Distribution of the magnetic field for the lowest three order modes [(a1) , (b1) , and (c1) ] of Mie resonances over the unit cell of an ADM and corresponding vector fields of the electric field [(a2) , (b2) , and (c2) ]. This metamaterial consists of high permittivity cylinders periodically arranged in a square array. The square cross section of the constitutive cylinder is plotted. The electric vector fields point out the displacement currents which are collinear and are along loops. Surface charge density areas are shown with related sign on electric vector fields. They are located at the boundaries where the electric field possesses normal components and they induce electric moments.
Permittivity (top) and permeability (bottom) of an ADM extracted from simulations of -parameters. The metamaterial is made of square cross section cylinders, whose permittivity is . The effective permittivity issued from the second mode of Mie resonances is set around 10 GHz.
Photograph of the metamaterial inside the microwave waveguide.
Retrieved permittivity (top) and permeability (bottom) from measured -parameters of a one layer ADM made of one set of square cross section BST/Mn rods inserted in a polymer matrix. The permittivity of the rods is . The effective permittivity issued from the second mode of Mie resonances has a Lorentzian-like shape and is centered at 10.5GHz.
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