CN108649347B - Light cable membrane microstrip phased array antenna structure - Google Patents
Light cable membrane microstrip phased array antenna structure Download PDFInfo
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- CN108649347B CN108649347B CN201810211462.6A CN201810211462A CN108649347B CN 108649347 B CN108649347 B CN 108649347B CN 201810211462 A CN201810211462 A CN 201810211462A CN 108649347 B CN108649347 B CN 108649347B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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Abstract
The invention relates to a light cable membrane microstrip phased array antenna structure. According to the invention, the radiation layer copper-clad film, the stratum copper-clad film and the cable net are fixedly arranged on the rigid frame; the rigid frame is of a frame structure, the cable net is positioned in the middle of the rigid frame, and the radiation layer copper-clad film and the stratum copper-clad film are respectively positioned on the upper surface and the lower surface of the cable net in the rigid frame; the cable net is provided with grid nodes which are respectively bonded with the radiation layer copper-clad film and the stratum copper-clad film; the upper surface of the radiation layer copper-clad film is provided with a copper foil layer as a copper foil radiation unit, and the upper surface of the stratum copper-clad film is provided with stratum copper foil. Compared with the conventional microstrip phased array antenna, the microstrip phased array antenna has the advantages that the surface density can be remarkably reduced, the weight is lighter, the requirement of the large-scale and ultra-large-scale C-band microstrip phased array antenna on the weight can be met, and the thermal deformation requirement of the 5.8 GHz-10 GHz band microstrip phased array can be met.
Description
Technical Field
The invention belongs to the technical field of aerospace microstrip phased array antennas, and relates to a light cable membrane microstrip phased array antenna structure.
Background
The space solar power station consists of a satellite, a huge solar cell array, an ultra-large space microwave transmitting antenna and a ground huge microwave receiving antenna. The electric energy collected by the solar cell array is transmitted to the ground in the form of microwaves by the space microwave antenna, is received by the ground giant microwave antenna, and is transmitted into a ground power grid for use. The space solar power station is hopeful to solve the environmental pollution problem caused by energy crisis and thermal power generation, so the space solar power station becomes a hot spot for research in various countries. However, most researches are in a research stage and do not enter an engineering stage due to the limitations of the current state of the art, the cost sources and the like. The space microwave transmitting antenna is a key component with great technical difficulty in development.
According to the current research, if a transmitting antenna on a satellite adopts a 5.8 GHz-10 GHz frequency band microstrip phased array antenna, the diameter of the antenna needs 200 meters, and the size of the antenna is increased by more than ten times than that of the existing satellite antenna. The ultra-large antenna also solves the problems of profile errors caused by thermal deformation and excessive weight of the antenna.
Phased array antennas are a common antenna form for Synthetic Aperture Radar (SAR) satellites, and currently transmitted phased array antennas have the defects of high weight, high manufacturing cost and low storage efficiency. SAR satellites transmitted by 2000 abroad comprise SeaSAT, ERS-1/2, JERS-1 and RADASAT-1, the antenna structure forms are folding unfolding phased array antennas, and the weight of the antennas is large. The model transmitted after 2000 includes: SAR Lupe, COSMO-SkyMed, terraSAR-X, tanDEM-X, TECSAR and the like, and the phased array antenna is adopted by the rest antenna structures except the SAR Lupe which is a solid surface parabolic antenna, but the size and the weight of the antenna are reduced, and the antenna surface density is about 10kg/m < 2 >. The size of the microstrip phased array antenna of the first SAR satellite which is transmitted in China is only 10m multiplied by 3.4m, but the surface density of the microstrip phased array antenna exceeds 14kg/m2. Therefore, the weight of the conventional phased array antenna is still too heavy to meet the requirement of the microwave transmitting antenna of the solar power station with ultra-large scale space, and the lightweight design is needed.
The traditional microstrip phased array antenna generally comprises a planar array composed of a plurality of subarrays, and each antenna subarray is composed of an electric board and a structural board. The electric board consists of two layers of Kevlar/Nomex honeycomb boards, two layers of discontinuous copper foil radio frequency radiation units are arranged on the surface and in the middle of the electric board, a continuous copper foil grounding layer is arranged below the electric board, and the structural board is a carbon fiber aluminum honeycomb sandwich board. In order to reduce thermal deformation, a thermal release design is adopted between the electric board and the structural board, and the thermal release design comprises a small number of rigid connecting pieces, a large number of flexible connecting pieces and a large number of metal embedded parts, so that the weight of the antenna subarray board is large. Therefore, a light cable membrane microstrip phased array antenna structure is provided.
