Transparent Low-scattering Metamaterial Absorber for Solar Arrays

In this paper, a metamaterial absorber with simultaneous high optical transparency and broadband microwave absorption is presented. By tailoring the reflection response of meta-atoms, 80% absorption performance from 6.8GHz to 18GHz is achieved. In the meantime, by employing transparent substrates, including indium tin oxide and anti-reflection glass, a maximum of 87% light transmittance is obtained. The absorptivity of the proposed metamaterial absorber is simulated and measured experimentally. Both results demonstrate highly consistence which verifies the reliability of our design for use in solar arrays.