Broadband polarization insensitive meta-material wave absorber

[0028] Specific implementation mode one: refer to figure 2 , image 3 and Figure 4 Describe this embodiment in detail, a kind of broadband polarization insensitive metamaterial absorber described in this embodiment, the absorber is a periodic structure, and the absorber of a unit includes: a resonant structure, a dielectric plate 3 and copper foil 4;

[0029] The resonant structure includes: a split resonator ring 1 and a metal sheet 2;

[0030] The split resonant ring 1 and the metal sheet 2 are both rectangular, the opening of the split resonant ring 1 is located in the middle of one side of the rectangular ring, and the opening width is between 0.1 mm and 3.6 mm;

[0031] The metal sheet 2 is located in the ring of the split resonant ring 1, the edge of the metal sheet 2 is parallel to the edge of the split resonant ring 1, and the gap between the metal sheet 2 and the split resonant ring 1 is between 0.8mm and 1.2mm;

[0032] The resonant structure is fixed on one si...

[0033] Embodiment 2: This embodiment is a further description of the broadband polarization-insensitive metamaterial absorber described in Embodiment 1. In this embodiment, the metal sheet 2 is a copper sheet.

[0034] Specific embodiment three: This embodiment is a further description of a broadband polarization-insensitive metamaterial absorber described in specific embodiment one or two. In this embodiment, the thickness of the metal sheet is 0.03mm .