Metamaterial and polarizer

A technology of metamaterials and polarizers, applied in the field of metamaterials, can solve problems such as incompatibility

Active Publication Date: 2016-08-10
SHENZHEN KUANG CHI METAMATERIAL TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, in order to adapt to the characteristics of modern information-intensive multilateral, an antenna with only one polarization is no longer suitable for the requirements of modern communication systems

Method used

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  • Metamaterial and polarizer
  • Metamaterial and polarizer

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Experimental program
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Embodiment 1

[0033] In this embodiment, the polarizer is a polarization rotating device. The incident electromagnetic wave is a linearly polarized wave, and the first folded line part 121 and the second folded line part 122 are linear structures, and a broken line microstructure with an included angle of 90° is formed after the two are connected. The polarization direction of the electromagnetic wave is 45° to the first folded line portion 121 and the second folded line portion 122, and the electromagnetic wave incident on the folded line structure 120 on the metamaterial 200 is decomposed into Two components, the initial phases of the two components are equal. When the difference between the length a of the first folded line portion 121 and the length b of the second folded line portion 122 is equal to an odd multiple of 1 / 2 of the equivalent wavelength of the original electromagnetic wave, the phase difference between the two components of the electromagnetic wave is 180°, and the compos...

Embodiment 2

[0035] In this embodiment, the polarizer is a linear polarization-to-circular polarization device. The incident electromagnetic wave is a linearly polarized wave, and the first folded line portion 121 and the second folded line portion 122 are both linear structures, which form a folded line microstructure with an included angle of 90° after they connect. The polarization direction of the electromagnetic wave is 45° to the first folded line portion 121 and the second folded line portion 122, and the electromagnetic wave incident on the folded line structure 120 on the metamaterial 200 is decomposed into Two components, the initial phases of the two components are equal. When the difference between the length a of the first folded line portion 121 and the length b of the second folded line portion 122 is equal to an odd multiple of 1 / 4 of the equivalent wavelength of the original electromagnetic wave, the phase difference between the two components of the electromagnetic wave i...

Embodiment 3

[0038]In this embodiment, the polarizer is a circular polarization-to-linear polarization device. The incident electromagnetic wave is a circularly polarized wave, and the first folded line part 121 and the second folded line part 122 are linear structures, and a broken line microstructure with an included angle of 90° is formed after the two are connected. The electromagnetic wave incident on the folded line structure 120 on the metamaterial 200 is decomposed into two components along the first folded line portion 121 and the second folded line portion 122 , and the initial phase difference of the two components is 90°. When the difference between the length a of the first folded line portion 121 and the length b of the second folded line portion 122 is equal to an odd multiple of 1 / 4 of the equivalent wavelength of the original electromagnetic wave, the phase difference between the two components is 0° or 180°, and the circular polarization The wave is converted into a linea...

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PUM

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Abstract

The invention relates to a metamaterial, comprising at least one fold line structural layer; the fold line structural layer comprises a substrate and at least one fold line structure arranged on the substrate; the fold line structure comprises a first fold line portion and a second fold line portion; the first end of the first fold portion is in connection with the first end of the second fold line portion; a length difference exists between the first fold line portion and the second fold line portion; and the first fold line portion and the second fold line portion form an angle of 90 DEG. The metamaterial sets the fold line structure on the fold line structural layer to realize electromagnetic wave polarization conversion through the fold line structure. In addition, the length difference between the first fold line portion and the second fold line portion can be determined according to the wave length of original polarized wave, and electromagnetic wave conversion results can be controlled through the relation between the length difference and the wave length.

Description

technical field [0001] The invention relates to a metamaterial, in particular to a metamaterial and a polarizer. Background technique [0002] In the fields of radar, communication, aerospace, remote control and telemetry, etc., the reflection characteristics of targets, the propagation of electromagnetic waves, and the receiving performance of signals are all related to the polarization form of waves. Therefore, polarization information has great application potential in target detection, enhancement, filtering and recognition. In addition, radar polarization countermeasures are technologies that use the polarization characteristics of antennas and electromagnetic waves for interference and anti-interference. Since the polarization characteristics are helpful to counter the interference of jamming waves and identify polarized stealth targets, with the upgrading of communication and electronic countermeasures in modern warfare, polarization technology has become an importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/24H01Q15/00
CPCH01Q15/00H01Q15/24H01Q15/242H01Q15/244
Inventor 不公告发明人
Owner SHENZHEN KUANG CHI METAMATERIAL TECH LTD
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