We propose a novel microstrip leaky-wave antenna, based on a multiple-ring ('bull-eye') structure, with a high radiation efficiency and reduced edge-diffraction effects. Such favorable properties are achieved by properly choosing the relevant physical and geometrical parameters in order to operate the antenna in a frequency range in which no surface wave may propagate and the only physical leaky wave is the fundamental TM0 mode. A directive conical radiation pattern, frequency-scannable in a wide angular region, is thereby achieved. Numerical results on dispersion properties of the involved TM and TE modes and full-wave simulations of representative structures are provided to demonstrate the feasibility of the proposed design.
A novel printed leaky-wave ‘Bull-Eye’ antenna with suppressed surface-wave excitation / Baccarelli, Paolo; Burghignoli, Paolo; Lovat, Giampiero; Paulotto, Simone. - STAMPA. - (2004), pp. 1078-1081. (Intervento presentato al convegno 2004 IEEE AP-S International Symposium on Antennas and Propagation tenutosi a Monterey, CA, USA nel 20-26 giugno 2004) [10.1109/APS.2004.1329861].
A novel printed leaky-wave ‘Bull-Eye’ antenna with suppressed surface-wave excitation
BACCARELLI, Paolo;BURGHIGNOLI, Paolo;LOVAT, GIAMPIERO;PAULOTTO, Simone
2004
Abstract
We propose a novel microstrip leaky-wave antenna, based on a multiple-ring ('bull-eye') structure, with a high radiation efficiency and reduced edge-diffraction effects. Such favorable properties are achieved by properly choosing the relevant physical and geometrical parameters in order to operate the antenna in a frequency range in which no surface wave may propagate and the only physical leaky wave is the fundamental TM0 mode. A directive conical radiation pattern, frequency-scannable in a wide angular region, is thereby achieved. Numerical results on dispersion properties of the involved TM and TE modes and full-wave simulations of representative structures are provided to demonstrate the feasibility of the proposed design.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
