of the present invention. Fig. 9 , Fig.11 and Fig.12 As shown, the first clamping member 121 also includes a first base 1212, an end of each first clamping arm 1211 is fixed on the first base 1212, and the first base 1212 is arranged on the supporting layer 12; at least one first through hole 101 is provided on the radiation layer 11 and the ground layer 13, and each first clamping arm 1211 extends out from the first through hole 101, the radiation layer 11 covers the first base 1212 on the upper surface of the supporting layer 12, and the first base 1212 on the upper surface is fixed to the supporting layer 12 through the radiation layer 11, and the ground layer 13 covers the first base 1212 on the lower surface of the supporting layer 12, and the first base 1212 on the lower surface is fixed to the supporting layer 12 through the ground layer 13. In this embodiment, the upper surface and the lower surface of the supporting layer 12 are both provided with a first groove 103, the first groove 103 is connected to the through hole 102, and the first base 1212 is arranged in the first groove 103, so as to prevent the radiation layer 11 from being higher than other areas at the first base 1212 and to prevent the ground layer 13 from being higher than other areas at the first base 1212, thereby ensuring the working performance of the antenna structure.

[0097] Alternatively, if Fig. 9 and Fig.11 As shown, the first base 1212 is in a sheet shape, a first boss 1213 is fixed to the middle of the first base 1212 , and ends of the plurality of first clamping arms 1211 are fixed to the first boss 1213 .

[0098] Optionally, the first mounting hole 104 passes through the first base 1212 and the first boss 1213, and the first end or the second end of the connecting rod 141 can extend through the first base 1212 to the multiple first clamping arms 1211, and the multiple first clamping arms 1211 are arranged on the peripheral side of the first end or the second end.

[0099] Optionally, the first through holes 101 on the radiation layer 11 and the ground layer 13 are both arranged corresponding to the through holes 102 of the support layer 12 .

[0100] Alternatively, if Figure 7 and Fig. 9As shown, the antenna structure also includes a connector 15, which includes a connector seat 151, a conductive rod 152, and a second locking member 153. The end of the conductive rod 152 is fixed to the connector seat 151, the connector seat 151 is fixed to the ground layer 13, the connector seat 151 is at least partially disposed in the support layer 12, the trunk of the conductive rod 152 is disposed in the support layer 12, the third end of the conductive rod 152 away from the connector seat 151 passes through the radiation layer 11, and the second locking member 153 is detachably connected to the third end. In this embodiment, the connector 15 is, for example, an SMA connector 15, but is not limited thereto.

[0101] Optionally, the second locking member 153 has the same structure as the first locking member 142 .

[0102] Optionally, the support layer 12 is provided with a second clamping piece 122, the bottom end of the second clamping piece 122 is arranged on the upper surface of the support layer 12, the top end thereof passes through the radiation layer 11, and the third end is arranged in the second clamping piece 122, and the second locking piece 153 cooperates with the second clamping piece 122 to lock the conductive rod 152.

[0103] Alternatively, if Figure 7 and Fig. 9 As shown, the second clamping member 122 is provided with a second mounting hole, the second clamping member 122 includes at least two second clamping arms, a plurality of second clamping arms are arranged around the second mounting hole at intervals, the third end is installed in the second mounting hole, and the second locking member 153 is connected to the second clamping member 122 and enables each second clamping arm to hold the conductive rod 152. In this embodiment, the second clamping member 122 includes three second clamping arms, and the three second clamping arms are arranged around the second mounting hole at intervals.

[0104] Optionally, the conductive rod 152 , the second clamping member 122 , and the second locking member 153 are all made of metal materials, such as copper, aluminum, etc., but not limited thereto.

[0105] Optionally, the outer side of each second clamping arm is provided with a second external thread, and the inner side of the second locking member 153 is provided with a second internal thread. The second locking member 153 cooperates with the second external thread to realize that each second clamping arm holds the conductive rod 152. In this embodiment, the second locking member 153 is, for example, a nut. Rotating the second locking member 153 along the thread direction can gradually squeeze each second clamping arm so that it can hold the conductive rod 152, which can effectively prevent the second locking member 153 from being separated from the conductive rod 152; rotating the second locking member 153 against the thread direction can cause the second locking member 153 to be separated from each second clamping arm, and the connector 15 can be disassembled at this time. The present application adopts a threaded connection method to thread the second clamping member 122 and the second locking member 153, which is convenient for disassembly and installation.

