CN109449604B - High-precision hexagonal space double-layer reflecting surface antenna back frame - Google Patents
High-precision hexagonal space double-layer reflecting surface antenna back frame Download PDFInfo
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- CN109449604B CN109449604B CN201811552047.3A CN201811552047A CN109449604B CN 109449604 B CN109449604 B CN 109449604B CN 201811552047 A CN201811552047 A CN 201811552047A CN 109449604 B CN109449604 B CN 109449604B
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- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000010410 layer Substances 0.000 claims 4
- 239000002355 dual-layer Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000004891 communication Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
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Abstract
The invention discloses a high-precision hexagonal space double-layer reflecting surface antenna back frame, and relates to the structural design technology of the high-precision reflecting surface antenna back frame in the fields of communication, measurement and control, radio astronomy and the like. The antenna back frame is high in precision, light in weight, easy to install and suitable for mass production. The device comprises an upper chord surface, a lower chord surface, a space diagonal rod, a side diagonal rod, a door-shaped frame, a connecting bracket, a supporting frame, a positioning pillar, a bolt ball and the like. The back frame is hexagonal in shape and comprises an upper layer and a lower layer, the upper chord surface is composed of triangular units, the lower chord surface is composed of triangular units and quadrilateral units, the upper layer and the lower layer are combined through triangular pyramids to form a stable space structure, and each rod piece of the back frame is connected with each other through a bolt ball. The invention has the characteristics of good structural rigidity, light weight and high precision, and is particularly suitable for the antenna back frame structure in large and medium-sized reflecting surface antennas.
Description
Technical Field
The invention relates to a high-precision reflecting surface antenna in the fields of communication, measurement and control, radio astronomy and the like, in particular to a high-precision circularly symmetric reflecting surface antenna or a back frame structure of a biased reflecting surface antenna, which is particularly suitable for the production and the manufacture of large-batch and fast-installed medium-caliber reflecting surface antennas.
Background
The reflecting surface antenna back frame is an important component of the reflecting surface antenna, the upper part is connected with the antenna panel, and the lower part is connected with the seat frame. The antenna back frame is used for supporting the panel and providing rigidity for the panel, and the surface precision and main performance of the antenna are directly determined by the back frame. The reflector antenna back frame structure is thus a core component in the overall antenna system.
The traditional reflector antenna back frame is generally composed of a central body, radiation beams, ring pull rods and the like, wherein the radiation beams are uniformly distributed along the circumference of the central body and are connected by the ring pull rods to form the antenna back frame. The central body is in a cylindrical form, and is internally lined with reinforcing rib plates and is formed by welding; the radiation beam is a plane truss structure formed by welding a plurality of sectional materials. Although the back frame structure can meet the electrical performance index of the antenna, the following defects exist:
1 weight. Because the central body is formed by adopting a solid plate, the annular and radial reinforcing rib plates are arranged inside, and a plurality of flanges connected with the radiation beam are arranged outside, so that the weight of the antenna back frame is increased.
2 is easy to deform. The main components of the traditional antenna back frame are formed by welding, stress concentration is easy to generate in the manufacturing process, so that the installed reflecting surface antenna is easy to deform, and the performance of the antenna is reduced.
3, the surface accuracy is poor. The traditional antenna back frame composed of the central body, the radiation beam and the loop pull rod has very high rigidity of the central body, and weak rigidity of the radiation beam, so that the rigidity of the back frame at the combination position is discontinuous, and the surface precision of the antenna is deteriorated.
Chinese patent publication No. CN101527384a, entitled "method for manufacturing balanced and stable space grid type reflector antenna back frame", discloses a method for designing a reflector antenna back frame. Although the method can improve the overall rigidity of some antenna back frames, the following defects exist in terms of structure:
1 the antenna back frame in the invention is composed of three layers of structures: the upper chord surface, the lower chord surface and the surface where the quadrangle cone vertex is located. The antenna back frame rod piece distribution density is high, the processing and manufacturing are complex, and the weight is heavy.
