Cone-mounted two-dimensional conformal low-scattering ultra-broadband phased array based on strong coupling effect

A strong coupling, phased array technology, applied in the direction of separately powered antenna arrays, antenna arrays, radiating element structures, etc., can solve the problems of sacrificing radiation aperture, unexcited, limited scattering reduction effect, etc., to achieve processing and assembly. Convenience and improvement of the effect of active standing waves

Active Publication Date: 2021-07-20
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the resistive electromagnetic metamaterial is only a simple periodic circular patch structure, and the effect of scattering reduction is limited.
Moreover, half of the units in the array are dummy units, which are in an unexcited state, sacrificing the general radiation aperture

Method used

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  • Cone-mounted two-dimensional conformal low-scattering ultra-broadband phased array based on strong coupling effect
  • Cone-mounted two-dimensional conformal low-scattering ultra-broadband phased array based on strong coupling effect
  • Cone-mounted two-dimensional conformal low-scattering ultra-broadband phased array based on strong coupling effect

Examples

Experimental program
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Embodiment 1

[0025] refer to Figure 1 to Figure 3 , Example 1 is a two-dimensional conformal low-scattering ultra-broadband strong-coupled phased array mounted on a conical frustum, composed of image 3 The 9×10 cells form an array, and the finite array is placed under ideal absorbing boundary conditions for simulation. The antenna unit structure of the present invention is described as follows: an unbalanced feeding structure (1) of the antenna; two metal short-circuit posts (2); a metal floor (3) with a certain thickness; a medium for supporting above the metal floor Substrate (4); the dipole radiating unit (5) of the strong capacitive coupling structure printed on the upper surface of the above-mentioned supporting medium substrate, and the two metal short-circuit columns are respectively arranged on the left and right arms of the dipole radiating unit; The first wide-angle impedance matching layer (6) above the substrate; the resistive printing medium layer (7) above the first wide-a...

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Abstract

The invention discloses a two-dimensional conformal low-scattering ultra-broadband phased array antenna mounted on a conical frustum based on the strong coupling effect. The conical frustum busbars change linearly, showing a conical changing array, and realize ±45° scanning of the E plane and the H plane within the wide frequency range of 6-18GHz. By loading the long metal patch, the deterioration of the active standing wave caused by the conformal environment is effectively improved. In addition, the loading of quasi-periodic electromagnetic metamaterials significantly reduces the cross-polarization RCS of the phased array antenna itself in the full frequency range of the phased array antenna's operating frequency, and the overall radiation efficiency of the conformal phased array is guaranteed at a high level. Finally, the application of the full-slit ring helps to realize the phased array antenna with ultra-wide bandwidth angular scanning characteristics while ensuring the scattering characteristics of the phased array antenna.

Description

technical field [0001] The invention belongs to the technical field of antenna engineering, and in particular relates to a two-dimensional conformal, low-scattering ultra-wide bandwidth angular scanning phased antenna array system, specifically a conformal antenna array system based on strong mutual coupling effect and loaded with electromagnetic metamaterials Based on the frustum carrier, the scattering characteristics are good, and the phased antenna array that can realize ultra-wide bandwidth angular scanning. It is especially suitable for platforms that require good antenna stealth performance and conformal integration with the platform, and can realize ultra-wide bandwidth angular scanning. Background technique [0002] With the development of information warfare, especially the rapid progress of radar detection technology, stealth technology occupies an increasingly important position in modern electronic warfare. Radar Cross Section (Radar Cross Section), referred to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/06H01Q9/16H01Q1/38H01Q1/48H01Q1/50H01Q15/00
CPCH01Q1/38H01Q1/48H01Q1/50H01Q9/16H01Q15/0086H01Q21/06H01Q21/062
Inventor 杨仕文张哲晨屈世伟陈益凯胡俊
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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