CN215816415U

CN215816415U - 2.4G/5G 5dBi flat external antenna

Info

Publication number: CN215816415U
Application number: CN202121704527.4U
Authority: CN
Inventors: 赵正刚; 刘强; 宋振华
Original assignee: Jiangsu Zhengxu Defense Technology Co ltd
Current assignee: Jiangsu Zhengxu Defense Technology Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-02-11
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a 2.4G/5G 5dBi flat external antenna, which comprises an antenna body and an antenna fixing seat hinged with the antenna body; the antenna body comprises an antenna shell arranged on the outer side and a PCB circuit board fixedly arranged in the antenna shell; the antenna shell comprises a front cover and a rear cover which are detachably and fixedly connected; the PCB circuit board is clamped and fixed in the front cover and the rear cover; the cable penetrates through the antenna fixing seat and is electrically connected with the PCB for signal transmission. The antenna body is simple in structure, so that the antenna body is convenient to assemble, and the working efficiency during installation is improved; the antenna body only comprises the shell and the PCB, so that the internal structure of the antenna body is simplified, the assembly steps are reduced, and the cost of the antenna is reduced.

Description

2.4G/5G 5dBi flat external antenna

Technical Field

The utility model relates to the technical field of antennas, in particular to a 2.4G/5G 5dBi flat external antenna.

Background

Currently, an antenna is a component used in radio equipment for transmitting or receiving electromagnetic waves, which converts a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space) or vice versa, and is widely used in engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasure, remote sensing, radio astronomy, and the like. For the antenna on the terminal device, there are generally an internal antenna and an external antenna, wherein the internal antenna has a small volume and poor signal strength, and the external antenna has a large volume and good signal strength.

However, the internal structure of the conventional antenna is complicated to achieve a higher gain. And the production cost is also high.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a 2.4G/5G 5dBi flat external antenna; the technical problem can be effectively solved.

The utility model is realized by the following technical scheme:

A2.4G/5G 5dBi flat external antenna comprises an antenna body and an antenna fixing seat hinged with the antenna body; the antenna body comprises an antenna shell arranged on the outer side and a PCB circuit board fixedly arranged in the antenna shell; the antenna shell comprises a front cover and a rear cover which are detachably and fixedly connected; the PCB circuit board is clamped and fixed in the front cover and the rear cover; the cable penetrates through the antenna fixing seat and is electrically connected with the PCB for signal transmission.

Furthermore, the front cover and the rear cover are detachably and fixedly connected through a buckle or a fastener; when the front cover and the rear cover are detachably and fixedly connected through a fastener, the front cover and the rear cover are both made of ABS materials.

Furthermore, a notch is formed in the bottom of the antenna shell, and a rotating shaft is installed in the notch; the top of the antenna fixing seat is provided with a connecting piece, and the connecting piece is installed on the rotating shaft and can rotate around the rotating shaft.

Furthermore, the antenna fixing seat is provided with a clamping groove and an interface which correspond to the mounting hole on the finished product equipment.

Further, the cable comprises an inner conductor, an insulating layer, an outer conductor and an outer sheath; the inner conductor, the insulating layer, the outer conductor and the outer sheath are sequentially arranged from inside to outside.

Furthermore, two welding points which are respectively welded with the inner conductor and the outer conductor of the cable are arranged in the middle of the PCB; the point of welding with the inner conductor is disposed on the upper side of the point of welding with the outer conductor.

Further, when the cable is welded on the PCB, the outer sheath, the metal braid layer and the insulating layer on the top of the cable are stripped, so that the inner conductor of the cable is exposed in the air; peeling off the outer sheath at the position of the cable corresponding to the welding point of the outer conductor so that the outer conductor layer of the cable is exposed in the air; then the inner conductor of the cable is welded on the welding point of the inner conductor of the PCB through the solder wire; and the outer conductor of the cable is welded on the outer conductor welding point of the PCB through the solder wire.

Advantageous effects

Compared with the traditional prior art, the 2.4G/5G 5dBi flat external antenna provided by the utility model has the following beneficial effects:

(1) according to the technical scheme, the PCB inside the PCB can be conveniently assembled through the detachable front cover and the detachable rear cover; the PCB is clamped in the antenna shell and is fixed through a fastener. The antenna body is simple in structure, the antenna body is convenient to assemble, and the working efficiency during installation is improved. Meanwhile, the antenna body only consists of the shell and the PCB, so that the internal structure of the antenna body is simplified, the assembly steps are reduced, and the cost of the antenna is reduced. Moreover, the connection mode of the front cover and the rear cover can be disassembled and fixed, so that the antenna shell can be conveniently disassembled and assembled, and the later maintenance is further facilitated. In addition, the front cover and the rear cover are both made of ABS materials, so that the antenna shell is high in hardness and high in pressure resistance and is suitable for the external environment.

(2) According to the technical scheme, the copper tube structure of the traditional antenna is replaced by the PCB structure, the PCB is high in machining precision, and particularly when the antenna is very sensitive to the size and distance of some structural parts, the relevant size can be accurately controlled and the consistency is guaranteed by using the PCB.

