Base station, antenna, microstrip line and coaxial cable transfer structure

Abstract

The present invention discloses a base station, an antenna and a transition structure of a microstrip line and a coaxial cable thereof. The transition structure comprises a microstrip line, a coaxial cable and a fixing seat. The core of the coaxial cable can be electrically connected to the microstrip line. The fixing seat is provided with a first through hole for the coaxial cable to pass through and a first connecting portion for electrically connecting to a reflector, and the fixing seat can be coupled and connected with the outer conductor of the coaxial cable. The transition structure of the microstrip line and the coaxial cable is simple in structure and easy to assemble; thus, the antenna using the transition structure of the microstrip line and the coaxial cable is simple in structure and easy to assemble; thus, the base station using the antenna is easy to assemble, and the assembly efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of antenna communication technology, and in particular to a base station, an antenna, a microstrip line and a coaxial cable switching structure thereof. Background Art

[0002] In the field of antenna communication technology, microwave transmission lines mainly include coaxial lines, microstrip lines, strip lines, waveguides or resonant cavities. In practical applications, it is often necessary to combine two or more of the above microwave transmission lines for application. Due to the advantages of easy processing and low cost of microstrip lines, the method of switching between microstrip lines and coaxial cables has been widely used. The traditional method of switching between microstrip lines and coaxial cables generally adopts a horizontal switching method, which has a complex structure and is not easy to assemble. Summary of the invention

[0003] Based on this, a base station, an antenna and a transition structure of a microstrip line and a coaxial cable are proposed. The transition structure of the microstrip line and the coaxial cable is simple in structure and easy to assemble; thus, the antenna using the transition structure of the microstrip line and the coaxial cable is simple in structure and easy to assemble; thus, the base station using the antenna is easy to assemble, thereby improving the assembly efficiency.

[0004] The technical solution is as follows:

[0005] On the one hand, a transition structure between a microstrip line and a coaxial cable is provided, comprising a microstrip line, a coaxial cable and a fixing seat, wherein the core of the coaxial cable can be electrically connected to the microstrip line, the fixing seat is provided with a first through hole for the coaxial cable to pass through, and a first connecting portion for electrically connecting to a reflecting plate, and the fixing seat can be coupled and connected to the outer conductor of the coaxial cable.

[0006] When assembling the above-mentioned transition structure between microstrip line and coaxial cable, the microstrip line is fixed on a reflector made of metal material; the coaxial cable is passed through the first through hole of the fixing seat, so that the core of the coaxial cable is electrically connected to the microstrip line, and the outer conductor of the coaxial cable is coupled and connected to the fixing seat; the fixing seat is electrically connected to the reflector by using the first connecting part of the fixing seat, thereby completing the transition between the microstrip line and the coaxial cable, and the structure is simple and easy to assemble. At the same time, after the coaxial cable passes through the first through hole of the fixing seat and is electrically connected to the microstrip line, not only can the inner wall of the first through hole be used to limit and fix the installation of the coaxial cable, but also the coaxial cable can be protected, and the coupling degree between the coaxial cable and the fixing seat can be improved, resonance can be reduced, and the consistency of standing waves and isolation can be improved.

[0007] The technical solution is further described below:

[0008] In one embodiment, one end of the microstrip line is provided with a second through hole for the core of the coaxial cable to pass through, and the transition structure between the microstrip line and the coaxial cable also includes a first conductive medium for electrically connecting the core of the coaxial cable to the microstrip line.

[0009] In one embodiment, the fixing seat is provided with a cavity, and the first through hole is arranged on a side wall of the cavity.

[0010] In one embodiment, the insulation skin of the coaxial cable is arranged corresponding to the inner wall of the first through hole, the outer conductor of the coaxial cable protrudes from the first through hole, and also includes a second conductive medium for coupling the outer conductor of the coaxial cable to the fixing seat.

[0011] On the other hand, an antenna is provided, including a reflector and a transition structure between the microstrip line and the coaxial cable, wherein the microstrip line is fixed to the reflector and the microstrip line and the reflector are spaced apart.

