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Antenna and radar device

A technology of antenna device and antenna part, which is applied in the direction of antenna grounding device, antenna, measuring device, etc., and can solve problems such as difficulty in radiating electromagnetic waves

Inactive Publication Date: 2014-03-12
FURUNO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it is difficult to radiate electromagnetic waves with the original design characteristics

Method used

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  • Antenna and radar device
  • Antenna and radar device
  • Antenna and radar device

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0045] A first embodiment of the antenna and radar device of the present invention will be described.

[0046] Although the antenna device 1 of the present invention is used, for example, in marine radars, its application is not limited to ships, and can be widely applied.

[0047] Such as figure 1 As shown, the antenna device 1 is composed of a horn-shaped component (horn) 3, an antenna substrate (antenna part) 2 and a feed tube 4. The horn-shaped component 3 has an opening, and the antenna substrate (antenna part) 2 is arranged on the horn-shaped Rear of part 3. Let the opening direction of the horn-shaped part 3 be the z-axis direction (or the front direction), set the direction vertically upward relative to the surface direction as the x-axis direction, and set the direction perpendicular to the z-axis and the x-axis as the y-axis direction .

[0048] Such as figure 2 As shown in FIG. 3 , the antenna substrate 2 is composed of a dielectric substrate 20 , eight dipole ...

no. 2 approach

[0100] Next, a second embodiment of the present invention will be described. Components having the same configuration as those of the first embodiment are assigned the same reference numerals, and description thereof will be appropriately omitted here.

[0101] The antenna device 101 of this embodiment is different from the first embodiment in the configuration of the shielding portion, and the other configurations are the same as those of the first embodiment. Such as Figure 7 As shown, the shield portion 133 of this embodiment is composed of an upper plate 134 , a lower plate 135 , and two side plates 138 , 139 . The side plate 138 connects the positive y-axis end portions of the upper plate 134 and the lower plate 135 to each other. The side plate 139 connects the y-axis negative end portions of the upper plate 134 and the lower plate 135 to each other.

[0102] Preferably, the gap D between the upper plate 134 and the antenna substrate 2 is, for example, 1 / 10 to 1 / 3 of...

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PUM

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Abstract

This disclosure provides an antenna device that includes a horn having a deeper-side portion and an opening-side portion, a feeder line, and an antenna element that is supplied with electric power from the feeder line to generate an electric wave, and radiates the electric wave from the horn. The feeder line is arranged parallel to the radiating direction of the electric wave.

Description

technical field [0001] The invention relates to antennas and radar devices. Background technique [0002] Hitherto, for example, a patch antenna (microstrip line antenna) device has been widely used as an antenna device for radar and the like (for example, refer to Patent Document 1: Japanese Patent Application Laid-Open No. 5-206729). [0003] The patch antenna device is composed of a dielectric substrate, a patch, a ground wire and a feeder line, the patch is composed of a thin film conductor formed on one side of the dielectric substrate, the ground wire is formed on the other side of the dielectric substrate, The feeding line is composed of a thin film conductor formed on the above-mentioned one surface of the dielectric substrate and connected to one end of the patch. In such a patch antenna device, when power is supplied to the patch through the feeder line, electromagnetic waves are radiated from the patch in a direction perpendicular to the substrate. [0004] Howe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q19/10H01Q1/48G01S13/02
CPCH01Q9/285H01Q13/02H01Q1/34H01Q1/38H01Q9/16H01Q21/08
Inventor 肥野明大厚见浩史
Owner FURUNO ELECTRIC CO LTD