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 at least one connecting rod assembly, 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 and the ground layer are electrically connected through the connecting rod assembly, and the connecting rod assembly comprises a connecting rod and two first locking members. The trunk of the connecting rod is arranged in the supporting layer, the first end of the connecting rod penetrates through the radiation layer, the second end of the connecting rod penetrates through the ground layer, and the two first locking pieces are detachably connected to the first end and the second end respectively. According to the antenna structure, a mechanical assembly mode is adopted to replace welding, and the problem that welding points are prone to falling off is solved.

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] Traditional antennas are made of metal conductors, which have certain rigidity and weight, and are not conducive to the application of flexible mechanisms. In contrast, flexible antennas have the advantages of light weight, flexibility, easy manufacturing and application, and are easier to conform to the smart device platform. In recent years, research on flexible antennas has mainly focused on microstrip patch antennas, and often uses flexible substrates for antenna manufacturing. Usually, a single flexible substrate is used as the substrate and profile support layer, which results in a high surface density of the flexible antenna; secondly, the installation of the vertical interconnection parts of the flexible antenna is often welded. For flexible antennas with multiple vertical interconnection structures, welding is used to fix the vertical interconnection structure, which will cause the solder joints to fall off easily when the flexible antenna is used, resulting in performance failure. Summary of the invention

[0003] In view of this, the present invention provides an antenna structure, which adopts a mechanical assembly method instead of welding to solve the problem that the welding point is easy to fall off.

[0004] An antenna structure includes a radiation layer, a support layer, a ground layer and at least one connecting rod assembly, 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, the radiation layer and the ground layer are electrically connected through the connecting rod assembly, the connecting rod assembly includes a connecting rod and two first locking members, the trunk of the connecting rod is arranged in the support layer, the first end of the connecting rod is arranged through the radiation layer, and the second end of the connecting rod is arranged through the ground layer, and the two first locking members are detachably connected to the first end and the second end respectively.

[0005] In an embodiment of the present invention, at least one clamping assembly is provided on the above-mentioned supporting layer, and the clamping assembly is arranged corresponding to the connecting rod assembly. The clamping assembly includes two first clamping members, wherein the bottom end of one of the first clamping members is arranged on the upper surface of the supporting layer, and the top end thereof is arranged through the radiation layer, and the bottom end of the other first clamping member is arranged on the lower surface of the supporting layer, and the top end thereof is arranged through the ground layer, the first end and the second end are respectively arranged in the two first clamping members, and the two first locking members cooperate with the two first clamping members to respectively lock the first end and the second end.

[0006] In an embodiment of the present invention, the above-mentioned first clamping member is provided with a first mounting hole, the first clamping member includes at least two first clamping arms, a plurality of first clamping arms are arranged around the first mounting hole at intervals, the first end and the second end are respectively installed in the first mounting holes of the two first clamping members, the first locking member is connected to the first clamping member and enables each first clamping arm to clamp the connecting rod.

[0007] In an embodiment of the present invention, a first external thread is provided on the outer side of each first clamping arm, and a first internal thread is provided on the inner side of the first locking member. The first locking member cooperates with the first external thread to enable each first clamping arm to clamp the connecting rod.

[0008] In an embodiment of the present invention, the above-mentioned first clamping member also includes a first base, the end of each first clamping arm is fixed on the first base, and the first base is arranged on the supporting layer; at least one first through hole is provided on the radiation layer and the ground layer, and each first clamping arm extends from the first through hole, the radiation layer covers the first base on the upper surface of the supporting layer, and the ground layer covers the first base on the lower surface of the supporting layer.

[0009] In an embodiment of the present invention, the above-mentioned antenna structure also includes a connector, which includes a connector seat, a conductive rod and a second locking member, 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, the third end of the conductive rod away from the connector seat is arranged through the radiation layer, and the second locking member is detachably connected to the third end.

[0010] In an embodiment of the present invention, the support layer is provided with a second clamping member, the bottom end of the second clamping member is arranged on the upper surface of the support layer, the top end thereof passes through the radiation layer, the third end is arranged in the second clamping member, and the second locking member cooperates with the second clamping member to lock the conductive rod

[0011] In an embodiment of the present invention, the above-mentioned second clamping member is provided with a second mounting hole, the second clamping member includes at least two second clamping arms, a plurality of second clamping arms are arranged at intervals around the second mounting hole, the third end is installed in the second mounting hole, and the second locking member is connected to the second clamping member and enables each second clamping arm to clamp the conductive rod.

