JPH11186840A - Satellite mounted antenna - Google Patents
Satellite mounted antennaInfo
- Publication number
- JPH11186840A JPH11186840A JP35496197A JP35496197A JPH11186840A JP H11186840 A JPH11186840 A JP H11186840A JP 35496197 A JP35496197 A JP 35496197A JP 35496197 A JP35496197 A JP 35496197A JP H11186840 A JPH11186840 A JP H11186840A
- Authority
- JP
- Japan
- Prior art keywords
- satellite
- antenna
- mounted antenna
- radio wave
- mirror surface
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Support Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
Abstract
(57)【要約】
【課題】 インフレータブルアンテナにみられる、注入
ガスの必要性やリドームの存在の問題点を解消し、軽量
化と、収納性の向上が図れる人工衛星搭載アンテナを提
供する。
【解決手段】 復元力のある柔軟材で展開される人工衛
星搭載アンテナ。
(57) [Summary] [PROBLEMS] To provide an antenna mounted on a satellite capable of solving the problems of the necessity of injecting gas and the presence of a redome, which are seen in an inflatable antenna, and achieving reduction in weight and improvement in storage. SOLUTION: An antenna mounted on a satellite deployed with a resilient flexible material.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は人工衛星搭載アンテ
ナに係り、特に展開方式の改良された人工衛星搭載アン
テナに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite-mounted antenna, and more particularly to a satellite-mounted antenna with an improved deployment system.
【０００２】[0002]
【従来の技術】人工衛星に搭載されるアンテナは、人工
衛星の搭載性の制約が大きいためにそれ程大型化するこ
とが困難である。そこで従来の衛星通信システムでは人
工衛星搭載アンテナを小型にし、その代わり地上局アン
テナを大型化することで通信回線を確保していた。しか
し、移動体衛星通信の需要が今後高まって行くと予想さ
れている。このため移動体地球局のアンテナは小型であ
ることが要求されるため、それに従って人工衛星搭載ア
ンテナの大型化、一例として径10〜15ｍが必要になって
いる。2. Description of the Related Art It is difficult to increase the size of an antenna mounted on an artificial satellite because of the large restrictions on the mountability of the artificial satellite. Therefore, in the conventional satellite communication system, the communication line is secured by reducing the size of the antenna mounted on the satellite and increasing the size of the ground station antenna. However, demand for mobile satellite communications is expected to increase in the future. For this reason, the antenna of the mobile earth station is required to be small, and accordingly, the size of the antenna mounted on the artificial satellite, for example, a diameter of 10 to 15 m is required.
【０００３】より大型のアンテナを人工衛星に搭載する
には、衛星打上げ時にはより小さく収納でき、軌道上で
より大きく展開する方式が求められ、かつアンテナの重
量は人工衛星の搭載能力に見合った重量でなければなら
ない。In order to mount a larger antenna on a satellite, it is necessary to use a system which can be stored smaller when the satellite is launched, and which can be deployed larger in orbit, and the weight of the antenna is a weight corresponding to the mounting capacity of the satellite. Must.
【０００４】現在、この大型アンテナの展開方式は世界
的に注目されている技術であり、様々な展開方式が考案
されている。その一つとしてインフレータブルアンテナ
が考案されているが、注入ガスの必要性やリドームの存
在が問題となっている。[0004] At present, the deployment method of this large antenna is a technology that has attracted attention worldwide, and various deployment methods have been devised. As one of them, an inflatable antenna has been devised, but the necessity of an injecting gas and the existence of a lidome are problems.
【０００５】[0005]
【発明が解決しようとする課題】上記従来の人工衛星搭
載アンテナには、その一例のインフレータブルアンテナ
が知られているが、注入ガスの必要性やリドームの存在
が問題点であった。As an example of the above-mentioned conventional satellite-mounted antenna, an inflatable antenna is known, but the necessity of an injecting gas and the presence of a redome are problems.
【０００６】本発明の目的は上記従来の人工衛星搭載ア
ンテナの問題点に鑑み、これを解決するために改良され
た人工衛星搭載アンテナを提供するにある。An object of the present invention is to provide an improved satellite-mounted antenna in order to solve the above-mentioned problems of the conventional antenna mounted on a satellite.
