In this paper, sub-wavelength reflection/transmission resonances are studied in a metamate-rial formed by paired arrays of metallic grids connected by vias. The analysis is based on the non-local homogenization model, which takes into account spatial dispersion effects and ad-ditional boundary conditions. It is observed that sub-wavelength resonances of complete transmission occur below and above the plasma frequency of the wire medium, which, in turn, are related to proper complex (backward) and improper complex (forward) leaky waves of the corresponding mushroom structure.
Baccarelli, P. (2009). Sub-wavelength resonances in mushroom-type surfaces in connection with leaky waves. In Proceedings Metamaterials 2009 (pp.348-350).
Sub-wavelength resonances in mushroom-type surfaces in connection with leaky waves
BACCARELLI, PAOLO
2009-01-01
Abstract
In this paper, sub-wavelength reflection/transmission resonances are studied in a metamate-rial formed by paired arrays of metallic grids connected by vias. The analysis is based on the non-local homogenization model, which takes into account spatial dispersion effects and ad-ditional boundary conditions. It is observed that sub-wavelength resonances of complete transmission occur below and above the plasma frequency of the wire medium, which, in turn, are related to proper complex (backward) and improper complex (forward) leaky waves of the corresponding mushroom structure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
