Columnar broadband high-gain omnidirectional antenna

Abstract

The utility model discloses a columnar broadband high-gain omnidirectional antenna, and particularly relates to the field of antenna manufacturing, and a mounting base provides positioning for the internal structure of the antenna; the number of the PCBs is two, and the unit radiators and the feed network are printed on the PCBs. The isolation support is installed on the installation base, and the two PCBs are installed at the two ends of the isolation support. The reflecting plate is fixedly connected to the surface of the PCB; the power divider is installed in a clamping groove between the installation base and the isolation support. And a protection mechanism is mounted on the outer side of the mounting base. Through the cooperation of the structures, the influence of the feed network on a directional diagram during array forming of the shunt-fed omnidirectional antenna is overcome, meanwhile, the feed network and the radiator are integrally designed, the processing is convenient, the cost is lower, the antenna assembly is greatly simplified, and the failure rate of the antenna is reduced. In addition, the pitch beam width and gain of the antenna can be adjusted according to the number of the radiators and the distance, and various application scenes can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna manufacturing, in particular to a columnar broadband high-gain omnidirectional antenna. Background Art

[0002] As base station antennas, especially mobile communication antennas, they are more widespread. Only when base station antennas cover every corner of the city can wireless communication signals be received. However, antennas used for special soundscapes have special requirements in addition to their own electrical performance, such as mechanical structure, suitable installation environment requirements, etc. Based on this, a cylindrical antenna is proposed.

[0003] Conventional cylindrical antenna feeding networks and radiators are designed separately, which makes production and processing inconvenient, and the production cost is high, and large-scale production is not feasible. The inventors provide a cylindrical broadband high-gain omnidirectional antenna to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a columnar broadband high-gain omnidirectional antenna, wherein the feeding network and the radiator are integrated into one design to reduce production costs.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A columnar broadband high-gain omnidirectional antenna comprises a mounting base, an isolation bracket, a PCB board, a power divider, and a reflector, wherein the mounting base provides positioning for the internal structure of the antenna; the PCB boards are two in total, and a unit radiator and a feeding network are printed on the PCB boards; the isolation bracket is mounted on the mounting base, and the two PCB boards are mounted at both ends of the isolation bracket; the reflector is fixedly connected to the surface of the PCB board; a power divider is installed in a card slot between the mounting base and the isolation bracket; and a protective mechanism is installed on the outer side of the mounting base.

[0007] As a further solution of the utility model: the protection mechanism includes a protective cover; a mounting groove is provided on the top of the mounting base, and the mounting groove is adapted to the shape of the bottom of the protective cover; connecting grooves are provided at both ends of the outer side of the protective cover; fixing grooves are respectively provided on both sides of the interior of the mounting groove, and a movable plug is slidably connected to the interior of the fixing groove.

[0008] As a further solution of the utility model: a sliding groove is provided on one side of the fixed groove, a sliding rod is slidably connected inside the sliding groove, and the other side of the sliding rod is fixedly connected to the insertion block; a support spring is fixedly connected to one side of the insertion block, and the other side of the support spring is fixedly connected to the fixed groove.

[0009] As a further solution of the utility model: one side surface of the insert block is designed to be an arc-shaped that gradually becomes longer from top to bottom.

[0010] As a further solution of the utility model: the side surface of the sliding rod is adapted to the cross-sectional shape of the sliding groove.

[0011] As a further solution of the utility model: a group of anti-collision strips are fixedly connected to the outer side of the protective cover, and the anti-collision strips are made of sponge material.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] This columnar broadband high-gain omnidirectional antenna provides positioning for the internal structure of the antenna through the mounting base; there are two PCB boards, on which the unit radiator and the feeding network are printed; the isolation bracket is installed on the mounting base, and the two PCB boards are installed at both ends of the isolation bracket; the reflector is fixedly connected to the surface of the PCB board; a power divider is arranged in the slot between the mounting base and the isolation bracket. The coordination of the above structures overcomes the influence of the feeding network on the radiation pattern when the parallel-fed omnidirectional antenna is arrayed. At the same time, the integrated design of the feeding network and the radiator is convenient for processing and has lower cost, which greatly simplifies the antenna assembly and reduces the antenna failure rate. In addition, the antenna pitch beam width and gain can be adjusted according to the number and spacing of the radiators, which can meet a variety of application scenarios.

