A printed annular metasurface (PAM) consisting of suitably designed concentric ring slots etched in a metal screen is proposed to realize two-dimensional leaky-wave antennas (LWAs) operating on a pair of azimuthally independent TM and TE cylindrical leaky modes. The metasurface, used as a superstrate for a grounded dielectric slab, is designed to obtain the desired wavenumbers for the two leaky modes. These are excited independently by means of a vertical coaxial probe and a horizontal microstrip loop, thus allowing for radiation of an omnidirectional conical beam with given beam angle and polarization. Theoretical and numerical investigations are presented, including an ad-hoc moment-method approach for the calculation of the antenna far-field patterns.
Printed annular metasurface for omnidirectional dual-pol leaky-wave antennas / Baccarelli, Paolo; Burghignoli, Paolo; Comite, Davide; DI RUSCIO, David; Galli, Alessandro; Lampariello, Paolo; D. R., Jackson. - ELETTRONICO. - (2013), pp. 1059-1062. (Intervento presentato al convegno 43rd European Microwave Conference 2013 tenutosi a Nuremberg, Germany nel 6-11 ottobre 2013).
Printed annular metasurface for omnidirectional dual-pol leaky-wave antennas
BACCARELLI, Paolo;BURGHIGNOLI, Paolo;COMITE, DAVIDE;DI RUSCIO, DAVID;GALLI, Alessandro;LAMPARIELLO, Paolo;
2013
Abstract
A printed annular metasurface (PAM) consisting of suitably designed concentric ring slots etched in a metal screen is proposed to realize two-dimensional leaky-wave antennas (LWAs) operating on a pair of azimuthally independent TM and TE cylindrical leaky modes. The metasurface, used as a superstrate for a grounded dielectric slab, is designed to obtain the desired wavenumbers for the two leaky modes. These are excited independently by means of a vertical coaxial probe and a horizontal microstrip loop, thus allowing for radiation of an omnidirectional conical beam with given beam angle and polarization. Theoretical and numerical investigations are presented, including an ad-hoc moment-method approach for the calculation of the antenna far-field patterns.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
