CN214589258U - Offset feed antenna focal length adjusting device - Google Patents
Offset feed antenna focal length adjusting device Download PDFInfo
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- CN214589258U CN214589258U CN202120714140.0U CN202120714140U CN214589258U CN 214589258 U CN214589258 U CN 214589258U CN 202120714140 U CN202120714140 U CN 202120714140U CN 214589258 U CN214589258 U CN 214589258U
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- connecting piece
- feed source
- focal length
- upper connecting
- cross
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Abstract
The utility model relates to an antenna technology field, more specifically especially relates to an offset feed antenna focal length adjusting device. Comprises a support rod, a cross brace, an upper connecting piece, a lower connecting piece, a feed source rotating mechanism and a rotating shaft; the upper end of the supporting rod is connected with the upper connecting piece, the lower end of the supporting rod is connected with the lower connecting piece, the lower connecting piece is connected with the rotating shaft, and the cross arm is arranged between the supporting rods; the feed source rotating mechanism is connected with the upper connecting piece; the feed source rotating mechanism comprises a feed source and a cross support plate, and the feed source is fixedly connected with the cross support plate. The utility model aims to solve the offset feed antenna focus adjustment inconvenient, the problem of wasted time and material is applicable to the antenna that has the journal stirrup.
Description
Technical Field
The utility model relates to an antenna technology field, more specifically especially relates to an offset feed antenna focal length adjusting device.
Background
The determination of the focal length of the offset antenna needs to solve an equation system, and is complex. The commonly used offset feed antenna is generally determined according to a formula F-D (0.6-065), an offset feed angle is 22-25 degrees, a feed source support rod is manufactured according to a designed focal length, and then the optimal position of a feed source focal point is determined through actual adjustment.
In the actual adjustment, the angle of the supporting rod and the length of the side supporting rod need to be adjusted for multiple times, which causes material and time waste.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the offset feed antenna focus adjustment inconvenient, the problem of wasted time and material is applicable to the antenna that has the journal stirrup. In order to achieve the above object, the utility model provides a following technical scheme:
a focal length adjusting device of an offset feed antenna is characterized by comprising a supporting rod, a cross brace, an upper connecting piece, a lower connecting piece, a feed source rotating mechanism and a rotating shaft; the upper end of the supporting rod is connected with the upper connecting piece, the lower end of the supporting rod is connected with the lower connecting piece, the lower connecting piece is connected with the rotating shaft, and the cross arm is arranged between the supporting rods; the feed source rotating mechanism is connected with the upper connecting piece;
the feed source rotating mechanism comprises a feed source and a cross support plate, and the feed source is fixedly connected with the cross support plate.
Furthermore, a guide groove is formed in the supporting rod, a sliding nut is arranged on the upper connecting piece, and the sliding nut is connected with the guide groove in a matched mode.
Furthermore, the upper connecting piece is provided with symmetrical arc long holes, and the upper connecting piece is connected with the cross supporting plate through the arc long holes.
Furthermore, a long adjusting hole is formed in the cross support plate, and the cross support plate is connected with the feed source through the long adjusting hole.
Further, the lower connecting piece is provided with an arc long hole, and the lower connecting piece is connected with the rotating shaft through the arc long hole.
The beneficial effect of this application:
1. the design structure is simple, and the use is convenient;
2. the design has the design of the guide groove and the special-shaped hole, and can realize large-distance adjustment and angle fine adjustment of a plurality of parts;
3. this design simple to operate easily adjusts.
Drawings
Fig. 1 is a schematic overall structure diagram of the present application.
Fig. 2 is a partial schematic view of the connection part of the connecting member and the support rod according to the present application.
Fig. 3 is a schematic cross-sectional view of the upper connecting member and the support rod in the present application.
Fig. 4 is a side view of the connection between the connecting member and the cross plate according to the present application.
Fig. 5 is a schematic bottom view of the connection between the cross plate and the feed source according to the present application.
Fig. 6 is a partial schematic view of the connection between the lower connecting member and the rotating shaft according to the present application.
Wherein: 1. a support bar; 2. a cross brace; 3. an upper connecting piece; 4. a lower connecting piece; 5. a feed source rotating mechanism; 501. a cross bracing plate; 502. a feed source; 6. a rotating shaft; 7. a guide groove; 8. a sliding nut; 9. a long adjusting hole; 10. and the arc long hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in the figure, an apparatus for adjusting the focal length of a bias-fed antenna includes: the feed source device comprises a support rod 1, a cross brace 2, an upper connecting piece 3, a lower connecting piece 4, a feed source rotating mechanism 5 and a rotating shaft 6. The feed source rotating mechanism 5 comprises a cross plate 501 and a feed source 502. The lower connecting piece 4 is connected with a rotating shaft 6, and the rotating shaft 6 plays roles in connection and angle adjustment. The upper end of the support rod 1 is connected with the upper connecting piece 3, the lower end of the support rod is connected with the lower connecting piece 4, the cross brace 2 is arranged between the support rods 1, and the cross brace 2 is provided with a plurality of parts to prevent deformation. A cross support plate 501 is arranged between the upper connecting pieces 3, and the feed source 502 is connected with the cross support plate 501.
