Figure 1

Schematic of the anchor-shaped unit cell.
(a) The yellow parts are metal (modeled as copper) and the grey part is the 3mm-thick substrate. (b) Specific illustration of the anchor-shaped unit cell, in which O1and O2bear a distance of 0.6 mm along the v-axis. The angle of the transformed V-shaped resonator is θ, which is not labeled in the figure. (This figure was drawn by Jia Yuan Yin)