JPS60184308U

JPS60184308U - horn antenna

Info

Publication number: JPS60184308U
Application number: JP7213284U
Authority: JP
Inventors: 淳斎藤; 晋啓折目
Original assignee: 三菱電機株式会社
Priority date: 1984-05-17
Filing date: 1984-05-17
Publication date: 1985-12-06

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、従来のホーンアンテナの構造を説明する為の
図であり、同図ａは全体の外形図、同図、ｂは断面図、
同図Ｃはスロットアンテナを説明するための図、第２図
は従来の主アンテナ１０と副アンテナ１１の組み合せ方
法の例を示すものであり、同図ａは上下方向に組み合せ
た場合の例を示す図、同図すは後ろ向きに組み合せた場
合の例を示す図、第３図は本考案の一実施例を示す図で
あり、同図ａは全体構成を説明する為の図、同図すは断
面図、Ｃはプリント化アンテナを説明する為の図、第４
図は、副アンテナを構成するダイポールアンテナの配列
を説明するための図であり、同図ａは等間隔の場合を示
す図、同図すはランダムに配列した場合の図である。図において、１はスロット、２はスロットアンテナ、３
はグレーティングフィルタ、４は導体壁、５はレドーム
、６は側板、７はダイポール、８は給電線路、９は給電
回路、１０は主アンテナ、１１は副アンテナ、１２は反
射板、ｄ、ｄｌ。鳴、ｄ３は素子間隔、θはグレーティングローブが発生
する方向の角度である。なお図中、同一符号は同一また
は相当部分を示すものである。０．−丈／。Ｖ・・・ロロロ　ｇ　−FIG. 1 is a diagram for explaining the structure of a conventional horn antenna.
Figure C is a diagram for explaining the slot antenna, Figure 2 shows an example of a conventional method of combining the main antenna 10 and the sub-antenna 11, and Figure A shows an example of a combination in the vertical direction. Figure 3 is a diagram showing an embodiment of the present invention, and Figure a is a diagram for explaining the overall configuration. is a cross-sectional view, C is a diagram for explaining the printed antenna, 4th
The figures are diagrams for explaining the arrangement of the dipole antennas constituting the sub-antenna, where a shows a case where the dipole antennas are arranged at equal intervals, and a shows a case where the dipole antennas are arranged randomly. In the figure, 1 is a slot, 2 is a slot antenna, and 3 is a slot antenna.
4 is a grating filter, 4 is a conductor wall, 5 is a radome, 6 is a side plate, 7 is a dipole, 8 is a feed line, 9 is a feed circuit, 10 is a main antenna, 11 is a sub antenna, 12 is a reflector, d, dl. d3 is the element spacing, and θ is the angle in the direction in which the grating lobe is generated. In the drawings, the same reference numerals indicate the same or corresponding parts. 0. -Length/. V... Rororo g -

Claims

[Scope of utility model registration request]

A slot antenna has multiple slots installed in the wall of a waveguide at intervals of approximately 1/2 of the wavelength in the tube, and multiple conductor rods are arranged perpendicularly to the length of the waveguide at predetermined intervals. Focusing on the grating filter and slot antenna,
A horn antenna consisting of a conductor wall that spreads in a fan shape in a plane perpendicular to the length direction of the slot antenna and a radome attached to the antenna opening, in which a plurality of horn antennas are used at a frequency lower than the operating frequency of the horn antenna. Another antenna consisting of radiating elements is provided as a printed antenna on the inner surface of the radome with random spacing between the radiating elements, and the grating filter is used as a reflector. Features a horn antenna.