JPH0559929U - Parabolic antenna device - Google Patents
Parabolic antenna deviceInfo
- Publication number
- JPH0559929U JPH0559929U JP537292U JP537292U JPH0559929U JP H0559929 U JPH0559929 U JP H0559929U JP 537292 U JP537292 U JP 537292U JP 537292 U JP537292 U JP 537292U JP H0559929 U JPH0559929 U JP H0559929U
- Authority
- JP
- Japan
- Prior art keywords
- reflecting mirror
- antenna device
- parabolic antenna
- parabolic
- integrally formed
- 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.)
- Withdrawn
Links
Abstract
(57)【要約】
【目的】 反射鏡の重量を増大させることなく反射鏡の
強度を確保し、軽量で大口径の反射鏡を持つパラボラア
ンテナ装置を得る。
【構成】 反射鏡１の焦点近傍に一次放射器としてのバ
ックファイヤー・ヘリカルアンテナ２を配置するととも
に、前記反射鏡の中心軸を通る給電線路を前記バックフ
ァイヤー・ヘリカルアンテナ２に接続するとともに、前
記反射鏡１の周縁部に２重以上の補強用フランジ部１２
Ａ，１２Ｂを一体に形成した構成である。
(57) [Abstract] [Purpose] To obtain a parabolic antenna device having a large-diameter reflecting mirror which secures the strength of the reflecting mirror without increasing the weight of the reflecting mirror. A backfire helical antenna 2 as a primary radiator is arranged near the focal point of a reflecting mirror 1, and a feed line passing through the central axis of the reflecting mirror is connected to the backfire helical antenna 2 and Double or more reinforcing flanges 12 are provided on the periphery of the reflecting mirror 1.
This is a configuration in which A and 12B are integrally formed.
Description
【０００１】[0001]
本考案は、衛星放送の受信等のマイクロ波通信に使用されるパラボラアンテナ 装置の構造の改良に関する。 The present invention relates to improvement of the structure of a parabolic antenna device used for microwave communication such as reception of satellite broadcasting.
【０００２】[0002]
従来、本出願人より実開昭６２−８９８２５号において、ＳＨＦ用パラボラア ンテナ装置の一次放射器としてバックファイヤー・ヘリカルアンテナを使用して 放物面反射鏡の焦点近傍に配置し、このバックファイヤー・ヘリカルアンテナの 反射鏡側の給電点に同軸ケーブル(例えばセミリジッドケーブルやリジッドケー ブル等)を接続した装置が提案されている。 Conventionally, the applicant of the present invention, in Japanese Utility Model Publication No. 62-89825, uses a backfire helical antenna as the primary radiator of a parabolic antenna device for SHF, and arranges it near the focal point of a parabolic reflector. A device has been proposed in which a coaxial cable (for example, a semi-rigid cable or a rigid cable) is connected to the feeding point on the reflector side of the helical antenna.
【０００３】[0003]
ところで、実開昭６２−８９８２５号の如く、放物面反射鏡に格別の工夫が無 い場合、アンテナ利得を高くするために放物面反射鏡の口径を大きくしようとす ると、放物面反射鏡の強度が不足する嫌いがあり、また強度不足を解消するため に反射鏡の肉厚を増大させると重量が相当重くなる不都合があった。 By the way, if there is no special device for the parabolic reflector like Japanese Utility Model Laid-Open No. 62-89825, if you try to increase the aperture of the parabolic reflector in order to increase the antenna gain, you will get a parabola. There is a dislike that the strength of the surface reflecting mirror is insufficient, and if the wall thickness of the reflecting mirror is increased in order to solve the lack of strength, the weight becomes considerably heavy.
【０００４】 本考案は、上記の点に鑑み、反射鏡の重量を増大させることなく反射鏡の強度 を確保し、軽量で大口径の反射鏡を持つパラボラアンテナ装置を提供することを 目的とする。In view of the above points, an object of the present invention is to provide a parabolic antenna device that secures the strength of the reflecting mirror without increasing the weight of the reflecting mirror and has a lightweight and large-diameter reflecting mirror. ..
