Evolutionary algorithms can be successfully exploited for carrying on an effective design of
beam-scanning passive reflectarrays, even if the problem is highly non-linear and …

In this work, preliminary results on the design of a dielectric transmitarray (TA) antenna are
presented. The unit-cell consists in two circular cylinders located on the two sides of a thin …

In this work, an innovative approach for the design of a shaped-beam reflectarray (RA) is
presented. It is based on the use of a novel evolutionary algorithm (EA), named Social …

In this work, the procedure for the design of innovative reflectarray (RA) antennas able to
radiate multiple Orbital Angular Momentum (OAM) modes is introduced. Extending the …

In this paper, a dielectric resonator-based unit-cell is used to design a reflectarray antenna
with improved efficiency. The unit-cell is a dielectric structure composed of a cylindrical …

This paper proposes a single-layer perforated dielectric reflectarray antenna that operates in
Ka-band. The unit-cell is made up of a dielectric element perforated by a centered square …

In this article, the design of a passive reflectarray with beam-scanning capabilities over a
wide scan range is addressed. The proposed approach is based on the use of an efficient …