Figure 5
From: A novel EM concentrator with open-concentrator region based on multi-folded transformation optics
Scheme illustration of the proposed open-coating bi-functional device that first rotates and then concentrates the EM waves at the same time while the concentrator region is not fully enclosed with the coating materials. In the first step, the proposed bi-functional device is achieved by combining the first step of both Fig. 1 and Fig. 3, distinguished by the red lines boundaries. For second step, Fig. 3 (second step) has been recalled to make the proposed device open.
