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. 2017 May 26;4(9):1700098. doi: 10.1002/advs.201700098

Figure 3.

Figure 3

The 1‐bit and 2‐bit coding patterns of the frequency coding metamaterials. a) The pattern with 1‐bit frequency digital sequence of “0–0,” “0–1,” “0–0,” and “0–1” . b) The pattern with 1‐bit frequency digital sequence of “0–0,” “0–1,” “0–0,” “0–1”/“0–1,” “0–0,” “0–1,” and “0–0”. c) The pattern with 2‐bit frequency digital sequence of “00–00,” “00–01,” “00–10,” and “00–11”. d) The pattern with the optimized 2‐bit frequency digital sequence. e) The pattern with 2‐bit frequency digital sequence of “00–00,” “00–01,” “00–10,” and “00–11” for a period.