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Dual-channel independent programmable metasurface and control method thereof

A control method and metasurface technology, applied in the direction of electrical components, antennas, etc., can solve the problems that functions cannot be switched by real-time programming, limit the multi-functional application of dual-polarization metasurfaces, etc., and achieve the goal of improving information processing capabilities and increasing the number of Effect

Active Publication Date: 2020-10-30
SOUTHEAST UNIV
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Problems solved by technology

However, the existing dual-polarization metasurfaces are static or can only be fine-tuned, and their functions cannot be switched by real-time programming, which greatly limits the versatility of dual-polarization metasurfaces and their applications in ultrafast switching and scanning systems.

Method used

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  • Dual-channel independent programmable metasurface and control method thereof
  • Dual-channel independent programmable metasurface and control method thereof
  • Dual-channel independent programmable metasurface and control method thereof

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0031]The present invention designs and manufactures a dual-channel independently programmable metasurface. First, a metasurface unit that can independently regulate the reflection phase of x-polarized and y-polarized electromagnetic waves is carefully designed. The metasurface unit has a specially designed metal pattern, and integrates two varactors in the x-direction and y-direction respectively, and the capacitance of the varactors in the x-direction and y-direction can be independently adjusted through the two designed bias lines. value, and then complete the independent control of the reflection phase of the x-polarized and y-polarized electromagnetic waves. In order to obtain a dual programming metasurface and realize multiple complex electromagnetic functions, an array of n×n metasurface units is used. The metasurface array contains 2n independent cont...

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Abstract

The invention discloses a double-channel independent programmable metasurface and a control method thereof. The metasurface comprises a reflective double-channel programmable metasurface array, a control interface I and a control interface II, the reflective double-channel programmable metasurface array is formed by arranging a plurality of metasurface unit arrays, each row of metasurface units are connected in series, and each row of metasurface units are connected to each interface of the control interface I respectively; and each column of metasurface units are connected in series and thenare respectively connected to each interface of the control interface II. The control interface I and the control interface II are controlled by an expansion interface circuit and a voltage conversioncircuit to change the capacitance of the two varactors in the x direction and the y direction respectively, and x-polarized electromagnetic waves and y-polarized electromagnetic waves are independently controlled. According to the invention, two independent information transmission channels are provided in parallel, and the metasurface has an important application prospect in advanced devices andsystems such as a wave-based logic operation platform, a high-speed scanning radar, a multi-channel spatial light processor and the like.

Description

technical field [0001] The invention relates to a novel artificial electromagnetic material, in particular to a dual-channel independently programmable metasurface and a control method thereof. Background technique [0002] A metasurface is an ultra-thin platform composed of subwavelength artificial units arranged periodically or aperiodically in a two-dimensional plane, and it has demonstrated a powerful ability in regulating electromagnetic waves. In particular, dynamic metasurfaces can artificially and dynamically regulate electromagnetic waves under external control signals. Most of the existing dynamic metasurfaces are tunable metasurfaces and reconfigurable metasurfaces. Tunable metasurfaces can be fine-tuned, but have similar functions; reconfigurable metasurfaces can obtain significantly different functions, but the number of functions is limited. In order to realize the real-time regulation and switching of many different functions, Professor Cui Tiejun and others...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00H01Q15/24
CPCH01Q15/0086H01Q15/24
Inventor 蒋卫祥张信歌孙雅伦于千崔铁军
Owner SOUTHEAST UNIV
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