Disclosure of Invention
The invention aims to provide a light cable film microstrip phased array antenna structure.
The invention comprises a radiation layer copper-clad film, a stratum copper-clad film, a rigid frame and a cable net; the radiation layer copper-clad film, the stratum copper-clad film and the cable net are fixedly arranged on the rigid frame; the rigid frame is of a frame structure, the cable net is positioned in the middle of the rigid frame, and the radiation layer copper-clad film and the stratum copper-clad film are respectively positioned on the upper surface and the lower surface of the cable net in the rigid frame; the cable net is provided with grid nodes which are respectively bonded with the radiation layer copper-clad film and the stratum copper-clad film; the upper surface of the radiation layer copper-clad film is provided with a copper foil layer as a copper foil radiation unit, and the upper surface of the stratum copper-clad film is provided with stratum copper foil.
The grid nodes adopt anti-drop wire weaving nodes.
The base materials of the radiation layer copper-clad film and the stratum copper-clad film are polyimide films.
The cable net adopts high-strength fiber with negative thermal expansion coefficient.
The cable net is prestressed.
The stratum copper foil is provided with a tiny gap.
Compared with the conventional microstrip phased array antenna, the micro-strip phased array antenna has the advantages that the surface density can be remarkably reduced, the mass is lighter, the requirements of the large-scale and ultra-large-scale C-band microstrip phased array antenna on the mass can be met, the thermal deformation requirement of the 5.8 GHz-10 GHz-band microstrip phased array can be met, and the micro-strip phased array antenna can be applied to ultra-large-scale space solar power station microwave transmitting antennas. The antenna can also be used as a lightweight design of a small satellite spaceborne SAR antenna.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
fig. 2 is an exploded view of the overall structure of the present invention.
Detailed Description
The structure of the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a light cable film microstrip phased array antenna structure comprises a radiation layer copper-clad film 1, a stratum copper-clad film 2, a rigid frame 3 and a cable net 4. The radiation layer copper-clad film 1, the stratum copper-clad film 2 and the cable net 4 are fixedly arranged on the rigid frame 3; the rigid frame 3 is of a frame structure, the cable net 4 is positioned in the middle of the rigid frame 3, and the radiation layer copper-clad film 1 and the stratum copper-clad film 2 are respectively positioned on the upper surface and the lower surface of the cable net 4 in the rigid frame 3. The cable net 4 is provided with grid nodes 5, and the grid nodes 5 are woven by adopting anti-drop wires and are respectively bonded with the radiation layer copper-clad film 1 and the stratum copper-clad film 2. The upper surface of the radiation layer copper-clad film 1 is provided with a copper foil layer as a copper foil radiation unit 6, the upper surface of the stratum copper-clad film 2 is provided with stratum copper foil 7, and the stratum copper foil 7 is uniformly provided with micro gaps 8.
The radiation layer copper-clad film 1 and the stratum copper-clad film 2 are used for meeting the requirement of electric performance, and the substrate materials are polyimide films 5. Polyimide films with different brands and thicknesses can be selected according to different structural sizes of specific antennas.
The cable mesh uses high strength fibers with a negative coefficient of thermal expansion including, but not limited to, kevalr and composites thereof.
According to the electrical performance requirements and engineering experience, parameters are preliminarily determined, a finite element model is established by using Patran/Nastran finite element software, the thickness of a polyimide film, the thermal expansion coefficient of a cable network, the cross-sectional shape and the size of the cable network are used as parameters for analysis and optimization, and the influence of each parameter on the maximum thermal deformation peak value, the thermal deformation RMS value and the model quality is researched to obtain a preferred parameter value.
In this example, the thickness of the polyimide film was 0.127mm, and the dimensions were 560mm. Times.560 mm. An 8 multiplied by 8 array of copper foil radiating units are attached to the first layer film, the unit size is 30mm multiplied by 30mm, the thickness is 2 mu m, and the interval between copper foils is 40mm; the second film was attached with a copper foil of a thickness of 2 μm, and the copper foil was divided into 4X 4 units with a 1mm minute gap 7. The cable net adopts a rectangular section with the length of 1.9mm multiplied by 1.8mm, the cable spacing is 10mm, and the material is with the thermal expansion coefficient of-4 multiplied by 10 -6 Kevlar fiber at a temperature of/DEG C, and the grid nodes are bonded to the two films. The rigid frame adopts an M55J zero expansion laminated board, and two polyimide films and a cable net are connected to the frame.
