High-performance wave-absorbing structure with double impedance layers

The invention relates to the technical field of electromagnetic modulation wave-absorbing structures, and discloses a double-impedance-layer high-performance wave-absorbing structure which comprises a wave-absorbing structure body. The wave absorbing structure body sequentially comprises a dielectric metasurface I, a supporting dielectric layer I, an impedance type metasurface I, a dielectric metasurface II, a supporting dielectric layer II, an impedance type metasurface II, a dielectric metasurface III, a supporting dielectric layer III and a metal back plate from top to bottom, and a conductive unit of the impedance type metasurface I comprises a special-shaped conductive square ring I; a first resistor is arranged on the first special-shaped conductive square ring, the conductive unit of the second impedance type metasurface comprises a second special-shaped conductive square ring, and a second resistor is arranged on the second special-shaped conductive square ring. According to the double-impedance-layer