Full-parallel-feed common-caliber dual-polarized waveguide slot filtering antenna array system

A waveguide slot and filter antenna technology, applied in slot antennas, antenna unit combinations with different polarization directions, antennas, etc., can solve problems affecting antenna performance, achieve easy amplitude distribution, be beneficial to engineering applications, and reduce antenna costs Effect
CN112382853AActive Publication Date: 2021-02-19SHANGHAI RADIO EQUIP RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI RADIO EQUIP RES INST
Publication Date
2021-02-19

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Abstract

The invention relates to a full-parallel-feed common-caliber dual-polarized waveguide slot filter antenna array system, which is formed by symmetrically arranging four 1 / 4 antenna array planes througha sum-difference feed network, and each 1 / 4 antenna array plane is cascaded with a linear frequency-variable coupling filter; each 1 / 4 antenna array surface comprises a power division waveguide layerand a plurality of sub-array antenna units arranged above the power division waveguide layer; each sub-array antenna unit comprises dual-polarized radiation antenna units which are arranged accordingto a 2 * 2 structure; each dual-polarization radiation antenna unit comprises a dual-polarization cross-shaped slot unit radiation layer, a four-ridge transmission waveguide layer, a dual-polarization coupling slot layer, a vertical polarization feed network layer, a horizontal polarization coupling slot layer and a horizontal polarization feed network layer which are sequentially arranged from top to bottom. According to the invention, linear polarization radiation in two directions can be realized, interference signals outside the working bandwidth can be effectively suppressed, and the antenna has the advantages of broadband, high gain, low sidelobe, low cross polarization and high integration level.
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Description

Technical field

[0001] The invention relates to a dual-polarization waveguide slot antenna array system, in particular to a fully parallel-fed common-aperture dual-polarization waveguide slot filter antenna array system, belonging to the field of antenna design, and mainly used in seekers and wireless communication systems, etc. field.Background technique

[0002] As the current requirements for precision guidance continue to increase, higher requirements for detection capabilities are correspondingly put forward. In order to further improve the detection accuracy and anti-interference ability of the seeker, the microwave / millimeter wave detection system is required to have a variable polarization function. As an important part of the variable-polarization detection system, dual-polarization antennas are one of the research focuses, and are gaining more and more attention.

[0003] Compared with single-polarized antennas that can only receive and / or transmit signals or electromagnetic waves o...

Claims

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