JPS6160513U

JPS6160513U -

Info

Publication number: JPS6160513U
Application number: JP14456684U
Authority: JP
Priority date: 1984-09-25
Filing date: 1984-09-25
Publication date: 1986-04-23

Description

[Brief explanation of the drawing]

第１図は本考案スロツト・アレイ・アンテナ装
置の実施例を示す斜視図、第２図は上記実施例に
おけるスロツト導波管とスペーサブロツクとグリ
ツドとを示す部分分解斜視図、第３図のよび第４
図は各々スペーサブロツクと定在波防止層とを示
す斜視図、第５図は従来のスロツト・アレイ・ア
ンテナ装置を示す斜視図、第６図は上記従来の装
置におけるスロツト導波管とグリツドとを組立て
た状態の断面図、第７図は上記従来例および実施
例に使用されるグリツドの一例を示す斜視図であ
る。１…スロツト導波管、２…保持部材、２ａ…溝
部、２ｂ…貫通孔、３…誘電体導波機構、３ａ，
３ｂ…誘電体板、４…反射板、４ａ…開口部、４
ｂ…反射部、４ｃ…取付部、５……スペーサブロ
ツク、６…グリツド、６ａ…スリツト、８…レー
ドーム、９…定在波防止層。 FIG. 1 is a perspective view showing an embodiment of the slot array antenna device of the present invention, FIG. 2 is a partially exploded perspective view showing the slot waveguide, spacer block, and grid in the above embodiment, and FIG. Fourth
Each figure is a perspective view showing a spacer block and a standing wave prevention layer, FIG. 5 is a perspective view showing a conventional slot array antenna device, and FIG. 6 is a perspective view showing the slot waveguide and grid in the conventional device. FIG. 7 is a perspective view showing an example of the grid used in the conventional example and the embodiment described above. DESCRIPTION OF SYMBOLS 1... Slot waveguide, 2... Holding member, 2a... Groove, 2b... Through hole, 3... Dielectric waveguide mechanism, 3a,
3b...dielectric plate, 4...reflection plate, 4a...opening, 4
b...Reflection part, 4c...Mounting part, 5...Spacer block, 6...Grid, 6a...Slit, 8...Radome, 9...Standing wave prevention layer.

Claims

[Claims for Utility Model Registration] A slotted waveguide comprising a slotted waveguide provided with a group of slots on the front end face, and a holding member that fixes and supports the waveguide from the rear side along the longitudinal direction, and A pair of dielectric plates whose thickness is sufficiently thin compared to the wavelength used is protruded in front of the tube, sandwiching the space in front of the tube, and a base of the dielectric plate is provided on the outside of the integrated dielectric plate. A reflecting plate is provided to reflect electromagnetic waves transmitted through the vicinity and emitted, and a grid having a U-shaped cross section with a large number of slits in the web is arranged between the pair of dielectric plates. A slot array installed over the front end of the wave tube.
In the antenna device, spacer blocks are installed at both ends of the space surrounded by the holding member, the slotted waveguide, and the grid to hold the front end surface of the waveguide and the slit surface of the grid at a predetermined distance. The grid is fitted onto the holding member through the block and fixed thereto, and a spacer block is attached to the opposing surface of at least one of the spacer blocks attached to both ends of the slotted waveguide. A slot array antenna device comprising a standing wave prevention layer that prevents the formation of standing waves by absorbing, diffusely reflecting, or reflecting incident polarized components in a direction different from the direction of the opposing surface.