The upper chord surface of the antenna back frame is composed of quadrilateral units, and the quadrilateral structure is known to have instability, so that the method is easy to cause local deformation of the reflecting surface antenna in pitching motion, and influences the surface accuracy of the antenna.
The invention of 3 relates only to circularly symmetric reflector antennas, and is not applicable to non-circularly symmetric reflector antennas or reflector antennas with polygonal shapes.
Chinese patent publication No. CN104638381a, entitled "FAST radio telescope space five-equal reflecting surface unit", discloses a triangle reflecting surface unit of double-layer structure, and the method is suitable for specific engineering such as FAST radio telescope, but has the following drawbacks for general reflecting surface antenna application:
1 the unit shape given in the invention is triangular, and the shape of the reflector antenna is generally circular, elliptical or polygonal, so that the invention is not applicable to a general reflector antenna back frame structure.
2 the reflector unit support points in this invention are located at the three outer vertices of the triangle. This manner of support can result in a bulky support structure for the reflector antenna.
The reflecting surface panel in the invention adopts a perforated panel or an aluminum alloy net surface panel, and the panel with the structure is not suitable for a reflecting surface antenna working at high frequency.
Summary of the invention
The invention aims to overcome the defects of the prior art and provide the high-precision hexagonal space double-layer reflecting surface antenna back frame, which has the characteristics of high precision, light weight, high rigidity and quick installation compared with the prior reflecting surface antenna back frame. The reflecting surface antenna back frame adopts a hexagonal space double-layer bolt ball structure, the upper chord surface is composed of triangular units, the bolt ball adopts a hollow structure and is formed by numerical control machining, the surface precision and the installation efficiency of the antenna can be effectively improved, and meanwhile, the manufacturing cost, the installation cost and the transportation cost can be reduced.
In order to solve the technical problems, the invention is realized by the following technical scheme.
A high-precision hexagonal space double-layer reflecting surface antenna back frame is characterized in that: the antenna comprises a left space frame and a right space frame which are in mirror symmetry, wherein the left space frame comprises an upper chord plane 1 used for being fixedly connected with an antenna reflecting surface and a lower chord plane 2 used for providing a stable supporting structure, the upper chord plane 1 and the lower chord plane 2 are arranged in a front-back opposite mode, and an equidistant cavity area is formed between the upper chord plane 1 and the lower chord plane 2;
the upper chord plane 1 comprises a plurality of groups of upper chord parts, each group of upper chord parts is formed by connecting three upper chords end to form a closed triangle, each upper chord part is connected and arranged to form a curved surface structure with a reflection valley, each upper chord group shares one upper chord part with a common side intersected with the adjacent upper chord group, and a net plane structure with a plurality of triangle empty areas is formed by a plurality of upper chord groups;
the lower chord plane 2 comprises a plurality of groups of lower chord parts, each group of lower chord parts is formed by connecting three lower chord parts end to form a closed triangle, each lower chord part is connected and arranged to form a curved surface structure with a reflection valley, each lower chord part shares an upper chord part with a common side intersected with the adjacent lower chord part, and a net plane structure with a plurality of triangle empty areas is formed by a plurality of lower chord parts;
the centers of the upper chord parts and the lower chord parts are staggered, the vertex of each upper chord part coincides with the center vertical line of the three lower chord parts which are sequentially connected, the vertex of each lower chord part is connected to the fixed point of the upper chord part on the center vertical line through a space diagonal rod 3 to form a space three-sided golden character structure, and each space diagonal rod 3 is positioned in the cavity area;
the left space frame and the right space frame are connected through a plurality of equidistant cross bars, and the equidistant cross bars isolate a plurality of linearly and sequentially arranged rectangles.
Further, the upper chord plane 1 is a hexagon with each side being a broken line along the line.
