CN215834685U

CN215834685U - UHF frequency channel cavity coupler

Info

Publication number: CN215834685U
Application number: CN202122315726.2U
Authority: CN
Inventors: 夏飞
Original assignee: Hefei Shunze Communication Co ltd
Current assignee: Hefei Shunze Communication Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-15
Anticipated expiration: 2031-09-18

Abstract

The utility model relates to the technical field of electronic information and mobile communication, and discloses a UHF frequency band cavity coupler which comprises a cavity body, wherein a cover plate body is fixedly arranged outside the cavity body, a cover plate boss is arranged inside the cover plate body, the left end of the cavity body is fixedly connected with an input port, the right end of the cavity body is fixedly connected with an output port, and the lower end of the left part of the cavity body is fixedly connected with a coupling port. When the device is used, a sinking groove is arranged in a cavity non-coupling area, the sinking depth of the sinking groove is 1-2mm, the thickness of the bottom of the sinking groove is kept to be 1-2mm, a threaded hole is formed in the wall of the cavity, an insulating tuning screw is arranged on the threaded hole, a main transmission line and an auxiliary transmission line are symmetrically and parallelly installed, the main transmission line, the auxiliary transmission line and a single section are designed and fixed through insulators, the transmission line, a connector and a load are soldered, and the load and the resistance are loaded.

Description

UHF frequency channel cavity coupler

Technical Field

The utility model relates to the technical field of electronic information and mobile communication, in particular to a UHF frequency band cavity coupler.

Background

With the popularization of modern wireless communication technology, UHF frequency networking is more and more, and a talkback communication system, subway communication coverage, Internet of things communication, a digital cluster and the like all use an UHF frequency band; in order to meet the networking requirements, due to the technical problems, many cavity couplers have the problems of low product stability and heavy debugging workload at present, and a novel low-cost cavity coupler is provided for the purpose.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the UHF frequency band cavity coupler which has the advantages of reducing the product cost, improving the product stability and reducing the debugging amount, and solves the problems of low product stability and large debugging workload in the prior art.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the UHF frequency band cavity coupler comprises a cavity body, wherein a cover plate body is fixedly mounted outside the cavity body, a cover plate boss is arranged inside the cover plate body, an input port is fixedly connected to the left end of the cavity body, an output port is fixedly connected to the right end of the cavity body, and a coupling port is fixedly connected to the lower end of the left portion of the cavity body.

Preferably, the cavity is internally and fixedly provided with a main transmission line and an auxiliary transmission line.

Preferably, an insulator is arranged in front of the main transmission line, the back of the insulator is fixedly connected with the inner wall of the cavity, the main transmission line and the auxiliary transmission line are symmetrically and parallelly installed, and the main transmission line and the auxiliary transmission line are designed in a single section and are fixed through the insulator.

Preferably, an insulator fixing groove is formed in the outer portion of the insulator and in the inner wall of the cavity, a non-coupling area sinking groove is formed in the lower portion of the inner portion of the cavity, and the depth of the sinking groove keeps the bottom of the cavity 1-2mm thick.

Preferably, the top of the cavity is provided with an insulating tuning screw, the inner wall of the cavity is provided with a threaded hole matched with the insulating tuning screw, the wall of the cavity is provided with a threaded hole, and the threaded hole is provided with the insulating tuning screw.

Preferably, the left end of the main transmission line is provided with a port fixing clamping groove on the inner wall of the cavity, the right end of the auxiliary transmission line is electrically connected with a load, and the load is a resistor.

Compared with the prior art, the utility model provides a UHF frequency band cavity coupler, which has the following beneficial effects:

1. when the UHF frequency band cavity coupler is used, a cavity non-coupling area is provided with a sinking groove, the sinking depth of the sinking groove and the thickness of the bottom of a keeping cavity are 1-2mm, the cavity wall of the cavity is provided with a threaded hole, an insulating tuning screw is arranged on the threaded hole, a main transmission line and an auxiliary transmission line are symmetrically and parallelly installed, the main transmission line, the auxiliary transmission line and a single section are designed and fixed through insulators, the transmission lines, a connector and a load position are soldered, and the load and the resistor are structurally designed to reduce the product cost, improve the stability of a product and reduce the debugging amount.

