JPS62135209U - - Google Patents
Info
- Publication number
- JPS62135209U JPS62135209U JP2198086U JP2198086U JPS62135209U JP S62135209 U JPS62135209 U JP S62135209U JP 2198086 U JP2198086 U JP 2198086U JP 2198086 U JP2198086 U JP 2198086U JP S62135209 U JPS62135209 U JP S62135209U
- Authority
- JP
- Japan
- Prior art keywords
- reflecting mirror
- primary
- radio waves
- antenna device
- dual
- 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
- 230000009977 dual effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
第１図は本考案の一実施例に係る装置の斜視図
第２図はリフレクタアンテナの模式図、第３図は
ビーム幅と利得の関係を示す特性図、第４図はア
ンテナのトレース軌跡を説明するための模式図、
第５図はＤＢＳ用一次放射器の部分図である。
１……パラボラアンテナ、ＤＢＳ用一次放射器
、３……ＴＶＲＯ用一次放射器。
Fig. 1 is a perspective view of a device according to an embodiment of the present invention. Fig. 2 is a schematic diagram of a reflector antenna. Fig. 3 is a characteristic diagram showing the relationship between beam width and gain. Fig. 4 is a trace locus of the antenna. Schematic diagram for explanation,
FIG. 5 is a partial view of the primary radiator for DBS. 1... Parabolic antenna, primary radiator for DBS, 3... Primary radiator for TVRO.
Claims (1)
々が異なる周波数帯の電波を受信する２つの一次
放射器とを具備する２周波帯共用受信リフレクタ
アンテナ装置において、前記２つの一次放射器の
うちより高周波帯の電波を受信する一方の一次放
射器の指向性を鋭くすることにより、この一次放
射器に対する前記反射鏡の有効開口を実質的に減
じたことを特徴とする２周波帯共用受信リフレク
タアンテナ装置。 In a dual-frequency band common receiving reflector antenna device comprising a reflecting mirror and two primary radiators that are juxtaposed at the focal position of the reflecting mirror and receive radio waves of different frequency bands, one of the two primary radiators A reception reflector for dual frequency bands, characterized in that the effective aperture of the reflecting mirror with respect to the primary radiator is substantially reduced by sharpening the directivity of one primary radiator that receives radio waves in a higher frequency band. antenna device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2198086U JPS62135209U (en) | 1986-02-20 | 1986-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2198086U JPS62135209U (en) | 1986-02-20 | 1986-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62135209U true JPS62135209U (en) | 1987-08-26 |
Family
ID=30818924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2198086U Pending JPS62135209U (en) | 1986-02-20 | 1986-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62135209U (en) |
-
1986
- 1986-02-20 JP JP2198086U patent/JPS62135209U/ja active Pending
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