【０００５】[0005]
上記目的を達成するために、本考案のパラボラアンテナ装置は、反射鏡の焦点 近傍に一次放射器を配置するとともに、前記反射鏡の中心軸を通る給電線路を前 記一次放射器に接続してなる構造を持ち、前記反射鏡の周縁部に２重以上の補強 用フランジ部を一体に形成した構成としている。 In order to achieve the above object, in the parabolic antenna device of the present invention, a primary radiator is arranged in the vicinity of the focal point of the reflector, and a feed line passing through the central axis of the reflector is connected to the primary radiator. With the above structure, a reinforcing flange portion having two or more layers is integrally formed on the peripheral portion of the reflecting mirror.
【０００６】[0006]
本考案のパラボラアンテナ装置は、反射鏡の周縁部に２重以上の補強用フラン ジ部を一体に形成しており、該反射鏡を金属箔と樹脂とで一体成形するような場 合でも、樹脂の肉厚を薄くし、軽量化を図り得る。 In the parabolic antenna device of the present invention, a reinforcing flange portion having two or more layers is integrally formed on the peripheral portion of the reflecting mirror, and even when the reflecting mirror is integrally formed of metal foil and resin, The thickness of the resin can be reduced to reduce the weight.
【０００７】[0007]
以下、本考案に係るパラボラアンテナ装置の実施例を図面に従って説明する。 Embodiments of a parabolic antenna device according to the present invention will be described below with reference to the drawings.
【０００８】 図１及び図２において、１は放物面反射鏡、２は一次放射器としてのバックフ ァイヤー・ヘリカルアンテナであり、該バックファイヤー・ヘリカルアンテナの 反射鏡側の給電点に同軸ケーブル（例えばセミリジッドケーブルやリジッドケー ブル等）３が接続され、該同軸ケーブル３は反射鏡１の中心軸を通って当該反射 鏡の背面側に引き出され、そして、反射鏡１の背面側に固定されたＢＳコンバー タ４に接続されるようになっている。なお、バックファイヤー・ヘリカルアンテ ナ２は反射鏡１の焦点近傍に位置するごとく、同軸ケーブル３の外側を囲む筒状 のステイ５及びその先端に連結されてバックファイヤー・ヘリカルアンテナ２の 周囲を覆うフィドーム６によって支持されている。ステイ５の外表面は導電性を 有していて電波を反射する特性であることが好ましく、フィドーム６は低誘電率 の樹脂等で構成される。In FIGS. 1 and 2, 1 is a parabolic reflector, 2 is a backfire helical antenna as a primary radiator, and a coaxial cable ( For example, a semi-rigid cable or a rigid cable) 3 is connected, the coaxial cable 3 is pulled out to the rear side of the reflecting mirror 1 through the central axis of the reflecting mirror 1, and is fixed to the rear side of the reflecting mirror 1. It is designed to be connected to the converter 4. As the backfire / helical antenna 2 is located near the focal point of the reflecting mirror 1, the backfire / helical antenna 2 is connected to the cylindrical stay 5 surrounding the outside of the coaxial cable 3 and the tip thereof to cover the periphery of the backfire / helical antenna 2. It is supported by the fidome 6. The outer surface of the stay 5 is preferably conductive and has a characteristic of reflecting radio waves, and the fidome 6 is made of a resin or the like having a low dielectric constant.
【０００９】 前記放物面反射鏡１は、図２に示すごとく、樹脂１０の表面（反射側の面）に 金属箔（又は金属薄板）１１が貼り合わされるように一体成型したもので、反射 鏡周縁部分には円環状に周回した２重の補強用フランジ部１２Ａ，１２Ｂが一体 に成型されている。また、最外周のフランジ部１２Ｂ外周面には保護用のゴムモ ール１３が貼り付けられている。As shown in FIG. 2, the parabolic reflector 1 is integrally molded so that a metal foil (or a metal thin plate) 11 is attached to the surface of the resin 10 (the surface on the reflection side). Double reinforcing flanges 12A and 12B, which are annularly wound around the periphery of the mirror, are integrally formed. A protective rubber mold 13 is attached to the outer peripheral surface of the outermost flange portion 12B.