[0012] When assembling the above antenna, the microstrip line is fixed on a reflector made of metal material, and the microstrip line and the reflector are spaced apart; the coaxial cable is passed through the first through hole of the fixing seat, so that the core of the coaxial cable is electrically connected to the microstrip line, and the outer conductor of the coaxial cable is coupled and connected to the fixing seat; the fixing seat is electrically connected to the reflector by using the first connecting part of the fixing seat, thereby completing the transfer between the microstrip line and the coaxial cable, and the structure is simple and easy to assemble. At the same time, after the coaxial cable passes through the first through hole of the fixing seat and is electrically connected to the microstrip line, not only can the inner wall of the first through hole be used to limit and fix the installation of the coaxial cable, but also the coaxial cable can be protected, and the coupling degree between the coaxial cable and the fixing seat can be improved, resonance can be reduced, and the consistency of standing waves and isolation can be improved.

[0013] In one embodiment, the microstrip line is fixed on the upper surface of the reflector, the fixing seat is arranged below the reflector, and the reflector is provided with a third through hole for the coaxial cable to pass through.

[0014] In one embodiment, the first connecting portion is configured as a first protrusion, and the antenna also includes a first insulating member arranged between the fixing seat and the lower surface of the reflecting plate, the first insulating member is provided with a fourth through hole for allowing the first protrusion to pass through, and a fifth through hole for allowing the coaxial cable to pass through, and the fifth through hole is connected to the third through hole.

[0015] In one embodiment, the first insulating member is further provided with a first positioning portion, and the reflective plate is provided with a second positioning portion for positioning and cooperating with the first positioning portion.

[0016] In one embodiment, the microstrip line is fixed on the lower surface of the reflector, and the fixing seat is arranged below the microstrip line.

[0017] In one embodiment, the first connecting portion is configured as a second protrusion, and the antenna further includes a second insulating member disposed between the microstrip line and the lower surface of the reflector, and the second insulating member is provided with a sixth through hole for the second protrusion to pass through.

[0018] In one embodiment, the second insulating member is further provided with a third positioning portion, and the reflective plate is provided with a fourth positioning portion for positioning and cooperating with the third positioning portion.

[0019] In one of the embodiments, the antenna further includes a clamping member, and the clamping member is used to clamp the microstrip line onto the reflector.

[0020] On the other hand, a base station is provided, comprising the antenna.

[0021] During the construction of the above-mentioned base station, the microstrip line is fixed on a reflector made of metal; the coaxial cable is passed through the first through hole of the fixing seat, so that the core of the coaxial cable is electrically connected to the microstrip line, and the outer conductor of the coaxial cable is coupled and connected to the fixing seat; the fixing seat is electrically connected to the reflector by using the first connecting portion of the fixing seat, thereby completing the transfer between the microstrip line and the coaxial cable, which has a simple structure and is easy to assemble, with high assembly efficiency. At the same time, after the coaxial cable passes through the first through hole of the fixing seat and is electrically connected to the microstrip line, not only can the inner wall of the first through hole be used to limit and fix the installation of the coaxial cable, but it can also protect the coaxial cable, and can also improve the coupling degree between the coaxial cable and the fixing seat, reduce resonance, and improve the consistency of standing waves and isolation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An exploded view of an antenna according to an embodiment;

[0023] Figure 2 for Figure 1 A cross-sectional view of the antenna after assembly;

[0024] Figure 3 An exploded view of an antenna according to another embodiment;

[0025] Figure 4 for Figure 3 A cross-sectional view of the assembled antenna.

[0026] Description of reference numerals:

[0027] 100, microstrip line, 110, second through hole, 200, coaxial cable, 210, core, 220, outer conductor, 230, insulating skin, 300, fixing seat, 310, first through hole, 320, first connecting part, 321, first protrusion, 322, second protrusion, 330, cavity, 400, reflecting plate, 410, upper surface, 420, lower surface, 430, third through hole, 510, first insulating member, 520, second insulating member, 521, sixth through hole, 600, snap-on member. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0029] It should be noted that when an element is referred to as being "disposed on" or "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is referred to as being "fixed on" another element, or being "fixedly connected" to another element, they may be fixed in a detachable manner or in a non-detachable manner. When an element is considered to be "connected" or "rotatably connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to restrict the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] The terms "first", "second", "third" and the like in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0032] like Figure 1 and Figure 2As shown, in one embodiment, a transition structure of a microstrip line 100 and a coaxial cable 200 is provided, including the microstrip line 100, the coaxial cable 200 and a fixing seat 300, the core 210 of the coaxial cable 200 can be electrically connected to the microstrip line 100, the fixing seat 300 is provided with a first through hole 310 for the coaxial cable 200 to pass through, and a first connecting portion 320 for electrically connecting to a reflector 400, and the fixing seat 300 can be coupled and connected to the outer conductor 220 of the coaxial cable 200.

