Table 1.

Description of the design parameters of the unit cells shown in Figure 1 and Figure 4.

Parameter	Description
A 1	Length of the first stadium-shaped hole.
A 2	Length of the second stadium-shaped hole.
B 1	Width of the first stadium-shaped hole.
B 2	Width of the second stadium-shaped hole.
θ 1	Tilt angle of the first stadium-shaped hole with respect to −y-axis.
θ 2	Tilt angle of the second stadium-shaped hole with respect to y-axis.
h	Depth of stadium-shaped holes.
p	Total length of the unit cell. The periodicity for the generic case.
d	Displacement along x-axis of the upper half with respect to the lower half of the unit cell.
W	Width of the rectangular waveguide in which the holes are drilled.
H	Height of the rectangular waveguide in which the holes are drilled.