Bi-waveband high-wave-transmittance metasurface

A metasurface, wave transmittance technology, applied in electrical components, antennas, etc., can solve the problem of low wave transmittance, achieve high wave transmittance, improve stability, and achieve the effects of high wave transmittance and total reflection

Pending Publication Date: 2017-11-07
SOUTHEAST UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

Traditional transmissive structures usually have low wave transmittance at large angles of incidence, and can only achieve wave transmittance in a single frequency band

Method used

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  • Bi-waveband high-wave-transmittance metasurface
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  • Bi-waveband high-wave-transmittance metasurface

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0027] Compared with the traditional single-function metasurface, the present invention can realize high wave transmittance in dual frequency bands, realize total reflection in other specific frequency bands, and realize the synthesis of two electromagnetic structures. In the embodiment of the present invention, the entire metasurface is arranged by a periodic unit structure, and the structure size is 30*30mm, such as figure 1 As shown, the structure size is 30*30mm, and the incident angle is 70° obliquely. The unit structure is different from the conventional unit. It consists of three parts. It adopts a three-layer structure of dielectric substrate-metal bending line-dielectric substrate. The metal bending line 2 etches the middle of two dielectric substrates 1 facing oppositely. Wherein, the dielectric constants of the two dielectric substrates 1 are both...

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Abstract

The invention discloses a bi-waveband high-wave-transmittance metasurface which comprises structural units arranged in an array, wherein each structural unit comprises two opposite dielectric substrates, and a metal folding line between the two dielectric substrates. The metal folding line is etched in the middle of the dielectric substrates. The large-angle high-wave-transmittance metasurface has the advantages of simple structure, easy processing, high transmissibility in large incident angle, and bi-waveband transmission property. When the incident angle is large, the bi-waveband high-wave-transmittance metasurface realizes high transmission between two wavebands of Ku and Ka, and has total reflection characteristic in the X wave band. Combination of two functions is realized.

Description

technical field [0001] The invention relates to a dual-band high-transmittance metasurface, which belongs to the field of novel artificial electromagnetic devices. Background technique [0002] As a new type of medium, new artificial electromagnetic materials (also known as metamaterials) are composed of a series of artificially designed structural units arranged according to certain rules on the sub-wavelength scale, and have characteristics that are incomparable to natural materials. The magnetic permeability can be manually adjusted in a specific frequency band. A metasurface is a two-dimensional metamaterial whose thickness is much smaller than the wavelength. It is usually composed of periodic or quasi-periodic subwavelength structural units arranged two-dimensionally. It is an extension and expansion of metamaterial research. It is usually divided into reflective metasurfaces and transmissive metasurfaces. supersurface. Due to the rich and unique physical properties ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/0086
Inventor 蒋卫祥张娜崔铁军柏林汤剑谭仁超
Owner SOUTHEAST UNIV
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