JPS63144715U - - Google Patents
Info
- Publication number
- JPS63144715U JPS63144715U JP3675387U JP3675387U JPS63144715U JP S63144715 U JPS63144715 U JP S63144715U JP 3675387 U JP3675387 U JP 3675387U JP 3675387 U JP3675387 U JP 3675387U JP S63144715 U JPS63144715 U JP S63144715U
- Authority
- JP
- Japan
- Prior art keywords
- radome
- reflector
- sub
- paraboloid
- antenna
- 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 description 2
- 230000006866 deterioration Effects 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
Landscapes
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
Description
第１図は、この考案の一実施例を示す断面図、
第２図はこの考案をパラボラアンテナに応用した
一実施例の断面図、第３図は従来のアンテナ装置
を示す断面図である。
図において１は１次放射器、２は副反射鏡、３
は主反射鏡、４はレドーム、５は電波吸収体であ
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 sectional view showing an embodiment of this invention;
FIG. 2 is a sectional view of an embodiment in which this invention is applied to a parabolic antenna, and FIG. 3 is a sectional view showing a conventional antenna device. In the figure, 1 is the primary radiator, 2 is the sub-reflector, and 3
is a main reflecting mirror, 4 is a radome, and 5 is a radio wave absorber. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
により構成されたカセグレンアンテナまたはグレ
ゴリアンアンテナ等のアンテナ装置において、レ
ドームの形状を放物面、又は放物面に近い形とし
、さらに副反射鏡の背面に電波吸収体を取り付け
、それによつてレドームの反射にもとづくアンテ
ナの放射特性を劣化させないようにしたことを特
徴とするアンテナ装置。 In antenna devices such as Cassegrain antennas or Gregorian antennas that are composed of a primary radiator, a sub-reflector, a main reflector, a radome, etc., the shape of the radome is a paraboloid or a shape close to a paraboloid, and the sub-reflector is An antenna device characterized in that a radio wave absorber is attached to the back of a mirror, thereby preventing deterioration of the radiation characteristics of the antenna based on reflection from a radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3675387U JPS63144715U (en) | 1987-03-13 | 1987-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3675387U JPS63144715U (en) | 1987-03-13 | 1987-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63144715U true JPS63144715U (en) | 1988-09-22 |
Family
ID=30847452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3675387U Pending JPS63144715U (en) | 1987-03-13 | 1987-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63144715U (en) |
-
1987
- 1987-03-13 JP JP3675387U patent/JPS63144715U/ja active Pending
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