Spacing adjuster and log-periodic antenna

Abstract

The invention discloses a spacing adjuster and a log-periodic antenna, and the spacing adjuster comprises two positioning adjusting parts, each positioning adjusting part comprises a fixed part, adjusting rods which are respectively arranged at the two ends of the fixed part in a third direction and are provided with a plurality of second positioning structures, and a positioning part with a through hole, a first positioning structure is arranged on the inner surface, away from the fixing part, in the through hole, the two positioning adjusting pieces are used by relatively rotating by 180 degrees, and an adjusting rod of one of the two positioning adjusting pieces is arranged in the through hole of the other positioning adjusting piece in a penetrating mode and can move in the second direction; and any second positioning structure on the adjusting rod is connected with the corresponding first positioning structure in an inserting manner. According to the interval adjuster, the structure is simple, the use is convenient, the fixation of the interval between the two fixing parts can be realized, the positioning of the gap between the two oscillator arrays is reliable, the interval adjustment of the two fixing parts can be realized, the gap between the two oscillator arrays is adjustable, and the assembling efficiency of the log-periodic antenna is improved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a spacing adjuster and a log-periodic antenna. Background Art

[0002] The logarithmic periodic dipole antenna of the prior art includes two groups of mirror-imaged vibrator arrays, each group of vibrator arrays has a collection line, and the two collection lines are parallel. The radiating unit array is fed by two collection lines, and the spacing between the collection lines affects the impedance of the antenna. Therefore, it is necessary to maintain and adjust the spacing between the collection lines at different positions during production, use spacers of appropriate sizes to place them at suitable positions of the collection lines to maintain the spacing, and then use nylon tie to fix them. In this fixing method, the spacing between the spacers is fixed, and it is necessary to repeatedly adjust the position or select spacers with different spacings, which is extremely inconvenient to adjust and has low production efficiency. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a spacing adjuster with a simple structure and convenient use, which can realize the fixed spacing of two set lines in the second direction, so that the gap between the two vibrator arrays of the logarithmic periodic antenna can be reliably positioned, and can realize the spacing adjustment of the two set lines in the second direction, so that the gap between the two vibrator arrays of the logarithmic periodic antenna can be adjusted, thereby improving the assembly efficiency of the logarithmic periodic antenna.

[0004] The present invention also proposes a logarithmic periodic antenna having the above-mentioned spacing adjuster.

[0005] According to the first aspect of the present invention, a spacing adjuster is used to adjust the gap between two vibrator arrays of a log-periodic antenna, and includes: two positioning adjustment members, each of which includes a fixing portion, an adjustment rod and a positioning portion, the fixing portion is connected to one of the vibrator arrays, the adjustment rod and the positioning portion are respectively arranged at two ends of the fixing portion in a third direction, the positioning portion defines a through hole extending along the first direction, a first positioning structure is provided on the inner surface of the through hole away from the fixing portion, the adjustment rod extends along the second direction and is provided with a plurality of second positioning structures on a side surface away from the fixing portion, and the plurality of second positioning structures are arranged at intervals along the second direction; wherein the two positioning adjustment members are used by rotating 180° relative to each other, the adjustment rod of one of the two positioning adjustment members is inserted into the through hole of the other and is movable along the second direction, so as to plug any one of the second positioning structures on the adjustment rod with the first positioning structure in the corresponding through hole, the first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction.

[0006] According to the spacing adjuster of the present invention, by providing two positioning adjustment members for relative rotation of 180°, and providing a first positioning structure that cooperates with the second positioning structure on the adjustment rod in the through hole, the two fixing parts can be fixed in the second direction by the mutual cooperation between the first positioning structure and the second positioning structure, so that the gap positioning between the two vibrator arrays of the log-periodic antenna is reliable, and the two positioning adjustment members can be pushed to move relative to each other and the first positioning structure can be inserted into different second positioning structures to achieve the spacing adjustment of the two fixing parts in the second direction, so that the gap between the two vibrator arrays of the log-periodic antenna is adjustable. The structure is simple and easy to use, and the assembly efficiency of the log-periodic antenna can be improved.

[0007] According to some embodiments of the present invention, the fixing portion defines a first slot, which extends along the third direction and passes through the fixing portion in the first direction, and the first slot is provided with a first installation notch in the second direction so that the collection line of one of the two vibrator arrays can pass through the first installation notch and be arranged in the first slot.

[0008] According to some embodiments of the present invention, the surface of the first slot opposite to the first installation notch in the second direction is a first limiting surface, and the first limiting surface is recessed in a direction away from the first installation notch to form a first limiting groove for the coaxial cable of the log-periodic antenna to pass through.

[0009] According to some optional embodiments of the present invention, the positioning portion includes a main frame and an adjusting pressure rod, the main frame includes two support ears protruding on the outer end surface of the fixing portion, the two support ears are spaced apart along a first direction, the adjusting pressure rod is arranged between the two support ears, and is fixedly connected to the support ears through a connecting column, the adjusting pressure rod and the main frame jointly define the through hole, and the first positioning structure is arranged on the adjusting pressure rod; wherein the connecting column has a torsional deformation capability, and the adjusting pressure rod has a first movement position and a second movement position relative to the main frame, in the first movement position, the first positioning structure and the fixing portion in the third direction are spaced apart by a first spacing, and the first positioning structure and the second positioning structure are plugged in and matched; in the second movement position, the first positioning structure and the fixing portion in the third direction are spaced apart by a second spacing, the second spacing is greater than the first spacing, the first positioning structure and the second positioning structure are disengaged from the plug-in matching, and the adjusting pressure rod drives the connecting column to torsionally deform.

[0010] According to some optional embodiments of the present invention, the adjusting pressure rod includes a positioning section and a pressing section, the positioning section and the main frame jointly define the through hole, the first positioning structure is arranged on the positioning section, the pressing section is connected to one end of the positioning section away from the first positioning structure in the second direction, and the pressing section extends in the second direction, and the two ends of the positioning section in the first direction are respectively fixedly connected to the corresponding support ears through connecting columns.

[0011] In some optional embodiments of the present invention, the main frame, the adjusting pressure rod and the connecting column are an integral injection-molded part; or, an assembly hole is provided on the positioning section, and a matching hole is provided on the main frame, the assembly hole and the matching hole are opposite to each other in the first direction, the connecting column is passed through the assembly hole and the matching hole, the outer contour of the cross-section of the connecting column is non-circular, the assembly hole is adapted to the outer contour of the connecting column, and the matching hole is adapted to the outer contour of the connecting column.