Further, the lower chord plane structure further comprises a supporting frame 7, an opening area for accommodating the supporting frame 7 is formed in the lower center portion of the lower chord plane 2, and the supporting frame 7 is arranged in the opening area and fixedly connected with the upper chord plane 1.
Further, the supporting frame 7 is trapezoidal.
Further, the device also comprises a door-shaped frame 5, wherein the door-shaped frame 5 consists of a left door-shaped frame and a right door-shaped frame which are symmetrical left and right to form mirror images, the left door-shaped frame and the right door-shaped frame are connected through a flange plate, and the left door-shaped frame and the right door-shaped frame are connected to corresponding vertexes of the supporting frame 7 through two V-shaped frames.
Furthermore, the upper chord member, the lower chord member, the space diagonal rods 3 and the side diagonal rods 4 are fastened to the conical head of the circular tube through high-strength bolts with protruding end parts and nuts.
Further, a middle reinforcing support rod connected to the lower bottom edge by the upper bottom edge is fixed along the central line of the support frame 7, the upper bottom edge and the lower bottom edge of the support frame 7 are steel square tubes, the waist edges at two sides are steel rectangular tubes, and the middle reinforcing support rod is a steel rectangular tube.
Further, the supporting frame 7 comprises a left supporting lug 7-1 and a right supporting lug 7-2, and the left supporting lug 7-1 and the right supporting lug 7-2 are connected with the long bottom edge of the supporting frame 7 through a flange plate; the supporting frame 7 further comprises a supporting flange 7-3, and the supporting flange 7-3 is connected with the extending part of the middle reinforcing supporting rod of the supporting frame 7.
Compared with the background technology, the invention has the following beneficial effects:
1 compared with the prior art, the antenna back frame adopts a hexagonal structure, overcomes the defect that the edge of the traditional circular or elliptic structure is not easy to process, and simplifies the design of the antenna back frame and the panel; the upper chord surface of the back frame is formed by triangular units, so that the back frame has stable mechanical properties and can improve the surface accuracy of the antenna.
2, the upper chord surface and the lower chord surface are connected through a triangular pyramid structure, so that the rod members are distributed in a space uniform distribution, the defect that the traditional back frame radiation beam is of a planar structure is overcome, the rigidity of the antenna back frame is greatly improved, and the dynamic characteristic of an antenna system is enhanced.
The upper chord surface, the lower chord surface, the space inclined rod and the side inclined rod of the antenna back frame are all connected by adopting the numerically-controlled bolt balls, so that the assembled antenna back frame has high precision and good interchangeability, and is particularly suitable for mass production and manufacture.
The antenna back frame is composed of the rod piece structure, and the central body part of the traditional reflecting surface antenna is omitted, so that the processing difficulty is reduced, and the weight of the antenna back frame is reduced.
And all the rods and structural members of the 5-antenna back frame are connected through bolt balls and flange plates, and the disassembled transportable unit is suitable for road transportation and standard containers.
The upper chord surface of the antenna back frame structure is composed of triangular units, is very suitable for a three-point support panel, and is more suitable for a large-scale high-precision reflecting surface antenna back frame because the three-point support panel has no redundant constraint and is used for a high-frequency high-precision telescope antenna.
In a word, the invention has ingenious conception, clear thought and easy realization, solves the problems of low structural accuracy and heavy weight of the traditional reflector antenna back frame, improves the rigidity and the mounting accuracy of the antenna back frame, and is an important improvement on the prior art.
