CN108933322B

CN108933322B - SMA connection type double-frequency waterproof antenna

Info

Publication number: CN108933322B
Application number: CN201810754817.6A
Authority: CN
Inventors: 周愉
Original assignee: Suzhou Shuo Tian Communications Equipment Co ltd
Current assignee: Suzhou Shuo Tian Communications Equipment Co ltd
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2024-02-06
Anticipated expiration: 2038-07-11
Also published as: CN108933322A

Abstract

The invention discloses an SMA connection type double-frequency waterproof antenna which comprises a loop bar with a hollow structure, an SMA connector arranged at the tail end of the loop bar, a feeder line, a grounding copper pipe, a signal copper pipe and a screw rod, wherein the feeder line, the grounding copper pipe, the signal copper pipe and the screw rod are positioned on the loop bar and are sequentially connected, the feeder line is connected with the SMA connector, and the screw rod is connected with the top end of the loop bar; the end part of the SMA connector is of a threaded structure, a riveting nut is arranged at the tail end of the loop bar, and the threaded end of the SMA connector is in threaded connection with the riveting nut. According to the SMA connection type double-frequency waterproof antenna, the SMA connector, the feeder line, the grounding copper pipe, the signal copper pipe and the screw rod are arranged in the loop bar, the SMA connector is connected with the riveting nut in the loop bar, a closed environment is formed in the loop bar, the waterproof grade can reach IP67, the waterproof antenna can be perfectly suitable for various humid and multi-water environments, and the antenna can be ensured to well transmit or receive electromagnetic wave signals even in the humid environment.

Description

SMA connection type double-frequency waterproof antenna

Technical Field

The invention relates to the field of communication antennas, in particular to an SMA connection type antenna.

Background

With the popularization of informatization and networking and intellectualization, various devices have great requirements on the signal receiving performance. The transmission of the wireless signal is accomplished by the transmission of electromagnetic waves. However, the propagation of electromagnetic waves is not performed in an ideal free space, but is transmitted in a medium, and the influence of different mediums on radio waves is different, so that the loss of radio wave transmission is very large at a normal transmission distance.

The function of the antenna is to radiate and receive radio waves. During emission, converting high-frequency current into electromagnetic waves; upon reception, electromagnetic waves are converted into high-frequency currents. Therefore, the main technologies of the antenna include: 1. the antenna is provided with an electromagnetic open system. The antenna should perform as much as possible the interconversion of the guided wave energy and the electromagnetic wave energy. 2. The antenna is matched to the transmitter or receiver. 3. The antenna is to have directivity. The electromagnetic wave is concentrated in the determined direction as much as possible or is maximally accepted for the incoming wave in the determined direction. 4. The antenna has proper polarization and can emit or receive electromagnetic waves with specified polarization. 5. The antenna should have a sufficient operating band.

In addition, the signal transmission of the antenna is greatly affected by the difference in environment, and the electric conductivity and other characteristics of the antenna device components are affected by the humid environment, so that the transmission and reception of radio waves of the antenna are greatly affected.

Disclosure of Invention

The invention aims to: the invention aims to overcome the defects of the prior art, and provides an SMA connection type double-frequency waterproof antenna, which improves the waterproof performance of the antenna and ensures that the antenna can well transmit or receive electromagnetic wave signals even in a humid environment.

The technical scheme is as follows: the SMA connection type double-frequency waterproof antenna comprises a loop bar with a hollow structure, an SMA connector arranged at the tail end of the loop bar, and a feeder line, a grounding copper pipe, a signal copper pipe and a screw rod which are positioned in the loop bar and are sequentially connected, wherein the feeder line is connected with the SMA connector, and the screw rod is connected with the top end of the loop bar;

the end part of the SMA connector is of a threaded structure, a riveting nut is arranged at the tail end of the loop bar, and the threaded end of the SMA connector is in threaded connection with the riveting nut.

The further preferable technical scheme of the invention is that the loop bar is an integrally formed loop bar.

Preferably, the SMA connector comprises a main body, a frequency needle inserted into the main body and a rotating head positioned at the rear end of the main body, and the front end of the main body is a threaded structure connected with a riveting nut.

Preferably, the outer part of the frequency needle is wrapped and wound with teflon.

Preferably, waterproof washers are respectively arranged on the threaded end and the rotary head of the main body.

Preferably, the tail end of the loop bar is further provided with a dust cap, and the dust cap covers the outer side of the SMA connector and is nested on the loop bar to seal the loop bar.

Preferably, the screw rod is a double-body right-handed spring.

Preferably, the grounding copper pipe consists of a light copper pipe, a soft race and a rear plug.

Preferably, the signal copper pipe consists of a light copper pipe, a rear plug and a copper column.

