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

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Cloak</td><td class="align_center">Rotator</td><td class="align_center">Concentrator</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left"><i>A</i></td><td class="align_center">−278.083</td><td class="align_center">1784.88</td><td class="align_center">−231.736</td></tr><tr><td class="align_left"><i>B</i></td><td class="align_center">134.789</td><td class="align_center">−834.249</td><td class="align_center">182.928</td></tr><tr><td class="align_left"><i>C</i></td><td class="align_center">−19.00</td><td class="align_center">115.533</td><td class="align_center">−45.500</td></tr><tr><td class="align_left"><i>D</i></td><td class="align_center">0.83093</td><td class="align_center">−4.00</td><td class="align_center">3.73918</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Coefficients of third-order polynomial functions.</div>

International Journal of Antennas and Propagation

tab1

Table 1

Table 1: Reduction of FDTD Stair-Casing Error regarding to Metamaterials by Using High-Order Polynomial Transformation Functions 