Drawings
FIG. 1 is a general block diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the top chord structure of an embodiment of the present invention;
FIG. 3 is a schematic view of the lower chord plane structure of an embodiment of the invention;
FIG. 4 is a schematic view of the spatial and side diagonal structures of an embodiment of the present invention;
FIG. 5 is a door frame structure diagram of an embodiment of the present invention;
FIG. 6 is a diagram of a connection bracket structure of an embodiment of the present invention;
FIG. 7 is a three-sided golden character structure diagram of the space;
FIG. 8 is a block diagram of a support frame;
the meaning of each reference numeral in the figures is as follows: the upper chord plane 1, the upper chord member 1a, the lower chord plane 2, the space diagonal rod 3, the space three-sided golden character structure 4, the door-shaped frame 5, the supporting frame 7, the left support lug 7-1, the right support lug 7-2 and the supporting flange plate 7-3.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
As shown in fig. 1-3, a high-precision hexagonal space double-layer reflecting surface antenna back frame is provided, which comprises a left space frame and a right space frame which are mirror symmetry, wherein the left space frame comprises an upper chord plane 1 for fixedly connecting with an antenna reflecting surface and a lower chord plane 2 for providing a stable supporting structure, the upper chord plane 1 and the lower chord plane 2 are arranged in a front-back or upper-lower opposite manner, an equidistant cavity area is formed between the upper chord plane 1 and the lower chord plane 2, and a connecting structure for connecting the upper chord plane 1 and the lower chord plane 2 is arranged in the cavity area
As shown in fig. 2, the upper chord plane 1 includes multiple groups of upper chord parts, each group of upper chord parts is formed by connecting three upper chords end to form a closed triangle, each upper chord 1a is arranged in a connecting way to form a curved surface structure with a reflection valley, each upper chord group shares one upper chord with a common side intersecting with the adjacent upper chord group, and a net plane structure with multiple triangle empty areas is formed by multiple upper chord groups;
as shown in fig. 3, the lower chord plane 2 comprises a plurality of groups of lower chord parts, each group of lower chord parts is formed by connecting three lower chords end to form a closed triangle, each lower chord part is connected and arranged to form a curved surface structure with a reflection valley, each lower chord group shares an upper chord part with a common side intersected with the adjacent lower chord group, a net plane structure with a plurality of triangle empty areas is formed by a plurality of lower chord groups, and the upper chord parts, the lower chord parts, the space diagonal rods 3 and the side diagonal rods 4 are all fastened to a circular pipe cone head through high-strength bolts with protruding end parts and nuts;
as shown in fig. 1 and 3, the centers of the upper chord parts and the lower chord parts are staggered, the vertex of each upper chord part coincides with the center vertical line of the three lower chord parts which are sequentially connected, the vertex of each lower chord part is connected to the fixed point of the upper chord part on the center vertical line through a space diagonal rod 3 to form a space three-sided golden character structure 4, and each space diagonal rod 3 is positioned in the cavity area and connected to form an integral antenna body structure.
The left space frame and the right space frame are connected through a plurality of equidistant cross bars, the equidistant cross bars isolate a plurality of linearly and sequentially arranged rectangles, and the upper chord plane 1 is a hexagon with each edge being a broken line along the line.
The support frame 7 is arranged in the opening area and fixedly connected with the upper chord plane 1, and the support frame 7 is trapezoidal.
As shown in fig. 5 to 7, a gate frame 5 is disposed at the back of the antenna body, the gate frame 5 is composed of a left gate frame and a right gate frame which are symmetric left and right to form mirror images, the left gate frame and the right gate frame are connected through a flange plate, the left gate frame and the right gate frame are connected to corresponding vertexes of a supporting frame 7 through two V-shaped frames, a middle reinforcing supporting rod connected to a lower bottom edge by an upper bottom edge is fixed along a central line of the supporting frame 7, the upper bottom edge and the lower bottom edge of the supporting frame 7 are steel square tubes, two side waist edges are steel rectangular tubes, and the middle reinforcing supporting rod is a steel rectangular tube.
The support frame 7 comprises a left support lug 7-1 and a right support lug 7-2, and the left support lug 7-1 and the right support lug 7-2 are connected with the long bottom edge of the support frame 7 through a flange plate; the supporting frame 7 further comprises a supporting flange 7-3, and the supporting flange 7-3 is connected with the extending part of the middle reinforcing supporting rod of the supporting frame 7.
