Full-Coverage Radar Antenna

In the work at hand, we contribute a system study of a full-coverage antenna array for applications ranging from wireless communication base station transceivers to aerospace applications. There are two main objectives in the road toward achieving active, electronically scanned array antennas: the passage from mechanical to electronic steering and the subsequent accommodation of a large number of simultaneously active, independent beams and respective Tx-Rx chains. The first objective comes with the unwanted introduction of scanning losses, which degrade the system’s performance. This problem is solved in the current work by employing a toroidal array antenna and scanning the beam by exploiting the double curvature of the host surface. Furthermore, the second issue, of signal path routing complexity, is also resolved by the contributed 2D, hierarchical (exhibiting both horizontal and vertical organization) beam-forming network. The stated results successfully validate our contribution.