[0033] When assembling the transition structure of the microstrip line 100 and the coaxial cable 200 of the above embodiment, the microstrip line 100 is fixed on a reflector 400 made of a metal material; the coaxial cable 200 is passed through the first through hole 310 of the fixing base 300, so that the core 210 of the coaxial cable 200 is electrically connected to the microstrip line 100, and the outer conductor 220 of the coaxial cable 200 is coupled and connected to the fixing base 300; the first connecting portion 320 of the fixing base 300 is used to electrically connect the fixing base 300 to the reflector 400, thereby completing the transition between the microstrip line 100 and the coaxial cable 200, and the structure is simple and easy to assemble. At the same time, after the coaxial cable 200 passes through the first through hole 310 of the fixing base 300 and is electrically connected to the microstrip line 100, not only can the inner wall of the first through hole 310 be used to limit and fix the installation of the coaxial cable 200, but also the coaxial cable 200 can be protected, and the coupling degree between the coaxial cable 200 and the fixing base 300 can be improved, resonance can be reduced, and the consistency of standing waves and isolation can be improved.

[0034] The microstrip line 100 can be stamped from an aluminum plate or a copper plate, and can also be copper-plated or tin-plated on the surface of the microstrip line 100. The microstrip line 100 is fixed on the reflector 400 by means of clamping, riveting or plugging, and the microstrip line 100 and the metal reflector 400 are arranged relatively spaced apart.

[0035] The electrical connection between the core 210 of the coaxial cable 200 and the microstrip line 100 can be achieved directly through contact conduction, for example, the end surface of the core 210 can be directly brought into contact with the microstrip line 100 to achieve electrical connection; it can also be achieved by adding an intermediate conductive medium.

[0036] like Figure 2As shown, in one embodiment, a second through hole 110 is provided at one end of the microstrip line 100 for the core 210 of the coaxial cable 200 to pass through, and the transition structure also includes a first conductive medium (not shown) for electrically connecting the core 210 of the coaxial cable 200 to the microstrip line 100. In this way, after the core 210 of the coaxial cable 200 passes through the second through hole 110, the first conductive medium such as solder is filled into the second through hole 110 by welding or an electric soldering iron, thereby achieving electrical connection between the core 210 of the coaxial cable 200 and the microstrip line 100, and also enabling the core 210 of the coaxial cable 200 and the microstrip line 100 to achieve reliable and stable connection without problems of looseness or poor contact.

[0037] The fixing seat 300 can be made of metal or alloy materials such as aluminum, and can be manufactured by die-casting or pultrusion. The fixing seat 300 can be configured as a cylindrical or polygonal cylindrical structure.

[0038] like Figure 1 As shown, in one embodiment, the fixing base 300 is provided with a cavity 330. In this way, the weight of the fixing base 300 can be reduced and the production cost can be saved. The first through hole 310 is set on the side wall of the cavity 330. In this way, the coaxial cable 200 can smoothly pass through the first through hole 310, and the insulating skin 230 of the coaxial cable 200 can fit with the inner wall of the first through hole 310, ensuring that the coaxial cable 200 can remain stable in the first through hole 310 and will not easily shake or swing, so that the core 210 of the coaxial cable 200 can be stably electrically connected to the microstrip line 100, and also ensure that the outer conductor 220 of the coaxial cable 200 can be stably coupled to the fixing base 300. The diameter of the first through hole 310 can be set to be slightly smaller than, equal to or slightly larger than the outer diameter of the coaxial cable 200, and can be flexibly adjusted according to actual conditions.

