In this letter, a beam scanning Alvarez reflectarray (RA) metasurface with its focal length (F)
inversely proportional to the phase distribution on the Alvarez RA aperture is presented …

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 …

Current high throughput satellites (HTS) in Ka-band are required to provide multiple spot
beam coverage based on frequency and polarization reuse, both in transmission (Tx, 19.2 …

Today's satellite communications for broadband services, such as Internet access, are
predominantly provided by geostationary satellites known as high throughput satellites …

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 …

This work focuses on analysis, design and optimization of broadband reflectarray antenna
elements embedded on organic substrate materials. It addresses the key limitations of …