CN216120735U

CN216120735U - Practical 5G WIFI external antenna

Info

Publication number: CN216120735U
Application number: CN202122527868.5U
Authority: CN
Inventors: 刘景雄; 刘峰
Original assignee: Shenzhen Ante Communication Technology Co ltd
Current assignee: Shenzhen Ante Communication Technology Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-03-22
Anticipated expiration: 2031-10-20

Abstract

The utility model discloses a practical 5G WIFI external antenna which comprises a shell, wherein the inside of the shell is fixedly connected with an antenna, the antenna comprises a PCB, the front end of the PCB is provided with a spring welding point, the surface of the spring welding point is welded with a spring oscillator, the spiral diameter of the spring oscillator is 4.7mm, the thread pitch is 2.3mm, the diameter of a screw is 0.8mm, and the spiral length is 5.5mm, the middle part of the PCB is respectively provided with a feed point, the surface of the feed point is welded with a coaxial cable, the tail end of the shell is provided with a fixed seat, the fixed seat is movably connected with the shell through a pin shaft, and the shell and the fixed seat are both made of ABS materials. This practical 5G WIFI external antenna has solved current external antenna overall structure spare part many, and the manufacturing procedure is complicated, and the processing cost is high, and the error is big, and radiation efficiency is low, the higher problem of in-service use limitation.

Description

Practical 5G WIFI external antenna

Technical Field

The utility model relates to the technical field of antennas, in particular to a practical 5G WIFI external antenna.

Background

The external wireless communication technology is realized by ABS rubber sleeves in the existing market, and generally, WIFI antennas of a router and a set top box are more, and as we step into the era of everything interconnection, everything interconnection is defined as combining people, processes, data and things together to enable network connection to become more relevant and valuable, and the everything interconnection converts information into action, so that new functions are created for enterprises, individuals and countries, richer experience and unprecedented economic development opportunities are brought, and the WIFI external antenna is suitable for market demands and matched with product appearance design; the antenna is a permanent development direction under the condition of unchanged performance.

However, the conventional external antenna has the disadvantages of multiple parts, complex processing procedures, high processing cost, large error, low radiation efficiency and high practical use limitation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a practical 5G WIFI external antenna, which solves the problems of more parts of the whole structure, complex processing procedures, high processing cost, large error, low radiation efficiency and higher practical use limitation of the conventional external antenna.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a practical 5G WIFI external antenna, which comprises an outer shell, the inside fixedly connected with antenna of shell, the antenna includes the PCB board, the front end of PCB board is provided with the spring welding point, the skin weld of spring welding point has the spring oscillator, the spiral diameter of spring oscillator is 4.7mm, the pitch is 2.3mm, the screw rod diameter is 0.8mm, helical length is 5.5mm, the middle part of PCB board is provided with the feed point respectively, the skin weld of feed point has coaxial cable.

Preferably, the tail end of shell is provided with the fixing base, the fixing base passes through round pin axle and shell swing joint, shell and fixing base all adopt the ABS material to make.

Preferably, the spring oscillator comprises spiral sections and straight sections, the number of the spiral sections is 2, the spiral sections are distributed on two sides of the straight sections, and fixed foam is arranged on the front side of the straight sections.

Preferably, the feeding point comprises a core welding point and a network cable grounding point, the core welding point is welded with the core of the coaxial cable, and the network cable grounding point is welded with the network cable of the coaxial cable.

Preferably, the coaxial cable is a cable with the diameter of 1.37mm, and the tail end of the coaxial cable is provided with an IPEX connector.

Preferably, the PCB adopts an FR4 substrate, the dielectric constant is 4.4, and the thickness of the board is 1.0 mm.

(III) advantageous effects

The utility model provides a practical 5G WIFI external antenna. Has the following beneficial effects:

according to the practical 5G WIFI external antenna, through the design of a spring oscillator of a PCB + double-spiral section, the 5G WIFI communication can be realized by matching the spiral section with the spiral diameter of 4.7mm, the thread pitch of 2.3mm, the diameter of a screw rod of 0.8mm and the spiral length of 5.5mm, the antenna design efficiency is high, the gain is simultaneously more than 4.5dbi, and the antenna has better radiation performance;

and spring, PCB board and coaxial cable conductor mutual welding design, then wrap up ABS plastics pole cover shell outward, the technology is comparatively simple, practice thrift the cost, improvement machining efficiency that can be great adopts coaxial cable and PCB welding to present the point simultaneously, and the processing flexibility is stronger, can satisfy the demand of vast customer, applicable in the design environment of diversified product.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural axial view of the present invention;

FIG. 3 is a dimensional diagram of a PCB board of the present invention;

FIG. 4 is a diagram of the dimensions of a spring oscillator according to the present invention;

FIG. 5 is a return loss plot of the present invention;

FIG. 6 is a 2D pattern of the E1 plane of the present invention;

FIG. 7 is a 2D view of the E2 plane of the present invention;

FIG. 8 is a H-plane 2D directional diagram of the present invention;

FIG. 9 is a 5150MHz3D pattern of the present invention;

FIG. 10 is a 5500MHz3D pattern of the present invention;

fig. 11 is a 5850MHz3D pattern of the present invention.

