JPS60184307U

JPS60184307U - horn antenna

Info

Publication number: JPS60184307U
Application number: JP7213184U
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、同図すは断面図、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、ｂは後ろ向きに組み合せた例を示す
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ための図であり、同図すは断面図
、第４図は、副アンテナ１１を構成するダイポールアン
テナ７の配列を説明する為の図であり、同図ａは等間隔
の場合を示し、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
射板である。またｄ、ｄｌ、ｄ２．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。・Figure 1 is a diagram for explaining the structure of a conventional horn antenna. Figure 2 shows an example of a conventional method of combining the main antenna 10 and the sub-antenna 11, in which figure a shows an example of the combination in the vertical direction, b shows an example of the combination in the backward direction, FIG. 3 is a diagram showing an embodiment of the present invention, and FIG.
4 is a diagram for explaining the overall configuration; FIG. The figure shows a case where the cells 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, and 12 is a reflection plate. Also d, dl, d2. d3 is the element spacing, 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.

Claims

[Scope of utility model registration request]

A slot antenna has multiple slots in the wall of a waveguide at intervals of approximately 1/2 of the wavelength in the tube, and a plurality of conductor rods are arranged perpendicularly to the length of the waveguide at predetermined intervals. A horn antenna consisting of a grating filter, a conductor wall that spreads out in a fan shape perpendicular to the length direction of the slot antenna around the slot antenna, and a radome attached to the antenna aperture, is used for the grating filter. A part of the conductor rod is used as a support, and the grating filter itself is used as a reflector to incorporate another antenna consisting of a plurality of radiating elements that is used at a frequency lower than that of the horn antenna, and then a sub-antenna. A horn antenna characterized in that the intervals between the radiating elements constituting the horn antenna are randomized.