Meta-material realizing polarization conversion, and polarizer

A polarization conversion and metamaterial technology, applied in the field of metamaterials, can solve problems such as incompatibility requirements, and achieve the effect of high polarization conversion efficiency and performance, and low profile size

Active Publication Date: 2015-02-11
KUANG CHI INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, in order to adapt to the dense and changeable characteristics of modern information, an antenna with only one polarization is not suitable for the requirements of modern communication systems.

Method used

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  • Meta-material realizing polarization conversion, and polarizer
  • Meta-material realizing polarization conversion, and polarizer
  • Meta-material realizing polarization conversion, and polarizer

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the drawings and specific embodiments. Note that the following aspects described in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

[0032] The polarization of electromagnetic waves refers to the characteristics that the magnitude and orientation of the electromagnetic wave field vector change with time at a given point or surface in space. The trajectory of the vector end of the electric field vector E with time is usually used to describe the polarization of the electromagnetic wave. In the three-dimensional space, the instantaneous electric field of the electromagnetic wave propagating along the Z axis can be written as:

[0033]

[0034] Where E xm And E ym Is the amplitude of the electric field in the x and y directions, ω is the angular frequency of the electromagnetic wave, wi...

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Abstract

The invention provides a meta-material realizing polarization conversion. The meta-material comprises at least one meander line structure layer, each layer of the at least one meander line structure layer comprises a substrate and a meander line structure disposed on the substrate. The meander line structure comprises at least one meander line, each meander line is composed of multiple line segments, and the lengths or the widths of at least two line segments from the multiple line segments are different. The invention further provides a polarizer composed of the meta-material.

Description

Technical field [0001] The invention relates to a metamaterial, in particular to a metamaterial and a polarizer for realizing polarization conversion. Background technique [0002] In the fields of radar, communications, aerospace and remote control and telemetry, the reflection characteristics of the target, the propagation of electromagnetic waves and the reception performance of the signal are all related to the polarization form of the wave. 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 to interfere and resist interference. Since the polarization feature helps to counter the interference of jamming waves and identify the polarized stealth targets, as modern warfare pays more attention to communication and electronic countermeasures, polarization techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/24H01Q15/16H01Q19/10
Inventor 不公告发明人
Owner KUANG CHI INST OF ADVANCED TECH
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