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Dynamic polarization regulator and using method thereof

A regulator and dynamic technology, applied in the direction of electrical components, antennas, etc., can solve problems such as inability to cross polarization conversion, achieve the effects of shortening design time and design cost, rich material types, and improving user experience

Active Publication Date: 2019-12-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a dynamic polarization regulator and its usage method to solve the problem that the prior art cannot use a controller to realize the constant polarization direction of linearly polarized electromagnetic waves or perform cross-polarization conversion. The problem with two functions

Method used

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  • Dynamic polarization regulator and using method thereof
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  • Dynamic polarization regulator and using method thereof

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Embodiment 1

[0058] A specific embodiment of the present invention discloses a dynamic polarization regulator, such as figure 1 As shown, it includes m×n cells arranged periodically; where, m represents the number of rows, n represents the number of columns, m,n≥2.

[0059] Each primitive cell further includes a metal resonance unit, a dielectric unit, and a regulation unit.

[0060] The metal resonator unit is composed of multi-layer anisotropic metal layers. It is used to couple the electromagnetic waves transmitted through it after electrification, and obtain linearly polarized waves with no change in polarization direction or cross-polarization conversion in polarization direction. linearly polarized waves.

[0061] The dielectric unit is arranged between the metal layers of the metal resonant unit, and is used to provide support for the metal resonant unit and change the electromagnetic polarization capability of the metal resonant structure.

[0062] The regulating unit is used to ...

Embodiment 2

[0066] Based on the technical optimization of Embodiment 1, the metal resonance unit may include 3-5 metal layers. At least one metal layer is selected as the control layer, the metal layer adopts a metal hollow ring hole structure, and the control units are arranged symmetrically in the ring holes to connect the inner and outer metals. The wiring of a pair of control units arranged opposite to each other is equivalent to the double opening splitting wiring of the metal layer. That is to say, in addition to the power-on control, part of the structure of the control unit is equivalent to a double-opening splitting connection provided with a double-opening splitting structure. The other metal layers use a double split split ring structure. From the bottom metal layer to the top metal layer, the double-opening cleavage line changes the same angle in turn until the top metal layer and the bottom metal layer double-opening cleavage line form 90°. It is worth noting that if the sh...

Embodiment 3

[0082] The present invention also discloses a method for using the dynamic polarization controller described in Embodiment 2, which specifically includes the following steps:

[0083] S1. When it is necessary to obtain a linearly polarized wave whose polarization direction does not change, the x-axis forward diode of the control unit is turned off, the x-axis negative diode is turned on, the y-axis forward diode is turned on, and the y-axis negative diode is turned on. The cut-off is used to ensure that the x-polarized waves propagating in the positive and negative directions along the z-axis do not undergo polarization conversion.

[0084] The positive direction of the z-axis is defined as the direction vertically upward to the plane of the underlying metal layer; the xyz coordinate system conforms to the right-hand rule.

[0085] S2. When it is necessary to obtain a linearly polarized wave whose polarization direction undergoes cross-polarization conversion, the x-axis posit...

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Abstract

The invention relates to a dynamic polarization regulator, which belongs to the technical field of polarization regulation, and solves the problem that two functions of linear polarization electromagnetic wave polarization direction invariance or cross polarization conversion cannot be realized through one regulator in the prior art. The dynamic polarization regulator comprises m*n primitive cellswhich are periodically arranged, wherein m represents the number of rows, n represents the number of columns, and m and n are greater than or equal to 2. Each primitive cell further comprises a metalresonance unit which is used for enabling electromagnetic waves transmitted by the metal resonance unit to be coupled after the metal resonance unit is powered on and acquiring linear polarization waves with the polarization direction invariance or linear polarization waves with the polarization direction subjected to cross polarization conversion, dielectric units which are arranged among the metal layers of the metal resonance unit and are used for providing support for the metal resonance unit and changing the electromagnetic polarization capability of the metal resonance structure, and aregulation unit which is used for controlling the electrification and the electrification direction of the metal resonance unit. Broadband and high-efficiency electromagnetic wave regulation can be carried out, the structure is simple, manufacturing is easy, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of polarization regulation, in particular to a dynamic polarization regulator and a method for using the same. Background technique [0002] Polarization is an important characteristic of electromagnetic waves, and has a wide range of applications in high-tech fields such as communication, navigation, guidance and radar. The traditional electromagnetic wave polarization control methods include grating control, dichroic crystal control and control based on birefringence effect. However, the control device corresponding to the above control method usually has a complicated structure, is relatively large and thick. [0003] Due to its flexible design, simple structure and high integration, metasurface structure has become an ideal material for regulating the polarization characteristics of electromagnetic waves. Designing the basic unit of its electromagnetic structure can realize the polarization regulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/24
CPCH01Q15/242
Inventor 魏泽勇刘晓琴李宏强
Owner TONGJI UNIV
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