CN220797050U - Waveguide coaxial cable assembly - Google Patents
Waveguide coaxial cable assembly Download PDFInfo
- Publication number
- CN220797050U CN220797050U CN202322596668.4U CN202322596668U CN220797050U CN 220797050 U CN220797050 U CN 220797050U CN 202322596668 U CN202322596668 U CN 202322596668U CN 220797050 U CN220797050 U CN 220797050U
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- waveguide
- coaxial
- coaxial cable
- connector
- cable assembly
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- 239000012212 insulator Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 239000004020 conductor Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Waveguide Aerials (AREA)
Abstract
The utility model discloses a waveguide coaxial cable assembly, which belongs to the technical field of coaxial cable connection and comprises a waveguide main body, wherein one end of the waveguide main body is connected with a flange, the other end of the waveguide main body is connected with a coaxial connector, the coaxial connector comprises a fixing plate and a connector, the waveguide main body is provided with a waveguide cavity, the inner wall of the waveguide cavity is provided with an impedance matching step, the inside of the coaxial connector is coaxially provided with a step hole and a threaded hole, an insulator is arranged in the step hole, a sleeve and a bushing are arranged in the threaded hole, the energy transmission between a waveguide port and a coaxial port is realized through the impedance matching step, the product structure is produced in an assembly form, and an opposite-plug welding structure form is adopted, the use of a coaxial end adapter is reduced, the space installation size is greatly reduced, the aim of product flexibility is fulfilled, the power resistance performance of a cable can be fully exerted, the connection between the coaxial cable and the waveguide is reduced, and the connection is more stable and reliable.
Description
Technical Field
The utility model relates to the technical field of coaxial cable connection, in particular to a waveguide coaxial cable assembly.
Background
The waveguide system has the advantages of large power capacity, small attenuation and the like, and is widely applied to millimeter wave bands, but the waveguide system is generally large in size and difficult to bend. The waveguide coaxial cable assembly has the characteristics of convenient bending, light weight and small volume, and is commonly used for realizing the mutual conversion of a transmission line between a waveguide and a coaxial line in a microwave system, but a plurality of contact surfaces exist in the connection mode, so that the insertion loss and the voltage standing wave ratio are increased, the volume is larger, and the reliability is reduced.
Accordingly, there is a need for a waveguide coaxial cable assembly that has low loss, low standing waves, and good flexibility.
Disclosure of utility model
The utility model aims to provide a waveguide coaxial cable assembly, which is commonly used for a waveguide coaxial converter in order to realize the mutual conversion of a transmission line between a waveguide and a coaxial line in a microwave system, but the connection mode has a plurality of contact surfaces, so that the problems of increased insertion loss and voltage standing wave ratio, larger volume and reduced reliability are caused.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a waveguide coaxial cable subassembly, includes the waveguide main part, the one end and the ring flange of waveguide main part are connected, the other end and the coaxial connector of waveguide main part are connected, the coaxial connector includes fixed plate and joint, waveguide chamber has been seted up to the waveguide main part, be provided with impedance match step on the inner wall in waveguide chamber, step hole and screw hole have been seted up to the coaxial inside of coaxial connector, install the insulator in the step hole, sleeve and bush are installed to the screw hole.
As a further scheme of the utility model: one end of the connector is arranged at the center of the fixed plate, and the other end of the connector is provided with a rear nut.
As a further scheme of the utility model: and a connecting hole is formed in the side wall of the impedance matching step, and a pin needle is inserted into the connecting hole.
As a further scheme of the utility model: the fixed plate is provided with a plurality of first mounting holes, and the coaxial connector is connected with the waveguide main body through screws and the first mounting holes.
As a further scheme of the utility model: the contact pin is sleeved in the central hole of the insulator, and the other end of the contact pin is provided with a jack for connecting a cable.
As a further scheme of the utility model: and a plurality of second mounting holes and positioning holes are formed in the flange plate, and the flange plate is connected to the device to be tested through the second mounting holes and the positioning holes.
The utility model has the beneficial effects that:
(1) According to the utility model, the energy transmission of the waveguide port and the coaxial port is realized through the impedance matching step, the product structure is generated in a component form, and the butt welding structure is adopted, so that the use of a coaxial end adapter is reduced in the structure form, the space installation size is greatly reduced, and the purpose of product flexibility is achieved;
(2) The utility model adopts the laser welding mode, so that an insulator is not needed to fix an inner conductor, the voltage standing wave ratio and the insertion loss of a product are obviously improved by less than 1.5 of the actual measurement standing wave, the insertion loss is less than 0.8, the waveguide cable component of the coaxial adapter adopts a brass gold-plating structure so as to ensure the durability and the radio frequency performance of the waveguide cable component, and the product has the advantages of low loss, low standing wave, good flexibility and the like, can fully play the power resistance of the cable, reduces the connection between the coaxial cable and the waveguide, and ensures that the connection is more stable and reliable.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a schematic diagram of the structure of a waveguide cavity of the present utility model;
fig. 3 is a schematic view of the overall structure of the present utility model.
In the figure: 1. a waveguide body; 101. a waveguide cavity; 102. an impedance matching step; 2. a fixing plate; 201. a first mounting hole; 3. a joint; 4. a pin needle; 5. a contact pin; 6. an insulator; 7. a sleeve; 8. a bushing; 9. a rear nut; 10. a flange plate; 11. a second mounting hole; 12. and positioning holes.
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.
