Journal: Nanophotonics
Article Title: W-band frequency selective digital metasurface using active learning-based binary optimization
doi: 10.1515/nanoph-2024-0628
Figure Lengend Snippet: Electromagnetic analysis of the optimized pixel configuration of digital metasurfaces. (a and b) The calculated surface impedance ( Z s ) of the digital metasurfaces for (a) Bandpass 1 and (b) Bandpass 2 as a function of W-band frequencies. (c) The calculated surface current density distribution at the digital air/metasurface/substrate interface for the Bandpass 1 configuration at normal incidence ( θ = 0°) of E x polarization at 80 GHz. The right panel is a magnification of the square zone highlighted by the red-dotted line in the left panel. The color indicates the magnitude of the normalized surface current density on a logarithmic scale, and the black arrows represent the direction of the surface current density.
Article Snippet: These FOM values, representing the performance of each digitized metasurface configuration, were computed through finite element method (FEM)-based electromagnetic simulations using commercial software (CST Studio Suite, Simulia).
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