Fixed Bracket and Antenna

Abstract

The present invention provides a fixing bracket and an antenna, relating to the technical field of antennas. Among them, the fixing bracket includes: a plate-shaped part, a plurality of column parts not on the same straight line, and a clamping part arranged on the plate-shaped part; the plate-shaped part is provided with an installation surface for fastening and installing a microstrip line; the connecting end of the column part is fixedly connected to the plate-shaped part, and the free end of the column part is used for detachably connecting to the bottom plate of the antenna; the clamping part is arranged at the edge of the installation surface and is used for clamping a coaxial cable electrically connected to the microstrip line, so that the position of the connection point between the microstrip line and the coaxial cable on the plate-shaped part remains unchanged. The antenna includes: a microstrip line, a bottom plate, and the above-mentioned fixing bracket; the fixing bracket includes a column part and a plate-shaped part; the free end of the column part is detachably connected to the bottom plate; the microstrip line is fastened and installed on the installation surface of the plate-shaped part, thereby ensuring that the microstrip line will not generate mechanical deformation or warping, so as to ensure the overall machine intermodulation value of the antenna.

Description

Technical Field

[0001] The present invention relates to a fixing bracket and an antenna, belonging to the technical field of antennas. Background Art

[0002] In the field of antenna communication technology, microwave transmission lines mainly include forms such as coaxial cables, microstrip lines, strip lines, waveguides or resonators. In the actual application process, usually at least two forms of microwave transmission lines are combined. For example, a microstrip line and a coaxial cable are interconnected.

[0003] In the related art, an antenna includes a microstrip line, a coaxial cable, a bottom plate and a mounting plate. The microstrip line is mounted on the mounting plate, and the output end and the input end of the microstrip line are respectively connected to the coaxial cable by welding. Among them, the microstrip line includes a conductor layer, a substrate layer and a grounding layer stacked along the thickness direction of the microstrip line. The conductor layer includes a microstrip line, at least one input end and at least one output end. The input end and the output end of the conductor layer are respectively used for electrically connecting to the coaxial cable. The mounting plate is detachably connected to the bottom plate, so as to mount the microstrip line on the bottom plate.

[0004] However, after a period of time, the above-mentioned microstrip line will generate mechanical deformation, resulting in a deterioration of the overall machine intermodulation value of the antenna. Summary of the Invention

[0005] The present invention provides a fixing bracket and an antenna, which solve the problem that the microstrip line will generate mechanical deformation after a period of time in the prior art.

[0006] In a first aspect, the present invention provides a fixing bracket, including a plate-shaped part, a plurality of column parts not on the same straight line, and a clamping part arranged on the plate-shaped part;

[0007] The plate-shaped part is provided with a mounting surface for tightly mounting the microstrip line;

[0008] The connecting end of the column part is tightly connected to the plate-shaped part, and the free end of the column part is used for detachably connecting to the bottom plate of the antenna;

[0009] The clamping part is arranged at the edge of the mounting surface and is used for clamping the coaxial cable electrically connected to the microstrip line, so that the position of the connection point between the microstrip line and the coaxial cable on the plate-shaped part remains unchanged.

[0010] Optionally, a mounting groove for accommodating the microstrip line is arranged on the top surface of the plate-shaped part, and the bottom wall of the mounting groove is the mounting surface.

[0011] Optionally, the clamping part includes a first clamping part and a second clamping part;

[0012] The first clamping portion and the second clamping portion are respectively arranged at opposite ends of the plate-shaped portion. The first clamping portion is used for clamping the coaxial cable electrically connected to the input end of the microstrip line, and the second clamping portion is used for clamping the coaxial cable electrically connected to the output end of the microstrip line.

[0013] Optionally, the first clamping portion includes a first inclined platform portion having a first inclined surface, and a first clamping plate portion and a second clamping plate portion arranged on the first inclined surface; the first clamping plate portion, the second clamping plate portion and the first inclined surface together define a first clamping cavity, and the central axis of the first clamping cavity is inclined to the plate-shaped portion; and / or,

[0014] The second clamping portion includes a second inclined platform portion having a second inclined surface, and a third clamping plate portion and a fourth clamping plate portion arranged on the second inclined surface; the third clamping plate portion, the fourth clamping plate portion and the second inclined surface together define a second clamping cavity, and the central axis of the second clamping cavity is inclined to the plate-shaped portion.

[0015] Optionally, the included angle between the central axis of the first clamping cavity and the plate-shaped portion is 5° to 45°; or, the included angle between the central axis of the second clamping cavity and the plate-shaped portion is 5° to 45°.

[0016] Optionally, a first positioning portion and a first connecting portion are provided at the free end of the column portion;

[0017] The first positioning portion is used for cooperating with a first mating portion provided on the bottom plate to position the relative positions of the column portion and the bottom plate when assembling the column portion and the bottom plate;

[0018] The first connecting portion is used for detachably connecting with a mounting portion provided on the bottom plate.

[0019] Optionally, the first positioning portion is a rod-shaped structure, and the first mating portion is a first positioning hole or a first positioning groove for the first positioning portion to insert; or,

[0020] The first positioning portion is a second positioning groove, and the first mating portion is a rod-shaped structure inserted into the second positioning groove.

[0021] Optionally, the first connecting portion includes two first claws arranged at intervals;

[0022] The first positioning portion is located between the two first claws; the mounting portion is a clamping hole penetrating the bottom plate, and the first claws are inserted into the clamping hole.

