Transmit-Receive Parabolic Reflectarray to Generate Two Beams per Feed for Multi-Spot Satellite Antennas in Ka-Band

This contribution describes the design of a multibeam parabolic reflectarray to produce two adjacent beams per feed in orthogonal circular polarization (CP) simultaneously at the transmission (Tx) and reception (Rx) frequencies in the Ka-band. The variable rotation technique (VRT) has been applied to the reflectarray cells based on two types of resonant elements, which makes it possible to provide...