Figure 5.

Simulated scattering patterns for 2‐bit frequency coding metamaterials. a–d) The far‐field scattering patterns of the metamaterial encoded with 2‐bit frequency digital sequence of “00–00,” “00–01,” “00–10,” and “00–11” at 6, 7.5, 9, and 10.5 GHz, respectively. e–h) The far‐field scattering pattern of the metamaterial encoded with an optimized 2‐bit frequency digital sequence at 6, 7.5, 9, and 10.5 GHz, respectively.