META 2021, META'12

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Thick metallic slabs with axially inhomogeneous holes in the hybrid transmission regime
Andriy E Serebryannikov

Last modified: 2012-01-02

Abstract


A comparative study of transmission through thick metallic structures of several types that contain arrays of the holes, whose cross section is assumed to be piecewise constant, is carried out. In the studied structures, the cross section is variable so that the evanescent-wave and propagating-wave regimes may co-exist within the neighboring sections of a waveguide (hole) that connects the slab interfaces. It is shown that high transmittance can be obtained in these structures even if the evanescent-wave sections occupy the most part of the waveguide length.

Keywords


subwavelength aperture; metamaterial