JPS6451302U - - Google Patents
Info
- Publication number
- JPS6451302U JPS6451302U JP14540787U JP14540787U JPS6451302U JP S6451302 U JPS6451302 U JP S6451302U JP 14540787 U JP14540787 U JP 14540787U JP 14540787 U JP14540787 U JP 14540787U JP S6451302 U JPS6451302 U JP S6451302U
- Authority
- JP
- Japan
- Prior art keywords
- waveguide
- pair
- rectangular
- circular waveguide
- radio waves
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 1
Description
第１図は本考案によるアンテナの回転軸構造の
一実施例を示し、レーダアンテナの概略構造を示
す図、第２図は他の実施例によるレーダアンテナ
の概略構造を示す図、第３図は従来のレーダアン
テナの概略構造を示す図、第４図は従来の別のレ
ーダアンテナの概略構造を示す図、第５図は第４
図のレーダアンテナに用いられるモードフイルタ
の一例についての平面図である。
１１……固定部、１２……回転部、１３……ア
ンテナ部、１５，２７……方形導波管、１７，２
５……同軸部、２０……変換部、２２……円形導
波管。
FIG. 1 shows an embodiment of the rotary shaft structure of an antenna according to the present invention, a diagram showing a schematic structure of a radar antenna, FIG. 2 a diagram showing a schematic structure of a radar antenna according to another embodiment, and FIG. 3 shows a schematic structure of a radar antenna according to another embodiment. A diagram showing the schematic structure of a conventional radar antenna, FIG. 4 is a diagram showing the schematic structure of another conventional radar antenna, and FIG.
FIG. 3 is a plan view of an example of a mode filter used in the radar antenna shown in the figure. 11... Fixed part, 12... Rotating part, 13... Antenna part, 15, 27... Rectangular waveguide, 17, 2
5... Coaxial section, 20... Conversion section, 22... Circular waveguide.
Claims (1)
して回転自在に支持されるアンテナ部１３の各々
に設けられた一対の方形導波管１５，２７と、 円形導波管２２を有し、前記一対の方形導波管
１５，２７間に回転自在に設けられた回転部１２
と、 少くとも1/4波長以上の電気長を有し、互いに
前記円形導波管２２の内方向に向けて設けられ、
前記一方の方形導波管より伝送される電波を前記
円形導波管２２を介して他方の方形導波管に導く
一対の同軸部１７，２５と、 前記一対の同軸部１７，２５に対応して設けら
れ、前記一対の方形導波管１５，２７より伝送さ
れる電波を前記同軸部１７，２５を介して徐々に
モード変換して前記円形導波管２２に導く変換部
２０とを備えたことを特徴とするアンテナの回転
軸構造。[Claims for Utility Model Registration] A pair of rectangular waveguides 15 and 27 provided in each of the fixed part 11 forming a base and the antenna part 13 rotatably supported with respect to the fixed part 11; a rotating section 12 having a waveguide 22 and rotatably provided between the pair of rectangular waveguides 15 and 27;
and have an electrical length of at least 1/4 wavelength or more, and are provided toward each other inward of the circular waveguide 22,
a pair of coaxial parts 17, 25 that guide the radio waves transmitted from the one rectangular waveguide to the other rectangular waveguide via the circular waveguide 22; and a converting section 20 that gradually converts the mode of the radio waves transmitted from the pair of rectangular waveguides 15 and 27 through the coaxial sections 17 and 25 and guides them to the circular waveguide 22. A rotating shaft structure of an antenna characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14540787U JPH0619202Y2 (en) | 1987-09-25 | 1987-09-25 | Rotating axis structure of antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14540787U JPH0619202Y2 (en) | 1987-09-25 | 1987-09-25 | Rotating axis structure of antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6451302U true JPS6451302U (en) | 1989-03-30 |
| JPH0619202Y2 JPH0619202Y2 (en) | 1994-05-18 |
Family
ID=31413967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14540787U Expired - Lifetime JPH0619202Y2 (en) | 1987-09-25 | 1987-09-25 | Rotating axis structure of antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619202Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021215160A1 (en) * | 2020-04-20 | 2021-10-28 | 古野電気株式会社 | Multimode waveguide connector and waveguide |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006080130A1 (en) * | 2005-01-31 | 2006-08-03 | Murata Manufacturing Co., Ltd. | Waveguide horn antenna, antenna device, and radar device |
-
1987
- 1987-09-25 JP JP14540787U patent/JPH0619202Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021215160A1 (en) * | 2020-04-20 | 2021-10-28 | 古野電気株式会社 | Multimode waveguide connector and waveguide |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619202Y2 (en) | 1994-05-18 |
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