CN220731760U - Broadband four-ridge waveguide circular polarizer - Google Patents

Abstract

The utility model belongs to the technical field of satellite communication, and particularly relates to a broadband four-ridge waveguide circular polarizer which comprises a polarizer body and a connecting piece, wherein an upper crescent fixed block is arranged on the outer wall of the polarizer body, a limiting block is arranged below the upper crescent fixed block, a first rotating shaft penetrates through the inside of the limiting block, fixed sleeves are arranged at two ends of the first rotating shaft, a lower crescent fixed block is arranged below the fixed sleeves, a second rotating shaft is arranged on the outer wall of the lower crescent fixed block, the connecting piece is arranged below the second rotating shaft, a bearing is arranged at the bottom of the connecting piece, and a chassis is arranged below the bearing; the utility model has simple installation and disassembly, can be replaced and maintained without complex operation, can adjust the inclination angle and the use direction of the broadband four-ridge waveguide circular polarizer, is suitable for different working requirements, can adjust the height of parts above the chassis, and is convenient for installing the broadband four-ridge waveguide circular polarizer at different height positions.

Description

Broadband four-ridge waveguide circular polarizer

Technical Field

The utility model relates to the technical field of satellite communication, in particular to a broadband four-ridge waveguide circular polarizer.

Background

In Chinese patent CN201821064809.0, the utility model discloses a broadband four-ridge waveguide circular polarizer, and belongs to the technical field of satellite communication. The waveguide structure comprises a square waveguide cavity, two vertical ridges and two horizontal ridges, wherein the two vertical ridges are respectively arranged on two opposite waveguide walls, and the two horizontal ridges are respectively arranged on the other two waveguide walls. The utility model uses the broadband characteristic of four-ridge waveguide to make the height and width of two pairs of orthogonal ridges different to change the propagation constant of two orthogonal polarized waves, and according to the principle of circular polarizer, when two polarized waves with equal amplitude and same phase pass through the circular polarizer, the amplitude of the two polarized waves is equal, the phase difference is 90 degrees, thus forming circular polarization. Meanwhile, the ridge is not provided with a phase shifting unit and a tooth groove structure, the defect that the traditional circular polarizer cannot be used for a 1mm wave band is overcome, and the circular polarizer has the characteristics of being applicable to the L wave band to the W wave band, good in electric performance, simple in structure, free of debugging, high in reliability and suitable for batch production.

The existing satellite communication technology has the problems that the direction is inconvenient to adjust, the inclination angle is troublesome to adjust, and therefore the compatibility is poor and the height adjustment capability is general.

Therefore, a broadband four-ridge waveguide circular polarizer is proposed for the above-mentioned problems.

Disclosure of Invention

In order to make up the deficiency of the prior art, the problems of inconvenient adjustment of the direction, troublesome adjustment of the inclination angle, poor compatibility and general height adjustment capability are solved.

The technical scheme adopted for solving the technical problems is as follows: the utility model discloses a broadband four-ridge waveguide circular polarizer which comprises a polarizer body and a connecting piece, wherein an upper crescent fixing block is arranged on the outer wall of the polarizer body, a limiting block is arranged below the upper crescent fixing block, a first rotating shaft penetrates through the inside of the limiting block, fixing sleeves are arranged at two ends of the first rotating shaft, a lower crescent fixing block is arranged below the fixing sleeves, a second rotating shaft is arranged on the outer wall of the lower crescent fixing block, the connecting piece is arranged below the second rotating shaft, a bearing is arranged at the bottom of the connecting piece, a chassis is arranged below the bearing, an inner rod is arranged at the bottom of the chassis, an outer rod is arranged on the outer wall of the inner rod, and a base is arranged below the outer rod.

Preferably, the fixing piece is installed to the tip of last crescent moon shaped fixed block, and the inside of fixing piece runs through there is the bolt, the below of bolt is provided with fixation nut, and the front side of fixation nut installs the gasket.

Preferably, the upper crescent fixing block and the lower crescent fixing block form a rotating structure through the first rotating shaft, and the lower crescent fixing block and the limiting block are integrally arranged.

Preferably, the lower crescent fixing block forms a rotating structure with the connecting piece through the second rotating shaft, and the connecting piece is movably connected with the bearing.

Preferably, the chassis forms a sliding structure through the inner rod and the outer rod, and the outer rod is welded with the base.

Preferably, the fixing piece is connected with the bolt in a clamping way, and the bolt is connected with the fixing nut in a threaded way.

