Ku-band Downlink Reconfigurable Active Antenna for Quantum Mission

In this paper the innovative downlink active antenna configuration preliminarily designed for the Eutelsat Quantum programme is presented. The optimized Ku-band antenna architecture, consisting of a single quasi-flat reflector fed by two small active phased arrays, one for each linear polarization, is able to meet the Eutelsat Quantum mission flexibility requirements in terms of frequency plan, power and coverage, with a simple active reconfigurable antenna architecture.