CN107895847A - The deployable symmetrical paraboloid main antenna reflector of Superimposed - Google Patents
The deployable symmetrical paraboloid main antenna reflector of Superimposed Download PDFInfo
- Publication number
- CN107895847A CN107895847A CN201711254517.3A CN201711254517A CN107895847A CN 107895847 A CN107895847 A CN 107895847A CN 201711254517 A CN201711254517 A CN 201711254517A CN 107895847 A CN107895847 A CN 107895847A
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- China
- Prior art keywords
- sector
- centerbody
- fan
- drive mechanism
- covering
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H01Q15/161—Collapsible reflectors
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The present invention proposes that a kind of deployable symmetrical paraboloid main antenna reflector of Superimposed, including covering of the fan, feed system, centerbody, covering of the fan are evenly dividing as N number of sector；Include drive mechanism inside centerbody；All sector roots are both connected in centerbody, one of sector is fixed sector, remaining sector is active sector, and active sector root is connected with the drive mechanism in centerbody, and central shaft that can be around centerbody under drive mechanism drive is spinned ascending motion.The influence factor of the storage ratio of the scheme of taking down the exhibits of the present invention is antenna aperture, centerbody size, sector radial dimension etc., wherein sector radial dimension reduces with sector piecemeal increasing number, centerbody height increases with sector piecemeal increasing number, and centerbody radial dimension becomes big with antenna aperture and increased.By theory analysis as can be seen that the present invention take down the exhibits scheme in theory its store ratio and can accomplish within 0.1, but consider that engineering is actual, generally it is stored ratio and can reach 0.2~0.3, better than several deployment schemes being currently known.
Description
Technical field
The present invention relates to space antenna technical field, specially a kind of deployable symmetrical paraboloid antenna principal reflection of Superimposed
Device.
Background technology
Symmetrical paraboloid antenna refers to that main transmitter rotates to form paraboloidal one for parabola bus relative to central shaft
Kind antenna, main Types have forward-feed type parabolic antenna, Cassegrain antenna, Pascal Greggory antenna and ring-focus antenna.
Under some specific occasions, as in space environment, it is necessary to symmetrical paraboloid main antenna reflector be collapsed to smaller
Gathering size in, can deposit in less space, be spread out again to working size before work.This type
Symmetrical paraboloid antenna be referred to as deployable symmetrical paraboloid antenna.
Symmetrical paraboloid main antenna reflector deployment schemes design an important indicator for storage ratio, that is, collapse size with
The ratio between working size, the parking space stored under normal circumstances than smaller deployment schemes needed for it are smaller.What is be currently known is several
Kind symmetrical paraboloid antenna reflector deployment schemes have sunflower formulas, DAISY formulas, MEA formulas, SSDA formulas, but these expansion sides
The storage of case is than larger (>=0.44), it is impossible to meets design requirement, it is necessary to design a kind of storage than smaller scheme of taking down the exhibits.
The content of the invention
To solve the problems, such as existing symmetrical paraboloid antenna reflector deployment schemes storage than larger, the present invention proposes one
The kind deployable symmetrical paraboloid main antenna reflector of Superimposed.
The technical scheme is that：
The deployable symmetrical paraboloid main antenna reflector of a kind of Superimposed, including covering of the fan, feed system, centerbody,
It is characterized in that：The covering of the fan is evenly dividing as N number of sector；Include drive mechanism inside the centerbody；All sector roots
It is both connected in centerbody, one of sector is fixed sector, and remaining sector is active sector, active sector root and center
Internal drive mechanism is connected, and central shaft that can be around centerbody under drive mechanism drive is spinned ascending motion.
Further preferred scheme, a kind of deployable symmetrical paraboloid main antenna reflector of Superimposed, its feature exist
In：It is living by positioned at side adjacent activities sector of the fixed sector in rotation direction opposite direction when the covering of the fan collapses process
The helical rotation angle of dynamic sector successively is 2 π/N, 2*2 π/N, 3*2 π/N ... (N-1) * 2 π/N；When the drive mechanism angle of climb reaches
During to actan [N*h/ (π * D)], N number of sector stacks completion successively, and wherein h is sector thickness, body diameter centered on D；The fan
Face expansion process is the inverse process of gathering process, and after movable covering of the fan is deployed into position, drive mechanism can be by work in centerbody
Dynamic covering of the fan position locking.
Beneficial effect
The influence factor of the storage ratio of the scheme of taking down the exhibits of the present invention is antenna aperture, centerbody size, sector radial dimension
Deng, wherein sector radial dimension reduces with sector piecemeal increasing number, centerbody height increase with sector piecemeal increasing number
Height, centerbody radial dimension become big with antenna aperture and increased.By theory analysis as can be seen that the scheme reason of taking down the exhibits of the present invention
Storing ratio by upper its can accomplish within 0.1, but consider that engineering is actual, and generally it is stored ratio and can reach 0.2~0.3, better than current
Known several deployment schemes.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1：Superimposed symmetrical paraboloid deployable antenna main reflector structure expanded schematic diagram；
Fig. 2：Superimposed symmetrical paraboloid deployable antenna main reflector structure collapses schematic diagram；
Wherein：1st, covering of the fan；2nd, centerbody；3rd, central axis.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
The deployable symmetrical paraboloid main antenna reflector of Superimposed in the present embodiment, including covering of the fan, feed system, center
Body (contains drive mechanism), as shown in Figure 1.The multiple covering of the fans of symmetrical paraboloid antenna reflector are stacked successively during gathering and put
Put；During expansion, each covering of the fan is driven around central shaft rotary expansion using drive mechanism and is locked.