[0014] In addition, for the columnar broadband high-gain omnidirectional antenna, when the protective cover is inserted into the installation slot, the bottom outer surface of the protective cover will contact the rear surface of the plug-in block, and the contact force will cause the plug-in block to slide into the fixed slot and compress the support spring at the same time. When the protective cover is completely inserted into the installation slot, the connection slot corresponds to the position of the plug-in block, so that the support spring loses its restriction and drives the plug-in block to be inserted into the connection slot, thereby completing the installation of the protective cover on the mounting base. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a cylindrical broadband high-gain omnidirectional antenna;

[0016] Figure 2 A schematic top view of the overall structure of a cylindrical broadband high-gain omnidirectional antenna;

[0017] Figure 3 A schematic diagram of the installation structure of a protective cover in a cylindrical broadband high-gain omnidirectional antenna;

[0018] Figure 4 The schematic diagram is a three-dimensional structure diagram of the cross section of the installation base in a columnar broadband high-gain omnidirectional antenna.

[0019] In the figure: 10, mounting base; 11, isolation bracket; 12, PCB board; 14, reflector; 20, protective cover; 21, anti-collision strip; 22, connecting groove; 30, mounting groove; 31, fixing groove; 32, plug-in block; 33, sliding rod; 34, sliding groove; 35, supporting spring. DETAILED DESCRIPTION

[0020] like Figure 1 , 2 As shown, a columnar broadband high-gain omnidirectional antenna comprises a mounting base 10, an isolation bracket 11, a PCB board 12, and a reflector 14. The mounting base 10 provides positioning for the internal structure of the antenna; the PCB boards 12 are two in total and are perpendicular to each other, and the unit radiator and the feeding network are printed on the PCB board 12; the isolation bracket 11 is mounted on the mounting base 10, and the two PCB boards 12 are mounted at both ends of the isolation bracket 11; the reflector 14 is fixedly connected to the surface of the PCB board 12; a power divider is arranged in the card slot between the mounting base 10 and the isolation bracket 11.

[0021] The reflector 14 optimizes the antenna radiation pattern performance and is also a supporting structure for the PCB 12. The PCB 12 is connected to the isolation bracket 11 through the reflector 14. Each of the two printed circuit boards has a feed outlet connected to the coaxial cable. The coaxial cable is routed along the isolation bracket 11 and is combined at the bottom of the PCB 12 through a power divider for final output.

[0022] The utility model overcomes the influence of the feeding network on the radiation pattern when the parallel-fed omnidirectional antenna is formed. At the same time, the feeding network and the radiator are integrated into one design, which is easy to process and has lower costs. It greatly simplifies the antenna assembly and reduces the antenna failure rate. In addition, the antenna pitch beam width and gain can be adjusted according to the number and spacing of the radiators, which can meet a variety of application scenarios.

[0023] When the columnar antenna is transported, it is easy to collide with the wall due to its high height, which may cause damage to the columnar antenna. Therefore, a protection mechanism is proposed.

[0024] refer to Figure 3 , 4 The protection mechanism includes a protection cover 20; a mounting groove 30 is provided on the top of the mounting base 10, and the mounting groove 30 is adapted to the shape of the bottom of the protection cover 20, so that when in use, the protection cover 20 can be inserted into the mounting groove 30.

[0025] Preferably, a group of anti-collision strips 21 are fixedly connected to the outer side of the protective cover 20, and the anti-collision strips 21 are made of sponge material. When the protective cover 20 collides with a foreign object, the anti-collision strips 21 are in direct contact with the object. The impact force during the collision causes the anti-collision strips 21 to deform, and the anti-collision strips 21 absorb part of the impact force of the collision when deformed, thereby achieving the effect of reducing the impact force generated during the collision.

[0026] refer to Figure 3 , 4 The protective cover 20 has connecting grooves 22 at both ends on the left and right sides of the outer side; the mounting groove 30 has fixing grooves 31 at both sides on the left and right sides of the inner side, and a movable plug block 32 is slidably connected to the inner side of the fixing groove 31 .

[0027] Specifically, refer to Figure 4 A sliding groove 34 is provided on the front side of the fixed groove 31, and a sliding rod 33 is slidably connected inside the sliding groove 34, and the rear side of the sliding rod 33 is fixedly connected to the front side of the plug block 32; a support spring 35 is fixedly connected to the front side of the plug block 32, and the rear side of the support spring 35 is fixedly connected to the fixed groove 31.

