JPS6341911U - - Google Patents
Info
- Publication number
- JPS6341911U JPS6341911U JP13716086U JP13716086U JPS6341911U JP S6341911 U JPS6341911 U JP S6341911U JP 13716086 U JP13716086 U JP 13716086U JP 13716086 U JP13716086 U JP 13716086U JP S6341911 U JPS6341911 U JP S6341911U
- Authority
- JP
- Japan
- Prior art keywords
- reflector
- antenna device
- primary radiator
- sub
- double
- 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
- 239000006096 absorbing agent Substances 0.000 claims 2
- 239000012212 insulator Substances 0.000 claims 2
- 230000005855 radiation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Aerials With Secondary Devices (AREA)
Description
第１図はこの考案の一実施例によるアンテナ装
置を示す断面側面図、第２図はこの考案の他の実
施例による副反射鏡の正面図、第３図は第６図の
アンテナにおける二次放射パターン、第４図は他
の実施例を示す副反射鏡の正面図、第５図はグレ
ゴリアンアンテナでの実施例を示す断面図、第６
図はオフセツトカセグレンアンテナでの実施例を
示す断面図、第７図は一次放射器として集束反射
鏡とホーンからなる一次放射器を用いたアンテナ
での実施例を示す断面図、第８図は従来のアンテ
ナ装置を示す断面側面図、第９図は副反射鏡に吹
付ける放射パターンの特性図、第１０図は主反射
鏡開口面上の特性図、第１１図はそれぞれの場合
の二次放射パターンのビーム半値幅を示す説明図
である。
図において、１は主反射鏡、２は副反射鏡、３
はホーン、４はカバー、５は駆動装置、６は副反
射鏡への吹付けパターン、７は開口面上の振幅分
布、８は二次放射パターン、９は集束反射鏡であ
る。なお、図中、同一符号は同一又は相当部分を
示す。
FIG. 1 is a cross-sectional side view showing an antenna device according to one embodiment of this invention, FIG. 2 is a front view of a sub-reflector according to another embodiment of this invention, and FIG. 3 is a secondary Radiation pattern, Fig. 4 is a front view of the sub-reflector showing another embodiment, Fig. 5 is a sectional view showing an embodiment with a Gregorian antenna, Fig. 6
The figure is a cross-sectional view showing an example of an offset Cassegrain antenna, Figure 7 is a cross-sectional view showing an example of an antenna using a primary radiator consisting of a focusing reflector and a horn as the primary radiator, and Figure 8 is a cross-sectional view showing an example of an antenna using a primary radiator consisting of a focusing reflector and a horn. A cross-sectional side view showing a conventional antenna device, Fig. 9 is a characteristic diagram of the radiation pattern sprayed on the sub-reflector, Fig. 10 is a characteristic diagram on the aperture of the main reflector, and Fig. 11 is the secondary radiation pattern in each case. FIG. 3 is an explanatory diagram showing a beam half width of a radiation pattern. In the figure, 1 is the main reflecting mirror, 2 is the sub-reflecting mirror, and 3 is the main reflecting mirror.
4 is a horn, 4 is a cover, 5 is a driving device, 6 is a spray pattern on a sub-reflector, 7 is an amplitude distribution on an aperture surface, 8 is a secondary radiation pattern, and 9 is a focusing reflector. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
構成される複反射鏡アンテナ装置において、上記
副反射鏡鏡面の外周部に、着脱可能な電波吸収体
もしくは、絶縁体カバーを備えたことを特徴とす
る複反射鏡アンテナ装置。 (2) 任意な形状を有し、着脱可能な電波吸収体
もしくは絶縁体のカバーを、少なくとも２個以上
備え、副反射鏡鏡面に配置したことを特徴とする
実用新案請求の範囲第１項記載の複反射鏡アンテ
ナ装置。 (3) 一次放射器を少なくとも１枚以上の集束反
射鏡とホーンからなる集束ビーム給電形一次放射
器系としたことを特徴とする実用新案請求の範囲
第１項または第２項に記載の複反射鏡アンテナ装
置。[Claims for Utility Model Registration] (1) In a double-reflector antenna device consisting of a main reflector, a sub-reflector, and a primary radiator, a removable radio wave absorber or , a double-reflector antenna device comprising an insulator cover. (2) A utility model described in claim 1, characterized in that at least two detachable radio wave absorber or insulator covers, each having an arbitrary shape, are arranged on the mirror surface of the sub-reflector. double reflector antenna device. (3) A utility model as claimed in claim 1 or 2, characterized in that the primary radiator is a focused beam-fed primary radiator system consisting of at least one focusing reflector and a horn. Reflector antenna device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13716086U JPS6341911U (en) | 1986-09-05 | 1986-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13716086U JPS6341911U (en) | 1986-09-05 | 1986-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6341911U true JPS6341911U (en) | 1988-03-19 |
Family
ID=31040953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13716086U Pending JPS6341911U (en) | 1986-09-05 | 1986-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6341911U (en) |
-
1986
- 1986-09-05 JP JP13716086U patent/JPS6341911U/ja active Pending
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