[0039] like Figure 2As shown, based on any of the above embodiments, the insulating skin 230 of the coaxial cable 200 is arranged corresponding to the inner wall of the first through hole 310. In this way, a thicker section of the coaxial cable 200 (the section where the insulating sheet 230 is located) is arranged corresponding to the inner wall of the first through hole 310, so that the coaxial cable 200 can be stably fixed. The outer conductor 220 of the coaxial cable 200 protrudes from the first through hole 310, and the transition structure also includes a second conductive medium (not shown) for coupling and connecting the outer conductor 220 of the coaxial cable 200 with the fixing seat 300. In this way, after the coaxial cable 200 passes through the first through hole 310 until the core 210 of the coaxial cable 200 is electrically connected to the microstrip line 100, the outer conductor 220 of the coaxial cable 200 protrudes out of the first through hole 310, and the second conductive medium such as solder is filled into the transition portion between the outer conductor 220 and the first through hole 310 by welding or electric soldering iron, thereby achieving the coupling connection between the outer conductor 220 of the coaxial cable 200 and the fixing seat 300. The coupling connection between the outer conductor 220 of the coaxial cable 200 and the fixing seat 300 can be further improved by electroplating copper or zinc on the surface of the fixing seat 300.

[0040] like Figures 1 to 4 As shown, in one embodiment, an antenna is also provided, including a reflector 400 and a transition structure between the microstrip line 100 and the coaxial cable 200 of any of the above embodiments, wherein the microstrip line 100 is fixed to the reflector 400 and the microstrip line 100 and the reflector 400 are spaced apart.

[0041] When assembling the antenna of the above embodiment, the microstrip line 100 is fixed on the reflector 400 made of metal material, and the microstrip line 100 and the reflector 400 are arranged at a distance; the coaxial cable 200 is passed through the first through hole 310 of the fixing base 300, so that the core 210 of the coaxial cable 200 is electrically connected to the microstrip line 100, and the outer conductor 220 of the coaxial cable 200 is coupled and connected to the fixing base 300; the first connecting portion 320 of the fixing base 300 is used to electrically connect the fixing base 300 and the reflector 400, thereby completing the transfer of the microstrip line 100 and the coaxial cable 200, and the structure is simple and easy to assemble. At the same time, after the coaxial cable 200 passes through the first through hole 310 of the fixing base 300 and is electrically connected to the microstrip line 100, not only can the inner wall of the first through hole 310 be used to limit and fix the installation of the coaxial cable 200, but also the coaxial cable 200 can be protected, and the coupling degree between the coaxial cable 200 and the fixing base 300 can be improved, resonance can be reduced, and the consistency of standing waves and isolation can be improved.

[0042] According to different use environments, the microstrip line 100 can be fixed on the upper surface 410 or the lower surface 420 of the reflection plate 400 .

[0043] like Figure 1 and Figure 2 As shown, in one embodiment, the microstrip line 100 is fixed on the upper surface 410 of the reflector 400, the fixing base 300 is arranged below the reflector 400, and the reflector 400 is provided with a third through hole 430 for the coaxial cable 200 to pass through. In this way, the microstrip line 100 is fixed on the upper surface 410 of the reflector 400, and the microstrip line 100 and the upper surface 410 of the reflector 400 are arranged at intervals. The coaxial cable 200 passes through the first through hole 310 of the fixing base 300 and the third through hole 430 of the reflector 400 until the core 210 of the coaxial cable 200 is electrically connected to the microstrip line 100, thereby completing the transfer of the microstrip line 100 and the coaxial cable 200. Among them, the fixing base 300 is electrically connected to the lower surface 420 of the reflector 400 through the first connecting portion 320.