The utility model has the advantages that:

1. the device is simple to install and detach, can be replaced and maintained without complex operation, can adjust the inclination angle of the broadband four-ridge waveguide circular polarizer, drives the connecting piece to rotate in the horizontal direction through the bearing, can adjust the use direction of the broadband four-ridge waveguide circular polarizer, can adapt to different working requirements, improves the compatibility of the broadband four-ridge waveguide circular polarizer, and increases application scenes;

2. the device can adjust the height of the part above the chassis by sliding the inner rod in the outer rod, is convenient for installing the broadband four-ridge waveguide circular polarizer at positions with different heights, prevents that the device from being highly fixed and unable to be adjusted from causing higher requirements on the installation position, and can further enhance the compatibility of the device.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic perspective view of the whole front view of the present utility model;

FIG. 2 is a schematic perspective view of the whole rear view of the present utility model;

FIG. 3 is a schematic perspective view of a connector according to the present utility model;

FIG. 4 is a schematic perspective view of the crescent fixing block of the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

In the figure: 1. a body; 2. a crescent fixed block is arranged on the upper part; 3. a limiting block; 4. a first rotating shaft; 5. a fixed sleeve; 6. a lower crescent fixed block; 7. a second rotating shaft; 8. a connecting piece; 9. a bearing; 10. a chassis; 11. an inner rod; 12. an outer rod; 13. a base; 14. a fixing member; 15. a plug pin; 16. a fixed screw cap; 17. a gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1 to 5, a broadband four-ridge waveguide circular polarizer comprises a polarizer body 1 and a connecting piece 8, wherein an upper crescent fixing block 2 is arranged on the outer wall of the polarizer body 1, a limiting block 3 is arranged below the upper crescent fixing block 2, a first rotating shaft 4 penetrates through the inside of the limiting block 3, fixing sleeves 5 are arranged at two ends of the first rotating shaft 4, a lower crescent fixing block 6 is arranged below the fixing sleeves 5, a second rotating shaft 7 is arranged on the outer wall of the lower crescent fixing block 6, the connecting piece 8 is arranged below the second rotating shaft 7, a bearing 9 is arranged at the bottom of the connecting piece 8, a chassis 10 is arranged below the bearing 9, an inner rod 11 is arranged at the bottom of the chassis 10, an outer rod 12 is arranged on the outer wall of the inner rod 11, and a base 13 is arranged below the outer rod 12.

Go up crescent fixed block 2 and constitute rotating-structure through first pivot 4 and lower crescent fixed block 6, and set up as an organic wholely between crescent fixed block 6 and the stopper 3 down, rotate control on first pivot 4 outer wall through stopper 3 and go up crescent fixed block 2 and lower crescent fixed block 6 laminating and separation, be convenient for put into broadband four-ridge waveguide circular polarizer, gasket 17 can play the guard action to ware body 1, place the too tight damage that leads to of broadband four-ridge waveguide circular polarizer centre gripping, installation and dismantlement to ware body 1 are comparatively simple, need not complicated operation and can change and maintain it.

The lower crescent fixed block 6 forms a rotating structure with the connecting piece 8 through the second rotating shaft 7, and is movably connected between the connecting piece 8 and the bearing 9, the inclined angle of the broadband four-ridge waveguide circular polarizer can be adjusted through the rotation of the lower crescent fixed block 6 and the second rotating shaft 7 in the connecting piece 8, the connecting piece 8 is driven to rotate in the horizontal direction through the bearing 9, the using direction of the broadband four-ridge waveguide circular polarizer can be adjusted, the broadband four-ridge waveguide circular polarizer can be suitable for different working requirements, the compatibility of the broadband four-ridge waveguide circular polarizer is improved, and the application scene is increased.

The chassis 10 forms sliding construction through interior pole 11 and outer pole 12, and is welded connection between outer pole 12 and the base 13, slides in the inside of outer pole 12 through interior pole 11, can adjust chassis 10 top part height, is convenient for install broadband four ridge waveguide circular polarizer in the position of not co-altitude, prevents that the unable regulation of device height from leading to higher to the mounted position requirement, can further strengthen device compatibility.

Example two

Referring to fig. 2 to 4, a wideband four-ridge waveguide circular polarizer is shown, a fixing member 14 is mounted at the end of an upper crescent fixing block 2, a bolt 15 is inserted into the fixing member 14, a fixing nut 16 is disposed below the bolt 15, and a gasket 17 is mounted at the front side of the fixing nut 16.