【０００７】[0007]
【課題を解決するための手段】本発明の人工衛星搭載ア
ンテナは、復元力のある柔軟材で展開されることを特徴
とする。また、遠心力により展張させる人工衛星搭載ア
ンテナが復元力のある柔軟材で形成された支持枠と、前
記支持枠内に取着され部分的に異なる収縮率分布を備え
かつ前記遠心力により展張させることにより一方の主面
が所望の鏡面形状を構成する鏡面部材と、前記鏡面部材
の他方の主面に被着され宇宙環境において硬化する電波
遮蔽層を具備したことを特徴とする。また、電波遮蔽層
が絶縁樹脂層であることを特徴とする。さらに鏡面部材
が収縮性あるメッシュでなることを特徴とするものであ
る。The antenna mounted on a satellite according to the present invention is characterized in that it is developed with a flexible material having resilience. Further, a satellite-mounted antenna to be expanded by centrifugal force is provided with a support frame formed of a flexible material having a restoring force, and is provided in the support frame and has a partially different shrinkage distribution and is expanded by the centrifugal force. In this case, one of the main surfaces has a mirror surface member having a desired mirror surface shape, and a radio wave shielding layer which is applied to the other main surface of the mirror surface member and hardens in a space environment. Further, the radio wave shielding layer is an insulating resin layer. Further, the mirror member is made of a contractible mesh.
【０００８】本発明によれば軽量で収納性の良い人工衛
星搭載アンテナを提供できる。According to the present invention, it is possible to provide an artificial satellite-mounted antenna which is lightweight and has good storability.
【０００９】[0009]
【発明の実施の形態】以下本発明の一実施例につき図面
を参照して詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.
【００１０】図１に一実施例の人工衛星搭載アンテナ 1
0 を展開させた状態を正面図で、図２に一実施例の人工
衛星搭載アンテナ10を収納させた状態を正面図で、図３
に一実施例の人工衛星搭載アンテナ10の展開シーケンス
図を夫々示している。FIG. 1 shows an antenna mounted on a satellite according to one embodiment.
FIG. 2 is a front view showing a state where the antenna 10 is deployed, FIG. 2 is a front view showing a state where the satellite-mounted antenna 10 of one embodiment is stored, and FIG.
FIG. 2 shows a development sequence diagram of the satellite-mounted antenna 10 of one embodiment.
【００１１】一実施例の人工衛星搭載アンテナ10は図１
に示すように、支持枠 1がスプリングバックなどの復元
力のある柔軟材で円型に形成されてなる。この柔軟材の
復元力がアンテナの展開機構を構成している。次に、ア
ンテナ鏡面 2 は、電波送受面であるその一方の主面
（表面）が遠心力によって所望の鏡面形状になるように
収縮分布を備えるメッシュ材など、収縮性材 2ａで構成
される。また、前記アンテナ鏡面の電波非送受面である
他方の主面（裏面）にはこれに塗布され宇宙環境に曝ら
されて硬化した樹脂層が電波遮蔽層 2ｂとなっている。FIG. 1 shows an antenna 10 mounted on a satellite according to one embodiment.
As shown in (1), the support frame 1 is formed in a circular shape from a flexible material having a restoring force such as spring back. The restoring force of this flexible material constitutes the deployment mechanism of the antenna. Next, the antenna mirror surface 2 is made of a shrinkable material 2a such as a mesh material having a shrinkage distribution so that one main surface (surface) of the radio wave transmitting / receiving surface has a desired mirror surface shape due to centrifugal force. On the other main surface (back surface) of the antenna mirror surface, which is the non-radio wave transmitting / receiving surface, a resin layer applied to the main surface and cured by being exposed to the space environment is a radio wave shielding layer 2b.
【００１２】次に一実施例の人工衛星搭載アンテナ10の
収納から展開に至る過程を図２および図３−ａ〜ｄを参
照して説明する。このアンテナは図２に例示されるよう
に折り畳まれて人工衛星20に搭載される。このときアン
テナ鏡面２の電波非送受面に塗布された一例の紫外線硬
化樹脂は未だ硬化していない。次に、アンテナはこの人
工衛星が軌道上に投入された後、図３−ａに示される
「折畳み状態」から図３−ｂに示される「展開状態」に
移る。そして、アンテナの支持枠 1が充分展開した後、
人工衛星20を図３−ｃに示すように回転させる。この回
転の遠心力によって収縮性材 2ａが膨らむ。収縮性材 2
ａには、印加される遠心力によって所望の鏡面形状にな
るように収縮率の分布が設けられてあるので、この動作
により所望の形状のアンテナ鏡面 2が形成される。ま
た、上記アンテナ鏡面形成の間にアンテナ鏡面の電波非
送受面に塗布された樹脂は、紫外線等の宇宙環境に曝ら
されることによって硬化し、遠心力によって形成された
所望の鏡面形状を維持する（図３−ｄ）。Next, a process from storage to deployment of the satellite-mounted antenna 10 of one embodiment will be described with reference to FIG. 2 and FIGS. This antenna is folded and mounted on the satellite 20 as illustrated in FIG. At this time, an example of the ultraviolet curable resin applied to the radio wave non-transmitting / receiving surface of the antenna mirror surface 2 has not been cured yet. Next, the antenna moves from the "folded state" shown in FIG. 3-a to the "deployed state" shown in FIG. 3-b after the artificial satellite is put into orbit. Then, after the antenna support frame 1 is fully deployed,
The satellite 20 is rotated as shown in FIG. The contractile material 2a expands due to the centrifugal force of this rotation. Shrinkable material 2
Since a is provided with a distribution of the shrinkage ratio so that a desired mirror surface shape is obtained by the applied centrifugal force, the antenna mirror surface 2 having a desired shape is formed by this operation. In addition, the resin applied to the radio wave non-transmitting / receiving surface of the antenna mirror surface during the formation of the antenna mirror surface is cured by being exposed to a space environment such as ultraviolet rays, and maintains a desired mirror surface shape formed by centrifugal force. (FIG. 3-d).