[0012] The logarithmic periodic antenna according to the embodiment of the second aspect of the present invention includes: a first dipole array, including: a first set of lines and a first dipole, the first set of lines extending along the first direction, the two ends of the first set of lines in the first direction are respectively a first end and a second end, the first dipole is connected to the first set of lines and is arranged in a plurality of intervals along the first direction, and in the direction from the first end to the second end, the sizes of the plurality of first dipoles in the third direction increase sequentially; a second dipole array, including: a second set of lines and a second dipole, the second set of lines extending along the first direction and being arranged opposite to the first set of lines in the second direction, the second dipole is connected to the second A plurality of second vibrators are arranged on an assembly line and are spaced apart along the first direction, and in the direction from the first end to the second end, the sizes of the plurality of second vibrators increase successively in the third direction, and in the first direction, the first vibrators and the second vibrators are alternately arranged, and in the third direction, the first vibrators and the corresponding second vibrators are symmetrically arranged along the central axis of the second assembly line; a coaxial cable, the outer conductor of the coaxial cable is connected to the first assembly line, and the inner conductor of the coaxial cable is connected to the second assembly line; a spacing adjuster according to the above-mentioned first aspect of the present invention, the two positioning adjustment members of the spacing adjuster are respectively connected to the first assembly line and the second assembly line.

[0013] According to the log-periodic antenna of the present invention, through the above-mentioned spacing adjuster, the structure is simple and easy to use, and the gap between the two vibrator arrays of the log-periodic antenna can be reliably positioned, so that the gap between the two vibrator arrays of the log-periodic antenna is adjustable, thereby improving the assembly efficiency of the log-periodic antenna.

[0014] According to some embodiments of the present invention, the main body is an arc-shaped plate protruding away from the spacing adjuster.

[0015] According to some embodiments of the present invention, there are multiple spacing adjusters and they are arranged at intervals along the extension direction of the first set of lines; the first set of lines includes a first section and a second section arranged along the first direction, the first section includes the first end and is connected to multiple first vibrators, the second section includes the second end and is connected to multiple first vibrators, all the spacing adjusters are connected to the second section, and the distance between the first section in the first direction is smaller than the distance between the second section in the first direction.

[0016] According to some embodiments of the present invention, the log-periodic antenna further includes: an antenna cover and a lifting bracket, the antenna cover defines an installation space, the first vibrator array and the second vibrator array are both arranged in the installation space, there are two lifting brackets and they are respectively connected to the first collection line and the second collection line, each of the lifting brackets includes a main body and a connecting part, the main body extends along the first direction and is arranged on the side of the first collection line away from the second collection line, the main body is connected to the side wall of the installation space on the corresponding side, there are two connecting parts and they are connected to both ends of the main body in the first direction; one of the two connecting parts connected to the first collection line is connected to the first section, and the other is connected to the second section, and a spacing adjuster is provided between the two connecting parts.

[0017] According to some embodiments of the present invention, the main body abuts against a side wall of the installation space on a corresponding side, and the main body is an arc-shaped plate protruding away from the spacing adjuster.

[0018] According to some embodiments of the present invention, the connecting portion defines a second slot extending along the first direction and passing through the connecting portion, and the second slot is provided with a second installation notch in the second direction so that the collective line of one of the two vibrator arrays can pass through the second installation notch and be inserted into the second slot; the surface of the second slot opposite to the second installation notch in the second direction is a second limiting surface, and the second limiting surface is recessed in a direction away from the second installation notch to form a second limiting groove, and the coaxial cable is inserted into the second limiting groove.

[0019] According to some optional embodiments of the present invention, the portion where the first and second assembly lines are connected to the spacing adjuster is an installation position, and at the installation position, the first and second assembly lines both define a positioning notch, and the fixing portion is clamped in the positioning notch and respectively stops against the side walls of the positioning notch on both sides in the first direction.

[0020] According to some optional embodiments of the present invention, the log-periodic antenna further includes: a reflector, which is disposed at the second section of the first set of lines and respectively connects the first set of lines and the second set of lines.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a schematic diagram of a log-periodic antenna according to some embodiments of the present invention;

[0024] Figure 2 yes Figure 1 Schematic diagram of another perspective of the log-periodic antenna in;

[0025] Figure 3 yes Figure 1 Schematic diagram of the partial structure of the log-periodic antenna in FIG.

[0026] Figure 4 yes Figure 3 An exploded diagram of the partial structure of the log-periodic antenna in Figure 1;

[0027] Figure 5 yes Figure 4 A three-dimensional diagram of the positioning adjustment member in FIG.

[0028] Figure 6 yes Figure 5 A right side view of the positioning adjustment member in FIG.

[0029] Figure 7 yes Figure 5 A top view of the positioning adjustment member in FIG.

[0030] Figure 8 yes Figure 5 A schematic diagram of another viewing angle of the positioning adjustment member in FIG.

[0031] Fig. 9 yes Figure 1 A schematic diagram of another part of the structure of the log-periodic antenna;

[0032] Fig.10 yes Fig. 9 Schematic diagram of the lifting bracket in FIG.

[0033] Fig.11 yes Fig. 9 Schematic diagram of another perspective of the lifting bracket.

[0034] Reference numerals:

[0035] 100. Log-periodic antenna;

[0036] 10. Spacing adjuster; 1. Positioning adjusting member; 11. Fixing portion; 111. First card slot; 112. First mounting notch; 113. First limiting slot; 12. Adjusting rod; 121. Second positioning structure; 13. Positioning portion; 131. Main frame; 132. Adjusting pressure rod; 1321. Positioning section; 1322. Pressing section; 133. Through hole; 134. First positioning structure; 135. Connecting column;

[0037] 20. first vibrator array; 2. first set line; 21. first section; 22. second section; 23. first end; 24. second end; 25. positioning notch; 3. first vibrator;

[0038] 40. second vibrator array; 4. second set line; 41. third section; 42. fourth section; 43. bending portion; 5. second vibrator;

[0039] 60. coaxial cable; 61. outer conductor; 62. inner conductor;

[0040] 70, lifting bracket; 7, main body; 8, connecting part; 81, second slot; 82, second installation notch; 83, second limiting slot;

[0041] 90. Reflector. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] The following describes a spacing adjuster 10 according to an embodiment of the present invention with reference to the accompanying drawings.

