Double-dipolar artificial dielectrics as radiofrequency absorbing materials (Articolo in rivista)

Type
Label
  • Double-dipolar artificial dielectrics as radiofrequency absorbing materials (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • R.Olmi; M.Bini; C.Riminesi; G.Pelosi (2005)
    Double-dipolar artificial dielectrics as radiofrequency absorbing materials
    in Atti della Fondazione Giorgio Ronchi (1976)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • R.Olmi; M.Bini; C.Riminesi; G.Pelosi (literal)
Pagina inizio
  • 235 (literal)
Pagina fine
  • 242 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 1-2 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Misura e modellistica delle caratteristiche dielettriche di materiali costituenti i beni culturali (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IFAC-CNR Dip. Elettronica e Telecomunicazioni, UNIFI (literal)
Titolo
  • Double-dipolar artificial dielectrics as radiofrequency absorbing materials (literal)
Abstract
  • An arti/icial dielectric consisting o/ a bidimensional lattice o/ electric and magnetic minimum scattering antennas is proposed. The lattice can be geometrically arranged t'n severa! ways, /or example as a Yee-like celi where a repeated structure is realized with a matched magnetic loop placed at the center of /our matched electric dipoles occupying the corners of a rectangle. Such a planar array can be designed to constitute a virtually per/ect absorber /or à monochromatic wave t'mpinging at norma! incidence. The arti/icial dielectric is studied by means o/ a mt'xed microscopt'c/macroscopic approach allowing to compute the equivalent permitti'vity and permeability o/ the metamaterial automatically taking into account dipole-dt'pole interactions. It is demonstrated /or a dilute double-dipolar medium that both permittivity and permeability bave a unitary real part and imaginary parts such to allow a full absorption of the impinging electromagnetic power. The dependence o/ the absorbed electromagnetic power on the lattice geometry is investigated in terms o/ the ratio between the total power t'nddent on a given surface o/ the dielectric and that absorbed by it, showing that an interval o/ lattice spacings is available where that ratio is close to one. (literal)
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