Referring to fig. 1-3, the utility model is a waveguide coaxial cable assembly, which comprises a waveguide main body 1, wherein one end of the waveguide main body 1 is connected with a flange 10, the other end of the waveguide main body 1 is connected with a coaxial connector, the coaxial connector comprises a fixing plate 2 and a joint 3, one end of the joint 3 is arranged at the center of the fixing plate 2, the other end of the joint 3 is provided with a back nut 9, the waveguide main body 1 is provided with a waveguide cavity 101, the inner wall of the waveguide cavity 101 is provided with an impedance matching step 102, the side wall of the impedance matching step 102 is provided with a connecting hole, and a pin needle 4 is inserted into the connecting hole;
The fixed plate 2 is provided with a plurality of first mounting holes 201, the coaxial connector and the waveguide main body 1 are connected with the first mounting holes 201 through screws, the inside of the coaxial connector is coaxially provided with a stepped hole and a threaded hole, an insulator 6 is arranged in the stepped hole, and a sleeve 7 and a bushing 8 are arranged in the threaded hole;
The central hole of the insulator 6 is sleeved with a contact pin 5, one end of the contact pin 5 is provided with a punching split groove structure, the punching split groove structure is used for being inserted into the connecting hole, the other end of the contact pin 5 is provided with a jack, the jack is used for connecting a cable, and the cable can penetrate into the rear nut 9;
The flange plate 10 is provided with a plurality of second mounting holes 11 and positioning holes 12, and the flange plate 10 is connected to a device to be tested through the second mounting holes 11 and the positioning holes 12;
The waveguide coaxial cable assembly realizes energy transmission of a waveguide port and a coaxial port through the impedance matching step 102, the product structure is generated in an assembly form, and adopts an opposite-plug welding structure form, the structure form reduces the use of a coaxial end adapter, the space installation size is greatly reduced, the purpose of product flexibility is achieved, and a coaxial end part jack and a cable are fixed on a shell by using screws in a welding form and a welded assembly;
In a specific embodiment, impedance matching is performed between the stepped structure in the waveguide cavity 101 and the coaxial inner conductor, the female inner conductor and the waveguide shell are fixed on the inner step of the waveguide cavity 101 in a laser welding mode, the welding surface is smooth, the thickness of the welding surface is less than 0.1mm, through simulation optimization, the standing wave is optimized to 1.2, the product is fixed by the laser welding mode without using an insulator 6, so that the voltage standing wave ratio and the insertion loss of the product are obviously improved by less than 1.5 of the actually measured standing wave, the insertion loss is less than 0.8 of the actually measured standing wave, and the waveguide cable component of the coaxial adapter adopts a brass gold plating structure to ensure the durability and the radio frequency performance of the coaxial cable component.
The working principle of the utility model is as follows: the utility model aims to provide a waveguide coaxial cable assembly, when the waveguide coaxial cable assembly is particularly used, the energy transmission of a waveguide port and a coaxial port is realized through an impedance matching step 102, the product structure is produced in a component form, the butt welding structure is adopted, the use of a coaxial end adapter is reduced in the structure form, the space installation size is greatly reduced, the aim of product flexibility is achieved, the product is welded by laser, and therefore, an insulator 6 is not required to be used for fixing an inner conductor, so that the voltage standing wave ratio and the insertion loss of the product are obviously improved by less than 1.5 of actual measurement standing waves, the insertion loss is less than 0.8, the waveguide cable assembly of the coaxial adapter adopts a brass gold plating structure, the durability and the radio frequency performance of the product are ensured, the product has the advantages of low loss, low standing wave, good flexibility and the like, the power resistance performance of the cable can be fully exerted, the connection between the coaxial cable and the waveguide is reduced, and the connection is more stable and reliable.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, and that the specific orientation is constructed and operated, and therefore, the present utility model should not be construed as being limited. Furthermore, the "first" and "second" are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (6)
1. The utility model provides a waveguide coaxial cable subassembly, includes waveguide main part (1), its characterized in that, the one end and the ring flange (10) of waveguide main part (1) are connected, the other end and the coaxial connector of waveguide main part (1) are connected, coaxial connector includes fixed plate (2) and joint (3), waveguide chamber (101) have been seted up to waveguide main part (1), be provided with impedance match step (102) on the inner wall of waveguide chamber (101), step hole and screw hole have been seted up to coaxial connector's inside is coaxial, install insulator (6) in the step hole, sleeve (7) and bush (8) are installed to the screw hole.
2. A waveguide coaxial cable assembly according to claim 1, characterized in that one end of the connector (3) is mounted at the center of the fixing plate (2), and the other end of the connector (3) is mounted with a back nut (9).
3. A waveguide coaxial cable assembly according to claim 1, characterized in that the side wall of the impedance matching step (102) is provided with a connecting hole, into which pin needle (4) is inserted.
4. A waveguide coaxial cable assembly according to claim 1, characterized in that the fixing plate (2) is provided with a plurality of first mounting holes (201), and the coaxial connector and the waveguide main body (1) are connected with the first mounting holes (201) through screws.
5. A waveguide coaxial cable assembly according to claim 1, characterized in that a pin (5) is sleeved in the central hole of the insulator (6), and the other end of the pin (5) is provided with a jack for connecting a cable.
6. A waveguide coaxial cable assembly according to claim 1, characterized in that the flange (10) is provided with a plurality of second mounting holes (11) and positioning holes (12), and the flange (10) is connected to the device to be tested through the second mounting holes (11) and the positioning holes (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322596668.4U CN220797050U (en) | 2023-09-25 | 2023-09-25 | Waveguide coaxial cable assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322596668.4U CN220797050U (en) | 2023-09-25 | 2023-09-25 | Waveguide coaxial cable assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220797050U true CN220797050U (en) | 2024-04-16 |
Family
ID=90655459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322596668.4U Active CN220797050U (en) | 2023-09-25 | 2023-09-25 | Waveguide coaxial cable assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220797050U (en) |
-
2023
- 2023-09-25 CN CN202322596668.4U patent/CN220797050U/en active Active
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