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Geometry of the proposed FSS consisting of three arrays A, B, and C.
Illustration of a unit cell of the proposed FSS: (a) Perspective view of a unit cell; (b) side view of the proposed FSS along the OO′ plane; (c)–(e) front views of unit cells of arrays A, B, and C.
Photographs of the fabricated FSS: (a) 25 × 25 unit cells of the proposed FSS; (b)–(d) 2 × 2 unit cells of the fabricated arrays A, B, and C, respectively.
Measured and simulated results of the designed FSS under the normal incidence (p = 8.0 mm, w A = w C = 2.9 mm, d A = 2 mm, h = 7.187 mm, w B1 = 0.4 mm, w B2 = 5.0 mm, l B 1 = 2l B 2 = 5.5 mm, D = 0.6 mm, ε r1 = 3.55, d B = 0.813 mm, ε r2 = 2.2, d C = 0.508 mm).
Electric field and current distributions for the designed FSS at transmission-pole and transmission-zero frequencies: (a)–(d) electric field distributions; (e)–(h) surface current distributions.
Coupling scheme for the proposed 3D FSS.
Measured and simulated results of the fabricated FSS for TE and TM polarizations and oblique incident angles.
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