CN208444944U - A kind of radio-frequency channel of antenna rotating platform - Google Patents
A kind of radio-frequency channel of antenna rotating platform Download PDFInfo
- Publication number
- CN208444944U CN208444944U CN201820921045.6U CN201820921045U CN208444944U CN 208444944 U CN208444944 U CN 208444944U CN 201820921045 U CN201820921045 U CN 201820921045U CN 208444944 U CN208444944 U CN 208444944U
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- radio
- frequency channel
- rotary joint
- fixing piece
- rotating member
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Abstract
The utility model discloses a kind of radio-frequency channel of antenna rotating platform, including microwave rotary joint, fixing piece and rotating member, and the top of the microwave rotary joint is connect with rotating member, and the lower part of microwave rotary joint is protruded into the upper end bayonet of fixing piece；The lower end of the fixing piece is provided with the barricade of conductive energy, and the upper end of the lower interface connection transit cable of microwave rotary joint, the lower end of transit cable is fixed on the shield plates；One end of the lower end connection external cable of the transit cable, the other end of external cable are led to outside turntable.The utility model structure is simple, high isolation, anti-interference, reliable operation, performance are stable, at low cost.
Description
Technical field
The utility model relates to a kind of radio-frequency channels of mobile satellite communication antenna, and in particular to a kind of antenna rotating platform is penetrated
Frequency channel.
Background technique
Antenna rotating platform is the necessary device of mobile satellite communication antenna rotary work, and the radio-frequency channel of communication antenna needs logical
Microwave rotary joint is crossed to transmit across antenna rotating platform.The structure of existing microwave rotary joint is mainly single channel, two-way and multichannel
Form exists in the case where electromagnetic environment is complicated and changeable with the radio-frequency channel that two-way or multichannel microwave rotary joint are switching
Certain limitation.Two-way or multiple-channel ratation joint are mainly nested form, and each interchannel is not using physical isolation, usual situation
Isolation and signal core line between lower channel are only 60dB or so to the isolation on shell ground, cause faint satellite-signal easy
Interference by electromagnetic environment.
As shown in Figure 1, usually being passed through below microwave rotary joint with the radio-frequency channel that microwave rotary joint is switching
It connects coaxial radio frequency cable and passes through turntable inner cavity and SERVO CONTROL chamber, radio-frequency channel and turntable inner cavity and SERVO CONTROL chamber are to open
Connectivity structure is put, since turntable inner cavity is equipped with the devices such as motor and motor driven power amplifier, has servo in table servo control chamber
Control circuit, the electromagnetic environment that antenna rf channel must be complicated inside turntable when passing through inside turntable.Meanwhile microwave
The rotary joint device most weak as anti-interference ability in radio-frequency channel, since fixing piece uses open architecture in order to cable
Connection, and there are rolling assembling gaps between rotating member and fixing piece, and microwave rotary joint is caused to be highly prone to electromagnetism inside turntable
The interference of environment.
Summary of the invention
Goal of the invention: the utility model aim be in view of the deficiencies of the prior art, provide a kind of structure it is simple, it is high every
Radio-frequency channel from, stable, the at low cost antenna rotating platform of anti-interference, reliable operation, performance.
Technical solution: the radio-frequency channel of antenna rotating platform described in the utility model, including microwave rotary joint, fixing piece and turn
The top of moving part, the microwave rotary joint is connect with rotating member, and the upper end card of fixing piece is protruded into the lower part of microwave rotary joint
In mouthful；The lower end of the fixing piece is provided with the barricade of conductive energy, and the lower interface of microwave rotary joint connects switching
The upper end of cable, the lower end of transit cable are fixed on the shield plates；One end of the lower end connection external cable of the transit cable,
The other end of external cable is led to outside turntable.
Above-mentioned technical proposal is further improved, is provided with elastic spring at the rotating member and fixing piece underclearance,
The elastic spring includes the top fold flange being linked together and lower part grid formula contact；The grid formula contact
It is arranged along rotating member inner wall surrounding, bending flange is fixed on the lower end surface of rotating member.
