JPS60145719U

JPS60145719U - parabolic antenna

Info

Publication number: JPS60145719U
Application number: JP3284584U
Authority: JP
Inventors: 山後　純一; 仁鈴木
Original assignee: 日本電信電話株式会社; 三菱電機株式会社
Priority date: 1984-03-07
Filing date: 1984-03-07
Publication date: 1985-09-27

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のパラボラアンテナを示す構造概略図、第
２図は従来のパラボラアンテナの原理を説明する図、第
３図はこの考案の実施例を示すパラボラアンテナの概略
図、第４図はこの考案によるパラボラアンテナの効果を
説明する図、第５図はこの考案による反射板の実装を示
す図であり、１はパラ１′う反射鏡、２は一部ホーン、
３は偏波分離器、４は給電導波管Ａ、５は給電導波管Ｂ
１６は支持柱、７は反射板、８は電磁波を示す仮想線で
ある。なお図中、同一あるいは相当部分には同一符号を
付して示しである。Figure 1 is a structural schematic diagram showing a conventional parabolic antenna, Figure 2 is a diagram explaining the principle of a conventional parabolic antenna, Figure 3 is a schematic diagram of a parabolic antenna showing an embodiment of this invention, and Figure 4 is a diagram explaining the principle of a conventional parabolic antenna. FIG. 5 is a diagram illustrating the effect of the parabolic antenna according to this invention, and is a diagram showing the implementation of a reflector according to this invention, where 1 is a parabolic reflector, 2 is a partial horn,
3 is a polarization separator, 4 is a feeding waveguide A, and 5 is a feeding waveguide B.
16 is a support column, 7 is a reflection plate, and 8 is a virtual line indicating electromagnetic waves. In the drawings, the same or corresponding parts are designated by the same reference numerals.

Claims

[Scope of utility model registration request]

In a parabolic antenna consisting of a parabolic reflector and a primary radiator section having a feeding waveguide arranged parallel to or close to the aperture surface of the parabolic reflector,
A parabolic antenna characterized in that an electromagnetic wave reflecting plate having a thickness of 1/4 wavelength and a predetermined length is provided on a part of the surface of the feeding waveguide facing the parabolic reflecting mirror.