[0044] like Figure 2 As shown, further, the first connecting portion 320 is set as a first protrusion 321, and the antenna also includes a first insulating member 510 arranged between the fixing seat 300 and the lower surface 420 of the reflecting plate 400, and the first insulating member 510 is provided with a fourth through hole (not shown) for the first protrusion 321 to pass through, and a fifth through hole (not shown) for the coaxial cable 200 to pass through, and the fifth through hole is connected to the third through hole 430. In this way, the electrical connection between the fixing seat 300 and the reflecting plate 400 can be achieved by only making the first protrusion 321 pass through the fourth through hole and making the end face of the first protrusion 321 fit with the lower surface 420 of the reflecting plate 400. Combined with the insulating effect of the first insulating member 510, the contact area between the fixing seat 300 and the reflecting plate 400 is reduced, and the risk of poor contact between the fixing seat 300 and the reflecting plate 400 is reduced. The microstrip line 100 is fixed on the upper surface 410 of the reflector 400, and the microstrip line 100 is spaced apart from the upper surface 410 of the reflector 400. The coaxial cable 200 is passed through the first through hole 310 of the fixing seat 300, the fifth through hole of the first insulating member 510, and the third through hole 430 of the reflector 400, until the core 210 of the coaxial cable 200 is electrically connected to the microstrip line 100, thereby completing the transfer of the microstrip line 100 and the coaxial cable 200. The first insulating member 510 can be an insulating pad, an insulating ring, or an insulating sheet, and can be made of plastic. Of course, the fourth through hole and the fifth through hole can be connected to form a through hole.

[0045] Furthermore, the first insulating member 510 is further provided with a first positioning portion (not shown), and the reflector 400 is provided with a second positioning portion (not shown) for positioning and cooperating with the first positioning portion. In this way, by utilizing the positioning and cooperating between the first positioning portion and the second positioning portion, the first insulating member 510 can be accurately installed at a preset position of the reflector 400, and then by utilizing the cooperation between the first protrusion 321 and the inner wall of the fourth through hole, the fixing seat 300 can accurately achieve cooperation with the reflector 400. The fixing seat 300 can be connected to the reflector 400 by riveting or bolting, and under the positioning and cooperating between the first positioning portion and the second positioning portion, the fixing seat 300 can be reliably and accurately installed with the reflector 400.

[0046] The positioning cooperation between the first positioning portion and the second positioning portion can be achieved by the existing positioning pin and positioning hole cooperation, or by the existing positioning protrusion and positioning groove cooperation, and it is only necessary to be able to position the assembly of the first insulating member 510 and the reflector 400.

[0047] like Figure 3 and Figure 4 As shown, in one embodiment, the microstrip line 100 is fixed on the lower surface 420 of the reflector 400, and the fixing seat 300 is arranged below the microstrip line 100. In this way, the microstrip line 100 is fixed on the lower surface 420 of the reflector 400, and the microstrip line 100 is spaced apart from the upper surface 410 of the reflector 400. The coaxial cable 200 is passed through the first through hole 310 of the fixing seat 300 until the core 210 of the coaxial cable 200 is electrically connected to the microstrip line 100, thereby completing the transfer of the microstrip line 100 and the coaxial cable 200. Among them, the fixing seat 300 is electrically connected to the lower surface 420 of the reflector 400 through the first connecting portion 320.

[0048] like Figure 4As shown, further, the first connecting portion 320 is set as a second protrusion 322, and the antenna also includes a second insulating member 520 arranged between the microstrip line 100 and the lower surface 420 of the reflector 400, and the second insulating member 520 is provided with a sixth through hole 521 for the second protrusion 322 to pass through. In this way, the electrical connection between the fixing seat 300 and the reflector 400 can be achieved by only making the second protrusion 322 pass through the sixth through hole 521 and making the end face of the second protrusion 322 fit with the lower surface 420 of the reflector 400. Combined with the insulating effect of the second insulating member 520, the contact area between the fixing seat 300 and the reflector 400 is reduced, and the risk of poor contact between the fixing seat 300 and the reflector 400 is reduced. The microstrip line 100 is fixed to the lower surface 420 of the reflector 400, and the microstrip line 100 and the lower surface 420 of the reflector 400 are arranged at intervals. The coaxial cable 200 passes through the first through hole 310 of the fixing base 300 until the core 210 of the coaxial cable 200 is electrically connected to the microstrip line 100, thereby completing the transition between the microstrip line 100 and the coaxial cable 200. The second insulating member 520 may be an insulating pad, an insulating ring or an insulating sheet, and may be made of plastic.

