Function reconfigurable polarization transformer based on active supersurface

A metasurface and converter technology, applied in the direction of electrical components, antennas, etc., can solve the problem that the polarization converter does not have tunable characteristics, and achieve the effect of simplifying the structure of the device

Pending Publication Date: 2018-08-03
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology

[0003] Aiming at the problem that existing polarization converters do not have tunable characteristics, the p

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  • Function reconfigurable polarization transformer based on active supersurface
  • Function reconfigurable polarization transformer based on active supersurface
  • Function reconfigurable polarization transformer based on active supersurface

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[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific examples and with reference to the accompanying drawings. It should be noted that the directional terms mentioned in the examples, such as "upper", "lower", "middle", "left", "right", "front", "rear", etc., are only referring to the directions of the drawings. Therefore, the directions used are only for illustration and are not intended to limit the protection scope of the present invention.

[0022] see figure 1 and 2 , a functionally reconfigurable polarization converter based on an active metasurface, including a polarization converter body consisting of a dielectric base layer 2 , an active metasurface layer 1 and a metal floor layer 3 .

[0023] The above-mentioned active metasurface layer 1 is composed of a plurality of identical butterfly-shaped structural units, and these b...

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Abstract

The invention discloses a function reconfigurable polarization transformer based on an active supersurface. The polarization transformer is composed of a medium substrate layer, an active supersurfacelayer and a metal floor layer. The active supersurface layer is composed of a plurality of same butterfly-shaped structure units. The butterfly-shaped structure units are arrayed on the upper surfaceof the medium substrate layer in a regular matrix at intervals. The metal floor layer is composed of a plurality of same strip-shaped metal sheets. The strip-shaped metal sheets are arrayed on the lower surface of the medium substrate layer in parallel at intervals. The medium substrate layer is provided with a plurality of metal via holes. Metal patches are all connected with the strip-shaped metal sheets under the metal patches through the corresponding metal via holes. By controlling the bias voltage of a variable capacitance diode, device functions are switched, the transformer has various functions of linear polarization deflection, elliptical polarization transformation, circular polarization transformation and the like, and the problem that a polarizer is monotonous in function issolved.

Description

technical field [0001] The invention relates to the technical field of polarization converters, in particular to a functionally reconfigurable polarization converter based on an active metasurface. Background technique [0002] Polarization is one of the important characteristics of electromagnetic waves, and it has important applications in the fields of communication, imaging, and sensing. New polarization conversion devices based on metasurfaces have been widely used due to their light weight, simple structure, and low loss. However, such devices are usually composed of passive metasurfaces, and the polarization converters designed therefrom have single functions and do not have tunable characteristics. To realize the multifunctional properties of the device, the geometric structure and parameters of the metasurface must be modified and redesigned, which greatly limits the application of the device. Contents of the invention [0003] Aiming at the problem that the exi...

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Application Information

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IPC IPC(8): H01Q15/24
CPCH01Q15/242Y02D30/70
Inventor 高喜黄俊翔杨万里
Owner GUILIN UNIV OF ELECTRONIC TECH
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