Low-profile wide-angle scanning waveguide slot array antenna

A waveguide slot, wide-angle scanning technology, applied in antennas, antenna arrays, waveguide openings, etc., can solve the problems of inability to realize the coplanar design of the carrier, the high profile of the servo system, and the limitation of wide application, and achieve high power capacity and low cost. , Overcome the effect of high cost
CN105470652AActive Publication Date: 2016-04-06BEIJING RES INST OF TELEMETRY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING RES INST OF TELEMETRY
Publication Date
2016-04-06

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Abstract

Disclosed in the invention is a low-profile wide-angle scanning waveguide slot array antenna. The antenna is characterized in that a waveguide slot array is used as an antenna radiation array plane; and the waveguide slot radiation array, a waveguide conversion segment, a waveguide array, a dual-parallel-plate waveguide transition segment, ad a dual-parallel-plate waveguide are welded into one to form a radiation system of the low-profile wide-angle scanning waveguide slot array antenna. A waveguide slot line array is used as a main antenna feed source body; and the waveguide slot line array, a coupling slot, and feed waveguide connecting segment are welded into one to form a feed source system of the antenna. The feed source system is embedded and inserted into the dual-parallel-plate waveguide to carry out feeding on the radiation system. The feed source system can rotate in a wide-angle domain rapidly in the dual-parallel-plate waveguide around a designed rotating shaft under the drive of a servo motor.
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Description

technical field

[0001] The invention belongs to the technical field of beam scanning antennas, in particular to a low-profile wide-angle scanning waveguide slot array antenna. Background technique

[0002] The waveguide slot array antenna has the advantages of low cost, high efficiency, and high power capacity, and can generate high-gain narrow beams in an extremely low profile. Under the existing level of precision processing, by changing the parameters such as the size, position and inclination angle of the antenna radiation slot, it is easy to control the amplitude and phase distribution of the radiation aperture, so as to achieve the low sidelobe characteristics of the radiation beam. Therefore, this type of antenna is widely used in various radar and communication systems.

[0003] However, since the direction of the radiation beam of the traditional waveguide slot array antenna is fixed, in order to meet the requirements of small-load SAR, vehicle-mounted and airborne...

Claims

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