A Low Profile Series Parallel Feed Waveguide Array Antenna

A feed waveguide and array antenna technology, which is applied to linear waveguide feed arrays, individually powered antenna arrays, antennas, etc., can solve the problems of high profile, difficult feeding network design, and difficulty in achieving low side lobes, etc. Low profile, light weight, easy low side lobe effect

Active Publication Date: 2022-01-28
南京众博达电子科技有限公司
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a low-profile series-parallel combined feed waveguide array antenna to solve the problem of high profile and non-integer power of 2 aperture array feed network design difficulty in the power division parallel feed form waveguide array antenna. Difficult to achieve low sidelobe and other issues

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  • A Low Profile Series Parallel Feed Waveguide Array Antenna
  • A Low Profile Series Parallel Feed Waveguide Array Antenna
  • A Low Profile Series Parallel Feed Waveguide Array Antenna

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Embodiment Construction

[0042] In order to make the technical solutions of the present invention clearer and clearer to those skilled in the art, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0043] like Figure 1-Figure 11 As shown, the low-profile series and combined feeding waveguide array antenna provided by this embodiment includes a metal base 13, that is, an array antenna base, and the metal base 13 includes a radiation layer 1, a coupling layer stacked in order from top to bottom. layer 4 and feed network layer 5,

[0044] Radiation layer 1 includes 320 2x2 radiation elements 2,

[0045] The coupling layer 4 includes the same number of coupling cavities 14 as the 2x2 radiation unit 2, namely 320,

[0046] The feed network layer 5 has a feed port, and the feed port of the feed network layer 5 to the coupling layer 4 sequentially includes the eq...

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Abstract

The invention discloses a low-profile series-parallel combined feeding waveguide array antenna, which relates to the technical field of antennas and includes a metal base, which includes a radiation layer, a coupling layer and a feed network layer stacked in sequence in one direction, and the radiation layer includes There are several 2x2 radiating units, the coupling layer includes a coupling cavity, the feed network layer has a feed port, and the feed port of the feed network layer to the coupling layer includes an equal ratio power divider, an unequal power divider I, and a different power divider. Equal power divider Ⅱ and series feed auxiliary network. The rounded radiating hole of the 2x2 radiating unit in the present invention adopts an asymmetric chamfering method, which is more conducive to suppressing the level of the side lobe, and it is easy to realize low side lobes; The auxiliary hybrid feeding method solves the problems of high profile, non-integer power of 2 aperture array feeding network design difficulty, and difficulty in achieving low side lobes in the waveguide array antenna in the form of power division parallel feeding.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a low-profile serial parallel feeder waveguide array antenna. Background technique [0002] Waveguide array antennas are generally divided into waveguide wall slot antennas in the form of series feeding and conventional arrays in the form of power division and parallel feeding. [0003] The waveguide wall slot antenna has the characteristics of easy control of the mouth surface field distribution, high antenna aperture efficiency, stable performance, simple and compact structure, high strength, and convenient installation, and it is easy to realize the advantages of narrow beam, low sidelobe and even ultra-low sidelobe. The bandwidth is narrow. [0004] The conventional waveguide array in the form of power division parallel feeding not only has the advantages of high antenna aperture efficiency, stable performance, compact structure, high strength, and high reliability, but als...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q21/00H01Q21/06H01Q23/00
CPCH01Q1/38H01Q1/50H01Q21/0006H01Q21/0037H01Q21/061H01Q23/00
Inventor 段勇军刘孔涛李帅
Owner 南京众博达电子科技有限公司
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