[0106] In other embodiments, the outer wall of the third end of the conductive rod 152 is provided with an external thread, and the second locking member 153 cooperates with the external thread of the conductive rod 152 through the second internal thread to achieve a detachable connection.

[0107] Optionally, the second clamping member 122 further includes a second base, the end of each second clamping arm is fixed on the second base, and the second base is arranged on the upper surface of the support layer 12; the radiation layer 11 is provided with a second through hole, each second clamping arm extends from the second through hole, the radiation layer 11 covers the second base, and the second base is fixed on the support layer 12 through the radiation layer 11. In this embodiment, a second sinking groove is provided on the upper surface of the support layer 12, the second sinking groove is connected to a through hole 102, and the second base is arranged in the second sinking groove, so as to prevent the radiation layer 11 from being higher than other areas at the second base, and to ensure the working performance of the antenna structure.

[0108] Alternatively, if Fig. 9 and Fig.11 As shown, the second base is in the shape of a sheet, a second boss is fixed in the middle of the second base, and ends of a plurality of second clamping arms are fixed on the second boss.

[0109] Optionally, the second mounting hole passes through the second base and the second boss, and the third end of the conductive rod 152 can extend through the second base to the plurality of second clamping arms, and in this case, the plurality of second clamping arms are arranged on the peripheral side of the third end.

[0110] Optionally, the second through hole of the radiation layer 11 is arranged corresponding to a through hole 102 of the support layer 12 .

[0111] Alternatively, if Figure 7 and Figure 8 As shown, the radiation layer 11 includes a first insulating pad 111 and a main oscillator 112 , a plurality of guide oscillators 113 and a plurality of reflection oscillators 114 arranged on the first insulating pad 111 .

[0112] Moreover, the present application pre-buries the first base 1421b of the first clamping member 1421 in the supporting layer 12, and when the antenna is used, vertical interconnection assembly is performed, eliminating welding, facilitating disassembly, and simplifying the assembly process.

[0113] The present invention also relates to an intelligent terminal, comprising the above antenna structure.

[0114] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An antenna structure, characterized in that: The invention comprises a radiation layer, a support layer, a ground layer and a plurality of connecting rod assemblies, wherein the radiation layer is arranged on the upper surface of the support layer, the ground layer is arranged on the lower surface of the support layer, at least one main vibrator, a plurality of reflection vibrators and a plurality of guiding vibrators are arranged on the radiation layer, and the main vibrator, each of the reflection vibrators and each of the guiding vibrators are electrically connected to the ground layer through at least one of the connecting rod assemblies.

2. The antenna structure according to claim 1, characterized in that: Include any of the following: A first direction and a second direction perpendicular to each other are defined, a plurality of the reflection vibrators are located on one side of the main vibrator, a plurality of the guiding vibrators are located on the other side opposite to the main vibrator, the main vibrator and the plurality of the guiding vibrators are sequentially arranged at intervals along the first direction, two of the reflection vibrators arranged at intervals along the second direction are combined into a vibrator unit, a plurality of the reflection vibrators are combined into a plurality of the vibrator units, and the plurality of the vibrator units are sequentially arranged at intervals along a direction opposite to the first direction; The two reflective vibrators of each vibrator unit have the same diameter, and the diameter of the reflective vibrator of each vibrator unit gradually increases along a direction opposite to the first direction; The vibrator unit closest to the main vibrator is defined as a first unit, and the vibrator unit adjacent to the first unit is defined as a second unit, the two reflection vibrators of the first unit have a first diameter, the center distance between the two reflection vibrators of the first unit is a first spacing, the two reflection vibrators of the second unit have a second diameter, the center distance between the two reflection vibrators of the second unit is a second spacing, the first diameter is smaller than the second diameter, the first spacing is equal to the second diameter, and the second spacing is larger than the second diameter; The value range of the first diameter, the second diameter, and the second spacing is 0.1λ to 0.25λ, where λ is the wavelength of the designed antenna.

3. The antenna structure according to claim 2, characterized in that: Include any of the following: The vertical distance between the center of the main vibrator and the line connecting the centers of the two reflective vibrators of the first unit is a third distance, and the vertical distance between the center of the main vibrator and the line connecting the centers of the two reflective vibrators of the second unit is a fourth distance, and the third distance is smaller than the fourth distance; The third spacing is 0.3 to 0.5 times the fourth spacing, and the fourth spacing is 1 / 4λ; The main oscillator has a third diameter, and the third diameter ranges from 0.1λ to 0.2λ.