[0023] Optionally, a second connecting portion, a second mating portion and an abutting portion are provided on the outer side wall of the column portion, and a third positioning groove is provided on the end surface of the connecting end of the column portion;

[0024] The second connecting portion is disposed adjacent to the free end of the column portion, and the second mating portion is disposed adjacent to the plate-like portion;

[0025] When at least two of the fixing brackets are stacked, in two adjacent layers of the fixing brackets, the column portion of the upper layer is inserted into the third positioning groove of the lower layer corresponding to the column portion; the abutting portion of the upper layer abuts against the plate-like portion of the lower layer, so that there is a gap between the plate-like portion of the upper layer and the plate-like portion of the lower layer; the second connecting portion of the upper layer cooperates with the second mating portion of the lower layer corresponding to the second connecting portion to fix two adjacent layers of the fixing brackets.

[0026] Optionally, the column portion includes a first column section and a second column section arranged coaxially; the free end of the first column section is fixedly connected to the plate-like portion, and the first column section and the second column section define a stepped surface, and the stepped surface is the abutting portion; the second column section is for being inserted into the third positioning groove or detachably connected to the bottom plate of the antenna; the second connecting portion and the second mating portion are both arranged on the first column section; or,

[0027] The abutting portion is a plate-like structure sleeved on the column portion, and the abutting portion is located in the middle of the column portion.

[0028] Optionally, the second connecting portion is a second claw, and the second mating portion is a first block that is snap-fitted with the second claw; or,

[0029] The second connecting portion is a second block, and the second mating portion is a third claw that is snap-fitted with the second block.

[0030] In a second aspect, the present invention provides an antenna, including a microstrip line, a bottom plate, and the above-mentioned fixing bracket;

[0031] The fixing bracket includes a column portion and a plate-like portion;

[0032] The free end of the column portion is detachably connected to the bottom plate;

[0033] The microstrip line is fixedly installed on the installation surface of the plate-like portion.

[0034] The fixed bracket and antenna provided by the present invention include: a plate-shaped part, a plurality of column parts not on the same straight line, and a clamping part arranged on the plate-shaped part; the plate-shaped part is provided with an installation surface for firmly installing a microstrip line; the connecting end of the column part is firmly connected to the plate-shaped part, and the free end of the column part is used for detachably connecting to the bottom plate of the antenna; the clamping part is arranged at the edge of the installation surface and is used for clamping a coaxial cable electrically connected to the microstrip line, so that the position of the connection point between the microstrip line and the coaxial cable on the plate-shaped part remains unchanged. The present invention constructs an installation platform for carrying the microstrip line through the plate-shaped part and the column part, and the microstrip line is installed on the installation surface, so that the microstrip line can be stably installed on the bottom plate of the antenna to prevent mechanical deformation of the microstrip line. In addition, the present invention clamps the coaxial cable electrically connected to the microstrip line through the clamping part, so that when the coaxial cable is pulled, the coaxial cable does not apply a force to the microstrip line but applies a force to the fixed bracket, ensuring that the microstrip line does not undergo mechanical deformation or warping, thereby ensuring the overall machine intermodulation value of the antenna. Since the antenna of the present invention has a fixed bracket, the overall machine intermodulation value of the antenna can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Through the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the embodiments of the present invention will become more readily understood. In the drawings, multiple embodiments of the present invention will be illustrated by way of example and not limitation, where:

[0036] Figure 1 is a partial perspective view of the antenna according to an embodiment of the present invention;

[0037] Figure 2 is a perspective view of the fixed bracket according to an embodiment of the present invention;

[0038] Figure 3 is a cross-sectional view of the fixed bracket according to an embodiment of the present invention;

[0039] Figure 4 is a partial enlarged view of the first clamping part according to an embodiment of the present invention;

[0040] Figure 5 is a partial enlarged view of the second clamping part according to an embodiment of the present invention;

[0041] Figure 6 is a partial enlarged view of the column part according to an embodiment of the present invention;

[0042] Figure 7 is a perspective view of two fixed brackets stacked according to an embodiment of the present invention;

[0043] Figure 8 is a left view of two fixed brackets stacked according to an embodiment of the present invention;

[0044] Figure 9 is Figure 8Partial enlarged view of the cooperation between the second connecting part and the second mating part.

[0045] Reference numerals:

[0046] 100, fixed bracket; 110, plate-like part; 111, mounting surface; 112, mounting groove; 113, first fastening hole; 120, column part; 121, first column section; 122, second column section; 130, clamping part; 131, first clamping part; 1311, first inclined platform part; 1312, first clamping plate part; 1313, second clamping plate part; 132, second clamping part; 1321, second inclined platform part; 1322, third clamping plate part; 1323, fourth clamping plate part; 140, first positioning part; 150, first connecting part; 151, first claw; 160, second connecting part; 170, second mating part; 180, abutting part; 190, third positioning groove; 200, microstrip line; 300, bottom plate; 400, coaxial cable. Detailed implementation manners

[0047] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0049] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0050] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0052] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0053] In the field of antenna communication technology, microwave transmission lines mainly include forms such as coaxial cables, microstrip lines, strip lines, waveguides or resonant cavities. In the actual application process, usually at least two forms of microwave transmission lines are combined. For example, a microstrip line and a coaxial cable are interconnected.

[0054] In the related art, an antenna includes a microstrip line, a coaxial cable, a bottom plate and a mounting plate. The microstrip line is installed on the mounting plate, and the input end and the output end of the microstrip line are respectively connected to the coaxial cable by welding. Among them, the microstrip line includes a conductor layer, a substrate layer and a grounding layer laminated along the thickness direction of the microstrip line. The conductor layer includes a microstrip line, at least one input end and at least one output end. The input end and the output end of the conductor layer are respectively used for electrically connecting to the coaxial cable. The mounting plate is detachably connected to the bottom plate, so as to install the microstrip line on the bottom plate.

[0055] However, after a period of time, the above-mentioned microstrip line will undergo mechanical deformation, resulting in a deterioration of the overall intermodulation value of the antenna. Among them, when the overall intermodulation value of the antenna deteriorates, it will interfere with the normal operation of the receiver, thus affecting the call quality.

