JPS5827534Y2 - parabolic antenna - Google Patents
parabolic antennaInfo
- Publication number
- JPS5827534Y2 JPS5827534Y2 JP13207978U JP13207978U JPS5827534Y2 JP S5827534 Y2 JPS5827534 Y2 JP S5827534Y2 JP 13207978 U JP13207978 U JP 13207978U JP 13207978 U JP13207978 U JP 13207978U JP S5827534 Y2 JPS5827534 Y2 JP S5827534Y2
- Authority
- JP
- Japan
- Prior art keywords
- parabolic antenna
- radiator
- view
- waveguide
- opening
- 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.)
- Expired
Links
Landscapes
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
Description
【考案の詳細な説明】 本考案は導波管給電のパラボラ・アンテナに関する。[Detailed explanation of the idea] The present invention relates to a waveguide-fed parabolic antenna.
従来、導波管給電のパラボラ・アンテナの一次放射器と
して代表的なものは電磁ホーンを用いたものである。Conventionally, a typical primary radiator of a waveguide-fed parabolic antenna uses an electromagnetic horn.
まず、この電磁ホーンを用いたパラボラ・アンテナを図
面に基すいて説明する。First, a parabolic antenna using this electromagnetic horn will be explained based on the drawings.
第１図に示すように、−次放射器として電磁ホーンを用
いたもので、パラボラ反射鏡１、給電導波管２および一
次放射器３により構成されている。As shown in FIG. 1, an electromagnetic horn is used as the -order radiator, and it is composed of a parabolic reflector 1, a feeding waveguide 2, and a primary radiator 3.
−次放射器３は、電磁ホーンで給電導波管の開口から適
当な大きさの円形あるいは方形などの開口にテーパ状に
滑らかに変形されて製作されるが、機械加工上の複雑さ
があり、製作に大きな費用と工数を要するという欠点が
ある。- The secondary radiator 3 is manufactured by using an electromagnetic horn to smoothly taper the opening of the feeding waveguide into a circular or rectangular opening of an appropriate size, but the machining process is complicated. However, it has the disadvantage that it requires a large amount of cost and man-hours to manufacture.
第２図ａ、ｂは、矩形導波管開口ａＸｂから方形開ロＡ
ＸＢヘテーパ状に変形された従来例の電磁ホーンの平面
図および正面図である。Figure 2 a and b are from the rectangular waveguide opening aXb to the rectangular opening A.
FIG. 7 is a plan view and a front view of a conventional electromagnetic horn that is deformed into an XB tapered shape.
本考案は上述の欠点を解消したパラボラ・アンテナを提
供するものであり、以下本考案の実施例について図面に
基づいて説明する。The present invention provides a parabolic antenna that eliminates the above-mentioned drawbacks, and embodiments of the present invention will be described below with reference to the drawings.
第３図は、本考案の一実施例におけるパラボラ・アンテ
ナであり、パラボラ反射鏡４、給電導波管５および一次
放射器６で構成されている。FIG. 3 shows a parabolic antenna according to an embodiment of the present invention, which is composed of a parabolic reflector 4, a feeding waveguide 5, and a primary radiator 6.
第４図ａ、ｂ、ｃは、それぞれ−次放射器６の平面図、
正面図および側面図である。4a, b, and c are respectively plan views of the -order radiator 6;
They are a front view and a side view.
本実施例では矩形導波管間ロアから方形開口９へ階段状
に変形された一次放射器で８および９０部分は長さがそ
れぞれ約に波長で第４図の寸法Ｂ′およびＡ′は、−次
放射器としてのＶＳＷＲが所望の周波数帯域で十分小さ
くなるように定められる。In this embodiment, the primary radiator is transformed stepwise from the lower inter-rectangular waveguide to the rectangular opening 9, and the lengths of portions 8 and 90 are approximately wavelengths, and the dimensions B' and A' in FIG. 4 are as follows: - The VSWR as an order radiator is determined so as to be sufficiently small in a desired frequency band.
−次放射器としての開口ＢＸＡは、−次放射器としての
指向性との関係で最終的には実験的に定められる。The aperture BXA as the -order radiator is finally determined experimentally in relation to the directivity as the -order radiator.
以上のように本考案によれば一次放射器を製作するのに
、導波管のフランジ状の部分８および９を製作して連結
すればよく、従来例と比して製作上格段の容易さがあり
、低床でかつ一次放射器として開口面の大きさを自由に
交換可能という工業上価値大なるものである。As described above, according to the present invention, in order to manufacture the primary radiator, it is only necessary to manufacture and connect the flange-shaped parts 8 and 9 of the waveguide, which is much easier to manufacture than the conventional example. It has great industrial value because it has a low floor and the size of the aperture can be freely changed as a primary radiator.
第１図は従来例のパラボラ・アンテナの一部断側面図、
第２図ａ、ｂは、同アンテナの一次放射器の平面図、正
面図、第３図は本発明の一実施例におけるパラボラ・ア
ンテナの一部断側面図で、第４図ａ 、ｂ 、ｃは、そ
の−次放射器の平面図、正面図、側面図である。
４・・・・・・パラボラ反射鏡、５・・・・・・給電導
波管、６・・・・・・−次放射器、８，９・・・・・・
フランジ状部分。Figure 1 is a partially sectional side view of a conventional parabolic antenna.
FIGS. 2a and 2b are a plan view and a front view of the primary radiator of the antenna, FIG. 3 is a partially sectional side view of a parabolic antenna according to an embodiment of the present invention, and FIGS. 4a and 4b are c is a plan view, a front view, and a side view of the secondary radiator. 4... Parabolic reflector, 5... Feeding waveguide, 6...-order radiator, 8, 9...
flange-like part.
Claims (1)
管よりも広い開口を有する導波管を１つまたは複数個上
記給電導管の開口部に連結することにより階段状開口を
形成したパラボラ・アンテナ。A stepped opening is formed by connecting one or more waveguides having a length of the angler's wavelength as a primary radiator and having an opening wider than the feeding waveguide to the opening of the feeding conduit. parabolic antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13207978U JPS5827534Y2 (en) | 1978-09-25 | 1978-09-25 | parabolic antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13207978U JPS5827534Y2 (en) | 1978-09-25 | 1978-09-25 | parabolic antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5551043U JPS5551043U (en) | 1980-04-03 |
| JPS5827534Y2 true JPS5827534Y2 (en) | 1983-06-15 |
Family
ID=29099271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13207978U Expired JPS5827534Y2 (en) | 1978-09-25 | 1978-09-25 | parabolic antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5827534Y2 (en) |
-
1978
- 1978-09-25 JP JP13207978U patent/JPS5827534Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5551043U (en) | 1980-04-03 |
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