Flexible transparent broadband wave absorber and absorption characteristic customization method thereof

Abstract

The invention discloses a flexible and transparent broadband wave absorber and an absorption characteristic customization method thereof, and belongs to the field of microwave devices. The wave absorber comprises a patterned indium tin oxide patch, a polyethylene glycol terephthalate dielectric layer and an indium tin oxide backboard from top to bottom. The patterned indium tin oxide patch comprises a plurality of regular hexagonal subunits, the number of the subunits depends on actual requirements, and each subunit is a metasurface array formed by a plurality of triangular patches. The constructed flexible and transparent broadband wave absorber can meet wave absorbing requirements of different specific wave bands, design efficiency and wave absorbing performance are improved, more flexible and effective metasurface design can be achieved by designing parametric variables of the metasurface structure through the particle swarm optimization, and the wave absorbing performance of the metasurface structure is improved. More possibilities are brought to the application of the transparent flexible metasurface in the aspect of broadband absorption characteristics, and the performance of the transparent flexible metasurface is improved.

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