Vortexlike Power Flow at the Interfaces of Metamaterial Lens

The metamaterial lens with DPS/DNS/DPS structure has been realized by using the two-dimensional (2D) isotropic transmission line approach. We studied the vortexlike power flow at the interfaces of metamaterial lens and validated by the finite-difference time-domain (FDTD) simulator. The computational results showing its different conditions near DPS/DNS and other kinds of interfaces are obtained by CST STUDIO SUITE at different frequencies, and demonstrate the intuitionistic power location at the metamaterial lens interfaces.