Broadband switching nonlinear metamaterial

In this presentation, we introduce a nonlinear metamaterial capable of transitioning between a broadband reflective and broadband transparent state depending on the incident power level. Below the activation voltage, broadband reflectivity is created by forbidding propagation through the metamaterial as a result of the effective permittivity and permeability having different signs. Above the activation voltage, reflection is suppressed by matching the effective permittivity and permeability. Full-wave simulations are performed to analyze the electromagnetic characteristics of the structure. These simulations demonstrate a 10 dB reduction in reflected amplitude over a 24.4% fractional bandwidth and a maximum difference in reflection of more than 30 dB.