The foregoing description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (5)
1. A high-precision hexagonal space double-layer reflecting surface antenna back frame is characterized in that: the antenna comprises a left space frame and a right space frame which are in mirror symmetry, wherein the left space frame comprises an upper chord surface (1) for fixedly connecting with an antenna reflecting surface and a lower chord surface (2) for providing a stable supporting structure, the upper chord surface (1) and the lower chord surface (2) are arranged in a front-back opposite mode, and a cavity area with equal space is formed between the upper chord surface (1) and the lower chord surface (2);
the upper chord surface (1) comprises a plurality of groups of upper chord parts, each group of upper chord parts is formed by connecting three upper chord parts end to form a closed triangle, each upper chord part is connected and arranged to form a curved surface structure with a reflection valley, each upper chord part shares one upper chord part with a common side intersected with the adjacent upper chord part, and a net surface structure with a plurality of triangle empty areas is formed by a plurality of upper chord parts;
the lower chord surface (2) comprises a plurality of groups of lower chord parts, each group of lower chord parts is formed by connecting three lower chord parts end to form a closed triangle, each lower chord part is connected and arranged to form a curved surface structure with a reflection valley, each lower chord part shares one lower chord part with a common side intersected with the adjacent lower chord part, and a net surface structure with a plurality of triangle empty areas is formed by a plurality of lower chord parts;
the centers of the upper chord parts and the lower chord parts are staggered, the top point of each upper chord part coincides with the center vertical line of the three lower chord parts which are sequentially connected, the top point of each lower chord part is connected to the fixed point of the upper chord part on the center vertical line through a space diagonal (3) to form a space three-sided golden character structure, and each space diagonal (3) is positioned in the cavity area;
the left space frame and the right space frame are connected through a plurality of equidistant cross bars, and the equidistant cross bars isolate a plurality of linearly and sequentially arranged rectangles; the upper chord surface (1) is hexagonal, and each edge of the upper chord surface is a broken line along the line;
the support device also comprises a support frame (7), wherein an opening area for accommodating the support frame (7) is formed in the lower center part of the lower chord surface (2), and the support frame (7) is arranged in the opening area and is fixedly connected with the upper chord surface (1);
the support frame (7) comprises a left support lug (7-1) and a right support lug (7-2), and the left support lug (7-1) and the right support lug (7-2) are connected with the long bottom edge of the support frame (7) through a flange plate; the support frame (7) further comprises a support flange plate (7-3), and the support flange plate (7-3) is connected with the extension part of the middle reinforcing support rod of the support frame (7).
2. The high-precision hexagonal space double-layer reflecting surface antenna back frame according to claim 1, wherein: the supporting frame (7) is trapezoid.
3. The high-precision hexagonal space double-layer reflecting surface antenna back frame according to claim 1, wherein: the novel support frame also comprises a door-shaped frame (5), wherein the door-shaped frame (5) consists of a left door-shaped frame and a right door-shaped frame which are symmetrical left and right to form mirror images, the left door-shaped frame is connected with the right door-shaped frame through a flange plate, and the left door-shaped frame and the right door-shaped frame are connected to corresponding top points of the support frame (7) through two V-shaped frames.
4. A high precision hexagonal space dual layer reflector antenna back frame as in claim 3 wherein: the upper chord member, the lower chord member, the space diagonal rods (3) and the side diagonal rods (4) are fastened to the conical head of the circular tube through bolts with protruding end parts and nuts.
