Novel broadband electromagnetic wave polarization regulation electromagnetic structure

An electromagnetic structure and electromagnetic wave technology, applied in the direction of electrical components, antennas, etc., can solve the problems of low polarization conversion efficiency, narrow polarization conversion bandwidth, and poor polarization control ability, so as to facilitate mass production and manufacturing process The effect of simple maturity and low preparation cost

Inactive Publication Date: 2015-08-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reflective polarization control electromagnetic structure still has problems such as narrow polarization conversion bandwidth, low polarization conversion efficiency, and large structure thickness. bandwidth narrowing

Method used

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  • Novel broadband electromagnetic wave polarization regulation electromagnetic structure
  • Novel broadband electromagnetic wave polarization regulation electromagnetic structure
  • Novel broadband electromagnetic wave polarization regulation electromagnetic structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A polarization-regulated electromagnetic structure is coated with periodic metal copper elliptical rings on the surface of a dielectric substrate with a thickness of 2.0mm. The unit size is: p=7.0mm, a=4.0mm, b=1.0mm, m=2.0mm, n=0.5mm; the electromagnetic parameter range of the dielectric substrate is: the real part of the relative dielectric constant ranges from 3.2 to 4.6, The imaginary part ranges from 0 to 0.2.

[0022] The polarization-regulated electromagnetic structure designed by the above method has a 70% polarization conversion rate bandwidth of 8.0GHz to 18.0GHz under the vertical incidence of electromagnetic waves; when the incident angle of electromagnetic waves increases to 30°, the 70% polarization of the structure The conversion rate bandwidth can be kept consistent with the normal incidence; when the incident angle increases to 45°, the 70% polarization conversion rate bandwidth of the structure is 8.3GHz to 17.0GHz. The polarization conversion bandwid...

Embodiment 2

[0024] A polarization-regulated electromagnetic structure is coated with periodic metal copper elliptical rings on the surface of a dielectric substrate with a thickness of 3.0 mm. The unit size is: p=10.0mm, a=6.0mm, b=1.0mm, m=2.0mm, n=0.5mm; the electromagnetic parameter range of the dielectric substrate is: the real part of the relative dielectric constant ranges from 3.2 to 4.6, The imaginary part ranges from 0 to 0.2.

[0025] The polarization-controlled electromagnetic structure designed by the above method has a 70% polarization conversion rate bandwidth of 6.0 GHz to 12.9 GHz under the vertical incidence of electromagnetic waves; when the incident angle of electromagnetic waves increases to 30°, the structure 70% polarization The conversion rate bandwidth can be kept consistent with the normal incidence; when the incident angle increases to 45°, the 70% polarization conversion rate bandwidth of the structure is 6.0GHz to 12.3GHz. The polarization conversion bandwidth...

Embodiment 3

[0027] A polarization-regulated electromagnetic structure is coated with periodic metal copper elliptical rings on the surface of a dielectric substrate with a thickness of 1.8mm. The size of the seven units is: p=8.0mm, a=4.0mm, b=1.0mm, m=2.0mm, n=0.5mm; the range of electromagnetic parameters of the dielectric substrate is: the real part of the relative dielectric constant ranges from 3.2 to 4.6, The imaginary part ranges from 0 to 0.2.

[0028] The polarization-controlled electromagnetic structure designed by the above method has a 70% polarization conversion rate bandwidth of 8.7 GHz to 18.0 GHz under the vertical incidence of electromagnetic waves; when the incident angle of electromagnetic waves increases to 30°, the structure 70% polarization The conversion rate bandwidth can be kept consistent with the normal incidence; when the incident angle increases to 45°, the 70% polarization conversion rate bandwidth of the structure is 8.9GHz to 17.5GHz. The polarization conv...

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Abstract

The invention provides a novel broadband electromagnetic wave polarization regulation electromagnetic structure, and is used for solving the problems that an existing polarization regulation electromagnetic structure is relatively narrow in polarization conversion bandwidth, low in polarization conversion efficiency and relatively large in structure thickness, and when an electromagnetic wave incident angle changes, a polarization regulation capability of the structure becomes poor and conversion bandwidth becomes narrow. The novel broadband electromagnetic wave polarization regulation electromagnetic structure includes three layers, a bottom layer is a metal plate, a middle layer is a medium substrate, and a surface layer is a periodical metal elliptical ring layer; and the period of the periodical metal elliptical ring layer is 7.0 to 11.0mm, and dimensions of the metal elliptical ring are as follows: a major semi axis of an outer ellipse is 3.5 to 6.5mm, a minor semi axis is 0.8 to 1.6mm, a major semi axis of an inner ellipse is 1.8 to 2.2mm, and a minor semi axis is 0.3 to 0.6mm. The structure provided by the invention is superior to a conventional polarization regulation electromagnetic structure in thickness, conversion bandwidth, conversion efficiency and incident angle.

Description

technical field [0001] The invention belongs to the technical field of electronic materials, and in particular relates to the design of an electromagnetic structure, in particular to a novel broadband electromagnetic wave polarization-regulated electromagnetic structure. Background technique [0002] The polarization state is a very important feature of electromagnetic waves. Using the polarization properties of electromagnetic waves can identify, encode and sample detection targets, and has been gradually applied in high-tech fields such as communication, navigation and radar. Regulating the polarization state of electromagnetic waves has always been an important goal that people want to achieve. In nature, the media that can regulate the polarization state of electromagnetic waves are very limited and inefficient. Therefore, artificially controlling the polarization state of electromagnetic waves has always been a goal that people want to achieve. [0003] Electromagnetic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/24
Inventor 邓龙江张林博周佩珩陈海燕陆海鹏谢建良
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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