4. The antenna structure according to claim 2, characterized in that: Include any of the following: The centers of the main vibrator and the plurality of guide vibrators are on the same straight line; Along the first direction, the diameter of each of the guide vibrators gradually decreases; The guiding vibrator closest to the main vibrator is defined as the third vibrator, the guiding vibrator adjacent to the third vibrator is defined as the fourth vibrator, the guiding vibrator adjacent to the fourth vibrator is defined as the fifth vibrator, the center distance between the main vibrator and the third vibrator is the fifth spacing, the center distance between the main vibrator and the fourth vibrator is the sixth spacing, the center distance between the main vibrator and the fifth vibrator is the seventh spacing, the fifth spacing is smaller than the sixth spacing, and the sixth spacing is smaller than the seventh spacing; The fifth spacing, the sixth spacing, and the seventh spacing have a value range of 1 / 8λ to 1 / 4λ; The third vibrator has a fourth diameter, the fourth vibrator has a fifth diameter, and the fifth vibrator has a sixth diameter. The fourth diameter, the fifth diameter, and the sixth diameter have a value range of 0.05λ to 0.15λ.

5. The antenna structure according to claim 4, characterized in that: Include any of the following: The third vibrator is electrically connected to the ground layer through two connecting rod assemblies, one of the connecting rod assemblies is connected to the center of the third vibrator, and the center line distance between the two connecting rod assemblies is a ninth spacing, and the value range of the ninth spacing is 0.02λ~0.04λ; The fourth vibrator is electrically connected to the ground layer through two connecting rod assemblies, one of the connecting rod assemblies is connected to the center of the fourth vibrator, the center line distance between the two connecting rod assemblies is the tenth spacing, and the value range of the tenth spacing is 0.02λ~0.04λ; The fifth vibrator is electrically connected to the ground layer through the two connecting rod assemblies, one of the connecting rod assemblies is connected to the center of the fifth vibrator, the center line distance between the two connecting rod assemblies is the eleventh spacing, and the value range of the eleventh spacing is 0.02λ~0.04λ.

6. The antenna structure according to any one of claims 1 to 5, characterized in that: Include any of the following: The antenna structure also includes a joint, the joint includes a joint seat and a conductive rod, the end of the conductive rod is fixed to the joint seat, the joint seat is fixed to the ground layer, the trunk of the conductive rod is arranged in the supporting layer, and the third end of the conductive rod away from the joint seat is connected to the center of the main oscillator; The main vibrator is also electrically connected to the ground layer through a connecting rod assembly; A vertical distance between the center line of the joint and the center line of the connecting rod assembly is an eighth spacing, and a value range of the eighth spacing is 0.02λ to 0.04λ.

7. The antenna structure according to claim 6, characterized in that: The antenna structure further includes a sleeve, which is disposed in the supporting layer, the sleeve is disposed corresponding to the main oscillator, the sleeve is disposed adjacent to the conductive rod, and the connecting rod assembly is at least partially disposed in the sleeve.

8. The antenna structure according to any one of claims 1 to 5, characterized in that: Include any of the following: Each of the connecting rod assemblies comprises an interconnecting rod, one end of the interconnecting rod of each of the connecting rod assemblies is respectively welded to the main vibrator, each of the reflecting vibrators and each of the guiding vibrators, and the other end of the interconnecting rod of each of the connecting rod assemblies is welded to the ground layer; A first welding head and a second welding head are respectively fixed at both ends of the interconnection rod, the first welding head is welded to the main oscillator, each of the reflection oscillators and each of the guide oscillators, and the second welding head is welded to the ground layer. The outer diameter of the first welding head and / or the second welding head is larger than the outer diameter of the interconnection rod.

9. The antenna structure according to any one of claims 1 to 5, characterized in that: Include any of the following: The support layer is made of a flexible material that enables the antenna structure to be flexibly bent; The flexible material includes polyimide aerogel and aramid aerogel; The radiation layer includes a first insulating pad and a plurality of vibrators arranged on the first insulating pad, wherein the first insulating pad is a flexible polyimide film or a flexible PDMS film; The ground layer includes a second insulating pad and a circuit layer arranged on the second insulating pad, and the second insulating pad is a flexible polyimide film or a flexible PDMS film.

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

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