[0056] After careful analysis, the inventors of the present disclosure believe that the main reason for the above problems is that the microstrip line is installed on the bottom plate through a mounting plate made of sheet metal process. During the installation process, the mounting plate will deform. Since the mounting plate is firmly connected to the microstrip line, the microstrip line is in surface contact with the mounting plate surface and abuts against the mounting plate, resulting in mechanical deformation of the substrate layer of the microstrip line. In addition, since the coaxial line is welded to the microstrip line by means of metallized vias, when the coaxial line is pulled, the coaxial line will drive the solder joints between it and the microstrip line to move, resulting in traction forces on the opposite ends of the microstrip line, causing mechanical deformation of the substrate layer.

[0057] In view of this, the inventors of the present disclosure provide a fixing bracket, which includes a plate-shaped portion, a plurality of column-shaped portions not on the same straight line, and a clamping portion provided on the plate-shaped portion. An installation surface for installing the microstrip line is provided on the plate-shaped portion. The free ends of the column-shaped portions are detachably connected to the bottom plate of the antenna, so that the plate-shaped portion and the column-shaped portions construct an installation platform for carrying the plate-shaped microstrip line. In this way, the installation process of the column-shaped portions and the bottom plate will not affect the microstrip line, and mechanical deformation of the microstrip line can be avoided. The clamping portion fixes the end of the coaxial line welded to the microstrip line on the plate-shaped portion. Thus, when the coaxial line is pulled, the coaxial line will pull the entire fixing bracket without causing the microstrip line to move on the plate-shaped portion, ensuring that the microstrip line will not undergo mechanical deformation.

[0058] The fixing bracket and antenna provided by the present invention will be described in detail below with reference to specific embodiments.

[0059] Figure 1 is a partial perspective view of the antenna of this embodiment; Figure 2 is a perspective view of the fixing bracket of this embodiment.

[0060] As Figure 1 shown, this embodiment provides a fixing bracket 100, which includes a plate-shaped portion 110, a plurality of column-shaped portions 120 not on the same straight line, and a clamping portion 130 provided on the plate-shaped portion 110.

[0061] Among them, as Figure 1 and Figure 2 shown, the plate-shaped portion 110 is provided with an installation surface 111 for firmly installing the microstrip line 200. The plate-shaped microstrip line 200 is in surface contact with the installation surface 111 and is firmly connected to the plate-shaped portion 110 to ensure that the plate-shaped portion 110 adapts to the shape of the microstrip line 200, thereby preventing mechanical deformation of the microstrip line 200 when it is installed on the plate-shaped portion 110.

[0062] As Figure 1 shown, the connecting end of the column part 120 is fixedly connected to the plate-like part 110, and the free end of the column part 120 is used to be detachably connected to the bottom plate 300 of the antenna. Thus, during the installation process of the column part 120 and the bottom plate 300, the microstrip line 200 will not be affected, so as to avoid mechanical deformation of the microstrip line 200.

[0063] As Figure 1 shown, the clamping part 130 is arranged at the edge of the installation surface 111 and is used to clamp the coaxial cable 400 electrically connected to the microstrip line 200, so that the position of the connection point between the microstrip line 200 and the coaxial cable 400 on the plate-like part 110 remains unchanged. Thus, mechanical deformation or warping of the microstrip line 200 can be avoided, and further, the intermodulation quality of the microstrip line 200 can be improved.

[0064] It should be noted that the connection point between the microstrip line 200 and the coaxial cable 400 refers to the connection location between the microstrip line 200 and the coaxial cable 400. For example, when the microstrip line 200 is welded to the coaxial cable 400, the connection point is the solder joint between the microstrip line 200 and the coaxial cable 400.

[0065] The installation platform is constructed by the plate-like part 110 and the column part 120, and the installation surface 111 is provided on this installation platform, so as to provide the installation environment required for the use of the microstrip line 200. In addition, the clamping part 130 ensures that the connection point between the coaxial cable 400 and the microstrip line 200 is not affected by external forces, so as to ensure that the microstrip line 200 will not have mechanical deformation or warping after installation, and further avoid the deterioration of the intermodulation index of the entire antenna caused by the mechanical deformation of the microstrip line 200.

[0066] The shape of the installation surface 111 can be determined according to the shape of the microstrip line 200, and no specific limitation is made here. For example, when the shape of the microstrip line 200 is rectangular, correspondingly, the shape of the installation surface 111 is rectangular. In addition, in order to improve the installation effect of the microstrip line 200, the flatness of the installation surface 111 can not exceed 0.2 mm.

[0067] In order to reduce the weight of the plate-like part 110, as Figure 2 shown, the plate-like part 110 inside the installation surface 111 can be a grid structure, and the node positions of the grid structure can be used to set the first fastening holes 113.

[0068] It can be understood that the installation surface 111 can be arranged on the top surface of the plate-like part 110 to reduce the assembly difficulty between the microstrip line 200 and the plate.

[0069] The end face of the connecting end of the column part 120 can be located above the top surface of the plate part 110, or the end face of the connecting end of the column part 120 can be flush with the top surface of the plate part 110. Additionally, the axis of the column part 120 can be perpendicular to the plate part 110 to reduce the volume of the fixing bracket 100. Of course, the axis of the column part 120 can also be inclined with respect to the plate part 110.

[0070] The number of the column parts 120 can be determined according to the shape and size of the plate part 110, and no specific limitation is made here. For example, when the shape of the plate part 110 is a rectangular plate structure, the number of the column parts 120 can be four, and one column part 120 corresponds to each of the four corners of the plate part 110.

[0071] It can be understood that multiple column parts 120 not on the same straight line ensure that the column parts 120 can support the plate part 110.

