JPH0298509U - - Google Patents
Info
- Publication number
- JPH0298509U JPH0298509U JP7680488U JP7680488U JPH0298509U JP H0298509 U JPH0298509 U JP H0298509U JP 7680488 U JP7680488 U JP 7680488U JP 7680488 U JP7680488 U JP 7680488U JP H0298509 U JPH0298509 U JP H0298509U
- Authority
- JP
- Japan
- Prior art keywords
- reflecting portion
- antenna device
- radiator
- supplying
- expandable
- 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
- 238000007599 discharging Methods 0.000 claims 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 2
Landscapes
- Aerials With Secondary Devices (AREA)
Description
第1,2図は本考案の第1実施例としての拡縮
型アンテナ装置を示すもので、第1図はそのパラ
ボラ面拡張状態を示す斜視図、第2図はその折り
たたみ状態を示す斜視図であり、第3図は本考案
の第2実施例としての拡縮型アンテナ装置を示す
斜視図であり、第4図は本考案の第3実施例とし
ての拡縮型アンテナ装置を示す斜視図であり、第
5図は本考案の第4実施例としての拡縮型アンテ
ナ装置を示す斜視図であり、第6図は本考案の第
5実施例としての拡縮型アンテナ装置を示す斜視
図であり、第7図は従来のパラボラ型アンテナを
示す斜視図である。
1……中空部材、2……反射部、2′a……放
物面主反射鏡、2′b……楕円面副反射鏡、2′
c……双曲面副反射鏡、2a,2b……膜面、3
……放射器、4……ポール、4a……三脚、4b
……フレキシブルポール、5……コンバータ、6
……アーム、8……給電ケーブル、9……副反射
鏡固定部材、10……給排気口。
Figures 1 and 2 show an expandable and retractable antenna device as a first embodiment of the present invention. Figure 1 is a perspective view showing the parabolic expanded state, and Figure 2 is a perspective view showing the folded state. 3 is a perspective view showing an expandable antenna device as a second embodiment of the present invention, and FIG. 4 is a perspective view showing an expandable antenna device as a third embodiment of the present invention, FIG. 5 is a perspective view showing an expandable antenna device as a fourth embodiment of the present invention, FIG. 6 is a perspective view showing an expandable antenna device as a fifth embodiment of the present invention, and FIG. The figure is a perspective view showing a conventional parabolic antenna. DESCRIPTION OF SYMBOLS 1... Hollow member, 2... Reflection part, 2'a... Parabolic main reflecting mirror, 2'b... Ellipsoidal sub-reflecting mirror, 2'
c... Hyperboloid sub-reflector, 2a, 2b... Film surface, 3
...Radiator, 4...Pole, 4a...Tripod, 4b
...Flexible pole, 5...Converter, 6
... Arm, 8 ... Power supply cable, 9 ... Sub-reflector fixing member, 10 ... Supply and exhaust port.
Claims (1)
部の焦点に置かれるべき放射器とをそなえ、上記
反射部が気体の供給排出により拡縮可能な中空部
材の膜面に設けられて、上記中空部材が、同部材
内への気体の供給により上記反射部をパラボラ面
状に拡げうるように形成されるとともに、上記反
射器が上記パラボラ面状の反射部の焦点に置かれ
るように配設され、さらに気体の供給排出を行な
う給排気口が設けられたことを特徴とする、拡縮
型アンテナ装置。 (2) 上記放射器を支持する架台をそなえ、同架
台が上記放射器の高さ、上下角および方位を調節
可能に形成されたことを特徴とする、請求項(1)
に記載の拡縮型アンテナ装置。[Claims for Utility Model Registration] (1) A hollow member comprising a reflecting portion that forms a parabolic surface and a radiator that is placed at the focal point of the reflecting portion, the reflecting portion being able to expand and contract by supplying and discharging gas. The hollow member is provided on the film surface of the member, and the hollow member is formed so that the reflecting portion can be expanded into a parabolic shape by supplying gas into the member, and the reflector is provided on the reflecting portion in the parabolic shape. 1. An expandable and retractable antenna device, characterized in that the antenna device is arranged so as to be placed at the focal point of the antenna, and is further provided with an air supply/exhaust port for supplying and discharging gas. (2) Claim (1) characterized by comprising a pedestal for supporting the radiator, and the pedestal is formed to be able to adjust the height, vertical angle, and direction of the radiator.
The expandable antenna device described in .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7680488U JPH0298509U (en) | 1988-06-09 | 1988-06-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7680488U JPH0298509U (en) | 1988-06-09 | 1988-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0298509U true JPH0298509U (en) | 1990-08-06 |
Family
ID=31301814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7680488U Pending JPH0298509U (en) | 1988-06-09 | 1988-06-09 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0298509U (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51139746A (en) * | 1975-05-28 | 1976-12-02 | Nippon Telegr & Teleph Corp <Ntt> | Balloon type double reflector antenna |
JPS5611507B2 (en) * | 1977-03-23 | 1981-03-14 | ||
JPS6193706A (en) * | 1984-10-13 | 1986-05-12 | Kuniharu Shimizu | Baloon parabolic antenna |
JPS6247202A (en) * | 1985-08-26 | 1987-02-28 | Furukawa Electric Co Ltd:The | Portable satellite broadcast receiving antenna |
JPS645510B2 (en) * | 1979-11-19 | 1989-01-31 | Tokyo Shibaura Electric Co | |
JPH01220902A (en) * | 1988-02-29 | 1989-09-04 | Hitachi Ltd | Structure of antenna |
-
1988
- 1988-06-09 JP JP7680488U patent/JPH0298509U/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51139746A (en) * | 1975-05-28 | 1976-12-02 | Nippon Telegr & Teleph Corp <Ntt> | Balloon type double reflector antenna |
JPS5611507B2 (en) * | 1977-03-23 | 1981-03-14 | ||
JPS645510B2 (en) * | 1979-11-19 | 1989-01-31 | Tokyo Shibaura Electric Co | |
JPS6193706A (en) * | 1984-10-13 | 1986-05-12 | Kuniharu Shimizu | Baloon parabolic antenna |
JPS6247202A (en) * | 1985-08-26 | 1987-02-28 | Furukawa Electric Co Ltd:The | Portable satellite broadcast receiving antenna |
JPH01220902A (en) * | 1988-02-29 | 1989-09-04 | Hitachi Ltd | Structure of antenna |
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