[0044] Reference Figure 1-Figure 11 According to the spacing adjuster 10 of the first embodiment of the present invention, the spacing adjuster 10 is used to adjust the gap between the two dipole arrays of the log-periodic antenna 100, for example, referring to Figure 1 and Figure 2, the two vibrator arrays can be respectively a first vibrator array 20 and a second vibrator array 40, the first vibrator array 20 includes: a first set of lines 2 and a first vibrator 3, the first set of lines 2 extends along a first direction (refer to the e1 direction in the accompanying drawings), the first vibrator 3 extends along a third direction (refer to the e3 direction in the accompanying drawings), and the first vibrator 3 is connected to the first set of lines 2, and the first vibrator 3 is a plurality of first vibrators 3 arranged at intervals along the first direction, the second vibrator array 40 includes a second set of lines 4 and a second vibrator 5, the second set of lines 4 extends along the first direction, and the second set of lines 4 is arranged opposite to the first set of lines 2 in the second direction (refer to the e2 direction in the accompanying drawings), the second vibrator 5 extends along the third direction, the second vibrator 5 is connected to the second set of lines 4, and the second vibrator 5 is a plurality of second vibrators arranged at intervals along the first direction; in the first direction, the first vibrator 3 and the second vibrator 5 are alternately arranged; in the third direction, the first vibrator 3 and the corresponding second vibrator 5 are symmetrically arranged along the central axis of the set line.

[0045] Reference Figure 3-Figure 8 The spacing adjuster 10 includes two positioning adjustment members 1, each positioning adjustment member 1 includes a fixing portion 11, an adjustment rod 12 and a positioning portion 13, the fixing portion 11 is connected to a vibrator array, for example, the fixing portion 11 and the vibrator array can be connected by a snap connection, the fixing portion 11 and the vibrator array can also be connected by a fastener connection, or the fixing portion 11 and the vibrator array can also be connected by an adhesive connection.

[0046] The adjusting rod 12 and the positioning portion 13 are respectively arranged at the two ends of the fixing portion 11 in the third direction. The positioning portion 13 defines a through hole 133 extending along the first direction. A first positioning structure 134 is provided on the inner surface of the through hole 133 away from the fixing portion 11. The adjusting rod 12 extends along the second direction, and the adjusting rod 12 is provided with a plurality of second positioning structures 121 on the side surface away from the fixing portion 11. The plurality of second positioning structures 121 are arranged at intervals along the second direction.

[0047] It should be explained that, in the present application, a plurality refers to two or more.

[0048] Among them, the two positioning adjustment members 1 are used by being rotated 180° relative to each other, the adjustment rod 12 of one of the two positioning adjustment members 1 is inserted into the through hole 133 of the other one, and the adjustment rod 12 can move in the corresponding through hole 133 along the second direction, and the first positioning structure 134 in the through hole 133 is inserted into a second positioning structure 121 in the corresponding adjustment rod 12, so that any second positioning structure 121 on the adjustment rod 12 can be plugged and matched with the first positioning structure 134 in the corresponding through hole 133, the first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction.

[0049] For example, the first positioning structure 134 can be formed as a triangular protrusion, so that the operator can push the fixing part 11 to insert the first positioning structure 134 into different second positioning structures 121. For example, the second positioning structure 121 can also be formed as a triangular groove, so that the operator can push the fixing part 11 to push the first positioning structure 134 and thus one second positioning structure 121 into another second positioning structure 121.

[0050] When assembling the log-periodic antenna 100, the two positioning adjustment members 1 can be first rotated 180° relative to each other, and then one positioning adjustment member 1 is connected to the first collection line 2, and the adjustment rod 12 of the positioning adjustment member 1 is set toward the second collection line 4, and the other positioning adjustment member 1 is connected to the second collection line 4, and the adjustment rod 12 of the other positioning adjustment member 1 is set toward the first collection line 2, and then the adjustment rod 12 of one of the positioning adjustment members 1 is inserted into the through hole 133 of the other, and the first positioning structure 134 is plugged together with one of the second positioning structures 121 to complete the connection and fixation of the two positioning adjustment members 1, and the two vibrator arrays are relatively fixed in the second direction.

[0051] The mutual cooperation between the first positioning structure 134 and the second positioning structure 121 can limit the two positioning adjustment members 1 in the second direction, so that the distance between the two fixing parts 11 in the second direction is fixed, and the probability of one of the positioning adjustment members 1 moving relative to the other causing the size of the two fixing parts 11 in the second direction to change is effectively reduced, so that the positioning of the two fixing parts 11 in the second direction is reliable, and the gap positioning between the two vibrator arrays of the log-periodic antenna 100 is reliable, effectively ensuring the working performance of the log-periodic antenna 100.

[0052] When the spacing between the two vibrator arrays in the second direction needs to be set smaller, the two fixing parts 11 can be pushed toward each other along the second direction, and the first positioning structure 134 and the second positioning structure 121 closer to the fixing part 11 are plugged together, so as to reduce the spacing between the two fixing parts 11 in the second direction, reduce the spacing between the two vibrator arrays in the second direction, and make the spacing between the two vibrator arrays in the second direction smaller. When the spacing between the two vibrator arrays in the second direction needs to be set larger, the two fixing parts 11 can be pushed away from each other along the second direction, and the first positioning structure 134 and the second positioning structure 121 farther away from the fixing part 11 are plugged together, so as to expand the spacing between the two fixing parts 11 in the second direction, expand the spacing between the two vibrator arrays in the second direction, and make the spacing between the two vibrator arrays in the second direction larger.

[0053] In this way, by pushing the two positioning adjustment members 1 to move relative to each other, or pushing the two positioning adjustment members 1 to move back to back, the first positioning structure 134 can be inserted into different second positioning structures 121, so that the spacing between the two fixing parts 11 in the second direction can be adjusted, so that the gap between the two vibrator arrays of the log-periodic antenna 100 is adjustable, the structure is simple, and it is easy to use, which can improve the assembly efficiency of the log-periodic antenna 100.