The beneficial effects are that: (1) According to the SMA connection type double-frequency waterproof antenna, the SMA connector, the feeder line, the grounding copper pipe, the signal copper pipe and the screw rod are arranged in the loop bar, the SMA connector is connected with the riveting nut in the loop bar, a closed environment is formed in the loop bar, the waterproof grade can reach IP67, the waterproof antenna can be perfectly suitable for various humid and multi-water environments, and the antenna can be ensured to well transmit or receive electromagnetic wave signals even in the humid environment; meanwhile, the SMA connector is in threaded connection with the loop bar, so that the disassembly is convenient, and the use is convenient;

(2) According to the invention, the loop bar is an integrally formed loop bar, the threaded end and the rotary head of the SMA connector are respectively provided with the waterproof gasket, and the tail end of the loop bar is provided with the dustproof cap, so that the waterproof performance of the antenna can be further improved, and the effect of transmitting or receiving electromagnetic wave signals by the antenna is ensured;

(3) The spiral rod is a double-body right-handed spring, the internal space of the antenna is perfectly utilized, low loss and high gain are achieved for receiving and transmitting signals, and the signals can be omnidirectionally and spherically covered by 360 degrees.

Drawings

Fig. 1 is a schematic structural diagram of an SMA-connected dual-frequency waterproof antenna according to the present invention;

FIG. 2 is a schematic view of the structure of the SMA connector according to the present invention;

FIG. 3 is a schematic view of the structure of the loop bar of the present invention;

in the figure, 1-feeder, 2-loop bar, 3-SMA connector, 4-first ground copper tube, 5-second ground copper tube, 6-signal copper tube, 7-screw bar, 3 a-body, 3 b-frequency needle, 3 c-rotating head, 3 d-teflon, 3 e-washer.

Detailed Description

The technical scheme of the invention is described in detail below through the drawings, but the protection scope of the invention is not limited to the embodiments.

Examples: the utility model provides a waterproof antenna of SMA connection formula dual-frenquency, includes loop bar 2 of hollow structure, installs at loop bar 2 tail end's SMA connector 3 to and be located loop bar 2 and the feeder 1 that connects gradually, first ground copper pipe 4, signal copper pipe 6, second ground copper pipe 5 and hob 7, wherein feeder 1 is connected with SMA connector 3, and hob 7 is connected with loop bar 2's top.

The loop bar 2 is an integrally formed loop bar, the tail end of the loop bar 2 is also provided with a dust cap 9, and the dust cap 9 covers the outer side of the SMA connector 3 and is nested on the loop bar 2. The first grounding copper pipe 4 and the second grounding copper pipe 5 consist of three parts, namely a light copper pipe, a soft plug and a rear plug. The signal copper pipe 6 consists of a light copper pipe, a rear plug and a copper column.

A riveting nut is arranged inside the tail end of the loop bar 2. The SMA connector 3 comprises a main body 3a, a frequency needle 3b inserted into the main body 3a and a rotating head 3c positioned at the rear end of the main body 3a, wherein the front end of the main body 3a is of a threaded structure connected with a riveting nut, and the outer part of the frequency needle 3b is wrapped and wound with a teflon 3d. A waterproof gasket 3e is provided on the threaded end of the main body 3a and the swivel head 3c, respectively.

As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The SMA connection type double-frequency waterproof antenna is characterized by comprising a loop bar with a hollow structure, an SMA connector arranged at the tail end of the loop bar, a feeder line, a first grounding copper pipe, a signal copper pipe, a second grounding copper pipe and a screw rod, wherein the feeder line, the first grounding copper pipe, the signal copper pipe, the second grounding copper pipe and the screw rod are positioned in the loop bar and are sequentially connected, the feeder line is connected with the SMA connector, and the screw rod is connected with the top end of the loop bar;

the end part of the SMA connector is of a threaded structure, the tail end of the loop bar is provided with a riveting nut, and the threaded end of the SMA connector is in threaded connection with the riveting nut;

the SMA connector comprises a main body, a frequency needle inserted into the main body and a rotating head positioned at the rear end of the main body, wherein the front end of the main body is a threaded structure connected with a riveting nut, and waterproof gaskets are respectively arranged on the threaded end of the main body and the rotating head;

the tail end of the loop bar is also provided with a dust cap which covers the outer side of the SMA connector and is nested on the loop bar to seal the loop bar;

the spiral rod is a double-body right-handed spring.

2. The SMA connected dual band waterproof antenna of claim 1, wherein the loop bar is an integrally formed loop bar.

3. The SMA-connected dual-frequency waterproof antenna according to claim 1, wherein the outer wrap of the frequency pin is wrapped with teflon.

4. The SMA connection dual-frequency waterproof antenna of claim 1, wherein the ground copper tube is composed of three parts, an optical copper tube, a soft race and a rear plug.

5. The SMA connection type dual-frequency waterproof antenna according to claim 1, wherein the signal copper tube is composed of three parts, namely an optical copper tube, a rear plug and a copper column.