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A new type of high-altitude invisible structure

An invisible and new technology, applied in antennas, electrical components, etc., can solve the problems of complicated implementation of invisibility cloak technology and limited working direction

Active Publication Date: 2021-01-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the existing invisibility cloak technology is complicated or the working direction is limited, and to provide a new type of high-altitude invisible structure

Method used

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  • A new type of high-altitude invisible structure

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Experimental program
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Embodiment

[0028] Such as figure 1 shown (two-dimensional cross-sectional view). A three-dimensional structure can be obtained by elongating the design structure along the direction of the paper or rotating it symmetrically.

[0029] The whole device is made of multi-layer metal board ( figure 1 Medium black thick lines) are arranged in parallel. All plates have the same length (equal to integer multiples of the working wavelength). The air spacing between the metal plates is equal (equal to the width of the metal plates) and smaller than the operating wavelength. The other white areas outside the metal plate are air. The arrangement direction of the metal plates in the first and third quadrants is along the -45 degree direction, and the arrangement direction of the metal plates in the second and fourth quadrants is along the +45 degree direction.

[0030] When in use, place the entire device at high altitude. The observer is located some distance below the device. This is to ensu...

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Abstract

The invention discloses a novel high-altitude stealth structure. The novel high-altitude stealth structure is formed by a plurality of parallel metal plates with equal intervals, wherein all metal plates are the same in size; the lengths of the metal plates are integer multiples of operating wavelengths; a rectangular air region exists in the middle of a shell structure enclosed by the metal plates for placing hidden objects. Shapes and materials of the hidden objects can be arbitrarily selected. The stealth shell structure is located at a high-altitude position during working. When an external observer is at the position at a certain distance from the lower part of the stealth shell structure, the whole structure and the objects placed in the rectangular region are invisible to the outside world. The novel high-altitude stealth structure is convenient to implement, wide-angle effective working can be implemented and the observer cannot perceive while observing at an arbitrary positionat the lower part of the stealth structure.

Description

technical field [0001] The invention belongs to a novel high-altitude stealth technology, which is a high-altitude invisible shell-like structure. Background technique [0002] Electromagnetic invisibility has been the dream of human beings since ancient times, and different ways of invisibility have appeared in many science fiction novels. The invisibility we are talking about here refers to the invisibility to the human eye, not the wave-absorbing technology currently used for stealth aircraft. In 2006, after the theory of transformation optics was put forward, there was an upsurge of research on invisible shells for the naked eye [1]. With the help of transformation optics, a shell-like invisible structure can be designed through coordinate transformation: when the light enters this type of shell-like invisible structure, it will be smoothly guided around the area to be hidden, and then guided again Return to its original path to continue spreading. From the last outgo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/02
CPCH01Q15/02
Inventor 何赛灵孙非
Owner ZHEJIANG UNIV
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