(3) The insulating layer and the oversheath of cable among this technical scheme adopt and gather perfluor ethylene propylene material and make for the cable has better bending resistance nature, makes the cable still can keep its good performance when being buckled in the antenna case, can not appear breaking or crackle. Meanwhile, the working temperature range of the cable is wider and can reach-55 ℃ to +200 ℃. So that the antenna can be used in more environments.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a bottom view of the present invention.

Fig. 4 is a schematic diagram of the connection of the PCB circuit board in the present invention.

Fig. 5 is a schematic view of the overall structure of the cable of the present invention.

Fig. 6 is a horizontal plane pattern of the antenna of the present invention at each frequency.

Reference numbers in the drawings: 1-antenna body, 11-antenna body shell, 111-front cover, 112-rear cover, 113-notch, 114-rotating shaft, 12-PCB circuit board, 121-welding point, 2-antenna fixing seat, 21-interface, 211-card slot, 212-plug connector, 22-connecting piece, 3-cable, 31-inner conductor, 32-insulating layer, 33-outer conductor, 34-outer sheath and 4-connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

As shown in fig. 1-5, a 2.4G/5G 5dBi flat external antenna includes an antenna body 1 and an antenna fixing base 2 hinged to the antenna body 1. The antenna body 1 comprises an antenna shell 11 arranged on the outer side and a PCB 12 fixedly arranged in the antenna shell 11; the cable 3 penetrates through the antenna fixing seat 2 and is electrically connected with the PCB 12 for signal transmission. The bottom of the cable 3 is provided with a connector 4 connected with finished equipment, and the connector 4 is made of phosphor bronze gold-plated material.

The front view of the antenna housing 11 is rectangular, and the side view is sharp-edged; it comprises a front cover 111 and a rear cover 112 which are detachably and fixedly connected; the front cover 111 and the rear cover 112 are detachably and fixedly connected by a snap or a fastener. In this embodiment, the joint of the front cover 111 and the rear cover 112 is fixedly connected by a fastener, and the antenna housing 11 is made of ABS material, so that the antenna housing 11 has high hardness and high pressure resistance, and is suitable for external environments.

A detachable front cover 111 and a rear cover 112, which may facilitate assembly of the PCB 12 inside; the PCB 12 is fastened in the antenna housing 11 and fixed by a fastener. The antenna body 1 is simple in structure, the antenna body 1 is convenient to assemble, and the working efficiency during installation can be increased. Meanwhile, the cost of the antenna is reduced. Moreover, the front cover 111 and the rear cover 112 are detachably and fixedly connected, so that the antenna housing 11 is convenient to detach and mount, and the later maintenance is also convenient.

The bottom of the antenna housing 11 is provided with a notch 113 shaped like a Chinese character 'tu', and the notch 113 is located at the top and is provided with a wiring hole for arranging cables. And a rotating shaft 114 is detachably arranged between the inner walls of the two sides at the bottom of the notch 113. The bottom of the front cover 111 is provided with a radian, so that the antenna fixing seat 2 can be transposed.

The antenna fixing seat 2 comprises an interface 21 arranged at the bottom and connected with finished equipment, a shell of the interface 21 is in a cylindrical shape, and a clamping groove 211 and a plug connector 212 which correspond to mounting holes in the finished equipment are arranged on the interface 21, so that the antenna fixing seat 2 can be conveniently mounted on the finished equipment. The finished equipment can be routers, external cameras, signal emitting devices, controllers and other electronic products needing to send signals.

The top of the interface 21 is provided with a connecting piece 22 which is integrally formed with the interface 21 and protrudes upwards, and the connecting piece 22 is provided with a through hole for installing the rotating shaft 114. The antenna fixing base 2 is installed on a rotating shaft 114 at the bottom of the antenna housing 11 through a connecting piece 22, and the antenna fixing base 2 can rotate on the rotating shaft 114 to one side with an arc shape towards the front cover 111 around the rotating shaft 114; the movable angle between the antenna fixing base 2 and the rotating shaft 114 is 90 degrees. The interface 21 and the connecting piece 22 of the antenna fixing seat 2 are provided with wiring holes, so that the cable 3 can be conveniently installed.

The cable 3 comprises an inner conductor 31, an insulating layer 32, an outer conductor 33 and an outer sheath 34; the inner conductor 31, the insulating layer 32, the outer conductor 33 and the outer sheath 34 are arranged in sequence from inside to outside.

The inner conductor 31 is a single metal wire formed by twisting 7 tinned copper wires with the outer diameter of 0.102mm, and the outer diameter of the twisted single metal wire is 0.306 mm. The outer side of the single metal wire is coated with an insulating layer 32, the insulating layer 32 is made of fluorinated ethylene propylene, and the color of the insulating layer 32 is transparent.

The outer side of the insulating layer 32 is wrapped by an outer conductor 33, the outer conductor 33 is a metal braided layer, the metal conductor of the metal braided layer is braided by 5 tinned copper wires with the outer diameter of 0.05, the metal braided layer is obtained by braiding a plurality of metal conductors, and the braiding density is larger than or equal to 90%.