【００１３】上記展開アンテナは、例えばそのアンテナ
部がモリブデンメッシュでなりこれに紫外線硬化樹脂の
一例のＫＦＲＰ（ケブラーファイバレインフォーストプ
ラスティック）のコーティングが施される。また、補強
部材にはＣＦＲＰ（カーボンファイバレインフォースト
プラスティック）が用いられる。The deployable antenna has, for example, a molybdenum mesh in the antenna portion, and is coated with KFRP (Kevlar Fiber Reinforced Plastic), which is an example of an ultraviolet curable resin. Further, CFRP (Carbon Fiber Reinforced Plastic) is used for the reinforcing member.
【００１４】叙上により、人工衛星搭載アンテナの軽量
化と、収納性の向上が図られる。According to the above description, it is possible to reduce the weight of the antenna mounted on the satellite and to improve the storability.
【００１５】[0015]
【発明の効果】本発明によれば、軽量化と、収納性向上
が顕著に達成できる。According to the present invention, it is possible to remarkably achieve a reduction in weight and an improvement in storability.
【図１】一実施例の人工衛星搭載アンテナを展開させた
状態の正面図、FIG. 1 is a front view of a state where an antenna mounted on a satellite according to an embodiment is deployed;
【図２】一実施例の人工衛星搭載アンテナを収納させた
状態の正面図、FIG. 2 is a front view showing a state where the satellite-mounted antenna according to the embodiment is housed;
【図３】ａ〜ｄは一実施例の人工衛星搭載アンテナの展
開シーケンス図。3A to 3D are development sequence diagrams of an antenna mounted on a satellite according to one embodiment.
1 …支持枠 2 …アンテナ鏡面 2ａ…収縮性材 2ｂ…電波遮蔽層 10…人工衛星搭載アンテナ 20 …人工衛星 1 ... support frame 2 ... antenna mirror surface 2a ... shrinkable material 2b ... radio wave shielding layer 10 ... artificial satellite mounted antenna 20 ... artificial satellite
Claims (4)
搭載アンテナ。1. An artificial satellite mounted antenna deployed with a resilient flexible material.
テナが復元力のある柔軟材で形成された支持枠と、前記
支持枠内に取着され部分的に異なる収縮率分布を備えか
つ前記遠心力により展張させることにより一方の主面が
所望の鏡面形状を構成する鏡面部材と、前記鏡面部材の
他方の主面に被着され宇宙環境において硬化する電波遮
蔽層を具備したことを特徴とする人工衛星搭載アンテ
ナ。2. An antenna mounted on a satellite to be expanded by centrifugal force, comprising: a support frame formed of a resilient flexible material; An artificial member comprising: a mirror member whose one main surface forms a desired mirror surface shape by being extended by a radio wave shielding layer which is attached to the other main surface of the mirror surface member and hardens in a space environment. Satellite mounted antenna.
とする請求項２記載の人工衛星搭載アンテナ。3. The artificial satellite mounted antenna according to claim 2, wherein the radio wave shielding layer is an insulating resin layer.
を特徴とする請求項２記載の人工衛星搭載アンテナ。4. The satellite-mounted antenna according to claim 2, wherein the mirror member is made of a contractible mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35496197A JPH11186840A (en) | 1997-12-24 | 1997-12-24 | Satellite mounted antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35496197A JPH11186840A (en) | 1997-12-24 | 1997-12-24 | Satellite mounted antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11186840A true JPH11186840A (en) | 1999-07-09 |
Family
ID=18441058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35496197A Pending JPH11186840A (en) | 1997-12-24 | 1997-12-24 | Satellite mounted antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11186840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002036429A1 (en) * | 2000-11-06 | 2002-05-10 | Sakase Adtech Co., Ltd. | Inflatable structure, array antenna having inflatable structure, and inflatable structure unfolding method |
-
1997
- 1997-12-24 JP JP35496197A patent/JPH11186840A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002036429A1 (en) * | 2000-11-06 | 2002-05-10 | Sakase Adtech Co., Ltd. | Inflatable structure, array antenna having inflatable structure, and inflatable structure unfolding method |
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