[0012] In an embodiment of the present invention, a second external thread is provided on the outer side of each second clamping arm, and a second internal thread is provided on the inner side of the second locking member. The second locking member cooperates with the second external thread through the second internal thread to enable each second clamping arm to clamp the conductive rod.

[0013] In an embodiment of the present invention, the above-mentioned second clamping member also 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 supporting layer; a second through hole is provided on the radiation layer, and each second clamping arm extends from the second through hole, and the radiation layer covers the second base.

[0014] In an embodiment of the present invention, the above-mentioned radiation layer includes a first insulating pad and a main oscillator, a plurality of guide oscillators and a plurality of reflection oscillators arranged on the first insulating pad, the main oscillator is electrically connected to the joint and one of the connecting rod assemblies, respectively, each of the guide oscillators is electrically connected to two of the connecting rod assemblies, respectively, and each of the reflection oscillators is electrically connected to one of the connecting rod assemblies.

[0015] In an embodiment of the present invention, the above-mentioned radiation layer includes three of the guiding vibrators and four of the reflecting vibrators, and the three guiding vibrators are on the same straight line with the center of the main vibrator; a first direction and a second direction perpendicular to each other are defined, and two of the reflecting vibrators arranged at intervals along the second direction are combined into one vibrator unit, and four of the reflecting vibrators are combined into two vibrator units, and the two vibrator units are arranged at intervals along the first direction.

[0016] In an embodiment of the present invention, the support layer is made of a flexible material that enables the antenna structure to be flexibly bent.

[0017] In an embodiment of the present invention, the flexible material includes polyimide aerogel and aramid aerogel.

[0018] 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.

[0019] 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.

[0020] The present invention also relates to an intelligent terminal, comprising the above antenna structure.

[0021] The radiation layer and the support layer of the antenna structure of the present invention are vertically interconnected through a connecting rod assembly, and the two first locking members 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 are connected to the connecting rod, the length of the connecting rod will not change with the local deformation of the supporting layer, which can ensure that the height of the feeding point of the radiation layer and / or the ground layer remains unchanged, and can further improve the working stability of the antenna structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the split structure of the antenna structure of the first embodiment of the present invention.

[0023] Figure 21 is a schematic diagram of a top view of the antenna structure of the first embodiment of the present invention.

[0024] Figure 3 It is a schematic diagram of the split structure of the antenna structure of the first embodiment of the present invention.

[0025] Figure 4 yes Figure 3 A locally enlarged schematic diagram of the antenna structure is shown.

[0026] Figure 5 Schematic diagram of the structure of the first clamping member according to the first embodiment of the present invention.

[0027] Figure 6 It is a schematic diagram of a partially enlarged structure of the support layer of the first embodiment of the present invention.

[0028] Figure 7 It is a schematic diagram of the split structure of the antenna structure of the second embodiment of the present invention.

[0029] Figure 8 It is a schematic cross-sectional structural diagram of the antenna structure of the second embodiment of the present invention.

[0030] Fig. 9 yes Figure 8 A locally enlarged schematic diagram of the antenna structure is shown.

[0031] Fig.10 1 is a schematic diagram of a top view of the antenna structure of the second embodiment of the present invention.

[0032] Fig.11 It is a coordinate diagram of the return loss of the antenna structure tested according to the second embodiment of the present invention.

[0033] Fig.12 It is a coordinate diagram of the antenna structure gain test of the second embodiment of the present invention. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] First embodiment

[0039] 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 diagram of a top view of the antenna structure of the first embodiment of the present invention, Figure 3 is a schematic diagram of the split structure of the antenna structure of the first embodiment of the present invention, Figure 4 yes Figure 3 Please refer to the partial enlarged structural diagram of the antenna structure shown in Figures 1 to 4 The antenna structure includes a radiation layer 11, a support layer 12, a ground layer 13 and at least one connecting rod assembly 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. The radiation layer 11 and the ground layer 13 are electrically connected through the connecting rod assembly 14. 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 support layer 12, the first end of the connecting rod 141 is arranged through the radiation layer 11, and the second end of the connecting rod 141 is arranged through the ground layer 13. 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 is pulled out; when the antenna structure needs to be used, the connecting rod 141 is inserted into the support layer 12, and then the two first locking members 142 are connected to the first end and the second end of the connecting rod 141 respectively.

[0040] 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.

[0041] Optionally, the antenna structure as a whole can be flexibly bent and deformed.

[0042] 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.

[0043] Alternatively, if Figure 1 and Figure 3 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 .

