Dual-polarized monopulse antenna based on substrate integrated waveguide and strip line feed

A substrate-integrated waveguide and stripline feeding technology, which is applied to electrical short antennas, antennas, resonant antennas, etc., can solve the problems of few dual-polarized single-pulse antennas, alleviate multipath fading, and reduce the occupied volume. , low cost effect

Active Publication Date: 2022-02-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, most of the designs only consider the single-polarization mode, and few can

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  • Dual-polarized monopulse antenna based on substrate integrated waveguide and strip line feed
  • Dual-polarized monopulse antenna based on substrate integrated waveguide and strip line feed
  • Dual-polarized monopulse antenna based on substrate integrated waveguide and strip line feed

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Embodiment Construction

[0027] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 As shown, a dual-polarized monopulse antenna based on substrate-integrated waveguide and stripline feeding, from top to bottom includes a square patch layer 1, a first square-shaped substrate-integrated waveguide cavity layer 2, a first Cross slot layer 3, second square-shaped substrate integrated waveguide cavity layer 4, second cross slot layer 5, substrate integrated waveguide comparator layer 6, vertical slot layer 7, stripline layer 8 and metal base plate 9, each Layers fit snugly.

[0029] Among them, the square patch layer 1, the first square-shaped substrate integrated waveguide cavity layer 2, the first cross slot layer 3, the second square-shaped substrate integrated waveguide cavity layer 4 and the second cross slot layer 5 form the upper radiation layer, The substrate integrated ...

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Abstract

The invention discloses a dual-polarized monopulse antenna based on substrate integrated waveguide and strip line feed. A square patch layer, a first substrate integrated waveguide cavity layer shaped like a Chinese character ''tian'', a first cross-shaped slot layer, a second substrate integrated waveguide cavity layer shaped like a Chinese character ''tian'', a second cross-shaped slot layer, a substrate integrated waveguide comparator layer, a vertical slot layer, a strip line layer and a metal bottom plate are sequentially arranged from top to bottom. An electromagnetic field forms a vertical polarization electromagnetic field after passing through the second cross-shaped slot layer, the vertical polarization electromagnetic field is coupled to the first cross-shaped slot layer to form a high-order mode, is finally coupled to the square patch layer, and is radiated to a free space by the square patch layer to form a vertical polarization wave beam; the strip line layer excites the vertical slot layer to generate a horizontal polarization electromagnetic field, and the horizontal polarization electromagnetic field is coupled to a square patch through a second cross-shaped slot and a first cross-shaped slot and radiated to a free space by the square patch to form a horizontal polarization beam. The dual-polarized monopulse antenna is simple in structure, high in gain and relatively deep in zero depth; and dual polarization of the monopulse antenna is realized.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a dual-polarized single-pulse antenna based on substrate integrated waveguide and stripline feed, which can be applied to K-band microwave radar tracking, communication and other purposes. Background technique [0002] The monopulse antenna is a precision tracking radar developed rapidly around the 1950s. Every time it transmits a pulse, the antenna can form several beams at the same time, and compare the amplitude and phase of the echo signals of each beam. When the target is on the axis of the antenna, the amplitude and phase of the echo signals of each beam are equal, and the signal difference is zero. ; When the target is not on the antenna axis, the amplitude and phase of the echo signals of each beam are not equal, resulting in a signal difference, and the antenna is driven to turn to the target until the antenna axis is aligned with the target, so that the ele...

Claims

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Application Information

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IPC IPC(8): H01Q9/04H01Q25/02H01Q25/04H01Q1/00H01Q15/24
CPCH01Q9/0414H01Q9/045H01Q25/02H01Q25/04H01Q1/002H01Q15/24
Inventor 刘少斌孙志超贺文辉胡智勇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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