The phase centre of Fabry-Pérot Cavity antennas radiating broadside pencil beams is studied adopting a leaky-wave model of their radiation mechanism. Different definitions are considered for the phase centre, both local, based on curvature properties of the equiphase surfaces in the far field, and global, based on the minimization of suitable functionals of the antenna phase pattern. Analytical formulas are derived for the phase-center location as a function of the relevant leaky-mode attenuation constant and are validated on specific examples of antennas. © 2012 IEEE.
Phase centre of Fabry-Pérot Cavity antennas: Leaky-wave model and analytical formulas / Burghignoli, Paolo. - STAMPA. - (2012), pp. 239-242. (Intervento presentato al convegno 6th European Conference on Antennas and Propagation, EuCAP 2012 tenutosi a Prague nel 26 March 2012 through 30 March 2012) [10.1109/eucap.2012.6206112].
Phase centre of Fabry-Pérot Cavity antennas: Leaky-wave model and analytical formulas
BURGHIGNOLI, Paolo
2012
Abstract
The phase centre of Fabry-Pérot Cavity antennas radiating broadside pencil beams is studied adopting a leaky-wave model of their radiation mechanism. Different definitions are considered for the phase centre, both local, based on curvature properties of the equiphase surfaces in the far field, and global, based on the minimization of suitable functionals of the antenna phase pattern. Analytical formulas are derived for the phase-center location as a function of the relevant leaky-mode attenuation constant and are validated on specific examples of antennas. © 2012 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
