Reduction of FDTD Stair-Casing Error regarding to Metamaterials by Using High-Order Polynomial Transformation Functions

Figure 9

FDTD snapshots with the use of linear functions: (a) the cloak, (b) the rotator, and (c) the concentrator. The red dotted circles indicate the location of stair-casing error.

(a)

(b)

(c)