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(a) The element “0” with an angle of 45° to the x-axis; (b) the element “1” rotated 90° counterclockwise about the z-axis; (c) the side view of the basic unit; (d) the reflection coefficient of elements “0” and “1” under normal x- and y-polarized incidence; (e) the reflection phase of cross-polarized wave; (f) the linear polarization conversion ratio of x- and y-polarized wave; (g) cross-polarization reflection phase difference of elements “0” and “1”.
