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Review Article

Space-Time-Coding Digital Metasurfaces: Principles and Applications

Figure 3

Scattering control via STC digital metasurfaces. Reproduced from [110]. (a) An optimized 2D space-coding matrix and a 3D STC matrix for RCS reduction. (b) The corresponding scattering patterns at various frequencies. (c) Maxima of the scattering patterns from the -50th to the +50th harmonic frequencies, corresponding to the 3D STC matrix in (a).