Figure 6
From: Switchable edge-line coupler based on parity time-reversal duality symmetry
(a) Switchable coupler realized by using 2x2 mushroom unit cells in the central part both on the top and the bottom walls; (b), (c) two different configurations of the pin-diodes (d) Simulated Scattering parameters obtained by using HFSS30 for the two configurations: (b) solid lines (c) dotted lines.The full wave analysis includes the waveguide ports, as shown in (a).
