Reflective programmable metasurface for realizing wave beam scanning in ka waveband

A beam-scanning, reflective technology, applied in the field of reflective programmable metasurfaces, can solve problems such as complex hardware and software algorithms, and achieve the effects of improving channel capacity and signal coverage, easy integration, and low cost

Inactive Publication Date: 2019-11-01
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, MIMO systems require transceivers for each antenna, which leads to complex hardware implementation and software algorithms

Method used

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  • Reflective programmable metasurface for realizing wave beam scanning in ka waveband
  • Reflective programmable metasurface for realizing wave beam scanning in ka waveband
  • Reflective programmable metasurface for realizing wave beam scanning in ka waveband

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Embodiment

[0037] Such as figure 1 As shown, the basic unit structure of the present invention is given. The basic unit structure includes a first metal layer 1, a first dielectric layer 2, a second metal layer 3, an adhesive sheet layer 4, and a second metal layer, which are sequentially arranged from top to bottom. Two dielectric layers 5 and feed layers 6, the basic unit period p=5mm, the thickness of the first dielectric layer and the second dielectric layer are h1 and h3, the thickness of the adhesive layer is h2, the metal layer and the feed layer The thickness is 0.018mm, and both plates are made of copper. In order to meet the requirements of 28GHz frequency figure 2 with image 3 The resonance characteristics shown in the design and optimization are as follows figure 1 As shown in the first metal layer structure, a diode is welded into the first metal layer, the model is MACOM MADP-000907-14020, and then the voltage is changed on the feed layer, thereby changing the voltage across...

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Abstract

The invention discloses a reflective programmable metasurface for realizing wave beam scanning in ka waveband. The programmable metasurface is composed of 20 * 20 basic unit structures, and the basicunit structures are shown in figure 1. The size of the whole metasurface is small, and the miniaturization can be realized. The digital codes of the metasurface are obtained by designing different beam deflection angles, and then the state of each basic unit structure is controlled. The beam pointing at different angles is achieved. Therefore, the purpose of beam scanning is achieved. The reflective programmable metasurface is simple to manufacture, easy to integrate, low in cost and small in size, and can be directly used in a millimeter wave communication system.

Description

Technical field [0001] The invention is a reflective programmable supersurface applied to the Ka wave band to realize beam scanning, and belongs to the field of antennas and new artificial electromagnetic materials. Background technique [0002] A new type of artificial electromagnetic material is an artificial structure with sub-wavelength characteristics. A specific equivalent dielectric constant and equivalent permeability are achieved by artificially designing a unit structure, so many unnatural characteristics can be obtained and multiple electromagnetic functions can be achieved. Metasurface is a two-dimensional new artificial electromagnetic material, which has attracted wide attention due to its low cost, simple production, and flexibility to control electromagnetic waves. In recent years, programmable metasurfaces have been proposed for dynamic manipulation of electromagnetic waves, showing an attractive mechanism for wireless communication beamforming. Programmable met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/0086
Inventor 崔铁军万向肖强张颖哲
Owner SOUTHEAST UNIV
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