[0049] Furthermore, the second insulating member 520 is further provided with a third positioning portion (not shown), and the reflector 400 is provided with a fourth positioning portion (not shown) for positioning and cooperating with the third positioning portion. In this way, the second insulating member 520 can be accurately installed at a preset position of the reflector 400 by utilizing the positioning and cooperating between the third positioning portion and the fourth positioning portion, and the second protrusion 322 and the inner wall of the sixth through hole 521 are then used to enable the fixing seat 300 to accurately achieve the cooperation with the reflector 400. The fixing seat 300 and the reflector 400 can be connected by riveting or bolting, and under the positioning and cooperating effect of the third positioning portion and the fourth positioning portion, the fixing seat 300 can be reliably and accurately installed with the reflector 400.

[0050] The positioning cooperation between the third positioning portion and the fourth positioning portion can be achieved by the existing positioning pin and positioning hole cooperation, or by the existing positioning protrusion and positioning groove cooperation, and it is only necessary to be able to position the assembly of the second insulating member 520 and the reflector 400.

[0051] The microstrip line 100 can be fixed on the reflector 400 by means of clamping, riveting, etc., as long as the microstrip line 100 is stably fixed on the surface of the reflector 400 and spaced apart from the surface of the reflector 400.

[0052] like Figures 1 to 4As shown, in one embodiment, the antenna further includes a clamping member 600, and the clamping member 600 is used to clamp the microstrip line 100 to the reflector 400. In this way, the microstrip line 100 is clamped and fixed to the upper surface 410 or the lower surface 420 of the reflector 400 by using the clamping member 600, and the microstrip line 100 is arranged at a distance from the upper surface 410 or the lower surface 420 of the reflector 400, which is simple and fast, and convenient for disassembly and assembly. The clamping member 600 can adopt the existing buckle form or the clamping seat form, and a corresponding notch for installing the clamping member 600 can also be opened on the corresponding surface of the reflector 400.

[0053] like Figure 1 and Figure 2 As shown, in one embodiment, the antenna includes two spaced-apart microstrip lines 100, each microstrip line 100 is fixed to the upper surface 410 of the reflecting plate 400 by two clamping members 600, and each microstrip line 100 is spaced-apart from the reflecting plate 400, there are two coaxial cables 200, and the reflecting plate 400 is provided with two third through holes 430 for the coaxial cables 200 to pass through, the fixing seat 300 is installed below the reflecting plate 400, and the fixing seat 300 is electrically connected to the lower surface 420 of the reflecting plate 400 through the first protrusion 321, and the two coaxial cables 200 respectively pass through the first through holes 310 corresponding to the fixing seat 300 and then pass through the corresponding third through holes 430, until the core 210 of each coaxial cable 200 is electrically connected to the corresponding microstrip line 100, thereby realizing the transfer between the coaxial cable 200 and the microstrip line 100.

[0054] like Figure 3 and Figure 4 As shown, in one embodiment, the antenna includes two spaced-apart microstrip lines 100, each microstrip line 100 is fixed to the upper surface 410 of the reflecting plate 400 by two clamping members 600, and each microstrip line 100 is spaced-apart from the reflecting plate 400, there are two coaxial cables 200, a fixing base 300 is installed below the reflecting plate 400, and the fixing base 300 is electrically connected to the lower surface 420 of the reflecting plate 400 through the second protrusion 322, and the two coaxial cables 200 respectively pass through the first through holes 310 corresponding to the fixing base 300 until the core 210 of each coaxial cable 200 is electrically connected to the corresponding microstrip line 100, thereby realizing the transfer of the coaxial cable 200 and the microstrip line 100.

[0055] In one embodiment, a base station is further provided, comprising the antenna of any one of the above embodiments.

[0056] During the construction of the base station of the above embodiment, the microstrip line 100 is fixed on the reflector 400 made of metal; the coaxial cable 200 is passed through the first through hole 310 of the fixing base 300, so that the core 210 of the coaxial cable 200 is electrically connected to the microstrip line 100, and the outer conductor 220 of the coaxial cable 200 is coupled and connected to the fixing base 300; the first connecting portion 320 of the fixing base 300 is used to electrically connect the fixing base 300 to the reflector 400, thereby completing the transfer of the microstrip line 100 and the coaxial cable 200, which has a simple structure and is easy to assemble with high assembly efficiency. At the same time, after the coaxial cable 200 passes through the first through hole 310 of the fixing base 300 and is electrically connected to the microstrip line 100, not only can the inner wall of the first through hole 310 be used to limit and fix the installation of the coaxial cable 200, but also the coaxial cable 200 can be protected, and the coupling degree between the coaxial cable 200 and the fixing base 300 can be improved, resonance can be reduced, and the consistency of standing waves and isolation can be improved.