【００１０】 このような放物面反射鏡１の構造とすることにより、反射鏡口径が大きくとも ２重のフランジ部１２Ａ，１２Ｂを一体に形成したことで十分な機械的強度が得 られ、樹脂１０の肉厚を２重のフランジ部がない場合よりも大幅に薄くすること ができ、軽量化を図ることができる。With such a structure of the parabolic reflecting mirror 1, sufficient mechanical strength can be obtained by integrally forming the double flange portions 12A and 12B even if the reflecting mirror has a large aperture. The thickness of 10 can be made significantly thinner than that without the double flange portion, and the weight can be reduced.
【００１１】 なお、上記実施例では金属箔１１を樹脂１０の表面に一体成型で設けたが、樹 脂１０により放物面反射鏡の本体を成型後、その表面に金属膜をメッキ等で設け るようにしても差し支えない。また、上記実施例では放物面反射鏡の周縁部に２ 重のフランジ部を設けた場合を例示したが、３重以上のフランジ部を設けてもよ い。Although the metal foil 11 is integrally formed on the surface of the resin 10 in the above embodiment, the body of the parabolic reflector is molded by the resin 10 and then a metal film is formed on the surface by plating or the like. There is no problem in doing so. Further, in the above embodiment, the case where the double flange portion is provided on the peripheral portion of the parabolic reflector is illustrated, but the triple or more flange portions may be provided.
【００１２】[0012]
以上説明したように、本考案のパラボラアンテナ装置によれば、反射鏡の周縁 部に２重以上の補強用フランジ部を一体に形成したので、反射鏡の口径が大きい 場合でも十分な強度を確保でき、かつ反射鏡の肉厚を薄くすることにより軽量化 を図ることができる。 As described above, according to the parabolic antenna device of the present invention, since the reinforcing flange portion having two or more layers is integrally formed on the peripheral portion of the reflecting mirror, sufficient strength is secured even when the diameter of the reflecting mirror is large. In addition, it is possible to reduce the weight by reducing the thickness of the reflecting mirror.
【図１】本考案に係るパラボラアンテナ装置の実施例を
示す側断面図である。FIG. 1 is a side sectional view showing an embodiment of a parabolic antenna device according to the present invention.
【図２】実施例の要部拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a main part of the embodiment.
１ 放物面反射鏡 ２ バックファイヤー・ヘリカルアンテナ ３ 同軸ケーブル ４ ＢＳコンバータ １０ 樹脂 １１ 金属箔 １２Ａ，１２Ｂ 補強用フランジ部 1 Parabolic reflector 2 Backfire / helical antenna 3 Coaxial cable 4 BS converter 10 Resin 11 Metal foil 12A, 12B Reinforcing flange
Claims (1)
るとともに、前記反射鏡の中心軸を通る給電線路を前記
一次放射器に接続してなるパラボラアンテナ装置におい
て、前記反射鏡の周縁部に２重以上の補強用フランジ部
を一体に形成したことを特徴とするパラボラアンテナ装
置。1. A parabolic antenna device in which a primary radiator is arranged in the vicinity of the focal point of the reflecting mirror, and a feed line passing through the central axis of the reflecting mirror is connected to the primary radiator. A parabolic antenna device, characterized in that a reinforcing flange portion having two or more layers is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP537292U JPH0559929U (en) | 1992-01-17 | 1992-01-17 | Parabolic antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP537292U JPH0559929U (en) | 1992-01-17 | 1992-01-17 | Parabolic antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0559929U true JPH0559929U (en) | 1993-08-06 |
Family
ID=11609342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP537292U Withdrawn JPH0559929U (en) | 1992-01-17 | 1992-01-17 | Parabolic antenna device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0559929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003071701A1 (en) * | 2002-02-22 | 2003-08-28 | Sharp Kabushiki Kaisha | Radio communication system |
-
1992
- 1992-01-17 JP JP537292U patent/JPH0559929U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003071701A1 (en) * | 2002-02-22 | 2003-08-28 | Sharp Kabushiki Kaisha | Radio communication system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19960404 |