Figure 3

Schematic of the unit cell of the multi-layered linear converter.
Parameters of the SRR array and the spacer are the same as that in Fig. 1. (a) Front view of the structure, (b) geometry of cut-wire in the middle layer, (c) perspective view of the structure, (d) bottom metallic layer and (e) right side of structure. Dimension (mm): p = 7.5, a = 5, w = 1.8, g = 1, l = 7, b = 3 and t = 2.