Università La Sapienza di Roma, Facoltà di Ingegneria Civile e Industriale
via Eudossiana 18
26-29 aprile 2017
The Course offers lectures on different concepts, realizations, and applications of Leaky Waves and Periodic Structures.
General features and applications. Fields of a leaky-wave source, leaky waves in open structures. Characterization of leaky-wave antennas: determination of the phase and attenuation constants, relation to the radiation properties. Mechanisms employed to produce leakage: apertures, asymmetries, use of suitable modes. Interaction of inhomogeneous plane waves with lossy media.
Periodic Structures. Scanning behavior, phased arrays of leaky-wave line sources, unit-cell approach.
Transverse equivalent networks, aperture admittance, transverse-resonance technique.
Radiation-pattern shaping, aperture distribution: tapering procedures for leaky-wave antennas.
Examples of practical antennas: partially-open metallic waveguides, dielectric structures, printed lines. Feed, losses, manufacture issues. Measurement techniques.