Under the extremely high and low temperature load of the geosynchronous orbit at the temperature of minus 170 ℃ to 150 ℃, the maximum thermal deformation value of the geosynchronous orbit at the temperature of 20 ℃ relative to the normal temperature is 0.076mm, the thermal deformation RMS value is 0.028mm, and the heat deformation requirements of the microstrip phased array of 5.8GHz to 10GHz are satisfied. The antenna structure of this example, regardless of the frame, had an areal density of 1.8kg/m 2 . Compared with the traditional microwave phased array antenna, the surface density is lower.
The above-described embodiments are intended to illustrate the present invention, not to limit it, and any modifications and variations made thereto are within the spirit of the invention and the scope of the appended claims.
Claims (6)
1. A light cable membrane microstrip phased array antenna structure comprises a radiation layer copper-clad membrane, a stratum copper-clad membrane, a rigid frame and a cable net; the method is characterized in that: the radiation layer copper-clad film, the stratum copper-clad film and the cable net are fixedly arranged on the rigid frame; the rigid frame is of a frame structure, the cable net is positioned in the middle of the rigid frame, and the radiation layer copper-clad film and the stratum copper-clad film are respectively positioned on the upper surface and the lower surface of the cable net in the rigid frame; the cable net is provided with grid nodes which are respectively bonded with the radiation layer copper-clad film and the stratum copper-clad film; the upper surface of the radiation layer copper-clad film is provided with a copper foil layer as a copper foil radiation unit, and the upper surface of the stratum copper-clad film is provided with stratum copper foil.
2. A lightweight cable membrane microstrip phased array antenna structure as in claim 1, wherein: the grid nodes adopt anti-drop wire weaving nodes.
3. A lightweight cable membrane microstrip phased array antenna structure as in claim 1, wherein: the base materials of the radiation layer copper-clad film and the stratum copper-clad film are polyimide films.
4. A lightweight cable membrane microstrip phased array antenna structure as in claim 1, wherein: the cable net adopts high-strength fiber with negative thermal expansion coefficient.
5. A lightweight cable membrane microstrip phased array antenna structure according to claim 1 or 4, wherein: the cable net is prestressed.
6. A lightweight cable film microstrip phased array antenna structure as in claim 1 or 3, wherein: the stratum copper foil is provided with a tiny gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810211462.6A CN108649347B (en) | 2018-03-15 | 2018-03-15 | Light cable membrane microstrip phased array antenna structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810211462.6A CN108649347B (en) | 2018-03-15 | 2018-03-15 | Light cable membrane microstrip phased array antenna structure |
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| Publication Number | Publication Date |
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| CN108649347A CN108649347A (en) | 2018-10-12 |
| CN108649347B true CN108649347B (en) | 2023-07-25 |
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| CN201810211462.6A Active CN108649347B (en) | 2018-03-15 | 2018-03-15 | Light cable membrane microstrip phased array antenna structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113452316A (en) * | 2021-06-29 | 2021-09-28 | 中国电子科技集团公司第十八研究所 | Stretched film type solar cell array structure capable of loading pretightening force |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593576A (en) * | 2012-02-29 | 2012-07-18 | 西安空间无线电技术研究所 | Method for preparing pre-tension membrane structure antenna |
| CN102615868A (en) * | 2012-03-29 | 2012-08-01 | 哈尔滨工业大学 | Network cable skin strength-bearing material |
| CN202454720U (en) * | 2012-02-29 | 2012-09-26 | 西安空间无线电技术研究所 | Thermal-stabilizing framework of thin film antenna |
| CN207994080U (en) * | 2018-03-15 | 2018-10-19 | 浙江大学 | Light-duty rope film micro-strip phased array antenna structure |
-
2018
- 2018-03-15 CN CN201810211462.6A patent/CN108649347B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593576A (en) * | 2012-02-29 | 2012-07-18 | 西安空间无线电技术研究所 | Method for preparing pre-tension membrane structure antenna |
| CN202454720U (en) * | 2012-02-29 | 2012-09-26 | 西安空间无线电技术研究所 | Thermal-stabilizing framework of thin film antenna |
| CN102615868A (en) * | 2012-03-29 | 2012-08-01 | 哈尔滨工业大学 | Network cable skin strength-bearing material |
| CN207994080U (en) * | 2018-03-15 | 2018-10-19 | 浙江大学 | Light-duty rope film micro-strip phased array antenna structure |
Non-Patent Citations (1)
| Title |
|---|
| 星载微带阵天线的热变形分析及实验验证;韦娟芳,关富玲,赵人杰,王峰斌,陶晓霞;中国空间科学技术(06);第66-71页 * |
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