Further, the grid formula contact is to extend downwardly out several grizzly bars with arc convex from root,
The direction of the arc convex is inside and is close to the outer wall of the fixing piece.
Further, the lower part of the bending flange is fixed with briquetting.
Further, the lower end of the transit cable is passed through using bulk-head connector and corresponds to aperture on barricade, fixed
On the shield plates.
Further, the barricade is made of high conductive alloy material.
The utility model has the advantages that (1) the utility model uses EMC Design Method of Reinforcing, make the locating lower section radio frequency of microwave rotary joint
Channel becomes a complete shielding cavity, enhances the shielding isolation of communication antenna radio-frequency channel, efficiency can reach 90dB with
On, avoid the interference by electromagnetic environment inside turntable.
(2) the utility model between rotating member and fixing piece by being arranged elastic spring, to eliminate rotating member and fixation
Rolling assembling gap between part avoids microwave rotary joint by the interference of electromagnetic environment inside turntable, guarantees communication quality
It is reliable and stable.
(3) the utility model is reinforced on the basis of former conventional turntable, smaller to original structure change, at low cost,
It is easily achieved, stability is high, reliable operation.
Detailed description of the invention
Fig. 1 is prior art antenna rotating platform radio-frequency channel structure chart.
Fig. 2 is the utility model structure chart.
Fig. 3 is the main view of elastic spring in Fig. 2.
Fig. 4 is the side view of elastic spring in Fig. 2.
In figure, 1, microwave rotary joint；2, rotating member；3, fixing piece；4, turntable inner cavity；5, table servo control chamber；6,
Transit cable；7, external cable；8, barricade；9, elastic spring；10, briquetting；91, bending flange；92, grid formula is in electrical contact
Body.
Specific embodiment
Technical solutions of the utility model are described in detail below by attached drawing, but the protection scope of the utility model
It is not limited to the embodiment.
Embodiment 1: a kind of radio-frequency channel of antenna rotating platform, as shown in Fig. 2, including microwave rotary joint 1, rotating member 2, consolidating
Determine part 3, turntable inner cavity 4, table servo controller 5, transit cable 6, external cable 7, barricade 8, elastic spring 9 and briquetting
10。
The microwave rotary joint 1 is two-way rotary joint, and the top of microwave rotary joint 1 is connect with rotating member 2, microwave
The lower part of rotary joint 1 is protruded into the upper end bayonet of the fixing piece 3；When turntable work, the lower half of microwave rotary joint 1
It is fixed structure with fixing piece 3.The lower end of the fixing piece 3 is provided with barricade 8, and the barricade 8 passes through screw and fixation
Part 3 is fixed；The barricade 8 and fixing piece 3 are all made of high conductive alloy material and are made, barricade 8 and fixing piece 3 it
Between pass through conductive connection.
The upper end of the lower interface connection transit cable 6 of the microwave rotary joint 1, the lower end of transit cable 6 is using through walls
Formula connector passes through corresponding aperture on barricade 8；The bulk-head connector is connect with one end of external cable 7, external electricity
The other end of cable 7 is led to outside turntable.
Elastic spring 9 is provided between the rotating member 2 and the underclearance of fixing piece 3, the elastic spring 9 is using high
Elastic beryllium-bronze material is made.As shown in Figures 3 and 4, the elastic spring 9 include the top fold flange 91 that is linked together and under
Portion's grid formula contact 92.The bending angle of the bending flange 91 is 90 degree, and bending flange 91 is arranged under rotating member 2
On end face；The lower part of bending flange 91 is provided with briquetting 10, and the briquetting 10 is fixed by screw and rotating member 2, by bending
Flange 91 compresses；The briquetting 10 is annular aluminium alloy briquetting 10, and the internal diameter of briquetting 10 is greater than the fixing piece 3 cooperation cylinder
Outer diameter is machined with installation through-hole on briquetting 10.The grid formula contact 92 is that several band arcs are extended downwardly from root
The grizzly bar of protrusion, grid formula contact 92 are arranged around 2 inner wall surrounding of rotating member, and the arc convex is inward direction and is close to
3 outer wall of fixing piece.
