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Metasurface reflective array plane used for focusing electromagnetic waves

A metasurface, electromagnetic wave technology, applied in the field of communication, can solve the problem of unsatisfactory reflectivity, and achieve the effect of improving the reflection effect, improving the focusing ability and efficiency, and reducing the attenuation rate

Active Publication Date: 2016-07-06
德州亿诺信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the research work of V.M.Shalaev et al., although the light wave is deflected in a large angle range, its reflectivity is not very ideal

Method used

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  • Metasurface reflective array plane used for focusing electromagnetic waves
  • Metasurface reflective array plane used for focusing electromagnetic waves
  • Metasurface reflective array plane used for focusing electromagnetic waves

Examples

Experimental program
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Embodiment

[0023] Embodiment: a metasurface reflective front for focusing electromagnetic waves, as attached Figure 1-3 As shown, it includes an array phase plate 2 spliced ​​into a whole by a plurality of phase shifting units 1. The phase shifting unit 1 includes a dielectric plate 3. The surface of the dielectric plate 3 is provided with a metal patch 4, and the middle of the metal patch 4 is provided with an upper Holes 5; the bottom of the dielectric plate 3 is provided with a metal grounding plate 6, and the middle of the metal grounding plate 6 is provided with a lower hole 7; the middle of the dielectric plate 3 is provided with a metal tube 8, and the metal tube 8 communicates with the upper hole 5 and the lower hole 7 .

[0024] In order to achieve accurate control of the reflected wave front, the reflection phase change needs to cover [0°, 360°]. For the scattering of incident plane waves, we use a gradient array to study. image 3 Array devices designed for graded structures...

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Abstract

The invention discloses a metasurface reflective array plane used for focusing electromagnetic waves. The super-surface reflective array plane comprises an array phase plate (2) formed by more than two phase shifting units (1), wherein each phase shifting unit (1) comprises a dielectric plate (3); a metal patch (4) is arranged on the surface of each dielectric plate (3); an upper hole (5) is formed in the middle of each metal patch (4); a metal grounding plate (6) is arranged at the bottom of each dielectric plate (3); a lower hole (7) is formed in the middle of each metal grounding plate (6); a metal tube (8) is arranged in the middle of each dielectric plate (3); and the metal tube (8) is communicated with the corresponding upper hole (5) and the corresponding lower hole (7). The metasurface reflective array plane has a quite excellent incident wave reflection and focusing effect; in addition, the incident wave reflection attenuation rate is lowered, so that the reflective effect of the metasurface reflective array plane is improved consequentluy; the reflection efficiency of the existing array antenna is normally 30-40%, while the reflection efficiency of the metasurface reflective array plane can reach 65%; and in addition, the metasurface reflective array plane also has the characteristics of small volume, light weight and low cost.

Description

technical field [0001] The invention relates to a metasurface reflection front for focusing electromagnetic waves, belonging to the communication field. Background technique [0002] The research on the focusing of electromagnetic waves has always been an important research focus of scientists. In order to ensure that the energy of electromagnetic waves does not spread during space transmission, electromagnetic waves must be able to focus to the receiving device like light. From the analogy of light focusing, we know that in order to focus electromagnetic waves, the transmitting antenna The phase of the aperture must be spherically distributed. People's research on focusing antenna originated from people's research on electromagnetic energy transmission in the 1950s, that is, electromagnetic waves are used as a means of energy transmission. In the early 1960s, Goubao, Shermen, Borigiotti and others did a lot of work on the focusing of aperture antennas, and established the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/14
CPCH01Q15/145
Inventor 徐弼军陶祥兴
Owner 德州亿诺信息科技有限公司
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