[0028] Preferably, the rear surface of the plug block 32 is an arc-shaped design that gradually becomes longer from top to bottom. When the protective cover 20 is inserted into the installation groove 30, the bottom outer surface of the protective cover 20 will contact the rear surface of the plug block 32. The contact force causes the plug block 32 to slide into the fixing groove 31 and compress the support spring 35. When the protective cover 20 is completely inserted into the installation groove 30, the connection groove 22 corresponds to the position of the plug block 32, so that the support spring 35 loses its restriction and drives the plug block 32 to be inserted into the connection groove 22, thereby completing the installation of the protective cover 20 on the mounting base 10.

[0029] Preferably, the side surface of the sliding rod 33 is adapted to the cross-sectional shape of the sliding groove 34, so as to achieve a guiding effect when the sliding rod 33 slides. When the protective cover 20 needs to be removed, the sliding rod 33 is pulled outward, and the sliding rod 33 moves outward to drive the plug 32 out of the connecting groove 22, and then the protective cover 20 can be taken out.

[0030] The working principle of the utility model is as follows: the mounting base 10 provides positioning for the internal structure of the antenna; there are two PCB boards 12, on which the unit radiator and the feeding network are printed; the isolation bracket 11 is mounted on the mounting base 10, and the two PCB boards 12 are mounted at both ends of the isolation bracket 11; the reflector 14 is fixedly connected to the surface of the PCB board 12; a power divider is arranged in the slot between the mounting base 10 and the isolation bracket 11. The coordination of the above structures overcomes the influence of the feeding network on the directional pattern when the parallel-fed omnidirectional antenna is arrayed. At the same time, the integrated design of the feeding network and the radiator is convenient for processing and has lower cost, which greatly simplifies the antenna assembly and reduces the antenna failure rate. In addition, the antenna pitch beam width and gain can be adjusted according to the number and spacing of the radiators, which can meet a variety of application scenarios.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A cylindrical broadband high-gain omnidirectional antenna, comprising a mounting base (10), an isolation bracket (11), a PCB board (12), and a reflector (14), characterized in that: The mounting base (10) provides positioning for the internal structure of the antenna; there are two PCB boards (12), and the unit radiator and the feeding network are printed on the PCB boards (12); the isolation bracket (11) is mounted on the mounting base (10), and the two PCB boards (12) are mounted at both ends of the isolation bracket (11); the reflection plate (14) is fixedly connected to the surface of the PCB board (12); a power divider is installed in the card slot between the mounting base (10) and the isolation bracket (11); and a protection mechanism is installed on the outer side of the mounting base (10).

2. A cylindrical broadband high-gain omnidirectional antenna according to claim 1, characterized in that: The protection mechanism comprises a protection cover (20); a mounting groove (30) is provided on the top of the mounting base (10), and the mounting groove (30) is adapted to the shape of the bottom of the protection cover (20); connecting grooves (22) are provided at both ends of the outer side of the protection cover (20); fixing grooves (31) are respectively provided on both sides of the interior of the mounting groove (30), and a movable plug-in block (32) is slidably connected inside the fixing groove (31).

3. A cylindrical broadband high-gain omnidirectional antenna according to claim 2, characterized in that: A sliding groove (34) is provided on one side of the fixed groove (31), a sliding rod (33) is slidably connected inside the sliding groove (34), and the other side of the sliding rod (33) is fixedly connected to the insert block (32); a support spring (35) is fixedly connected to one side of the insert block (32), and the other side of the support spring (35) is fixedly connected to the fixed groove (31).

4. A cylindrical broadband high-gain omnidirectional antenna according to claim 2, characterized in that: One side surface of the insert block (32) is designed to be an arc shape that gradually becomes longer from top to bottom.

5. The cylindrical broadband high-gain omnidirectional antenna according to claim 3, characterized in that: The side surface of the sliding rod (33) is adapted to the cross-sectional shape of the sliding groove (34).

6. A cylindrical broadband high-gain omnidirectional antenna according to claim 2, characterized in that: A group of anti-collision strips (21) are fixedly connected to the outer side of the protective cover (20), and the anti-collision strips (21) are made of sponge material.

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