The fixing piece 14 is connected with the bolt 15 in a clamping way, the bolt 15 is connected with the fixing nut 16 in a threaded way, the bolt 15 is inserted into the fixing piece 14 through the bolt 15, the bolt 15 is fixed by the fixing nut 16, and therefore the upper crescent fixing block 2 and the lower crescent fixing block 6 are fixedly connected, and meanwhile the clamping tightness of the broadband four-ridge waveguide circular polarizer can be adjusted, and damage to the device body 1 caused by excessive clamping is prevented.

Working principle: firstly, the upper crescent fixed block 2 and the lower crescent fixed block 6 are rotationally controlled to be attached to and separated from each other on the outer wall of the first rotating shaft 4 through the limiting block 3, so that the broadband four-ridge waveguide circular polarizer is conveniently placed in the device, the fixed sleeve 5 can play a limiting role on the first rotating shaft 4 and prevent the device from being separated from the limiting block 3, the gasket 17 can play a protecting role on the device body 1, the device body 1 is relatively simple to install and detach and can be replaced and maintained without complex operation, the lower crescent fixed block 6 and the second rotating shaft 7 rotate in the connecting piece 8, the inclination angle of the broadband four-ridge waveguide circular polarizer can be adjusted, the connecting piece 8 is driven to rotate in the horizontal direction through the bearing 9, the using direction of the broadband four-ridge waveguide circular polarizer can be adjusted, the device can be suitable for different working requirements, the compatibility of the broadband four-ridge waveguide circular polarizer can be improved, and the application scene can be increased;

finally, through interior pole 11 in the inside slip of outer pole 12, can adjust chassis 10 top part height, be convenient for install broadband four-ridge waveguide circular polarizer in the position of not co-altitude, prevent that the unable regulation of device height from leading to higher to the mounted position requirement, can further strengthen device compatibility, base 13 is convenient for install fixedly to the device is whole, insert mounting 14 through bolt 15, reuse fixation nut 16 is fixed bolt 15, make crescent fixed block 2 and crescent fixed block 6 connect fixedly down from this, can adjust the compactness to broadband four-ridge waveguide circular polarizer centre gripping simultaneously, prevent to centre gripping too tightly causes the damage to ware body 1.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. A broadband four-ridge waveguide circular polarizer is characterized in that: including ware body (1) and connecting piece (8), the outer wall of ware body (1) is provided with crescent fixed block (2), and installs stopper (3) in the below of crescent fixed block (2), the inside of stopper (3) is run through and is had first pivot (4), and the both ends of first pivot (4) all are provided with fixed cover (5), crescent fixed block (6) down are installed to the below of fixed cover (5), and the outer wall of crescent fixed block (6) is provided with second pivot (7) down, connecting piece (8) are installed in the below of second pivot (7), and the bottom of connecting piece (8) is provided with bearing (9), chassis (10) are installed to the below of bearing (9), and the bottom of chassis (10) is provided with interior pole (11), outer pole (12) are installed to the outer wall of interior pole (11), and the below of outer pole (12) is provided with base (13).

2. The broadband four-ridge waveguide circular polarizer of claim 1, wherein: the end part of the upper crescent fixing block (2) is provided with a fixing piece (14), a bolt (15) penetrates through the fixing piece (14), a fixing nut (16) is arranged below the bolt (15), and a gasket (17) is arranged on the front side of the fixing nut (16).

3. The broadband four-ridge waveguide circular polarizer of claim 1, wherein: the upper crescent fixing block (2) and the lower crescent fixing block (6) form a rotating structure through the first rotating shaft (4), and the lower crescent fixing block (6) and the limiting block (3) are integrally arranged.

4. The broadband four-ridge waveguide circular polarizer of claim 1, wherein: the lower crescent fixing block (6) and the connecting piece (8) form a rotating structure through the second rotating shaft (7), and the connecting piece (8) and the bearing (9) are movably connected.

5. The broadband four-ridge waveguide circular polarizer of claim 1, wherein: the chassis (10) forms a sliding structure with the outer rod (12) through the inner rod (11), and the outer rod (12) is welded with the base (13).

6. A broadband four-ridge waveguide circular polarizer according to claim 2, wherein: the fixing piece (14) is in clamping connection with the bolt (15), and the bolt (15) is in threaded connection with the fixing nut (16).