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Figure 5.


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Frequency evolution of the x-component of the real (solid line) and imaginary part (dashed line) wave vector of a TM surface wave which propagates along a fakir’s bed of nails with length L = 4.75 mm, separation distance of a = 2.38 mm and host dielectric permittivity of εr = 2.2. Insets: Bottom: Fakir’s bed of nails analyzed. Top: Metaradome placed on top of one antenna element. Dimensions: D = 19 mm; d = 0.4 mm; h1 = 3.175 mm; h2 = 1.575 mm.

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