Slot array antenna and radar device

An array antenna and slit technology, applied in the field of radar devices, can solve problems such as the reduction of sidelobe suppression effects
CN102394380AActive Publication Date: 2012-03-28FURUNO ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FURUNO ELECTRIC CO LTD
Publication Date
2012-03-28

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Abstract

This disclosure provides a slot array antenna, which includes an emission waveguide having a conductor surface where emission slot rows are formed and for guiding electromagnetic waves to be emitted from the emission slot rows, each of the emission slot rows having a plurality of emission slots are arrayed in line, and a lattice. The lattice includes a plurality of conductor walls formed in a planer shape so as to extend in a direction intersecting with the conductor surface and repeatedly arranged corresponding to the plurality of emission slots, and a base plate coupling and fixing the plurality of conductor walls thereto, the base plate being fastened to the conductor surface of the emission waveguide.
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Description

technical field

[0001] The present invention relates to a slot array antenna used in radar, communication equipment, broadcasting equipment, etc., and a radar device equipped with the slot array antenna. Background technique

[0002] A slot array antenna in which a plurality of slots that resonate with transmitting and receiving electromagnetic waves are arranged on the side of the waveguide generally has a characteristic of high side lobe level at low gain. A slot array antenna in which this characteristic is improved is disclosed in Patent Document 1 (International Publication No. 2008 / 018481 pamphlet).

[0003] Figure 18 (A) and Figure 18 (B) shows an example of the slot array antenna described in this patent document 1. Figure 18 (A) is a front view showing a configuration example of a slot array antenna according to Patent Document 1, Figure 18 (B) is a bottom view. exist Figure 18 (A) and Figure 18 (B) The circle marked with black dots in the xyz coordinates ind...

Claims

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