[0072] The plate part 110, the column part 120, and the clamping part 130 can be an integral structure, thereby improving the connection strength between the plate part 110 and the column part 120 and the connection strength between the plate part 110 and the clamping part 130. Additionally, the plate part 110, the column part 120, and the clamping part 130 can also be manufactured by injection molding to improve the manufacturing efficiency of the fixing bracket 100. Among them, the fixing bracket 100 can be injection molded with engineering plastics. For example, the material of the fixing bracket 100 is polycarbonate. Of course, the clamping part 130 and the plate part 110 can also be detachably connected. For example, the clamping part 130 is threadedly connected to the plate part 110, so that the clamping part 130 can clamp coaxial cables 400 of different specifications.

[0073] The plate part 110 can be tightly connected to the microstrip line 200 by means of snap connection, threaded connection, riveting, etc. For example, as Figure 2 shown, a plurality of first fastening holes 113 penetrating the plate part 110 are provided in the mounting surface 111, and second fastening holes corresponding to the plurality of first fastening holes 113 are provided on the microstrip line 200. Plastic rivets can be inserted into the corresponding first fastening holes 113 and second fastening holes to fix the plate part 110 and the microstrip line 200. Among them, plastic rivets can avoid interfering with the signals transmitted by the microstrip line 200.

[0074] The first fastening holes 113 can be circular holes or polygonal holes. For example, the first fastening holes 113 are circular holes.

[0075] The shape of the plate part 110 can be polygonal. For example, the shape of the plate part 110 is a polygon such as a quadrilateral, a pentagon, or a hexagon.

[0076] Figure 3 This is a cross-sectional view of the fixing bracket of this embodiment.

[0077] In a possible implementation, as Figure 2 and Figure 3 shown, an installation groove 112 for accommodating the microstrip line 200 is provided on the top surface of the plate-shaped portion 110, and the bottom wall of the installation groove 112 is the installation surface 111. Installing the microstrip line 200 in the installation groove 112 can prevent the plate-shaped portion 110 from deforming when the plate-shaped portion 110 is subjected to an external force, so as to avoid mechanical deformation of the microstrip line 200.

[0078] The shape of the installation groove 112 can be determined according to the shape of the microstrip line 200, and no specific limitation is made here. For example, the shape of the microstrip line 200 is rectangular, and correspondingly, the installation groove 112 is a rectangular groove. In addition, the depth of the installation groove 112 can be within 3 mm to avoid excessive thickness of the plate-shaped portion 110.

[0079] In a possible implementation, as Figure 3 shown, a strengthening groove is provided on the bottom surface of the plate-shaped portion 110, and the strengthening groove can improve the strength of the plate-shaped portion 110, so that when the plate-shaped portion 110 is impacted, the plate-shaped portion 110 will not deform, thereby avoiding mechanical deformation or warping of the microstrip line 200.

[0080] The shape of the strengthening groove can be the same as or different from the shape of the installation groove 112, and no specific limitation is made here. For example, the shape of the strengthening groove is the same as the shape of the installation groove 112. Specifically, both the strengthening groove and the installation groove 112 are rectangular grooves. In addition, the groove depth of the strengthening groove can be 0-3 mm to avoid excessive thickness of the plate-shaped portion 110.

[0081] In a possible implementation, as Figure 2 shown, the clamping portion 130 includes a first clamping portion 131 and a second clamping portion 132. Among them, the first clamping portion 131 and the second clamping portion 132 are respectively arranged at opposite ends of the plate-shaped portion 110, and the first clamping portion 131 is used to clamp the coaxial line 400 electrically connected to the input end of the microstrip line 200, and the second clamping portion 132 is used to clamp the coaxial line 400 electrically connected to the output end of the microstrip line 200.

[0082] The number of the first clamping portions 131 can be determined according to the number of the input ends of the microstrip line 200. For example, as Figure 1 and Figure 2 shown, the number of the input ends of the microstrip line 200 is one, and correspondingly, the number of the first clamping portions 131 is one.

[0083] The first clamping portion 131 can be fixedly connected to the coaxial line 400 by means of clamping or threaded connection, etc., so that one end of the coaxial line 400 electrically connected to the microstrip line 200 is fixed on the plate-shaped portion 110.

[0084] To ensure that the first clamping portion 131 can clamp the coaxial line 400, the length of the coaxial line 400 clamped by the first clamping portion 131 can be greater than 5 mm.

[0085] The number of the second clamping portions 132 can be determined according to the number of the input ends of the microstrip line 200. For example, as Figure 1 and Figure 2 shown, the number of the input ends of the microstrip line 200 is two. Correspondingly, the number of the second clamping portions 132 is two.

[0086] The second clamping portion 132 can be fixedly connected to the coaxial line 400 by means of snap connection or threaded connection, etc., so that one end of the coaxial line 400 electrically connected to the microstrip line 200 is fixed on the plate-shaped portion 110.

[0087] To ensure that the second clamping portion 132 can clamp the coaxial line 400, the length of the coaxial line 400 clamped by the second clamping portion 132 can be greater than 5 mm.

[0088] Figure 4 This is a partial enlarged view of the first clamping portion of this embodiment;

[0089] Optionally, as Figure 4 shown, the first clamping portion 131 includes a first inclined platform portion 1311 having a first inclined surface, and a first clamping plate portion 1312 and a second clamping plate portion 1313 provided on the first inclined surface. Among them, the first clamping plate portion 1312, the second clamping plate portion 1313 and the first inclined surface jointly define a first clamping cavity, and the central line of the first clamping cavity is inclined to the plate-shaped portion 110. Through the above settings, it can be ensured that the connection point between the coaxial line 400 and the microstrip line 200 is not affected by external forces, and mechanical deformation or warping of the microstrip line 200 is avoided.

[0090] The central line of the first clamping cavity is inclined to the plate-shaped portion 110, so that one end of the coaxial line 400 welded to the microstrip line 200 is inclined to the plate-shaped portion 110, so that the coaxial line 400 can be in good contact with the microstrip line 200.