5. The high-precision hexagonal space double-layer reflecting surface antenna back frame according to claim 1, wherein: the middle reinforcing support rod connected to the lower bottom edge through the upper bottom edge is fixed along the central line of the support frame (7), the upper bottom edge and the lower bottom edge of the support frame (7) are steel square tubes, the waist edges on two sides are steel rectangular tubes, and the middle reinforcing support rod is a steel rectangular tube.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552047.3A CN109449604B (en) | 2018-12-18 | 2018-12-18 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
| PCT/CN2019/122308 WO2020125384A1 (en) | 2018-12-18 | 2019-12-02 | High-precision hexagonal space double-layer reflective surface antenna back frame |
| ZA2021/05019A ZA202105019B (en) | 2018-12-18 | 2021-07-16 | High-precision hexagonal space double-layer reflector antenna backup structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552047.3A CN109449604B (en) | 2018-12-18 | 2018-12-18 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109449604A CN109449604A (en) | 2019-03-08 |
| CN109449604B true CN109449604B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811552047.3A Active CN109449604B (en) | 2018-12-18 | 2018-12-18 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109449604B (en) |
| WO (1) | WO2020125384A1 (en) |
| ZA (1) | ZA202105019B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449604B (en) * | 2018-12-18 | 2024-03-26 | 中国电子科技集团公司第五十四研究所 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
| CN110289476B (en) * | 2019-07-26 | 2023-09-26 | 中国电子科技集团公司第五十四研究所 | High-precision pose continuous adjusting device of reflecting surface antenna panel and manufacturing method thereof |
| CN110289478B (en) * | 2019-07-26 | 2023-10-27 | 中国电子科技集团公司第五十四研究所 | Double-offset antenna auxiliary surface support arm based on space hybrid structure and manufacturing method |
| CN110289477B (en) * | 2019-07-26 | 2024-05-24 | 中国电子科技集团公司第五十四研究所 | Antenna auxiliary face back frame with single-layer space structure and inner and outer edge number of 1 to 2 and manufacturing method |
| CN110299599B (en) * | 2019-07-26 | 2024-02-13 | 中国电子科技集团公司第五十四研究所 | Space structure counterweight device for reflecting surface antenna |
| CN112436291B (en) * | 2020-10-30 | 2022-08-12 | 北京卫星制造厂有限公司 | High-precision fixed-surface antenna reflector composite material connecting structure |
| CN113097620A (en) * | 2021-03-29 | 2021-07-09 | 苏州五源寰宇科技有限公司 | Carrier rocket lithium ion battery pack with light weight design |
| CN114256604B (en) * | 2021-12-09 | 2024-04-16 | 上海宇航系统工程研究所 | Parabolic cylinder antenna based on triangular prism foldable unit |
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| GB0101745D0 (en) * | 2001-01-23 | 2001-03-07 | Harrison John | Reflector dish |
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| CN109449604B (en) * | 2018-12-18 | 2024-03-26 | 中国电子科技集团公司第五十四研究所 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
-
2018
- 2018-12-18 CN CN201811552047.3A patent/CN109449604B/en active Active
-
2019
- 2019-12-02 WO PCT/CN2019/122308 patent/WO2020125384A1/en active Application Filing
-
2021
- 2021-07-16 ZA ZA2021/05019A patent/ZA202105019B/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06288008A (en) * | 1993-04-02 | 1994-10-11 | Shimizu Corp | Large space truss frame |
| WO2003003517A1 (en) * | 2001-06-12 | 2003-01-09 | Elguja Medzmariashvili | Deployable space reflector antenna |
| US7143550B1 (en) * | 2002-09-19 | 2006-12-05 | Conservatek Industries, Inc. | Double network reticulated frame structure |
| CN201345409Y (en) * | 2009-02-13 | 2009-11-11 | 中国电子科技集团公司第五十四研究所 | Antenna back frame device with balanced and stable space grid type reflecting plane |
| CN102173312A (en) * | 2011-03-10 | 2011-09-07 | 西安空间无线电技术研究所 | Large spatial assembly type antenna reflector modular unit and assembly method thereof |
| CN108155482A (en) * | 2017-12-25 | 2018-06-12 | 中国电子科技集团公司第五十四研究所 | A kind of structure and its method of adjustment of high-precision reflector antenna assembled panel |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2020125384A1 (en) | 2020-06-25 |
| CN109449604A (en) | 2019-03-08 |
| ZA202105019B (en) | 2022-07-27 |
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