Drawings

FIG. 1 is a schematic view of a front side cover opening configuration of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a schematic side sectional view of the structure of the present invention.

Wherein: 100. a cavity; 200. a cover plate body; 201. a cover plate boss; 300. an input port; 301. an output port; 302. a coupling port; 400. a main transmission line; 401. a secondary transmission line; 500. an insulator; 600. insulator fixing grooves; 700. sinking a non-coupling area; 800. an insulated tuning screw; 900. the port is fixed with a clamping groove; 901. and (4) loading.

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 to 3, a UHF-band cavity coupler includes a cavity 100, a cover plate body 200 is fixedly mounted outside the cavity 100, a cover plate boss 201 is disposed inside the cover plate body 200, an input port 300 is fixedly connected to the left end of the cavity 100, an output port 301 is fixedly connected to the right end of the cavity 100, a coupling port 302 is fixedly connected to the lower end of the left portion of the cavity 100, a main transmission line 400 and an auxiliary transmission line 401 are fixedly mounted inside the cavity 100, an insulator 500 is disposed in front of the main transmission line 400, the rear of the insulator 500 is fixedly connected to the inner wall of the cavity 100, the main transmission line 400 and the auxiliary transmission line 401 are symmetrically and parallelly mounted, and the main transmission line 400 and the auxiliary transmission line 401 are designed in a single section and are fixed by the insulator 500.

The insulator 500 is provided with an insulator fixing groove 600 on the outer side and the inner wall of the cavity 100, a non-coupling region sinking groove 700 is provided below the inner portion of the cavity 100, the depth of the sinking groove keeps the bottom thickness of the cavity 1-2mm, the top of the cavity 100 is provided with an insulating tuning screw 800, the inner wall of the cavity 100 is provided with a threaded hole matched with the insulating tuning screw 800, the cavity wall of the cavity 100 is provided with a threaded hole, the threaded hole is provided with the insulating tuning screw 800, the left end of the main transmission line 400 is provided with a port fixing clamping groove 900 on the inner wall of the cavity 100, and the right end of the auxiliary transmission line 401 is electrically connected with a load 901.

When the device is used, a sinking groove is arranged in a non-coupling area of a cavity 100, the sinking depth of the sinking groove is 1-2mm, the thickness of the bottom of the cavity is kept, a threaded hole is formed in the cavity wall of the cavity 100, an insulating tuning screw 800 is arranged on the threaded hole, a main transmission line 400 and an auxiliary transmission line 401 are symmetrically and parallelly installed, the main transmission line 401 and the auxiliary transmission line 401 are designed in a single-section mode and are fixed through an insulator 500, the transmission lines, a connector and a load 901 are soldered, and the load 901 and a resistor are structurally designed, so that the product cost is reduced, the stability of a product is improved, and the debugging amount is reduced.

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. A UHF frequency channel cavity coupler comprises a cavity (100), and is characterized in that: the external fixed mounting of cavity (100) has apron body (200), the inside of apron body (200) is provided with apron boss (201), the left end fixedly connected with input port (300) of cavity (100), the right-hand member fixedly connected with output port (301) of cavity (100), the left part lower extreme fixedly connected with coupling port (302) of cavity (100).

2. The UHF band cavity coupler of claim 1, wherein: a main transmission line (400) and an auxiliary transmission line (401) are fixedly arranged in the cavity (100).

3. The UHF band cavity coupler of claim 2, wherein: an insulator (500) is arranged in front of the main transmission line (400), and the back of the insulator (500) is fixedly connected with the inner wall of the cavity (100).

4. The UHF band cavity coupler of claim 3, wherein: the insulator fixing groove (600) is formed in the outer portion of the insulator (500) and in the inner wall of the cavity (100), and the non-coupling area sinking groove (700) is formed in the lower portion of the inner portion of the cavity (100).

5. The UHF band cavity coupler of claim 1, wherein: the top of the cavity (100) is provided with an insulating tuning screw (800), and the inner wall of the cavity (100) is provided with a threaded hole matched with the insulating tuning screw (800).

6. The UHF band cavity coupler of claim 2, wherein: the left end of the main transmission line (400) is provided with a port fixing clamping groove (900) on the inner wall of the cavity (100), and the right end of the auxiliary transmission line (401) is electrically connected with a load (901).