[0091] The longitudinal section of the first clamping cavity can be a polygon. For example, the longitudinal section of the first clamping cavity is an unclosed triangle, quadrilateral or pentagon, etc. Among them, the longitudinal section of the first clamping cavity is perpendicular to the axis of the coaxial line 400.

[0092] The included angle between the central line of the first clamping cavity and the plate-shaped portion 110 can be determined according to requirements and is not specifically limited herein. For example, the included angle between the central line of the first clamping cavity and the plate-shaped portion 110 is 5° to 45°.

[0093] The first inclined surface causes the coaxial line 400 to bend, which can reduce the possibility of the coaxial line 400 pulling the solder joint and make the coaxial line 400 point to the microstrip line 200, so as to increase the welding area between the coaxial line 400 and the microstrip line 200.

[0094] Exemplarily, the first inclined surface may include a first planar segment, a first arc segment, and a second planar segment. The two ends of the first arc segment are respectively connected to the first planar segment and the second planar segment, and are used for the coaxial line 400 to be inserted, so as to reduce the size of the first clamping cavity. The first clamping plate portion 1312 and the second clamping plate portion 1313 may be respectively disposed on the first planar segment and the second planar segment.

[0095] It can be understood that the first clamping plate portion 1312 and the second clamping plate portion 1313 cooperate with each other to fix the coaxial line 400 on the first inclined platform portion 1311. Among them, both the first clamping plate portion 1312 and the second clamping plate portion 1313 can be in contact with the coaxial line 400 to fix the coaxial line 400, or both the first clamping plate portion 1312 and the second clamping plate portion 1313 are clamped with the coaxial line 400 to fix the coaxial.

[0096] Exemplarily, as Figure 4 shown, the first clamping plate portion 1312 includes a first arc plate segment and a second arc plate segment. The two ends of the first arc plate segment are respectively fixedly connected to the connection end of the second arc plate segment and the first inclined surface end of the first inclined platform portion 1311, and the centers of the circles corresponding to the first arc plate segment and the second arc plate segment are respectively located on both sides of the first clamping plate portion 1312.

[0097] The structure of the second clamping plate portion 1313 may be the same as the structure of the first clamping plate portion 1312. For example, as Figure 4 shown, the second clamping plate portion 1313 includes a third arc plate segment and a fourth arc plate segment. The two ends of the third arc plate segment are respectively fixedly connected to the connection end of the fourth arc plate segment and the first inclined surface end of the first inclined platform portion 1311, and the centers of the circles corresponding to the third arc plate segment and the fourth arc plate segment are respectively located on both sides of the second clamping plate portion 1313. In addition, the second arc plate segment and the fourth arc plate segment define a guiding opening, and the coaxial line 400 can be quickly snapped into the first clamping cavity.

[0098] Figure 5 It is a partial enlarged view of the second clamping portion of this embodiment.

[0099] Optionally, as Figure 5As shown, the second clamping portion 132 includes a second inclined platform portion 1321 having a second inclined surface, and a third clamping plate portion 1322 and a fourth clamping plate portion 1323 provided on the second inclined surface. Among them, the third clamping plate portion 1322, the fourth clamping plate portion 1323, and the second inclined surface jointly define a second clamping cavity, and the central line of the second clamping cavity is inclined with respect to the plate-like portion 110. Through the above arrangement, it can be ensured that the connection point between the coaxial line 400 and the microstrip line 200 is not affected by external forces, and mechanical deformation or warping of the microstrip line 200 is avoided.

[0100] The central line of the second clamping cavity is inclined with respect to the plate-like portion 110, so that one end of the coaxial line 400 welded to the microstrip line 200 is inclined with respect to the plate-like portion 110, so that the coaxial line 400 can contact and be firmly welded to the microstrip line 200.

[0101] The longitudinal section of the second clamping cavity can be a polygon. For example, the longitudinal section of the first clamping cavity is an unclosed polygon such as a triangle, a quadrilateral, or a pentagon. Among them, the longitudinal section of the second clamping cavity is perpendicular to the axis of the coaxial line 400.

[0102] The included angle between the central line of the second clamping cavity and the plate-like portion 110 can be determined according to requirements and is not specifically limited here. For example, the included angle between the central line of the second clamping cavity and the plate-like portion 110 is 5° to 45°.

[0103] The second inclined surface causes the coaxial line 400 to bend, which can reduce the possibility of the coaxial line 400 pulling the solder joint, and causes the coaxial line 400 to point to the microstrip line 200 to increase the welding area between the coaxial line 400 and the microstrip line 200.

[0104] Exemplarily, the second inclined surface can include a third plane segment, a second arc surface segment, and a fourth plane segment. The two ends of the second arc surface segment are respectively connected to the third plane segment and the fourth plane segment for the coaxial line 400 to be inserted to reduce the size of the second clamping cavity. The third clamping plate portion 1322 and the fourth clamping plate portion 1323 can be respectively provided on the third plane segment and the fourth plane segment.

[0105] It can be understood that the third clamping plate portion 1322 and the fourth clamping plate portion 1323 cooperate with each other so that the coaxial line 400 is fixed on the second inclined platform portion 1321. Among them, both the third clamping plate portion 1322 and the fourth clamping plate portion 1323 can be in contact with the coaxial line 400 to fix the coaxial line 400, or both the third clamping plate portion 1322 and the fourth clamping plate portion 1323 are clamped with the coaxial line 400 to fix the coaxial line.

[0106] Exemplarily, as Figure 5As shown, the third clamping plate portion 1322 includes a fifth arc plate segment and a sixth arc plate segment. The two ends of the fifth arc plate segment are respectively fastened to the connection end of the sixth arc plate segment and the second inclined surface end of the second inclined platform portion 1321. The centers of the circles corresponding to the fifth arc plate segment and the sixth arc plate segment are respectively located on both sides of the third clamping plate portion 1322.

