Orthogonality in multibeam antennas is revisited. The difference between orthogonal
beamforming and zero-forced beamforming is highlighted. The intriguing relation between …

With reference to the mask-constrained power synthesis of shaped beams, we extend the
spectral factorization method to both uniformly and nonuniformly spaced linear arrays …

The paper describes a deterministic algorithm based on simple analytical equations for
designing planar circular sparse array antennas where the positions and the dimensions of …

The synthesis of electrically large, aperiodic planar arrays with equi-amplitude excitations
plays an increasingly relevant role in satellite applications. Unfortunately, for such a kind of …

Non-periodic, sparse Direct Radiating Arrays employing equi-amplitude (isophoric) radiators
represent an appealing solution to meet the requirements of next satellite services. In this …

A generalized hybrid algorithm for the synthesis of uniform amplitude ring-arrays is
introduced. The method exploits the analytical properties of the field radiated by a circular …

We propose a new approach to the mask‐constrained power synthesis of reconfigurable
circular‐ring array antennas for monopulse radar applications. By resorting to Orbital …

The problem of the optimal synthesis of circularly symmetric aperture distributions able to
radiate pencil beams fulfilling well-defined requirements on the far-field and/or the directivity …

We present a new approach to the problem of detecting element failures in any kind of array
antenna. The proposed method requires only phaseless information on the generated field …

With reference to the mask-constrained power synthesis of shaped beams through fixed-
geometry antenna arrays, we elaborate a recently proposed approach and introduce an …