[0044] 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.

[0045] Optionally, Figure 5 is a schematic structural diagram of the first clamping member of the first embodiment of the present invention, as shown Figure 1 , Figure 3 and Figure 5 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] Optionally, Figure 6 FIG. 1 is a schematic diagram of a partially enlarged structure of a support layer according to a first embodiment of the present invention. Figure 3 , Figure 5 and Figure 6 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.

[0050] Alternatively, if Figure 3 and Figure 5As 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 .

[0051] 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.

[0052] 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 .

[0053] Alternatively, if Figure 1 and Figure 3 As 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.

[0054] Optionally, the second locking member 153 has the same structure as the first locking member 142 .

[0055] 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.

[0056] Alternatively, if Figure 1 and Figure 3 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] Alternatively, if Figure 3 and Figure 5 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.

[0062] 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.

[0063] Optionally, the second through hole of the radiation layer 11 is arranged corresponding to a through hole 102 of the support layer 12 .

[0064] Alternatively, if Figure 1 and Figure 2 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 .

[0065] Optionally, the support layer 12 is made of a flexible material that enables the antenna structure to be flexibly bent.

[0066] Optionally, the flexible material includes polyimide aerogel and aramid aerogel.

[0067] Optionally, the radiation layer 11 includes a first insulating pad 111 and a plurality of vibrators (including a main vibrator, a guiding vibrator and a reflecting vibrator) arranged on the first insulating pad 111, and the first insulating pad 111 is a flexible polyimide film or a flexible PDMS film.

[0068] 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.

[0069] 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 adhesive, 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. In addition, the first base 1212 of the first clamping member 121 is pre-buried in the support layer 12 in the present application, and when the antenna is used, it is vertically interconnected and assembled, eliminating welding, making disassembly convenient and the assembly process simple.

[0070] Second embodiment

[0071] 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 cross-sectional view of an antenna structure according to a second embodiment of the present invention, Fig. 9 yes Figure 8 Please refer to the partial enlarged structural diagram of the antenna structure shown in Figures 7 to 9 The antenna structure of this embodiment is substantially the same as that of the first embodiment, except that the structure of the connecting rod assembly 14 specifically defines the spacing and size of the main oscillator 112 , the reflection oscillator 114 and the guide oscillator 113 .

[0072] Optionally, see Figures 7 to 9 The main oscillator 112 , each reflection oscillator 114 and each guide oscillator 113 are electrically connected to the ground layer 13 through at least one connecting rod assembly 14 .

[0073] 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.

[0074] Optionally, Fig.10 is a schematic diagram of a top view of the antenna structure of the second embodiment of the present invention. Fig.10 As 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.

[0075] Alternatively, if Figure 7 and Fig.10 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.

[0076] Optionally, 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, the center distance between the two reflection vibrators 114 of the first unit is the first spacing W1, the two reflection vibrators 114 of the second unit have a second diameter D2, the center distance between the two reflection vibrators 114 of the second unit is the 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.

[0077] 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.

[0078] Alternatively, if Fig.10As 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.

[0079] 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.

[0080] Optionally, the main oscillator 112 has a third diameter D3, and the third diameter D3 is 0.1λ-0.2λ.

[0081] Alternatively, if Figure 7 and Fig.10 As shown, the centers of the main vibrator 112 and the plurality of guide vibrators 113 are on the same straight line.

[0082] Alternatively, if Figure 7 and Fig.10 As shown, along the first direction X, the diameter of each director vibrator 113 gradually decreases.

[0083] Alternatively, if Figure 7 and Fig.10 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] Optionally, the sleeve 16 is made of high temperature resistant insulating materials such as polytetrafluoroethylene and nylon, but is not limited thereto.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] Optionally, the size of the antenna structure of the present application is 200 mm×120 mm×20 mm, but is not limited thereto.

[0099] Fig.11 is a coordinate diagram of the return loss of the antenna structure tested in the second embodiment of the present invention, Fig.12 is a coordinate diagram of the antenna structure gain test of the second embodiment of the present invention, Fig.11 The ordinate is the return loss, and the abscissa is the frequency; Fig.12 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.

[0100] 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.

[0101] It is worth mentioning that the antenna structure of this embodiment can also adopt the connecting rod assembly 14 of the first embodiment to realize the use of mechanical assembly instead of welding, solve the problem of easy detachment of welding points, and ensure the stable working performance of the antenna structure.

[0102] The present invention also relates to an intelligent terminal, comprising the above antenna structure.