[0107] The structure of the fourth clamping plate portion 1323 can be the same as that of the third clamping plate portion 1322. For example, as Figure 5 shown, the fourth clamping plate portion 1323 includes a seventh arc plate segment and an eighth arc plate segment. The two ends of the seventh arc plate segment are respectively fastened to the connection end of the eighth arc plate segment and the second inclined surface end of the second inclined platform portion 1321. The centers of the circles corresponding to the seventh arc plate segment and the eighth arc plate segment are respectively located on both sides of the fourth clamping plate portion 1323. In addition, the sixth arc plate segment and the eighth arc plate segment also define a guiding opening, and the coaxial line 400 can be quickly snapped into the second clamping cavity.

[0108] Figure 6 It is a partial enlarged view of the column portion of this embodiment.

[0109] In a possible implementation manner, as Figure 2 and Figure 6 shown, the free end of the column portion 120 is provided with a first positioning portion 140 and a first connecting portion 150.

[0110] Among them, the first positioning portion 140 is used to cooperate with the first mating portion provided on the bottom plate 300 to position the relative positions of the column portion 120 and the bottom plate 300 when assembling the column portion 120 and the bottom plate 300. The first connecting portion 150 is used to detachably connect with the mounting portion provided on the bottom plate 300, so that the fixing bracket 100 can be accurately installed on the bottom plate 300.

[0111] The first positioning portion 140 can be provided on the outer side wall of the column portion 120 or on the end surface of the free end of the column portion 120, and no specific limitation is made here.

[0112] The first connecting portion 150 can be provided on the outer wall of the column portion 120 or on the end surface of the free end of the column portion 120, and no specific limitation is made here. In addition, the cooperation between the first connecting portion 150 and the mounting portion can be in the form of snap connection, threaded connection, etc.

[0113] In a possible structure, the first positioning portion 140 is a rod-shaped structure, and the first mating portion is a first positioning hole or a first positioning groove for the first positioning portion 140 to insert, so as to position the relative positions of the column portion 120 and the bottom plate 300.

[0114] The shape of the first positioning portion 140 can be cylindrical, frustum-shaped, prismatic or other shapes. Correspondingly, the shape of the first positioning hole or the first positioning groove matches the shape of the first positioning portion 140. For example, when the shape of the first positioning portion 140 is frustum-shaped, the first positioning hole is a tapered hole or the first positioning groove is a tapered groove.

[0115] In another possible structure, the first positioning portion 140 is a second positioning groove, and the first fitting portion is a rod-shaped structure inserted into the second positioning groove, so as to position the relative positions of the column portion 120 and the bottom plate 300.

[0116] The shape of the second positioning groove can match the shape of the first fitting portion, and no specific limitation is made here. For example, the second positioning groove is a circular groove provided on the end face of the free end of the column portion 120. Correspondingly, the first fitting portion is cylindrical.

[0117] Optionally, as Figure 6 shown, the first connecting portion 150 includes two first claws 151 arranged at intervals. Among them, the first positioning portion 140 is located between the two first claws 151; the mounting portion is a clamping hole penetrating the bottom plate 300, and the first claws 151 are inserted into the clamping hole, so that the column portion 120 is clamped to the bottom plate 300.

[0118] The structure of the first claw 151 can be any claw structure in the prior art. For example, as Figure 3 shown, the first claw 151 includes a first card plate section and a second card plate section. The two ends of the first card plate section are respectively fixedly connected to the free end of the column portion 120 and the connection end of the second card plate section. The first card plate section and the second card plate section jointly define an angle for clamping with the bottom plate 300. In addition, in order to improve the speed at which the first claw 151 is inserted into the clamping hole, the longitudinal section of the second card plate section can be a right trapezoid, and the hypotenuse of the right trapezoid is arranged away from the first card plate section.

[0119] The clamping hole can be a polygonal hole. For example, the clamping hole is a polygonal hole such as a triangular, quadrilateral or pentagonal hole penetrating the bottom plate 300.

[0120] Figure 7 is a perspective view of two fixing brackets of this embodiment when stacked; Figure 8 is a left view of two fixing brackets of this embodiment when stacked; Figure 9 is Figure 8 a partial enlarged view of the cooperation between the second connecting portion and the second fitting portion in

[0121] In a possible implementation manner, as Figure 2As shown, a second connecting portion 160, a second mating portion 170, and an abutting portion 180 are provided on the outer sidewall of the column portion 120, and a third positioning groove 190 is provided on the end surface of the connecting end of the column portion 120. Among them, the second connecting portion 160 is provided close to the free end of the column portion 120, and the second mating portion 170 is provided close to the plate-like portion 110.

[0122] As Figures 7 - 9 shown, when at least two fixing brackets 100 are stacked, in adjacent two layers of fixing brackets 100, the column portion 120 of the upper layer is inserted into the third positioning groove 190 of the lower layer corresponding to the column portion 120; the abutting portion 180 of the upper layer abuts against the plate-like portion 110 of the lower layer, so that there is a gap between the plate-like portion 110 of the upper layer and the plate-like portion 110 of the lower layer; the second connecting portion 160 of the upper layer cooperates with the second mating portion 170 of the lower layer corresponding to the second connecting portion 160 to fix the adjacent two layers of fixing brackets 100. Through the above settings, multiple fixing brackets 100 can be stacked, so that multiple microstrip lines 200 can be stacked on the bottom plate 300 to meet the usage requirements of the microstrip lines 200.

[0123] When multiple fixing brackets 100 are stacked and assembled, the column portion 120 of the lowermost fixing bracket 100 is connected to the bottom plate 300, and then the remaining fixing brackets 100 are sequentially assembled on the lowermost fixing bracket 100.

[0124] The settings of the second connecting portion 160 and the third mating portion can detachably connect two adjacent fixing brackets 100 when multiple fixing brackets 100 are stacked. Among them, the cooperation mode of the second connecting portion 160 and the third mating portion can be a snap connection, a threaded connection, etc., and no specific limitation is made here.

