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

Active Publication Date: 2021-02-19
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology

Moreover, for multi-band multi-port antennas, the mutual coupling between ports will also affect the performance of the antenna

Method used

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

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Embodiment Construction

[0037]The following combinationFigure 1 ~ Figure 11b The technical content, structural features, objectives and effects of the present invention are described in detail through preferred embodiments.

[0038]Such asFigure 9a withFigure 9b As shown, a fully parallel-fed common-aperture dual-polarized waveguide slot filter antenna array system provided by the present invention is composed of four 1 / 4 antenna arrays through the sum and difference feed network combination to form a complete antenna array, of which, four The 1 / 4 antenna arrays are symmetrically arranged on the x-axis and the y-axis, and each 1 / 4 antenna array is cascaded with a linear frequency variable coupling filter 10. Further, each of the 1 / 4 antenna arrays includes: a power division waveguide layer, and a plurality of sub-array antenna units arranged above the power division waveguide layer.

[0039]The sub-array antenna unit includes dual-polarized radiation antenna units arranged in a 2×2 structure.

[0040]Among them, su...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/52H01Q1/50H01Q1/00H01Q1/36H01Q3/28H01Q13/10H01Q21/24
CPCH01Q1/52H01Q1/50H01Q1/002H01Q1/36H01Q13/10H01Q3/28H01Q21/24
Inventor 张涛黄勇鲁洵洵马尧李政杜康明李政伟
Owner SHANGHAI RADIO EQUIP RES INST
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