Fig. 3


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Simulated structures in the study of polar glide symmetry. Studied structures: (a) purely periodic, (b) 2-fold twist, (c) polar glide, and (d) twisted polar glide symmetry; (e) Dispersion diagram using the dimensions: β = 180, r pi  = 2.3 mm, r po  = 1.08 mm, l p  = 1 mm, r i  = 1 mm, r o  = 2.5 mm, and p = 6 mm.

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