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X/K-band composite metamaterial and radome-array integrated structure

A metamaterial, K-band technology, used in antenna arrays, antennas, radiation element covers, etc.

Active Publication Date: 2014-12-10
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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At present, there is no literature at home and abroad to show that the existing inventions and innovations have filled this technological gap

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  • X/K-band composite metamaterial and radome-array integrated structure
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  • X/K-band composite metamaterial and radome-array integrated structure

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] The present invention provides an X / K band composite metamaterial 100, such as figure 1 As shown, it includes a dielectric substrate 103 made of non-conductive material, a metal foil layer attached to the lower surface of the dielectric substrate and a resistive film layer attached to the upper surface of the dielectric substrate, and the dielectric substrate, metal foil layer and resistive film layer Virtually divided into a plurality of periodically arranged unit structures 102; a square metal foil 104 is etched on the metal foil layer of the unit structure 102; a square ring is sputtered on the resistive film layer of the unit structure Shaped resistive film 106; two slits 105 of the same size and perpendicular to each other are hollowed out on the square metal foil 104.

[0034] Among them, on the upper and lower surfaces of the dielectric s...

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Abstract

The invention belongs to the technical field of materials and radomes and discloses an X / K-band composite metamaterial. The X / K-band composite metamaterial comprises a dielectric substrate made of nonconductive material. A metal foil layer is attached to the lower surface of the dielectric substrate, and a resistive film layer is attached to the upper surface of the dielectric substrate. The dielectric substrate, the metal foil layer and the resistive film layer are virtually divided into a plurality of periodically-arranged unit structures. A square metal foil is made on a metal foil layer of each unit structure by etching. A square circular resistive film is made on a resistive film layer of each unit structure by sputtering. Two slots identical in size and perpendicular to each other are made in each square metal foil by hollowing. The frequency selective surface structure of the X / K-band composite metamaterial allows a circularly-polarized microstrip patch antenna array to be consistent in good radiation characteristic under the K band; meanwhile, under the X band, the absorbing material structure of the X / K-band composite metamaterial can absorb incoming electromagnetic wave to allow invisibility.

Description

technical field [0001] The invention belongs to the technical field of materials and radome, and in particular relates to an X / K band composite metamaterial and an integrated structure of a radome and an antenna array. Background technique [0002] Metamaterial is a kind of artificial synthetic material, which changes the electromagnetic properties of the dielectric substrate by periodically arranging the subwavelength unit structure on the surface of the dielectric substrate or embedding it inside the dielectric substrate. When electromagnetic waves irradiate metamaterials, different subwavelength unit structures can produce different equivalent permittivity and equivalent magnetic permeability of the dielectric substrate, thereby producing different manipulation functions for electromagnetic waves. The sub-wavelength unit structure can be realized by metal foil, resistive film, and magnetic material attached to a non-conductive dielectric substrate. On the one hand, the m...

Claims

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Application Information

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IPC IPC(8): H01Q1/42H01Q21/00
Inventor 吴微微袁乃昌黄敬健王青平周扬陈曦张德平卢洪树崔开博
Owner NAT UNIV OF DEFENSE TECH
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