The installation method of the utility model is as follows: firstly, by the grid formula contact 92 of elastic spring 9 along rotating member 2
Inner wall was around one week and was adjacent to, and the arc convex of grid formula contact 92 is inward direction, and the arc convex guarantees rotating
When 3 coaxial relative rotation of part 2 and fixing piece, fixing piece 3 and 2 resilient conductive contact of rotating member；Using double-sided adhesive by elastic spring 9
Bending flange 91 be fixed on the lower end surface of rotating member 2；Then, by briquetting 10 compress bending flange 91, and by screw with
Rotating member 2 is connected and fixed, and the installation to ensure elastic spring 9 is reliable.
As described above, although the utility model has been indicated and described referring to specific preferred embodiment, it must not
It is construed to the limitation to the utility model itself.In the spirit and scope for not departing from the utility model that appended claims define
Under the premise of, it can various changes can be made in the form and details to it.
Claims (6)
1. a kind of radio-frequency channel of antenna rotating platform, including microwave rotary joint, fixing piece and rotating member, the microwave rotary joint
Top connect with rotating member, the lower part of microwave rotary joint is protruded into the upper end bayonet of fixing piece；It is characterized by: described solid
The lower end for determining part is provided with the barricade of conductive energy, and the lower interface of microwave rotary joint connects the upper end of transit cable,
The lower end of transit cable is fixed on the shield plates；One end of the lower end connection external cable of the transit cable, external cable
The other end is led to outside turntable.
2. the radio-frequency channel of antenna rotating platform according to claim 1, it is characterised in that: the rotating member and fixing piece lower part
Gap location is provided with elastic spring, and the elastic spring includes the top fold flange being linked together and the electrical contact of lower part grid formula
Body；The grid formula contact is arranged along rotating member inner wall surrounding, and bending flange is fixed on the lower end surface of rotating member.
3. the radio-frequency channel of antenna rotating platform according to claim 2, it is characterised in that: the grid formula contact is certainly
Root extends downwardly out several grizzly bars with arc convex, and the direction of the arc convex is inside and is close to the fixing piece
Outer wall.
4. the radio-frequency channel of antenna rotating platform according to claim 2, it is characterised in that: the lower part of the bending flange is fixed
There is briquetting.
5. the radio-frequency channel of antenna rotating platform according to claim 1, it is characterised in that: the lower end of the transit cable uses
Bulk-head connector, which passes through, corresponds to aperture on barricade, fix on the shield plates.
6. the radio-frequency channel of antenna rotating platform according to claim 1, it is characterised in that: the barricade is excellent using electric conductivity
Good alloy material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820921045.6U CN208444944U (en) | 2018-06-13 | 2018-06-13 | A kind of radio-frequency channel of antenna rotating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820921045.6U CN208444944U (en) | 2018-06-13 | 2018-06-13 | A kind of radio-frequency channel of antenna rotating platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208444944U true CN208444944U (en) | 2019-01-29 |
Family
ID=65089940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820921045.6U Active CN208444944U (en) | 2018-06-13 | 2018-06-13 | A kind of radio-frequency channel of antenna rotating platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208444944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678667A (en) * | 2022-03-31 | 2022-06-28 | 中国电子科技集团公司第十四研究所 | Multi-path microwave rotary joint assembling equipment and assembling method |
-
2018
- 2018-06-13 CN CN201820921045.6U patent/CN208444944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678667A (en) * | 2022-03-31 | 2022-06-28 | 中国电子科技集团公司第十四研究所 | Multi-path microwave rotary joint assembling equipment and assembling method |
| CN114678667B (en) * | 2022-03-31 | 2024-01-23 | 中国电子科技集团公司第十四研究所 | Multi-path microwave rotary joint assembly equipment and assembly method |
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