[0103] 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: It includes a radiation layer, a support layer, a ground layer and at least one connecting rod assembly, 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, the radiation layer and the ground layer are electrically connected through the connecting rod assembly, the connecting rod assembly includes a connecting rod and two first locking members, the trunk of the connecting rod is arranged in the support layer, the first end of the connecting rod is arranged through the radiation layer, the second end of the connecting rod is arranged through the ground layer, and the two first locking members are detachably connected to the first end and the second end respectively.

2. The antenna structure according to claim 1, characterized in that: Include any of the following: At least one clamping assembly is disposed on the support layer, and the clamping assembly is disposed corresponding to the connecting rod assembly. The clamping assembly includes two first clamping members, wherein the bottom end of one of the first clamping members is disposed on the upper surface of the support layer, and the top end thereof is disposed through the radiation layer, and the bottom end of the other first clamping member is disposed on the lower surface of the support layer, and the top end thereof is disposed through the ground layer, the first end and the second end are respectively disposed in the two first clamping members, and the two first locking members cooperate with the two first clamping members to respectively lock the first end and the second end; Each of the first clamping members is provided with a first mounting hole, and each of the first clamping members includes at least two first clamping arms, and a plurality of the first clamping arms are arranged around the first mounting hole at intervals, and the first end and the second end are respectively installed in the first mounting holes of the two first clamping members, and the first locking member is connected to the first clamping member and enables each of the first clamping arms to clamp the connecting rod.

3. The antenna structure according to claim 2, characterized in that: The outer side of each of the first clamping arms is provided with a first external thread, the inner side of the first locking member is provided with a first internal thread, and the first locking member cooperates with the first external thread to enable each of the first clamping arms to clamp the connecting rod.

4. The antenna structure according to claim 2, characterized in that: Each of the first clamping members also includes a first base, an end of each of the first clamping arms is fixed on the first base, and the first base is arranged on the supporting layer; at least one first through hole is provided on the radiation layer and the ground layer, and each of the first clamping arms extends from the first through hole, the radiation layer covers the first base on the upper surface of the supporting layer, and the ground layer covers the first base on the lower surface of the supporting layer.

5. The antenna structure according to claim 2, characterized in that: The antenna structure also includes a connector, which includes a connector seat, a conductive rod and a second locking member. The end of the conductive rod is fixed to the connector seat, and the connector seat is fixed to the ground layer. The trunk of the conductive rod is arranged in the supporting layer. The third end of the conductive rod away from the connector seat passes through the radiation layer, and the second locking member is detachably connected to the third end.

6. The antenna structure according to claim 5, characterized in that: Include any of the following: The support layer is provided with a second clamping piece, the bottom end of the second clamping piece is arranged on the upper surface of the support layer, the top end thereof passes through the radiation layer, the third end is arranged in the second clamping piece, and the second locking piece cooperates with the second clamping piece to lock the conductive rod; The second clamping member is provided with a second mounting hole, the second clamping member comprises at least two second clamping arms, a plurality of the second clamping arms are arranged around the second mounting hole at intervals, the third end is installed in the second mounting hole, the second locking member is connected to the second clamping member and enables each of the second clamping arms to hold the conductive rod tightly; The outer side of each second clamping arm is provided with a second external thread, the inner side of the second locking member is provided with a second internal thread, and the second locking member cooperates with the second external thread to enable each second clamping arm to clamp the conductive rod; The second clamping member further comprises 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 supporting layer; The radiation layer is provided with a second through hole, each of the second clamping arms extends from the second through hole, and the radiation layer covers the second base.

7. The antenna structure according to claim 5, characterized in that: The radiation layer includes a first insulating pad and a main oscillator, a plurality of guide oscillators and a plurality of reflection oscillators arranged on the first insulating pad, the main oscillator is electrically connected to the joint and one of the connecting rod assemblies respectively, each of the guide oscillators is electrically connected to two of the connecting rod assemblies respectively, and each of the reflection oscillators is electrically connected to one of the connecting rod assemblies.

8. The antenna structure according to claim 7, characterized in that: The radiation layer includes three guiding vibrators and four reflecting vibrators, and the three guiding vibrators are on the same straight line with the center of the main vibrator; a first direction and a second direction perpendicular to each other are defined, and two reflecting vibrators arranged at intervals along the second direction are combined into one vibrator unit, and four reflecting vibrators are combined into two vibrator units, and the two vibrator units are arranged at intervals along the first direction.

9. The antenna structure according to any one of claims 1 to 8, 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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