CN210607570U

CN210607570U - Waveguide coaxial converter

Info

Publication number: CN210607570U
Application number: CN201921261128.8U
Authority: CN
Inventors: 熊飞; 张伟
Original assignee: Shenzhen Huayang Technology Development Co Ltd
Current assignee: Shenzhen Huayang Technology Development Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-05-22
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a coaxial converter of waveguide, including coaxial connector and the waveguide chamber that has the inner conductor, still include the isolator and have the back lid of lock pin subassembly, the isolator respectively with the waveguide chamber reaches back lid fixed connection, coaxial connector is fixed in back cover and with lock pin subassembly electric connection, the isolator respectively with the inner conductor reaches lock pin subassembly electric connection. The traditional waveguide coaxial converter and the isolator are designed into a whole, a novel waveguide coaxial converter with a novel structure is formed, the isolation degree of the waveguide coaxial converter is effectively improved, the occupied space of parts is reduced, the assembly rate is improved, the development trend of miniaturization and portability of the whole machine is met, and the novel waveguide coaxial converter has a wide market prospect; simple structure and easy repair.

Description

Waveguide coaxial converter

Technical Field

The utility model relates to a microwave passive device technical field especially relates to coaxial converter of waveguide.

Background

Due to the rapid development of current communication technology, the technical index requirements of customers on microwave passive devices are continuously improved. The traditional waveguide coaxial converter structure gradually cannot meet the expected isolation requirement, so that the electrical property of the whole device is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: a high-isolation waveguide coaxial transformer is provided.

In order to solve the technical problem, the utility model discloses a technical scheme be: the waveguide coaxial converter comprises a coaxial connector, a waveguide cavity with an inner conductor, an isolator and a rear cover with a ferrule assembly, wherein the isolator is fixedly connected with the waveguide cavity and the rear cover respectively, the coaxial connector is fixed on the rear cover and electrically connected with the ferrule assembly, and the isolator is electrically connected with the inner conductor and the ferrule assembly respectively.

Furthermore, a first dielectric block is arranged on the waveguide cavity, and the inner conductor is sleeved in the first dielectric block.

Furthermore, a blending block is arranged in the waveguide cavity and electrically connected with the inner conductor.

Furthermore, the ferrule assembly comprises a second dielectric block and a microstrip ferrule, the second dielectric block is fixed on the rear cover, and the microstrip ferrule is sleeved in the second dielectric block.

Furthermore, one side of the rear cover, which is close to the waveguide cavity, is provided with a first positioning groove matched with the isolator.

Furthermore, one side of the waveguide cavity close to the rear cover is provided with a second positioning groove matched with the isolator.

Furthermore, the isolator comprises a cavity and a functional component arranged in the cavity, wherein the functional component comprises a first permanent magnet, an iron sheet, a first ferrite, a central conductor, a second ferrite and a second permanent magnet which are sequentially stacked from bottom to top, and the central conductor is electrically connected with the ferrule assembly and the inner conductor respectively.

Furthermore, a containing groove for containing the functional component is arranged in the cavity, cover plates are respectively arranged at the top and the bottom of the cavity, and the cover plates seal the containing groove.

Furthermore, the central conductor comprises three pins, three slotted holes for accommodating the pins are arranged in the cavity, the slotted holes are communicated with the accommodating grooves, the slotted holes and the pins are arranged in a one-to-one correspondence manner, third dielectric blocks for separating the pins from the wall surfaces of the slotted holes are respectively arranged in the two slotted holes, and a load electrically connected with the central conductor is arranged in the other slotted hole.

Further, the cavity comprises an upper shell and a lower shell which are connected.

The beneficial effects of the utility model reside in that: the traditional waveguide coaxial converter and the isolator are designed into a whole, a novel waveguide coaxial converter with a novel structure is formed, the isolation degree of the waveguide coaxial converter is effectively improved, the occupied space of parts is reduced, the assembly rate is improved, the development trend of miniaturization and portability of the whole machine is met, and the novel waveguide coaxial converter has a wide market prospect; simple structure, repair easily, accessible CNC one step machine-shaping.

Drawings

Fig. 1 is an exploded view of a waveguide coaxial converter according to a first embodiment of the present invention;

fig. 2 is an exploded view of an isolator in a waveguide coaxial converter according to a first embodiment of the present invention;

fig. 3 is a diagram illustrating an isolation test result of a waveguide coaxial converter according to a first embodiment of the present invention.

