Wideband radar cross-section reduction slot array antenna based on hybrid super-surface

A slot array antenna, broadband radar technology, applied to slot antennas, individually powered antenna arrays, antennas, etc., can solve problems such as large radar scattering cross-section, achieve good scattering characteristics, ensure radiation performance, and reduce the effect of scattering cross-section

Active Publication Date: 2019-06-21
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Slot array antennas have the advantages of light weight, small size, thin profile, and easy processing, but the existing slot array antennas often have a large radar cross-section

Method used

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  • Wideband radar cross-section reduction slot array antenna based on hybrid super-surface
  • Wideband radar cross-section reduction slot array antenna based on hybrid super-surface
  • Wideband radar cross-section reduction slot array antenna based on hybrid super-surface

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, embodiment of the present invention and effect are described in further detail:

[0036] refer to figure 1 and figure 2 , the invention includes two layers of metal floor and seven layers of dielectric substrate. in:

[0037] A lower metal floor 11 is printed on the lower surface of the first lower dielectric substrate 1 . The top of the lower dielectric substrate 1 is in close contact with the upper dielectric substrate 2 , the second dielectric substrate 3 , and the third dielectric substrate 4 in sequence. The fourth dielectric substrate 5, the fifth dielectric substrate 6, and the sixth dielectric substrate 7 are sequentially placed on the top of the third dielectric substrate 4 according to different intervals, that is, the distance h1 between the fourth dielectric substrate 5 and the fifth dielectric substrate 6 is 2.2mm~ 3.6 mm; the distance h2 between the fifth dielectric substrate 6 and the sixth dielectric s...

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Abstract

The invention provides a wideband radar cross-section reduction slot array antenna based on hybrid super-surface. The antenna comprises a lower dielectric plate (1) and an upper dielectric plate (2),wherein second and third dielectric plates (3, 4) are sequentially and closely attached above the upper dielectric plate, and fourth, fifth and sixth dielectric plates (5, 6, 7) are sequentially placed at different intervals above the third dielectric plate; the upper surfaces of the second and third dielectric plates are respectively printed with L-shaped metal patch units (31, 41) in checkerboard type arrangement; the lower surface of the fourth dielectric plate is respectively printed with an impedance structure (51) and a metal patch unit (52) in checkerboard type arrangement; the lower surface of the fifth dielectric plate (6) is printed with a plurality of strip metal patches (61); and the upper and lower surfaces of the sixth dielectric panel (7) are respectively printed with the metal patch unit (52) and the impedance structure (51) in checkerboard type arrangement. The wideband radar cross-section reduction slot array antenna has good scattering characteristics and realizes effective reduction of the cross-band single-station and double-station radar cross sections in the slot array antenna.

Description

technical field [0001] The invention belongs to the technical field of antennas, and particularly relates to a slot array antenna, which can be used in an aircraft to realize the reduction of the in-band and out-of-band single-station and dual-station radar scattering cross sections of the overall radar system. Background technique [0002] In the field of communication, the signal transmitting and receiving system is one of the most important components of the entire communication platform, the antenna is the core part of the system, and the radiation characteristics are the main indicators to measure the quality of the antenna. The key to improving the scattering characteristics is how to reduce the radar cross section, and the radar cross section is the most basic parameter in the scattering characteristics. It refers to a measure of the return power of a target in a given direction under the illumination of a plane wave. [0003] The antenna is a special kind of scattere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q13/10H01Q15/14H01Q21/00H01Q21/06H01Q15/00
Inventor 贾永涛史港刘英
Owner XIDIAN UNIV
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