Broadband dual-polarization electromagnetic wave absorber under extreme incident angle and design method thereof

The invention discloses a broadband dual-polarization electromagnetic wave absorber under an extreme incident angle and a design method thereof, the broadband dual-polarization electromagnetic wave absorber comprises a plurality of wave absorbing structure units arranged in a rectangular period, each wave absorbing structure unit comprises a rectangular dielectric plate, a resonant structure arranged on the upper surface of the dielectric plate, and a metal plate arranged below the dielectric plate, a gap exists between the dielectric plate and the metal plate; the resonant structure comprises two same rectangular metal patches, a rectangular metal ring and lumped resistance elements embedded in the midpoints of four sides, and the two rectangular metal patches are located in the rectangular metal ring; when the incident angle is 75 degrees and TE and TM dual-polarized electromagnetic waves with the working frequency band within 5.34-10.24 GHz are incident, the high-efficiency absorption performance can be sh