Table 4 Extracted data for the proposed unit cell.

From: Symmetric resonator based tunable epsilon negative near zero index metamaterial with high effective medium ratio for multiband wireless applications

Parameter

Frequency range (GHz)

Extracted property

Permittivity, ϵ

4.22–5.47, 10.14–11.89, 13.15–13.65, 17.14–17.36

ϵ < 0

Permeability, μ

3.89–4.50, 9.37–10.80, 13.03–13.30, 16.97–17.26

μ ~ 0

Refractive index, n

4.23–5.37, 10.17–11.80, 13.17–13.51, 17.09–17.31

n < 0

Normalized impedance, z

4.23–5.386, 9.22–11.84, 13.08–13.51, 17.01–17.33

z ~ 0

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