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A dual-channel independently programmable metasurface and its control method

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

Active Publication Date: 2021-12-24
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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  • A dual-channel independently programmable metasurface and its control method
  • A dual-channel independently programmable metasurface and its control method
  • A dual-channel independently programmable metasurface and its control method

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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 dual-channel independently programmable metasurface and a control method thereof. The metasurface includes a reflective dual-channel programmable metasurface array, a control interface I, and a control interface II. The reflective dual-channel programmable metasurface array consists of A plurality of metasurface unit arrays are arranged, and each row of metasurface units is connected in series, and each row of metasurface units is respectively connected to each interface of the control interface 1; each column of metasurface units is connected in series, and each column of metasurface units is then respectively connected to Each interface of the control interface II. By expanding the interface circuit and the voltage conversion circuit to control the control interface I and the control interface II to change the capacitance of the two varactor diodes in the x and y directions respectively, the x-polarized and y-polarized electromagnetic waves are independently controlled. The invention realizes parallel provision of two mutually independent information transmission channels, and has important application prospects in advanced devices and systems such as wave-based logic operation platforms, high-speed scanning radars, and multi-channel spatial light processors.

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 Patents(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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