[0057] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as restrictions on the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A microstrip line and coaxial cable transition structure, characterized in that: The invention comprises a microstrip line, a coaxial cable and a fixing seat, wherein the core of the coaxial cable can be electrically connected to the microstrip line, the fixing seat is provided with a first through hole for the coaxial cable to pass through, and a first connecting portion for electrically connecting to a reflecting plate, and the fixing seat can be coupled and connected with the outer conductor of the coaxial cable; the microstrip line is fixed on the reflecting plate by clamping, riveting or plugging, and the microstrip line and the reflecting plate are arranged with relative spacing; the fixing seat is provided with a cavity, the first through hole is arranged on the side wall of the cavity, the insulating skin of the coaxial cable is arranged corresponding to the inner wall of the first through hole, the outer conductor of the coaxial cable protrudes from the first through hole, and also comprises a second conductive medium for coupling and connecting the outer conductor of the coaxial cable with the fixing seat; In which, the microstrip line is fixed on the upper surface of the reflecting plate, the fixing seat is arranged below the reflecting plate, and the reflecting plate is provided with a third through hole for the coaxial cable to pass through, the first connecting portion is arranged as a first protrusion, and also includes a first insulating member arranged between the fixing seat and the lower surface of the reflecting plate, the first insulating member is provided with a fourth through hole for the first protrusion to pass through, and a fifth through hole for the coaxial cable to pass through, and the fifth through hole is connected to the third through hole; or, the microstrip line is fixed on the lower surface of the reflecting plate, the fixing seat is arranged below the microstrip line, the first connecting portion is arranged as a second protrusion, and also includes a second insulating member arranged between the microstrip line and the lower surface of the reflecting plate, and the second insulating member is provided with a sixth through hole for the second protrusion to pass through.

2. The microstrip line and coaxial cable transition structure according to claim 1, characterized in that: One end of the microstrip line is provided with a second through hole for the core of the coaxial cable to pass through, and also includes a first conductive medium for electrically connecting the core of the coaxial cable with the microstrip line.

3. The microstrip line and coaxial cable transition structure according to claim 1, characterized in that: The microstrip line is formed by stamping an aluminum plate or a copper plate.

4. The microstrip line and coaxial cable transition structure according to claim 1, characterized in that: The surface of the microstrip line is provided with copper plating or tin plating.

5. An antenna, characterized in that: The invention comprises a reflecting plate and a transition structure of a microstrip line and a coaxial cable as claimed in any one of claims 1 to 4, wherein the microstrip line is fixed on the reflecting plate and the microstrip line and the reflecting plate are spaced apart.

6. The antenna according to claim 5, characterized in that The fixing seat is made by die-casting or pultrusion.

7. The antenna according to claim 5, characterized in that: The fixing seat is configured as a cylindrical or polygonal cylindrical structure.

8. The antenna according to claim 5, characterized in that: The first insulating member is further provided with a first positioning portion, and the reflective plate is provided with a second positioning portion for positioning and cooperating with the first positioning portion.

9. The antenna according to claim 8, characterized in that The positioning cooperation between the first positioning portion and the second positioning portion is achieved by the cooperation between the positioning pin and the positioning hole, or by the cooperation between the positioning protrusion and the positioning groove.

10. The antenna according to claim 5, characterized in that: The fixing seat is connected to the reflecting plate by riveting or bolting.

11. The antenna according to claim 5, characterized in that: The second insulating member is further provided with a third positioning portion, and the reflective plate is provided with a fourth positioning portion for positioning and cooperating with the third positioning portion.

12. The antenna according to any one of claims 5 to 11, characterized in that: It also includes a clamping piece, which is used to clamp the microstrip line onto the reflecting plate.

13. A base station, characterized in that: Comprising the antenna according to any one of claims 5 to 12.

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