fig2

Figure 2. EAB maps of conduction-loss-dominated EWAMs as functions of electrical conductivity σ and the constant real permittivity k (ε_r' = k) with coating thicknesses of (A) 1.50, (B) 1.75, and (C) 2.00 mm, respectively. Three-dimensional maps of EABs as a function of ε_∞, ε_s-ε_∞, and τ for polarization-loss-dominated materials with coating thicknesses of (D) 1.50, (E) 1.75, and (F) 2.00 mm, respectively. Corresponding EAB distributions after introducing magnetic loss (μ_r' =1.2 and μ_r" = 0.2) with coating thicknesses of (G) 1.50, (H) 1.75, and (I) 2.00 mm, respectively. EAB: Effective absorption bandwidth; EWAM: electromagnetic wave absorbing material.