Patent · US Active

Dual-mode orbital angular momentum (OAM) base cell array and metasurface preparation method

US11962088B2 · kind B2 · utility

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18Claims
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Key dates

Filing dateJun 14, 2022
Grant dateApr 16, 2024
Priority date—
Expiry dateOct 28, 2042

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01Q1/50
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

The present disclosure provides a dual-mode orbital angular momentum (OAM) convergence base cell array and metasurface preparation method. The base cell array includes 2n(2n−1) anisotropic cell structures and 2n isotropic cell structures. Each of the anisotropic cell structures includes a bottom ground layer, a dielectric substrate layer and a top pattern layer which are disposed in sequence from bottom to top, where each top pattern layer has an axisymmetric H-shaped structure. Each of the isotropic cell structures includes a bottom ground layer, a dielectric substrate layer and a top pattern layer which are disposed in sequence from bottom to top, where each top pattern layer has a square structure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.