[0054] According to the spacing adjuster 10 of the present invention, by setting two positioning adjustment members 1 for relative rotation of 180°, and setting a first positioning structure 134 that cooperates with the second positioning structure 121 on the adjustment rod 12 in the through hole 133, the two fixing parts 11 can be fixed in the second direction by the mutual cooperation between the first positioning structure 134 and the second positioning structure 121, so that the gap positioning between the two vibrator arrays of the logarithmic periodic antenna 100 is reliable, and the two positioning adjustment members 1 can be pushed to move relative to each other, and the first positioning structure 134 can be inserted into different second positioning structures 121 to adjust the spacing between the two fixing parts 11 in the second direction, so that the gap between the two vibrator arrays of the logarithmic periodic antenna 100 is adjustable. The structure is simple and easy to use, and the assembly efficiency of the logarithmic periodic antenna 100 can be improved.

[0055] Reference Figure 3-Figure 8 According to some embodiments of the present invention, the fixing portion 11 defines a first slot 111, the first slot 111 extends along a third direction, and the first slot 111 penetrates the fixing portion 11 in the first direction, and the first slot 111 is provided with a first installation notch 112 in the second direction, so that the collection line of one of the two vibrator arrays can pass through the first installation notch 112 and pass through the first slot 111.

[0056] It should be understood that the positioning adjustment member 1 in the present application needs to utilize the fixing portion 11 to relatively fix the positioning adjustment member 1, so the size of the first installation notch 112 in the third direction should be smaller than the size of the part of the assembly line that cooperates with it in the third direction. That is to say, when the fixing portion 11 is snapped onto the assembly line, it is necessary to bend the fixing portion 11 to expand the size of the first installation notch 112 in three directions so that the assembly line can pass through the first installation notch 112 and be snapped into the first slot 111.

[0057] The snap-on connection method has a simple structure and is easy to use, making it convenient for operators to connect the fixing portion 11 with the dipole array, thereby improving the production efficiency of the log-periodic antenna 100.

[0058] Reference Figure 3-Figure 8According to some embodiments of the present invention, the surface of the first slot 111 opposite to the first installation notch 112 in the second direction is a first limiting surface, and the first limiting surface is recessed in a direction away from the first installation notch 112 to form a first limiting groove 113 for the coaxial cable 60 of the log-periodic antenna 100 to pass through. For example, the coaxial cable 60 can be passed through the first limiting groove 113 after the outer sheath is peeled off, so that the outer conductor 61 of the coaxial cable is exposed and connected to the collective line, so as to realize the feeding of the coaxial cable to one of the dipole arrays.

[0059] It should be understood that the first limiting groove 113 is used to position the coaxial cable 60. Therefore, in order to reduce the risk of the coaxial cable 60 shaking in the first limiting groove 113, when selecting the coaxial cable 60, a coaxial cable 60 with a larger size should be selected so that part of the coaxial cable 60 can extend into the first limiting groove 113, so that the collective line can be used to press against the coaxial cable 60 to achieve the connection and fixation of the coaxial cable 60.

[0060] By setting the first limit groove 113 to position the coaxial cable 60, the risk of shaking of the coaxial cable 60 can be effectively reduced, so that the coaxial cable 60 can be reliably fixed relative to the collective line, and the coaxial cable 60 can reliably feed the collective line, so that the logarithmic periodic antenna 100 can work reliably; at the same time, this can effectively reduce the changes in antenna indicators caused by changes in the position of the coaxial cable 60 relative to the collective line, and effectively ensure the working performance of the logarithmic periodic antenna 100.

[0061] Reference Figure 3 , Figure 5-Figure 8 According to some optional embodiments of the present invention, the positioning portion 13 includes a main frame 131 and an adjusting pressure rod 132, the main frame 131 includes two ears protruding from the outer end surface of the fixing portion 11, the two ears are spaced apart along the first direction, the adjusting pressure rod 132 is arranged between the two ears, and the adjusting pressure rod 132 is fixedly connected to the ears through a connecting column 135, the adjusting pressure rod 132 and the main frame 131 jointly define a through hole 133, and the first positioning structure 134 is arranged on the adjusting pressure rod 132;

[0062] Among them, the connecting column 135 has the ability of torsion deformation, and the adjusting pressure rod 132 has a first movement position and a second movement position relative to the main frame 131. In the first movement position, the spacing between the first positioning structure 134 and the fixing part 111 in the third direction is the first spacing, and the first positioning structure 134 and the second positioning structure 121 are plugged in and matched; in the second movement position, the spacing between the first positioning structure 134 and the fixing part 11 in the third direction is the second spacing, and the second spacing is greater than the first spacing. The first positioning structure 134 and the second positioning structure 121 are disengaged from the plug-in fit, and the adjusting pressure rod 132 drives the connecting column 135 to torsion deformation.

[0063] When it is necessary to adjust the distance between the two fixing parts 11 in the second direction, the adjustment pressure rod 132 can be adjusted to the second movement position to expand the spacing between the first positioning structure 134 and the fixing part 11 in the third direction, and the first positioning structure 134 can be pulled out from the second positioning structure 121. Then, the positioning adjustment member 1 is moved toward each other or away from each other. When the spacing between the two fixing parts 11 in the second direction is adjusted to a preset position, the pressing part is released, and the first positioning structure 134 and the corresponding second positioning structure 121 are inserted together by using the torsional deformation force of the connecting column 135 to complete the relative positioning of the two positioning adjustment members 1.

[0064] In this way, the operator can apply force to the adjustment pressure rod 132 when holding the positioning adjustment member 1, thereby completing the operation of pulling the first positioning structure 134 out of the second positioning structure 121. The structure is simple and the operation is convenient, and the operator does not need to use a lot of force to push the positioning adjustment member 1 to change the spacing between the two fixing parts 11 in the second direction, making it more convenient to adjust the spacing between the two fixing parts 11 in the second direction, and making it more convenient to adjust the spacing between the two vibrator arrays in the second direction, which can effectively improve the assembly efficiency of the log-periodic antenna 100.

[0065] Reference Figure 3 , Figure 5-Figure 8 According to some optional embodiments of the present invention, the adjusting pressure rod 132 includes a positioning section 1321 and a pressing section 1322, the positioning section 1321 and the main frame 131 jointly define a through hole 133, the first positioning structure 134 is provided on the positioning section 1321, the pressing section 1322 is connected to one end of the positioning section 1321 away from the first positioning structure 134 in the second direction, that is, the pressing section 1322 is connected to one end of the positioning section 1321 in the second direction close to the first mounting notch 112, and the pressing section 1322 extends in the second direction, and the two ends of the positioning section 1321 in the first direction are fixedly connected to the corresponding support ears through connecting columns 135.

