Figure 9
From: Switchable edge-line coupler based on parity time-reversal duality symmetry

Layout of 4-ports PTD-Symmetric ELC by using grounded-coplanar waveguide to a substrate-integrated waveguide transition.
From: Switchable edge-line coupler based on parity time-reversal duality symmetry

Layout of 4-ports PTD-Symmetric ELC by using grounded-coplanar waveguide to a substrate-integrated waveguide transition.