Fig. 1 symmetrical paraboloid sector antenna is evenly dividing as multiple sectors；All sector roots are both connected to center
In vivo, one of sector is fixed sector, and remaining sector is active sector, active sector root and the driving machine in centerbody
Structure is connected, and central shaft that can be around centerbody under drive mechanism drive is spinned ascending motion.
If the sum of active sector and fixed sector is N, sector thickness is h, a diameter of D of centerbody.During gathering, each activity
Sector is spinned ascending motion under drive mechanism effect around centerbody central axis, by anti-in rotation direction positioned at fixed sector
The side adjacent activities sector in direction starts, and the helical rotation angle of active sector successively is 2 π/N, 2*2 π/N, 3*2 π/N ...
(N-1)*2π/N；When the drive mechanism angle of climb reaches actan [N*h/ (π * D)], N number of sector stacks completion successively, such as Fig. 2 institutes
Show.And covering of the fan expansion process is the inverse process of gathering process, and after movable covering of the fan is deployed into position, drive mechanism energy in centerbody
It is enough to lock movable covering of the fan position.
The present invention take down the exhibits scheme storage ratio influence factor for antenna aperture, centerbody size, sector radial dimension etc.,
Wherein sector radial dimension reduces with sector piecemeal increasing number, and centerbody height increases with sector piecemeal increasing number,
Centerbody radial dimension becomes big with antenna aperture and increased.It is stored ratio and can accomplished within 0.1 in theory, but considers that engineering is real
Border, generally its storage ratio can reach 0.2~0.3, better than several deployment schemes being currently known.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (2)
1. a kind of deployable symmetrical paraboloid main antenna reflector of Superimposed, including covering of the fan, feed system, centerbody, its feature
It is：The covering of the fan is evenly dividing as N number of sector；Include drive mechanism inside the centerbody；All sector roots are all connected with
In centerbody, one of sector is fixed sector, and remaining sector be active sector, in active sector root and centerbody
Drive mechanism is connected, and central shaft that can be around centerbody under drive mechanism drive is spinned ascending motion.
A kind of 2. deployable symmetrical paraboloid main antenna reflector of Superimposed according to claim 1, it is characterised in that：It is described
When covering of the fan collapses process, by positioned at side adjacent activities sector of the fixed sector in rotation direction opposite direction, active sector
Helical rotation angle successively is 2 π/N, 2*2 π/N, 3*2 π/N ... (N-1) * 2 π/N；When the drive mechanism angle of climb reaches
During actan [N*h/ (π * D)], N number of sector stacks completion successively, and wherein h is sector thickness, body diameter centered on D；The covering of the fan
Expansion process is the inverse process of gathering process, and after movable covering of the fan is deployed into position, drive mechanism can be by activity in centerbody
Covering of the fan position locks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711254517.3A CN107895847A (en) | 2017-12-04 | 2017-12-04 | The deployable symmetrical paraboloid main antenna reflector of Superimposed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711254517.3A CN107895847A (en) | 2017-12-04 | 2017-12-04 | The deployable symmetrical paraboloid main antenna reflector of Superimposed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107895847A true CN107895847A (en) | 2018-04-10 |
Family
ID=61806845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711254517.3A Pending CN107895847A (en) | 2017-12-04 | 2017-12-04 | The deployable symmetrical paraboloid main antenna reflector of Superimposed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107895847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197948A (en) * | 2020-01-06 | 2020-05-26 | 浏阳市梦想烟花制作燃放有限公司 | Signal transmitting device for firework setting-off ignition system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7423609B2 (en) * | 2004-09-10 | 2008-09-09 | Ayen Technology Ab | Collapsible parabolic reflector |
| CN201829621U (en) * | 2010-10-20 | 2011-05-11 | 佛山市健博通电讯实业有限公司 | Portable incision grid parabolic antenna |
| CN202018145U (en) * | 2011-01-28 | 2011-10-26 | 海德尔开曼有限公司 | Parabolic solar disk for collecting light and heat |
| US9331394B2 (en) * | 2011-09-21 | 2016-05-03 | Harris Corporation | Reflector systems having stowable rigid panels |
| CN105720349A (en) * | 2016-04-07 | 2016-06-29 | 西安交通大学 | Slide type unfolding umbrella-shaped antenna structure framework and unfolding method |
| CN105896020A (en) * | 2016-05-05 | 2016-08-24 | 湖南航天环宇通信科技股份有限公司 | Expandable fixed surface antenna |
-
2017
- 2017-12-04 CN CN201711254517.3A patent/CN107895847A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7423609B2 (en) * | 2004-09-10 | 2008-09-09 | Ayen Technology Ab | Collapsible parabolic reflector |
| CN201829621U (en) * | 2010-10-20 | 2011-05-11 | 佛山市健博通电讯实业有限公司 | Portable incision grid parabolic antenna |
| CN202018145U (en) * | 2011-01-28 | 2011-10-26 | 海德尔开曼有限公司 | Parabolic solar disk for collecting light and heat |
| US9331394B2 (en) * | 2011-09-21 | 2016-05-03 | Harris Corporation | Reflector systems having stowable rigid panels |
| CN105720349A (en) * | 2016-04-07 | 2016-06-29 | 西安交通大学 | Slide type unfolding umbrella-shaped antenna structure framework and unfolding method |
| CN105896020A (en) * | 2016-05-05 | 2016-08-24 | 湖南航天环宇通信科技股份有限公司 | Expandable fixed surface antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197948A (en) * | 2020-01-06 | 2020-05-26 | 浏阳市梦想烟花制作燃放有限公司 | Signal transmitting device for firework setting-off ignition system |
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Application publication date: 20180410 |
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