[0066] When force is applied to the pressing section 1322, the pressing section 1322 can transfer the force to the connecting column 135, causing the connecting column 135 to twist and deform, store energy, and cause the positioning section 1321 to tilt in the direction opposite to the force direction, so that the first positioning structure 134 is pulled out of the second positioning structure 121; after the force applied to the pressing section 1322 is cancelled, the connecting column 135 can rotate in the opposite direction to release energy, so that the positioning section 1321 drives the first positioning structure 134 to be inserted into the second positioning structure 121.

[0067] When it is necessary to adjust the distance between the two fixing parts 11 in the second direction, the pressing section 1322 can be pressed toward the fixing part 11 to tilt the positioning section 1321 in the direction away from the fixing part 11, and the first positioning structure 134 can be pulled out from the second positioning structure 121. Then, the positioning adjustment member 1 can be moved toward each other or away from each other. When the spacing between the two fixing parts 11 in the second direction is adjusted to a preset position, the pressing section can be released, and the first positioning structure 134 can be inserted into the corresponding second positioning structure 121 by utilizing the rebound force of the connecting column 135 to complete the relative positioning of the two positioning adjustment members 1.

[0068] In this way, the operator can apply force to the pressing portion when holding the positioning adjustment member 1, and complete the operation of extracting the first positioning structure 134 from the second positioning structure 121. The structure is simple and easy to operate, and the operator does not need to use a lot of force to push the positioning adjustment member 1 to change the spacing between the two fixing portions 11 in the second direction, making it easier to adjust the spacing between the two fixing portions 11 in the second direction, and making it easier to adjust the spacing between the two vibrator arrays in the second direction, which can effectively improve the assembly efficiency of the logarithmic periodic antenna 100. At the same time, the pressing section 1322 of the adjustment pressure rod 132 is set to extend along the second direction, so that the size of the positioning adjustment member 1 in the third direction can be reduced. Optionally, the pressing section 1322 can also extend in the third direction in a direction away from the fixing portion 11.

[0069] For example, refer to Figure 3 and Figure 8 There can be multiple first positioning structures 134, and the multiple first positioning structures 134 are arranged in sequence along the second direction. The multiple first positioning structures 134 can all be inserted into the second positioning structure 121, so that the multiple first positioning structures 134 and the multiple second positioning structures 121 can roughly form a structure in which two racks are meshed with each other, so that the connection and fixation between the positioning part 13 and the adjustment rod 12 is more reliable, and the probability of one of the positioning adjustment members 1 moving relative to the other and causing the size of the two fixing parts 11 in the second direction to change is more effectively reduced, so that the positioning of the two fixing parts 11 in the second direction is reliable, and the gap positioning between the two vibrator arrays of the log-periodic antenna 100 is reliable, which effectively ensures the working performance of the log-periodic antenna 100.

[0070] Reference Figure 3 , Figure 5 and Figure 8 In some optional embodiments of the present invention, the main frame 131, the adjusting pressure rod 132 and the connecting column 135 are injection molded integral parts; for example, the positioning adjusting member 1 can be an injection molded integral part. This can reduce the number of parts in the positioning adjusting member 1, improve the production efficiency of the positioning adjusting member 1, and reduce the production cost of the positioning adjusting member 1.

[0071] In some optional embodiments of the present invention, an assembly hole is provided on the positioning section 1321, a matching hole is provided on the main frame 131, the assembly hole and the matching hole are opposite to each other in the first direction, the connecting column 135 is passed through the assembly hole and the matching hole, the outer contour of the cross section of the connecting column 135 is non-circular, the assembly hole is adapted to the outer contour of the connecting column 135, and the matching hole is adapted to the outer contour of the connecting column 135. For example, the outer contour of the cross section of the connecting column 135 may be rectangular, triangular, polygonal or semicircular.

[0072] In this way, the torsional deformation of the connecting column 135 after being subjected to force and the rebound rotation of the connecting column 135 after the pressing force is cancelled can be achieved. At the same time, when one of the main pile frame, the connecting column 135 and the adjusting pressure rod 132 is damaged, it is only necessary to replace the damaged component without replacing the entire positioning adjustment member 1, thereby effectively reducing the maintenance cost of the positioning adjustment member 1 and the maintenance cost of the spacing adjuster 10.

[0073] Reference Figure 1-Figure 4 , Fig. 9 , the logarithmic periodic antenna 100 of the embodiment of the second aspect of the present invention comprises a first dipole array 20, a second dipole array 40 and a coaxial cable 60, the first dipole array 20 comprises: a first set line 2 and a first dipole 3, the first set line 2 extends along a first direction, the two ends of the first set line 2 in the first direction are respectively a first end 23 and a second end 24, the first dipole 3 is connected to the first set line 2, and the first dipole 3 is a plurality of first dipoles 3 arranged at intervals along the first direction, and in the direction from the first end 23 to the second end 24, the sizes of the plurality of first dipoles 3 in the third direction are increased sequentially;

[0074] The second vibrator array 40 includes a second set of lines 4 and a second vibrator 5, the second set of lines 4 extends along the first direction, and the second set of lines 4 is arranged opposite to the first set of lines 2 in the second direction, the second vibrator 5 is connected to the second set of lines 4, and the second vibrator 5 is a plurality of second vibrators 5 arranged at intervals along the first direction, in the direction from the first end 23 to the second end 24, the sizes of the plurality of second vibrators 5 in the third direction are increased sequentially, in the first direction, the first vibrators 3 and the second vibrators 5 are arranged alternately, and in the third direction, the first vibrators 3 and the corresponding second vibrators 5 are symmetrically arranged along the central axis of the second set of lines 4;

[0075] The outer conductor 61 of the coaxial cable 60 is connected to the first assembly line 2, and the inner conductor 62 of the coaxial cable 60 is connected to the second assembly line 4; according to the spacing adjuster 10 of the first embodiment of the present invention, the two positioning adjustment members 1 of the spacing adjuster 10 are respectively connected to the first assembly line 2 and the second assembly line 4. For example, the second assembly line 4 is bent toward the first assembly line 2 at the part of the second section 22 to form a bending portion 43, and the bending portion 43 extends to the side of the first assembly line 2 away from the second assembly line 4, and the part of the bending portion 43 located on the side of the first assembly line 2 away from the second assembly line 4 is connected to the inner conductor 62 of the coaxial cable 60.

