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(a) Simulated absorption spectra of the MMAs consisting of pyramids with p = 1.36λ: big pyramid arrays half (I) and full filling (II) “white blanks” of a chessboard, small pyramid arrays full filling “black blanks” of a chessboard (III). (b) Normalized electric field distribution of structure II at 17 GHz: (left up) cross section along xz plane, (left down) cross section along yz plane and (right) central cross section of the 6th layer.