[0125] The setting of the abutting portion 180 can make there be a gap for accommodating the microstrip line 200, the clamping portion 130, and the coaxial line 400 between two adjacent plate-like portions 110 when multiple fixing brackets 100 are stacked.

[0126] The setting of the third positioning groove 190 can position the relative positions of two adjacent fixing brackets 100 when multiple fixing brackets 100 are stacked.

[0127] In a possible structure, as Figure 6As shown, the column part 120 includes a first column section 121 and a second column section 122 which are coaxially arranged. Among them, the free end of the first column section 121 is fixedly connected to the plate-like part 110, and the first column section 121 and the second column section 122 define a stepped surface, and the stepped surface is the abutting part 180. The second column section 122 is used to be inserted into the third positioning groove 190 or detachably connected to the bottom plate 300 of the antenna. The second connecting part 160 and the second matching part 170 are both arranged on the first column section 121. Through the above arrangement, multiple fixing brackets 100 can be stacked.

[0128] The shape of the first column section 121 can be cylindrical or prismatic. For example, the shape of the first column section 121 is a prism with a quadrilateral cross-section.

[0129] The shape of the second column section 122 can be cylindrical or prismatic, and the shape of the second column section 122 can be the same as or different from the shape of the first column section 121. For example, the cross-section of the second column section 122 is a prism with a quadrilateral cross-section, and the cross-section of the second column section 122 is smaller than the cross-section of the first column section 121, so that a stepped surface can be defined.

[0130] The shape of the third positioning groove 190 can match the shape of the second column section 122 to position the relative positions of the second column section 122 and the plate-like part 110 assembled with the second column section 122. For example, when the cross-section of the second column part 120 is rectangular, correspondingly, as Figure 7 shown, the third positioning groove 190 is a rectangular groove.

[0131] In another possible structure, the abutting part 180 is a plate-like structure sleeved on the column part 120, and the abutting part 180 is located in the middle of the column part 120, so that there is a gap between two adjacent plate-like parts 110.

[0132] Exemplarily, the abutting part 180 is an annular plate-like structure, or the abutting part 180 includes a first abutting plate and a second abutting plate. The first abutting plate and the second abutting plate are respectively arranged at opposite ends of the column part 120, and the connecting ends of the first abutting plate and the second abutting plate are both fixedly connected to the column part 120.

[0133] Optionally, in order to reduce the weight of the column part 120, as Figure 3 shown, the third positioning groove 190 includes a first groove section and a second groove section which are coaxially arranged. The first groove section is located above the second groove section, and the first groove section and the second groove section define a stepped surface. The first groove section is used to cooperate with the free end of the column part 120 to position the positions of two adjacent fixing brackets 100.

[0134] In a possible structure, as Figure 9As shown, the second connecting portion 160 is a second claw, and the second mating portion 170 is a first clamping block that is clamped with the second claw. Thus, when multiple fixing brackets 100 are stacked, two adjacent fixing brackets 100 can be connected.

[0135] When the second claw of the upper layer is clamped with the first clamping block of the lower layer, the bottom surface of the second claw of the upper layer abuts against the bottom surface of the first clamping block of the lower layer, so that two adjacent fixing brackets 100 are clamped.

[0136] The second claw can adopt any structure in the prior art. For example, as Figure 9 shown, the second claw includes a first bent plate portion, a first flat plate portion, and a second flat plate portion that are connected in sequence. The free end of the first bent plate portion is fixedly connected to the side wall of the column portion 120. There is an included angle between the first flat plate portion and the second flat plate portion, so that when multiple fixing brackets 100 are stacked, the second flat plate portion can abut against the bottom surface of the first clamping block.

[0137] To improve the matching efficiency between the second flat plate portion and the first clamping block, as Figure 9 shown, the longitudinal section of the second flat plate portion is a right triangle. One of the straight-edge ends of the second flat plate portion is fixedly connected to the first flat plate portion, and the hypotenuse end of the second flat plate portion is arranged away from the first flat plate portion. In addition, as Figure 9 shown, the longitudinal section of the first clamping block can be a right trapezoid. The hypotenuse of the first clamping block is closely attached to the plate-shaped portion 110, so that the hypotenuse of the second flat plate portion can first contact the hypotenuse of the first clamping block.

[0138] In another possible structure, the second connecting portion 160 is a second clamping block, and the second mating portion 170 is a third claw that is clamped with the second clamping block. Thus, when multiple fixing brackets 100 are stacked, two adjacent fixing brackets 100 can be connected.

[0139] It can be understood that when the second clamping block of the upper layer is clamped with the third claw of the lower layer, the third claw of the upper layer is located below the second clamping block of the lower layer and abuts against the top surface of the second clamping block, so that two adjacent fixing brackets 100 are clamped.

[0140] The third claw can adopt any structure in the prior art. For example, the structure of the third claw is similar to the structure of the second claw. Specifically, the third claw includes a second bent plate portion, a third flat plate portion, and a fourth flat plate portion that are connected in sequence. The free end of the second bent plate portion is fixedly connected to the side wall of the column portion 120. There is an included angle between the third flat plate portion and the fourth flat plate portion, so that when multiple fixing brackets 100 are stacked, the fourth flat plate portion can abut against the top surface of the second clamping block.

[0141] To improve the mating efficiency between the fourth flat part and the second clamping block, the longitudinal section of the fourth flat part is a right triangle. One of the straight-edge ends of the fourth flat part is fixedly connected to the third flat part, and the hypotenuse end of the fourth flat part is arranged away from the third flat part. Additionally, the longitudinal section of the second clamping block can be a right trapezoid, and the hypotenuse of the second clamping block is closely arranged against the free end of the column part 120, so that the hypotenuse of the fourth flat part can first contact the hypotenuse of the second clamping block.

