Ultra-wideband low-profile metamaterial wave absorber based on resistive film

• Main Authors: LEE SE-EUN, WANG YUE, YANG MENGZHEN, QIU SHUANG, HU YANJUN
• Format: Patent
• Language: Chinese; English
• Published: 10.10.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The invention discloses an ultra-wideband low-profile metamaterial wave absorber based on a resistive film, and belongs to the technical field of electromagnetic metamaterials. Comprising a plurality of periodic structure units. Comprising a plurality of arrays formed by extending periodic structure units in the plane direction, each periodic structure unit is formed by stacking a metal layer arranged at the bottom and three resistive film-medium composite layers, each resistive film-medium composite layer comprises a PET substrate and a PMI foam layer which are arranged up and down, and a resistive film of a certain structure is printed on the PET substrate; each resistive film surface structure layer is formed by embedding a central substructure and a four-quadrant region substructure; the central substructure is a large square ring-shaped resistive film positioned in the center of the periodic structure unit; the four-quadrant area substructures are four small square annular resistance diaphragms located i