Leonardo Corporation

Giorgio Isella

Angelo Aprile

Eleonora Troysi

Giovanni Vertemati

Alfonso Breglia

Ersilio Vannicola

Dario Meledandri

Alessandro Montanari

The invention concerns an active electronically steerable antenna including: a planar or quasi-planar radiating array configured to transmit and/or receive radiofrequency or microwave signals, and a plurality of three-dimensional U-shaped modules, each arranged behind, and coupled to, a respective planar or quasi-planar radiating subarray of N radiating elements arranged in two rows or columns, each of N/2 radiating elements, N being an even integer. Each three-dimensional U-shaped module comprises: a respective base wall; two respective side walls that are orthogonally arranged with respect to the respective base wall so as to form therewith a respective three-dimensional U-shaped structure, and are arranged, each, behind a respective row or column of N/2 radiating elements of the respective planar or quasi-planar radiating subarray; and respective transmit and/or receive electronics distributed on said respective base and side walls and configured to implement N respective transmit and/or receive modules. For each three-dimensional U-shaped module, the respective transmit and/or receive electronics includes: for each respective side wall, N/2 respective transmission and/or reception front-end modules that are mounted on said respective side wall, are coupled to the N/2 radiating elements of the respective row or column of the respective planar or quasi-planar radiating subarray, and are configured to implement power amplifiers, low noise amplifiers, and switches or circulators; and respective base wall electronics mounted on the respective base wall, connected to the N respective transmission and/or reception front-end modules and configured to carry out beam steering functions including signal phase-shifting, and attenuation and/or amplification functions.

Innovative three-dimensional U-shaped architecture for transmit/receive modules of AESA systems

A Multi-Beam on Receive Electronically Steerable Antenna comprising a Tx array comprising a phased array of Tx antenna elements and having a geometric aperture with one or more pairs of parallel opposite sides; and an Rx array comprising a phased array of Rx antenna elements and having a geometric aperture with one or more pairs of parallel opposite sides. One or more pairs of parallel opposite sides of the geometric aperture of the Tx array are inclined relative to one or more pairs of parallel opposite sides of the geometric aperture of the Rx array.

Multi-beam on receive electronically-steerable antenna

Growing community of inventors

Pomezia, Italy

Giorgio Isella