Electromagnetic Reciprocal Cloak with Only Axial Material Parameter Spatially Variant

Figure 2

Constitutive parameters distribution along radial direction of the reciprocal cloak. (a) The complementary layer (𝑎<𝑟^′<𝑏). (b) The recovering layer (𝑏<𝑟^′′<𝑐).

(a)

(b)