[0076] When assembling the log-periodic antenna 100, the two positioning adjustment members 1 can be first rotated 180° relative to each other, and then one positioning adjustment member 1 is connected to the first collection line 2, and the adjustment rod 12 of the positioning adjustment member 1 is set toward the second collection line 4, and the other positioning adjustment member 1 is connected to the second collection line 4, and the adjustment rod 12 of the other positioning adjustment member 1 is set toward the first collection line 2, and then the adjustment rod 12 of one of the positioning adjustment members 1 is inserted into the through hole 133 of the other, and the first positioning structure 134 is plugged together with one of the second positioning structures 121 to complete the connection and fixation of the two positioning adjustment members 1, and the two vibrator arrays are relatively fixed in the second direction.

[0077] When the spacing between the first set of lines 2 and the second set of lines 4 in the second direction needs to be set smaller, the two fixing parts 11 can be pushed toward each other along the second direction, and the first positioning structure 134 can be inserted into the second positioning structure 121 closer to the fixing part 11, thereby reducing the spacing between the two fixing parts 11 in the second direction, and reducing the spacing between the two vibrator arrays in the second direction, so that the spacing between the first set of lines 2 and the second set of lines 4 in the second direction is smaller. When the spacing between the first set of lines 2 and the second set of lines 4 in the second direction needs to be set larger, the two fixing parts 11 can be pushed away from each other along the second direction, and the first positioning structure 134 can be plugged together with the second positioning structure 121 farther away from the fixing part 11, thereby expanding the spacing between the two fixing parts 11 in the second direction, and expanding the spacing between the two vibrator arrays in the second direction, so that the spacing between the first set of lines 2 and the second set of lines 4 in the second direction is larger.

[0078] According to the log-periodic antenna 100 of the present invention, through the above-mentioned spacing adjuster 10, the structure is simple and easy to use, and the gap between the two vibrator arrays of the log-periodic antenna 100 can be reliably positioned, so that the gap between the two vibrator arrays of the log-periodic antenna 100 is adjustable, thereby improving the assembly efficiency of the log-periodic antenna 100.

[0079] Reference Figure 1 and Figure 2According to some embodiments of the present invention, there are multiple spacing adjusters 10, and they are arranged at intervals along the extension direction of the first set of lines 2; the first set of lines 2 includes a first section 21 and a second section 22 arranged along the first direction, the first section 21 includes a first end 23, and the first section 21 is connected to a plurality of first vibrators 3, the second section 22 includes a second end 24, and the second section 22 is connected to a plurality of first vibrators 3, for example, the portion of the second set of lines 4 opposite to the first section 21 in the second direction is the third section 41, and the portion of the second set of lines 4 opposite to the second section 22 in the second direction is the fourth section 42. All spacing adjusters 10 are connected to the second section 22, that is, no spacing adjuster 10 is provided on the first section 21. The distance of the first section 21 in the first direction is smaller than the distance of the second section 22 in the first direction.

[0080] By using multiple spacing adjusters 10 to position the second segment 22 of the first set of lines 2 and the fourth segment 42 of the second set of lines 4, the second segment 22 of the first set of lines 2 and the fourth segment 42 of the second set of lines 4 can be reliably positioned, so that the positioning of the second segment 22 of the first set of lines 2 and the fourth segment 42 of the second set of lines 4 in the second direction is relatively reliable.

[0081] At the same time, since the distance of the first section 21 is shorter, the cantilever length of the first section 21 can be shorter, and the spacing adjuster 10 is not set on the first section 21, so that the force on the first section 21 of the first collection line 2 will not be too heavy, and the risk of deformation or vibration of the first section 21 can be effectively reduced, so that the positioning of the first section 21 of the first collection line 2 and the third section 41 of the second collection line 4 in the second direction is relatively reliable.

[0082] Reference Figure 9-11 According to some embodiments of the present invention, the portion of the second set of lines 4 opposite to the first segment 21 in the second direction is the third segment 41, and the portion of the second set of lines 4 opposite to the second segment 22 in the second direction is the fourth segment 42; for example, the bending portion 43 can be connected to an end of the third segment 41 away from the fourth segment 42 in the first direction.

[0083] The log-periodic antenna 100 also includes: an antenna cover and a lifting bracket 70. The antenna cover defines an installation space. The first vibrator array 20 and the second vibrator array 40 are both arranged in the installation space. There are two lifting brackets 70, and the two lifting brackets 70 are respectively connected to the first set of lines 2 and the second set of lines 4. Each lifting bracket 70 includes a main body 7 and a connecting part 8. The main body 7 extends along the first direction, and the main body 7 is arranged on the side of the first set of lines 2 away from the second set of lines 4. The main body 7 is connected to the side wall of the installation space on the corresponding side; for example, the main body 7 can be connected to the side wall of the installation space on the corresponding side by a snap-on connection, and the main body 7 can also be connected to the side wall of the installation space on the corresponding side by a fastening connection. The main body 7 and the side wall of the installation space on the corresponding side can also be stop-connected.

[0084] There are two connecting parts 8, and the two connecting parts 8 are connected to both ends of the main body 7 in the first direction. One of the two connecting parts 8 connected to the first collective line 2 is connected to the first section 21, and the other of the two connecting parts 8 connected to the first collective line 2 is connected to the second section 22, and a spacing adjuster 10 is provided between the two connecting parts 8; that is, the connecting part 8 connected to the second section 22 is located between the two spacing adjusters 10.

[0085] In this way, the lifting bracket 70 connected to the first assembly line 2 can connect and fix the side wall of the antenna cover on the corresponding side of the first assembly line 2, and connect and fix the side wall of the antenna cover on the corresponding side of the first section 21, thereby reducing the risk of deformation or vibration of the first section 21, making the relative positioning of the first section 21 of the first assembly line 2 and the second section 22 of the first assembly line 2 in the second direction more reliable, thereby improving the reliability of the logarithmic periodic antenna 100.

[0086] It should be understood that the first vibrator array 20 and the second vibrator array 40 have similar structures. When the lifting bracket 70 is connected to the second collection line 4, one of the two connecting parts 8 connected to the second collection line 4 is connected to the third section 41, and the other of the two connecting parts 8 connected to the second collection line 4 is connected to the fourth section 42, and a spacing adjuster 10 is provided between the two connecting parts 8.

[0087] In this way, the lifting bracket 70 connected to the second assembly line 4 can connect and fix the side wall of the antenna cover on the corresponding side of the second assembly line 4, and connect and fix the side wall of the antenna cover on the corresponding side of the third section 41, thereby reducing the risk of deformation or vibration of the third section 41, making the relative positioning of the third section 41 of the second assembly line 4 and the fourth section 42 of the second assembly line 4 in the second direction more reliable, thereby improving the reliability of the logarithmic periodic antenna 100.