Description of reference numerals:

1. a waveguide cavity; 2. an inner conductor; 3. an isolator; 4. a ferrule assembly; 5. a rear cover; 6. a first dielectric block; 7. preparing blocks; 8. a first positioning groove; 9. an upper housing; 10. a lower housing; 11. a first permanent magnet; 12. iron sheets; 13. a first ferrite; 14. a center conductor; 15. a second ferrite; 16. a second permanent magnet; 17. a containing groove; 18. a cover plate; 19. a slot; 20. a third dielectric block; 21. and (4) loading.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 3, the waveguide coaxial converter includes a coaxial connector and a waveguide cavity 1 having an inner conductor 2, and further includes an isolator 3 and a rear cover 5 having a ferrule assembly 4, where the isolator 3 is respectively and fixedly connected to the waveguide cavity 1 and the rear cover 5, the coaxial connector is fixed on the rear cover 5 and electrically connected to the ferrule assembly 4, and the isolator 3 is respectively and electrically connected to the inner conductor 2 and the ferrule assembly 4.

From the above description, the beneficial effects of the present invention are: the traditional waveguide coaxial converter and the isolator 3 are designed into a whole, a novel waveguide coaxial converter with a novel structure is formed, the isolation degree of the waveguide coaxial converter is effectively improved, meanwhile, the occupied space of parts is reduced, the assembly rate is improved, the development trend of miniaturization and lightness of the whole machine is met, and the novel waveguide coaxial converter has a wide market prospect; simple structure, repair easily, accessible CNC one step machine-shaping.

Further, a first dielectric block 6 is arranged on the waveguide cavity 1, and the inner conductor 2 is sleeved in the first dielectric block 6.

As is apparent from the above description, the first dielectric block 6 functions to isolate the waveguide cavity 1 from the inner conductor 2.

Further, a blending block 7 is arranged in the waveguide cavity 1, and the blending block 7 is electrically connected with the inner conductor 2.

As can be seen from the above description, the manufacturer can adjust the performance of the waveguide coaxial converter by adjusting the adapting block 7.

Furthermore, the ferrule assembly 4 includes a second dielectric block and a microstrip ferrule, the second dielectric block is fixed on the rear cover 5, and the microstrip ferrule is sleeved in the second dielectric block.

As can be seen from the above description, the microstrip ferrule is isolated from the rear cover 5 by the second dielectric block.

Furthermore, a first positioning groove 8 matched with the isolator 3 is arranged on one side, close to the waveguide cavity 1, of the rear cover 5.

Furthermore, a second positioning groove matched with the isolator 3 is formed in one side, close to the rear cover 5, of the waveguide cavity 1.

It can be known from the above description that the arrangement of the first and second positioning grooves facilitates positioning and assembling of the isolator 3, the waveguide cavity 1 and the rear cover 5 by an assembler, which is beneficial to improving the assembling efficiency and reducing the manufacturing cost of the waveguide coaxial converter.

Further, the isolator 3 comprises a cavity and a functional component arranged in the cavity, the functional component comprises a first permanent magnet 11, an iron sheet 12, a first ferrite 13, a central conductor 14, a second ferrite 15 and a second permanent magnet 16 which are sequentially stacked from bottom to top, and the central conductor 14 is electrically connected with the ferrule assembly 4 and the inner conductor 2 respectively.

Further, a containing groove 17 for containing the functional component is arranged in the cavity, cover plates 18 are respectively arranged at the top and the bottom of the cavity, and the cover plates 18 seal the containing groove 17.

Further, the central conductor 14 includes three pins, three slots 19 for accommodating the pins are disposed in the cavity, the slots 19 are communicated with the accommodating groove 17, the slots 19 are disposed in one-to-one correspondence with the pins, third dielectric blocks 20 for separating the pins from the wall surfaces of the slots 19 are disposed in the two slots 19, and a load 21 electrically connected to the central conductor 14 is disposed in the other slot 19.

Further, the chamber comprises an upper shell 9 and a lower shell 10 which are connected.

As can be seen from the above description, the isolator 3 in the prior art can be used, which is beneficial to reducing the development cost.

Example one

Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: referring to fig. 1 and 2, the waveguide coaxial converter includes a coaxial connector (not shown), a waveguide cavity 1 having an inner conductor 2, an isolator 3 and a rear cover 5 having a ferrule assembly 4, wherein the isolator 3 is fixedly connected to the waveguide cavity 1 and the rear cover 5, the coaxial connector is fixed to the rear cover 5 and electrically connected to the ferrule assembly 4, and the isolator 3 is electrically connected to the inner conductor 2 and the ferrule assembly 4. The output end of the waveguide coaxial converter uses a coaxial isolator 3, and the input end of the waveguide coaxial converter uses a standard square waveguide port to realize the waveguide coaxial conversion with high integrated isolation. Optionally, the isolator 3 is respectively screwed with the rear cover 5 and the waveguide cavity 1.

The waveguide cavity 1 is provided with a first dielectric block 6, and the inner conductor 2 is sleeved in the first dielectric block 6.

