NOVELTY - The aperture antenna (20) has a frequency selective structure arranged between a receiving element and a waveguide (22). Meta-material structures are partially extended inside receiving element and/or inside waveguide to propagate received radio signals from the receiving element to the waveguide. The received radio signals have frequencies within a predetermined sub-band of the given band of radio frequencies. The frequency selective structure reflects back the received radio signals that have frequencies not comprised in the predetermined sub-band into the receiving element. USE - Aperture antenna e.g. horn antenna, for reflector antenna system (claimed) used in satellite communications and radar system. ADVANTAGE - Offers low-noise aperture antenna. Does not require use of filter component used to eliminate out of band noise contributions.
Bilotti, F., Toscano, A., Ramaccia, A., Di Palma, L. (2012)Aperture antenna e.g. horn antenna, for reflector antenna system has frequency selective structure that reflects back received radio signals that have frequencies not comprised in predetermined sub-band into receiving element. . Brevetto No. US2013169500-A1 ; EP2613408-A1 ; JP2013141251-A ; EP2613408-A9 ; IT1409483-B.
Aperture antenna e.g. horn antenna, for reflector antenna system has frequency selective structure that reflects back received radio signals that have frequencies not comprised in predetermined sub-band into receiving element
TOSCANO, ALESSANDRO;
2012-01-01
Abstract
NOVELTY - The aperture antenna (20) has a frequency selective structure arranged between a receiving element and a waveguide (22). Meta-material structures are partially extended inside receiving element and/or inside waveguide to propagate received radio signals from the receiving element to the waveguide. The received radio signals have frequencies within a predetermined sub-band of the given band of radio frequencies. The frequency selective structure reflects back the received radio signals that have frequencies not comprised in the predetermined sub-band into the receiving element. USE - Aperture antenna e.g. horn antenna, for reflector antenna system (claimed) used in satellite communications and radar system. ADVANTAGE - Offers low-noise aperture antenna. Does not require use of filter component used to eliminate out of band noise contributions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
