A grounded dielectric slab covered with a metal strip grating in the form of an infinite linear array of microstrip lines constitutes a canonical structure for the realization of a variety of microwave components and antennas, including artificially hard and soft surfaces. In this contribution we review some recent theoretical and numerical results concerning surface and leaky waves supported by this structure. Spectral properties of modes propagating at arbitrary angles in the plane of the strip grating are examined, in order to provide criteria for the correct study of modal evolution as a function of frequency or propagation angle. Numerical full-wave results are provided that illustrate some interesting and novel properties related to such modal evolutions.
Surface and leaky waves of a metal strip grating on a grounded slabs / Baccarelli, Paolo; Burghignoli, Paolo; Frezza, Fabrizio; Galli, Alessandro; Lampariello, Paolo; Lovat, Giampiero; Paulotto, Simone. - STAMPA. - unico:(2005), pp. 503-506. (Intervento presentato al convegno 18th International Conference on Applied Electromagnetics and Communications tenutosi a Dubrovnik, Croazia nel 12-14 ottobre 2005) [10.1109/ICECOM.2005.205023].
Surface and leaky waves of a metal strip grating on a grounded slabs
BACCARELLI, Paolo;BURGHIGNOLI, Paolo;FREZZA, Fabrizio;GALLI, Alessandro;LAMPARIELLO, Paolo;LOVAT, GIAMPIERO;PAULOTTO, Simone
2005
Abstract
A grounded dielectric slab covered with a metal strip grating in the form of an infinite linear array of microstrip lines constitutes a canonical structure for the realization of a variety of microwave components and antennas, including artificially hard and soft surfaces. In this contribution we review some recent theoretical and numerical results concerning surface and leaky waves supported by this structure. Spectral properties of modes propagating at arbitrary angles in the plane of the strip grating are examined, in order to provide criteria for the correct study of modal evolution as a function of frequency or propagation angle. Numerical full-wave results are provided that illustrate some interesting and novel properties related to such modal evolutions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
