Figure 7: The particle swarm optimization for finding the optimal dimensions and distribution of ten basic meta-atoms. | Scientific Reports

Figure 7: The particle swarm optimization for finding the optimal dimensions and distribution of ten basic meta-atoms.

From: Ultra-wideband, Wide Angle and Polarization-insensitive Specular Reflection Reduction by Metasurface based on Parameter-adjustable Meta-Atoms

Figure 7

(a) The evolution plot of fitness. (b) The predicted scattering patterns in the main period of a part of optimization frequencies. (c) Ten optimal meta-atoms and its distribution. The side lengths (L1, L2, … L10) are 0.8 mm, 2.9 mm, 1.0811 mm, 2.3059 mm, 2.5833 mm, 2.9 mm, 1.6558 mm, 2.7846 mm, 0.8 mm and 2.9 mm in sequence.

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