[0142] As Figure 1 shown, this embodiment also provides an antenna, which includes a microstrip line 200, a bottom plate 300, and the above-mentioned fixing bracket 100.

[0143] The fixing bracket 100 includes a column part 120 and a plate-shaped part 110. Among them, the free end of the column part 120 is detachably connected to the bottom plate 300. The microstrip line 200 is fixedly installed on the installation surface 111 of the plate-shaped part 110. Since the fixing bracket 100 can prevent the microstrip line 200 from generating mechanical deformation, the intermodulation index of the whole antenna can be ensured to be within the preset range.

[0144] The microstrip line 200 can be of any structure in the prior art. For example, the microstrip line 200 includes a conductor layer, a substrate layer, and a grounding layer laminated along the thickness direction of the microstrip line 200. The conductor layer includes a microstrip line 200 path, at least one input end, and at least one output end. The input end and the output end of the conductor layer are respectively used for welding with a coaxial line 400. Among them, the substrate layer can adopt a PCB (Printed circuit boards).

[0145] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixed bracket, characterized in that, It includes a plate-shaped part, a plurality of column parts not on the same straight line, and a clamping part arranged on the plate-shaped part; The plate-shaped part is provided with an installation surface for firmly installing a microstrip line; The connecting end of the column part is firmly connected to the plate-shaped part, and the free end of the column part is used for detachably connecting to the bottom plate of the antenna; The clamping part is arranged at the edge of the installation surface and is used for clamping a coaxial cable electrically connected to the microstrip line, so that the position of the connection point between the microstrip line and the coaxial cable on the plate-shaped part remains unchanged; A second connection part, a second matching part and an abutting part are arranged on the outer side wall of the column part, and a third positioning groove is arranged on the end surface of the connecting end of the column part; The second connection part is arranged close to the free end of the column part, and the second matching part is arranged close to the plate-shaped part; When at least two of the fixed brackets are stacked, in adjacent two layers of the fixed brackets, the column part of the upper layer is inserted into the third positioning groove of the lower layer corresponding to the column part; the abutting part of the upper layer abuts against the plate-shaped part of the lower layer, so that there is a gap between the plate-shaped part of the upper layer and the plate-shaped part of the lower layer; the second connection part of the upper layer cooperates with the second matching part of the lower layer corresponding to the second connection part to fix the adjacent two layers of the fixed brackets.

2. The fixed bracket according to claim 1, wherein, An installation groove for accommodating the microstrip line is arranged on the top surface of the plate-shaped part, and the bottom wall of the installation groove is the installation surface.

3. The fixing bracket according to claim 1, characterized in that, The clamping part includes a first clamping part and a second clamping part; The first clamping part and the second clamping part are respectively arranged at opposite ends of the plate-shaped part. The first clamping part is used for clamping the coaxial cable electrically connected to the input end of the microstrip line, and the second clamping part is used for clamping the coaxial cable electrically connected to the output end of the microstrip line.

4. The fixing bracket according to claim 3, characterized in that, The first clamping part includes a first inclined platform part with a first inclined surface, and a first clamping plate part and a second clamping plate part arranged on the first inclined surface; the first clamping plate part, the second clamping plate part and the first inclined surface jointly define a first clamping cavity, and the central line of the first clamping cavity is inclined to the plate-shaped part; and / or, The second clamping part includes a second inclined platform part with a second inclined surface, and a third clamping plate part and a fourth clamping plate part arranged on the second inclined surface; the third clamping plate part, the fourth clamping plate part and the second inclined surface jointly define a second clamping cavity, and the central line of the second clamping cavity is inclined to the plate-shaped part.

5. The fixing bracket according to claim 4, wherein, The included angle between the central line of the first clamping cavity and the plate-shaped part is 5° - 45°; or, the included angle between the central line of the second clamping cavity and the plate-shaped part is 5° - 45°.

6. The fixed bracket according to any one of claims 1-5, characterized in that, The free end of the column part is provided with a first positioning part and a first connection part; The first positioning part is used for cooperating with a first matching part arranged on the bottom plate to position the relative positions of the column part and the bottom plate when assembling the column part and the bottom plate; The first connection part is used for detachably connecting to an installation part arranged on the bottom plate.

7. The fixing bracket according to claim 6, characterized in that, The first positioning part is a rod-shaped structure, and the first matching part is a first positioning hole or a first positioning groove for inserting the first positioning part; or, The first positioning portion is a second positioning groove, and the first mating portion is a rod-shaped structure inserted into the second positioning groove.

8. The fixing bracket according to claim 6, wherein The first connecting portion includes two first claws spaced apart from each other; The first positioning portion is located between the two first claws; the mounting portion is a clamping hole penetrating the bottom plate, and the first claws are inserted into the clamping hole.

9. The fixing bracket according to any one of claims 1-5, characterized in that, The column portion includes a first column section and a second column section arranged coaxially; the free end of the first column section is fixedly connected to the plate-shaped portion, and the first column section and the second column section define a stepped surface, and the stepped surface is the abutting portion; the second column section is for being inserted into the third positioning groove or detachably connected to the bottom plate of the antenna; the second connecting portion and the second mating portion are both arranged on the first column section; or, The abutting portion is a plate-shaped structure sleeved on the column portion, and the abutting portion is located in the middle of the column portion.

10. The fixed bracket according to claim 9, characterized in that, The second connecting portion is a second claw, and the second mating portion is a first block engaged with the second claw; or, The second connecting portion is a second block, and the second mating portion is a third claw engaged with the second block.

11. An antenna, characterized in that, It includes a microstrip line, a bottom plate, and the fixing bracket according to any one of claims 1-10; The fixing bracket includes a column portion and a plate-shaped portion; The free end of the column portion is detachably connected to the bottom plate; The microstrip line is fixedly installed on the mounting surface of the plate-shaped portion.

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