Wherein, be provided with guide way 7 on the bracing piece 1, go up connecting piece 3 and be provided with slip nut 8, be connected through the cooperation of guide way 7 with slip nut 8, realize going up connecting piece 3 and drive feed rotary mechanism 5, the free slip realizes longitudinal distance adjustment on bracing piece 1.
The cross support plate 501 is connected with the upper connecting piece 3 through bolts, the upper connecting piece 3 is provided with the arc long hole 10, and the cross support plate 501 is connected with the upper connecting piece 3 through the arc long hole 10, so that small-amplitude rotation of the cross support plate 501 can be realized; the feed source rotating mechanism 5 rotates angularly due to the rotation of the cross plate 501, so that the fine adjustment of the feed source 502 at a small angle is realized;
further optimizing the technical scheme, the cross support plate 501 is provided with a long adjusting hole 9, and the feed source 502 and the cross support plate 501 are fixed by bolts through the adjustable long adjusting hole 9, so that the feed source 502 can translate at a small distance, and the fine adjustment of the distance of the feed source 502 is realized; further modified, the connecting holes on the cross plate 501 include, but are not limited to, long adjusting holes, and may be other shaped holes for easy adjustment.
The support rod 1 and the lower connecting piece 4 are fixedly connected by bolts, and the lower connecting piece 4 and the rotating shaft 6 are connected by bolts; the lower connecting piece 4 is provided with an arc long hole concentric with the rotating shaft 6, and the rotating shaft 6 is connected with the lower connecting piece 4 through the arc long hole 10, so that the adjustment is convenient, and the wide-angle adjustment of the feed source is realized; further modified, the connection between the lower connecting piece 4 and the rotating shaft 6 is not limited to the arc-shaped long hole 10, but can be other special-shaped holes for convenient adjustment.
The adjustment of the feed source is to find the focal distance, and the adjustment of the feed source is divided into angle adjustment and distance adjustment. The feed source adjustment of the device has a coarse adjustment part and a fine adjustment part, and each part has distance and angle adjustment, so that the adjustment is convenient and the time is saved.
It will be apparent to those skilled in the art that while the embodiments of the present invention have been shown and described, there are no difficulties in implementing the functions and features described above, and it is to be understood that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. A focal length adjusting device of an offset feed antenna is characterized by comprising a support rod (1), a cross brace (2), an upper connecting piece (3), a lower connecting piece (4), a feed source rotating mechanism (5) and a rotating shaft (6); the upper end of the supporting rod (1) is connected with the upper connecting piece (3), the lower end of the supporting rod (1) is connected with the lower connecting piece (4), the lower connecting piece (4) is connected with the rotating shaft (6), and the cross brace (2) is arranged between the supporting rods (1); the feed source rotating mechanism (5) is connected with the upper connecting piece (3);
the feed source rotating mechanism (5) comprises a feed source (502) and a cross plate (501), wherein the feed source (502) is fixedly connected with the cross plate (501).
2. The focal length adjusting device of the offset antenna according to claim 1, wherein the supporting rod (1) is provided with a guiding groove (7), the upper connecting member (3) is provided with a sliding nut (8), and the sliding nut (8) is connected with the guiding groove (7) in a matching manner.
3. The focal length adjusting device of the offset antenna according to claim 1, wherein the upper connecting member (3) is provided with symmetrical arc long holes (10), and the upper connecting member (3) is connected with the cross plate (501) through the arc long holes (10).
4. The focal length adjusting device of the offset antenna according to claim 1, wherein the cross plate (501) is provided with a long adjusting hole (9), and the cross plate (501) is connected to the feed source (502) through the long adjusting hole (9).
5. The focal length adjustment device of the offset antenna according to claim 1, wherein the lower connecting member (4) is provided with an arc-shaped long hole (10), and the lower connecting member (4) is connected with the rotating shaft (6) through the arc-shaped long hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120714140.0U CN214589258U (en) | 2021-04-08 | 2021-04-08 | Offset feed antenna focal length adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120714140.0U CN214589258U (en) | 2021-04-08 | 2021-04-08 | Offset feed antenna focal length adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214589258U true CN214589258U (en) | 2021-11-02 |
Family
ID=78323866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120714140.0U Expired - Fee Related CN214589258U (en) | 2021-04-08 | 2021-04-08 | Offset feed antenna focal length adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214589258U (en) |
-
2021
- 2021-04-08 CN CN202120714140.0U patent/CN214589258U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211102 |