[0088] Reference Fig.10 and Fig.11According to some embodiments of the present invention, the main body 7 is abutted against the side wall of the installation space on the corresponding side, and the abutment connection is performed. In this way, there is no need to set up an additional connection structure. The first vibrator array 20, the second vibrator array 40, the spacing adjuster 10 and the lifting bracket 70 are inserted into the installation space. The lifting bracket 70 connected to the first assembly line 2 can be clamped between the first assembly line 2 and the side wall of the antenna cover on the corresponding side, so that the lifting bracket 70 can position the first assembly line 2. The lifting bracket 70 connected to the second assembly line 2 can be clamped between the second assembly line 4 and the side wall of the antenna cover on the corresponding side, so that the lifting bracket 70 can position the second assembly line 4. The structure is simple and easy to use.

[0089] The main body 7 is an arc-shaped plate protruding away from the spacing adjuster 10. When the two connecting parts 8 are connected to the set line, the main body 7 can have a certain tension, so that the main body 7 on the first set line 2 can apply force to the first section 21 through the connecting part 8, so that the first section 21 is reliably suspended relative to the second section 22, and the first section 21 is reliably positioned relative to the second section 22; the main body 7 on the second set line 4 can apply force to the third section 41 through the connecting part 8, so that the third section 41 is reliably suspended relative to the fourth section 42, and the third section 41 is reliably positioned relative to the fourth section 42, thereby improving the reliability of the log-periodic antenna 100.

[0090] Reference Fig.10 and Fig.11 According to some embodiments of the present invention, the connecting portion 8 defines a second slot 81, the second slot 81 extends along the third direction, and the second slot 81 penetrates the connecting portion 8 along the first direction, and the second slot 81 is provided with a second installation notch 82 in the second direction, so that the collection line of one of the two vibrator arrays can pass through the second installation notch 82 and penetrate into the second slot 81.

[0091] It should be understood that the lifting bracket 70 in the present application needs to be relatively fixed to the first assembly line 2 by means of the connecting part 8, so the size of the second installation gap 82 in the third direction should be smaller than the size of the part of the assembly line that cooperates with it in the third direction. That is to say, when the connecting part 8 is snapped onto the assembly line, it is necessary to bend the connecting part 8 to expand the size of the second installation gap 82 in three directions so that the assembly line can pass through the second installation gap 82 and be snapped into the second card slot 81.

[0092] The surface of the second slot 81 opposite to the second installation notch 82 in the second direction is a second limiting surface, and the second limiting surface is recessed in a direction away from the second installation notch 82 to form a second limiting groove 83, and the coaxial cable 60 is inserted into the second limiting groove 83. For example, the coaxial cable 60 can be inserted into the second limiting groove 83 after the outer sheath is peeled off, so that the outer conductor 61 of the coaxial cable 60 is exposed and connected to the collective line, so as to realize the feeding of the coaxial cable 60 to one of the vibrator arrays.

[0093] It should be understood that the second limiting groove 83 is used to position the coaxial cable 60. Therefore, in order to reduce the risk of the coaxial cable 60 shaking in the second limiting groove 83, when selecting the coaxial cable 60, a coaxial cable 60 with a larger size should be selected so that part of the coaxial cable 60 can extend into the second limiting groove 83, so that the collective line can be used to press against the coaxial cable 60 to achieve the connection and fixation of the coaxial cable 60.

[0094] By setting the second limit groove 83 to position the coaxial cable 60, the risk of shaking of the coaxial cable 60 can be effectively reduced, so that the coaxial cable 60 can be reliably fixed relative to the collective line, reducing the risk of the inner conductor 62 of the coaxial cable 60 shaking and detaching from the second collective line 4, so that the coaxial cable 60 can reliably feed the first collective line 2 and the second collective line 4, so that the logarithmic periodic antenna 100 can work reliably; at the same time, this can effectively reduce the changes in antenna indicators caused by changes in the position of the coaxial cable 60 relative to the collective line, and effectively ensure the working performance of the logarithmic periodic antenna 100.

[0095] Reference Figure 4 According to some optional embodiments of the present invention, the location where the first set of wires 2 and the second set of wires 4 are connected to the spacing adjuster 10 is the installation position. At the installation position, the first set of wires 2 and the second set of wires 4 define a positioning notch 25, the fixing portion 11 is clamped in the positioning notch 25, and the fixing portion 11 stops against the side walls of the positioning notch 25 on both sides in the first direction. In this way, the spacing adjuster 10 can be limited in the first direction, so that the spacing adjuster 10 is reliably positioned relative to the set of wires in the first direction, reducing the risk of the spacing adjuster 10 moving in the first direction and causing the two vibrator arrays to vibrate, thereby improving the reliability of the log-periodic antenna 100.

[0096] Reference Figure 1 and Figure 2According to some optional embodiments of the present invention, the log-periodic antenna 100 further includes: a reflector 90, the reflector 90 is disposed at the second section 22 of the first set of lines 2, and the reflector 90 connects the first set of lines 2 and the second set of lines 4, respectively. For example, the reflector 90 may be a metal part. The reflector 90 may play a certain supporting role for the first set of lines 2 and the second set of lines 4, so that the first dipole array 20 and the second dipole array 40 are relatively fixed and reliable. At the same time, the reflector 90 may reflect a part of the radiation generated by the log-periodic antenna 100 from the first end 23 toward the second end 24, thereby improving the gain of the log-periodic antenna 100.

[0097] In the description of the present invention, it is to be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0098] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0099] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0100] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A spacing adjuster for adjusting the gap between two dipole arrays of a log-periodic antenna, characterized in that: include: Two positioning adjustment members, each of the positioning adjustment members comprises a fixing portion, an adjustment rod and a positioning portion, the fixing portion is connected to one of the vibrator arrays, the adjustment rod and the positioning portion are respectively arranged at two ends of the fixing portion in the third direction, the positioning portion defines a through hole extending along the first direction, a first positioning structure is arranged on an inner surface of the through hole away from the fixing portion, the adjustment rod extends along the second direction and is provided with a plurality of second positioning structures on a side surface away from the fixing portion, and the plurality of second positioning structures are arranged at intervals along the second direction; Among them, the two positioning adjustment members are used by rotating 180° relative to each other, the adjustment rod of one of the two positioning adjustment members is inserted into the through hole of the other one and is movable along the second direction, so that any one of the second positioning structures on the adjustment rod can be plugged together with the first positioning structure in the corresponding through hole, the first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction.