The outer side of the outer conductor 33 is sleeved with an outer sheath 34, the outer sheath 34 is made of fluorinated ethylene propylene, the color of the outer sheath 34 is gray, and the outer diameter of the outer sheath is 1mm to 1.2 mm.

The insulating layer 32 and the outer sheath 34 of the cable 3 are made of a fluorinated ethylene propylene material, so that the cable 3 has good bending resistance, and the cable 3 can still maintain good performance when being bent in the antenna body shell 11 without cracks or cracks. Meanwhile, the working temperature range of the cable 3 is wider and can reach-55 ℃ to +200 ℃. So that the antenna can be used in more environments.

The PCB 12 includes a dielectric substrate, a ground plane and a radiator. The ground plane and the radiator are printed on the dielectric substrate. The PCB 12 in this embodiment is used directly with the finished product ordered by the partner manufacturer, and is in the conventional prior art and will not be described repeatedly herein. (the applicant directly informs the other party of the technical requirements to be met by the PCB in the technical party, and the other party directly sets the technical requirements for production, so that the technical scheme of the applicant does not effectively improve the circuit and the structure in the PCB 12.)

The copper tube structure of the traditional antenna is replaced by the PCB 12 structure, the PCB 12 has high processing precision, and particularly when the antenna performance is very sensitive to the size and distance of some structural components, the relevant size can be accurately controlled and the consistency can be ensured by using the PCB 12.

On the PCB 12, two soldering points 121 respectively soldered to the inner conductor and the outer conductor of the cable are disposed in the middle of one side of the radiator. The point of welding with the inner conductor is disposed on the upper side of the point of welding with the outer conductor.

When the cable 3 is welded on the PCB 14, the outer sheath 34, the metal braid 33 and the insulating layer 32 on the top of the cable 3 are stripped, so that the inner conductor 31 of the cable 3 is exposed in the air; peeling off the outer sheath 34 at the position of the cable 3 corresponding to the outer conductor welding point, so that the outer conductor layer 33 of the cable 3 is exposed in the air; then the inner conductor 31 of the cable 3 is welded on the inner conductor welding point 141 of the PCB 14 through the solder wire; the outer conductor 33 of the cable 3 is welded on the outer conductor welding point 141 of the PCB 14 through a solder wire; so that the cable 3 is connected with the PCB 12 for signal transmission.

Claims

1. A2.4G/5G 5dBi flat external antenna comprises an antenna body (1) and an antenna fixing seat (2) hinged with the antenna body (1); the method is characterized in that: the antenna body (1) comprises an antenna shell (11) arranged on the outer side and a PCB circuit board (12) fixedly arranged in the antenna shell (11); the antenna shell (11) comprises a front cover (111) and a rear cover (112) which are detachably and fixedly connected; the PCB circuit board (12) is clamped and fixed in the front cover (111) and the rear cover (112); the cable (3) penetrates through the antenna fixing seat (2) and is electrically connected with the PCB (12) for signal transmission.

2. The 2.4G/5G 5dBi flat external antenna of claim 1, wherein: the front cover (111) and the rear cover (112) are detachably and fixedly connected through a buckle or a fastener; when the front cover (111) and the rear cover (112) are detachably and fixedly connected through a fastener, the front cover (111) and the rear cover (112) are both made of ABS materials.

3. The 2.4G/5G 5dBi flat external antenna of claim 1, wherein: a notch (113) is formed in the bottom of the antenna shell (11), and a rotating shaft (114) is installed in the notch (113); the top of the antenna fixing seat (2) is provided with a connecting piece (22), and the connecting piece (22) is installed on the rotating shaft (114) and can rotate around the rotating shaft (114).

4. The 2.4G/5G 5dBi flat external antenna of claim 1, wherein: and the antenna fixing seat (2) is provided with a clamping groove (211) and a plug connector (212) which correspond to the mounting hole on the finished product equipment.

5. The 2.4G/5G 5dBi flat external antenna of claim 1, wherein: the cable (3) comprises an inner conductor (31), an insulating layer (32), an outer conductor (33) and an outer sheath (34); the inner conductor (31), the insulating layer (32), the outer conductor (33) and the outer sheath (34) are sequentially arranged from inside to outside.

6. The 2.4G/5G 5dBi flat external antenna according to claim 5, wherein: two welding points (121) which are respectively welded with the inner conductor (31) and the outer conductor (33) of the cable (3) are arranged in the middle of the PCB (12); the point of welding with the inner conductor (31) is disposed above the point of welding with the outer conductor (33).

7. The 2.4G/5G 5dBi flat external antenna according to claim 6, wherein: when the cable (3) is welded on the PCB (12), the outer sheath (34), the metal braid and the insulating layer (32) on the top of the cable (3) are stripped, so that the inner conductor (31) of the cable (3) is exposed in the air; peeling off the outer sheath (34) of the cable (3) at the position corresponding to the welding point of the outer conductor so that the outer conductor layer of the cable (3) is exposed in the air; then the inner conductor (31) of the cable (3) is welded on the inner conductor welding point of the PCB (12) through a solder wire; and the outer conductor (33) of the cable (3) is welded on the outer conductor welding point of the PCB (12) through a solder wire.