A Rasorber Metasurface Design: S-band Transmission and X-band Absorption

This paper presents a design method for S-band transmission and X-band absorption rasorber metasurface. This absorption is achieved by loading a lumped element in the metasurface. According to the simulation results, the designed structure has a transmittance of more than 80% in 0 ∼ 2.6 GHz and absorption rate of 80% in 8 ~ 14 GHz, the maximum absorption rate is more than 90% in 9 ∼ 14 GHz, the metasurface will have great application value in the stealth field. And its structure is simple, weight is light and easy to fabricate.