Field Enhancement in a Grounded Dielectric Slab by Using a Single Superstrate Layer

Figure 3

Enhancement factor contour plots as functions of the superstrate’s relative dielectric permittivity 𝜖_𝑟2 and relative magnetic permeability 𝜇_𝑟2 for 𝑓₀=300THz, 𝑤₁=𝜆₀, 𝐿=0.5𝜆₀, 𝜖_𝑟1=50−5𝑗, 𝜒=0.1𝜆₀ with (a) 𝑤₂=0.1𝜆₀ and (b) 𝑤₂=0.4𝜆₀.

(a)

(b)