In the figure: 1. a housing; 2. an antenna; 21. a PCB board; 22. a spring weld point; 23. a spring vibrator; 231. a helical section; 232. a straight line segment; 24. a feed point; 241. a wire core welding point; 242. a network cable ground point; 25. a coaxial cable; 3. a fixed seat; 4. a pin shaft; 5. fixing foam; 6. IPEX joint.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution: a practical 5 GWIFISI external antenna comprises a shell 1, wherein an antenna 2 is fixedly connected inside the shell 1, and WIFI external antenna communication is realized; the antenna 2 comprises a PCB 21, a spring welding point 22 is arranged at the front end of the PCB 21, a spring oscillator 23 is welded on the surface of the spring welding point 22, the spiral diameter of the spring oscillator 23 is 4.7mm, the thread pitch is 2.3mm, the diameter of a screw is 0.8mm, the spiral length is 5.5mm, and 5G WIFI communication is achieved; the middle parts of the PCB boards 21 are respectively provided with the feeding points 24, the coaxial cables 25 are welded on the surfaces of the feeding points 24, the process is simple, the cost is saved, and the processing efficiency can be greatly improved.

The fixed seat 3 is arranged at the tail end of the shell 1, so that the antenna is convenient to mount; the fixed seat 3 is movably connected with the shell 1 through a pin shaft 4, so that the directivity of the antenna can be adjusted; the shell 1 and the fixing seat 3 are both made of ABS materials, and the structural strength of the antenna is guaranteed.

The spring oscillator 23 comprises spiral sections 231 and straight line sections 232, the number of the spiral sections 231 is 2, and the spiral sections are distributed on two sides of the straight line sections 232, so that the design requirements are met, and the stability of the antenna efficiency, the gain and the directional performance is ensured; the gain of cooperation PCB board realization reaches more than 4.5dbi, and the front side of straightway 232 is provided with fixed bubble cotton 5, makes things convenient for the spring oscillator to fix.

The feed point 24 comprises a core welding point 241 and a network cable grounding point 242, the core welding point 241 is welded with the core of the coaxial cable 25, and the network cable grounding point 242 is welded with the network cable of the coaxial cable 25, so that the design and connection requirements of the antenna circuit are met.

Coaxial cable 25 adopts the diameter to be 1.37 mm's cable, and coaxial cable 25's tail end is provided with IPEX and connects 6, makes things convenient for coaxial cable quick assembly disassembly.

The PCB 21 adopts an FR4 substrate, the dielectric constant is 4.4, the thickness of the board is 1.0mm, and the antenna performance index is better matched.

The design principle is as follows: f is the operating center frequency; l is the helical antenna length; n is the number of turns of the helix; d is the diameter of the helix;

the above setting parameters are as follows:

frequency f 5500MHZ

Wave speed c is 3X 108M (note: 108 should be 10 power of 8)

From the above, it is known that if a helical antenna is used, the center frequency is 5500MHZ, and the approximate values are required for practical fabrication.

The diameter of the helix is 4.7 mm; the spacing is 30.2 mm; the pitch is 2.3 mm; the diameter of the screw is 0.8 mm; the length of the helix is 5.5 mm.

The PCB board matching design adopts an FR4 substrate, and the dielectric constant is as follows: 4.4; the thickness of the plate is as follows: 1.0 mm; the value is 1/2 lambda wavelength for better matching antenna performance index.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a practical 5G WIFI external antenna, includes shell (1), its characterized in that: the inside fixedly connected with antenna (2) of shell (1), antenna (2) include PCB board (21), the front end of PCB board (21) is provided with spring welding point (22), the skin weld of spring welding point (22) has spring oscillator (23), the spiral diameter of spring oscillator (23) is 4.7mm, the pitch is 2.3mm, the screw rod diameter is 0.8mm, helical length is 5.5mm, the middle part of PCB board (21) is provided with feed point (24) respectively, the skin weld of feed point (24) has coaxial cable (25).

2. The utility model discloses a practical 5G WIFI external antenna of claim 1, its characterized in that: the tail end of shell (1) is provided with fixing base (3), fixing base (3) are through round pin axle (4) and shell (1) swing joint, shell (1) and fixing base (3) all adopt the ABS material to make.

3. The utility model discloses a practical 5G WIFI external antenna of claim 1, its characterized in that: the spring oscillator (23) comprises spiral sections (231) and straight sections (232), wherein the number of the spiral sections (231) is 2, the spiral sections are distributed on two sides of each straight section (232), and fixed foam (5) is arranged on the front side of each straight section (232).

4. The utility model discloses a practical 5G WIFI external antenna of claim 1, its characterized in that: the feeding point (24) comprises a core welding point (241) and a network cable grounding point (242), the core welding point (241) is welded with a core of the coaxial cable (25), and the network cable grounding point (242) is welded with a network cable of the coaxial cable (25).

5. The utility model discloses a practical 5G WIFI external antenna of claim 1, its characterized in that: the coaxial cable (25) adopts a cable with the diameter of 1.37mm, and the tail end of the coaxial cable (25) is provided with an IPEX joint (6).

6. The utility model discloses a practical 5G WIFI external antenna of claim 1, its characterized in that: the PCB (21) adopts an FR4 substrate, the dielectric constant is 4.4, and the thickness of the board is 1.0 mm.