2. The spacing adjuster according to claim 1, characterized in that: The fixing portion defines a first slot, which extends along the third direction and penetrates the fixing portion in the first direction. The first slot is provided with a first installation notch in the second direction so that the collective line of one of the two vibrator arrays can pass through the first installation notch and be arranged in the first slot.

3. The spacing adjuster according to claim 2, characterized in that: The surface of the first slot opposite to the first installation notch in the second direction is a first limiting surface, and the first limiting surface is recessed in a direction away from the first installation notch to form a first limiting groove for the coaxial cable of the log-periodic antenna to pass through.

4. The spacing adjuster according to any one of claims 1 to 3, characterized in that: The positioning part includes a main frame and an adjusting pressure rod, the main frame includes two ears protruding from the outer end surface of the fixing part, the two ears are spaced apart along the first direction, the adjusting pressure rod is arranged between the two ears, and is fixedly connected to the ears through a connecting column, the adjusting pressure rod and the main frame jointly define the through hole, and the first positioning structure is arranged on the adjusting pressure rod; In which, the connecting column has a torsional deformation ability, and the adjusting pressure rod has a first movement position and a second movement position relative to the main frame. In the first movement position, the distance between the first positioning structure and the fixed part in the third direction is a first distance, and the first positioning structure is plugged into the second positioning structure; in the second movement position, the distance between the first positioning structure and the fixed part in the third direction is a second distance, the second distance is greater than the first distance, the first positioning structure and the second positioning structure are disengaged from the plug-in cooperation, and the adjusting pressure rod drives the connecting column to torsionally deform.

5. The spacing adjuster according to claim 4, characterized in that: The adjusting pressure rod includes a positioning section and a pressing section, the positioning section and the main frame jointly define the through hole, the first positioning structure is arranged on the positioning section, the pressing section is connected to one end of the positioning section away from the first positioning structure in the second direction, and the pressing section extends in the second direction, and the two ends of the positioning section in the first direction are fixedly connected to the corresponding support ears through connecting columns.

6. The spacing adjuster according to claim 5, characterized in that: The main frame, the adjusting pressure rod and the connecting column are integrally formed by injection molding; Or, an assembly hole is provided on the positioning section, and a matching hole is provided on the main frame, the assembly hole and the matching hole are opposite to each other in the first direction, the connecting column is passed through the assembly hole and the matching hole, the outer contour of the cross section of the connecting column is non-circular, the assembly hole is adapted to the outer contour of the connecting column, and the matching hole is adapted to the outer contour of the connecting column.

7. A log-periodic antenna, characterized in that: include: The first vibrator array comprises: a first set line and a first vibrator, wherein the first set line extends along the first direction, two ends of the first set line in the first direction are respectively a first end and a second end, the first vibrator is connected to the first set line and is arranged in a plurality of intervals along the first direction, and in the direction from the first end to the second end, the sizes of the plurality of first vibrators in the third direction are sequentially increased; A second vibrator array comprises: a second set of lines and a second vibrator, wherein the second set of lines extends along the first direction and is arranged opposite to the first set of lines in the second direction, a plurality of second vibrators are connected to the second set of lines and are arranged at intervals along the first direction, and in the direction from the first end to the second end, the sizes of the plurality of second vibrators increase in sequence in the third direction, the first vibrators and the second vibrators are arranged alternately in the first direction, and in the third direction, the first vibrators and the corresponding second vibrators are symmetrically arranged along the central axis of the second set of lines; A coaxial cable, wherein an outer conductor of the coaxial cable is connected to the first collective wire, and an inner conductor of the coaxial cable is connected to the second collective wire; According to the spacing adjuster described in any one of claims 1 to 6, the two positioning adjustment members of the spacing adjuster are respectively connected to the first collective line and the second collective line.

8. The log-periodic antenna according to claim 7, characterized in that: The spacing regulators are multiple and are arranged at intervals along the extension direction of the first set line; The first set line includes a first section and a second section arranged along the first direction, the first section includes the first end and is connected to a plurality of the first vibrators, the second section includes the second end and is connected to a plurality of the first vibrators, all the spacing adjusters are connected to the second section, and the distance between the first section in the first direction is smaller than the distance between the second section in the first direction.

9. The log-periodic antenna according to claim 8, characterized in that: Also includes: A radome and a lifting bracket, wherein the radome defines an installation space, the first vibrator array and the second vibrator array are both arranged in the installation space, the lifting bracket is two and respectively connected to the first set of lines and the second set of lines, each of the lifting brackets comprises a main body and a connecting part, the main body extends along the first direction and is arranged on a side of the first set of lines away from the second set of lines, the main body is connected to a side wall of the installation space on the corresponding side, and the connecting parts are two and connected to both ends of the main body in the first direction; One of the two connecting parts connected to the first collective line is connected to the first section, and the other is connected to the second section, and a spacing adjuster is provided between the two connecting parts.

10. The log-periodic antenna according to claim 9, characterized in that: The main body is in contact with a side wall of the installation space at a corresponding side, and the main body is an arc-shaped plate that protrudes away from the spacing adjuster.

11. The log-periodic antenna according to claim 9, characterized in that: The connecting portion defines a second slot, the second slot extends along the third direction, and the second slot passes through the connecting portion along the first direction, and the second slot is provided with a second installation notch in the second direction, so that the set line of one of the two vibrator arrays can pass through the second installation notch and pass through the second slot; The surface of the second card slot opposite to the second installation notch in the second direction is a second limiting surface, and the second limiting surface is recessed in a direction away from the second installation notch to form a second limiting groove, and the coaxial cable is inserted into the second limiting groove.

12. The log-periodic antenna according to any one of claims 7 to 11, characterized in that: The portion where the first and second assembly lines are connected to the spacing adjuster is an installation position. At the installation position, the first and second assembly lines both define a positioning notch, and the fixing portion is clamped in the positioning notch and respectively stops against the side walls of the positioning notch on both sides in the first direction.

13. The log-periodic antenna according to any one of claims 7 to 11, characterized in that: Also includes: A reflector is provided at the second section of the first set of lines and respectively connects the first set of lines and the second set of lines.

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