Polarized rotating metasurface and application thereof in antenna RCS reduction

• Main Authors: FU YANGHUI, HU WENHAO, DAI XIWANG, TANG NINGQI, ZHOU TAO, LUO GUOQING
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The invention relates to a polarization rotation metasurface and application thereof in antenna RCS reduction, the polarization rotation metasurface comprises a metasurface structure, a dielectric substrate and a metal floor, the metasurface structure is formed by arranging four metasurface modules in a chessboard mode, each metasurface module is formed by periodically arranging 5 * 5 metasurface units, and the metasurface units are arranged in a chessboard mode. Each metasurface unit is composed of L-shaped metal patches distributed diagonally, the L-shaped metal patch structure adopts a folding technology to achieve the effect of reducing the size, miniaturization of the metasurface units is facilitated, due to the structural characteristics of the L-shaped metal patches, the L-shaped metal patches can have different hindering effects on reflected current, the effect of polarization rotation by 90 degrees is achieved, and the metasurface units can be used for polarization rotation by 90 degrees. According t