A blending block 7 is arranged in the waveguide cavity 1, the blending block 7 is electrically connected with the inner conductor 2, in this embodiment, the blending block 7 is L-shaped, and a hole position for inserting one end of the inner conductor 2 is arranged on the blending block 7. The adjusting block 7 is fixed in the waveguide cavity 1 through screws.

The ferrule assembly 4 comprises a second dielectric block and a microstrip ferrule, the second dielectric block is fixed on the rear cover 5, and the microstrip ferrule is sleeved in the second dielectric block.

In order to improve the assembly efficiency, a first positioning groove 8 matched with the isolator 3 is arranged on one side of the rear cover 5 close to the waveguide cavity 1, and a second positioning groove (not shown) matched with the isolator 3 is arranged on one side of the waveguide cavity 1 close to the rear cover 5.

In detail, in this embodiment, the isolator 3 includes a cavity and a functional component disposed in the cavity, the cavity includes an upper casing 9 and a lower casing 10 connected to each other, optionally, the upper casing 9 is screwed with the lower casing 10, the functional component includes a first permanent magnet 11, an iron sheet 12, a first ferrite 13, a central conductor 14, a second ferrite 15 and a second permanent magnet 16 stacked in sequence from bottom to top, and the central conductor 14 is electrically connected to the ferrule assembly 4 and the inner conductor 2, respectively. Samarium cobalt magnet can be selected for use respectively to first, two permanent magnets.

Specifically, a containing groove 17 for containing the functional component is arranged in the cavity, cover plates 18 are respectively arranged at the top and the bottom of the cavity, and the cover plates 18 seal the containing groove 17.

In more detail, the central conductor 14 includes three pins, three slots 19 for accommodating the pins are disposed in the cavity, the slots 19 are communicated with the accommodating groove 17, the slots 19 are disposed in one-to-one correspondence with the pins, third dielectric blocks 20 for separating the pins from the wall surfaces of the slots 19 are disposed in the two slots 19, and a load 21 electrically connected to the central conductor 14 is disposed in the other slot 19.

Fig. 3 is a graph showing an isolation test result of the waveguide coaxial converter of the present embodiment, and it can be seen from fig. 3 that the waveguide coaxial converter of the present embodiment has an advantage of high isolation.

To sum up, the waveguide coaxial converter provided by the utility model not only has high isolation, but also occupies small space, accords with the development trend of overall miniaturization and portability, and has wide market prospect; simple structure, repair easily, accessible CNC one step machine-shaping, low in production cost.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. A waveguide coaxial converter comprising a coaxial connector and a waveguide cavity having an inner conductor, characterized in that: the coaxial connector is fixed on the rear cover and electrically connected with the ferrule assembly, and the isolator is electrically connected with the inner conductor and the ferrule assembly respectively.

2. The waveguide coaxial converter of claim 1, wherein: the waveguide cavity is provided with a first dielectric block, and the inner conductor is sleeved in the first dielectric block.

3. The waveguide coaxial converter of claim 1, wherein: and a blending block is arranged in the waveguide cavity and electrically connected with the inner conductor.

4. The waveguide coaxial converter of claim 1, wherein: the insert core component comprises a second dielectric block and a microstrip insert core, the second dielectric block is fixed on the rear cover, and the microstrip insert core is sleeved in the second dielectric block.

5. The waveguide coaxial converter of claim 1, wherein: and one side of the rear cover, which is close to the waveguide cavity, is provided with a first positioning groove matched with the isolator.

6. The waveguide coaxial converter of claim 1, wherein: and a second positioning groove matched with the isolator is formed in one side, close to the rear cover, of the waveguide cavity.

7. The waveguide coaxial converter of claim 1, wherein: the isolator comprises a cavity and a functional component arranged in the cavity, wherein the functional component comprises a first permanent magnet, an iron sheet, a first ferrite, a central conductor, a second ferrite and a second permanent magnet which are sequentially stacked from bottom to top, and the central conductor is respectively electrically connected with the ferrule assembly and the inner conductor.

8. The waveguide coaxial converter of claim 7, wherein: the cavity is internally provided with a containing groove for containing the functional component, the top and the bottom of the cavity are respectively provided with a cover plate, and the cover plate seals the containing groove.

9. The waveguide coaxial converter of claim 8, wherein: the central conductor comprises three pins, three slotted holes for containing the pins are arranged in the cavity, the slotted holes are communicated with the containing grooves, the slotted holes and the pins are arranged in a one-to-one correspondence mode, third dielectric blocks for separating the pins from the wall surfaces of the slotted holes are respectively arranged in the two slotted holes, and a load electrically connected with the central conductor is arranged in the other slotted hole.

10. The waveguide coaxial converter of claim 7, wherein: the cavity comprises an upper shell and a lower shell which are connected.