Multiple Spot Beam Reflector Antenna for High Throughput Satellites using Additive Manufacturing Technology

This paper presents a multiple spot single-feed-per-beam antenna for high throughput satellites. A three reflector solution is employed that uses horns, specially designed to maximize not only the directivity but also the carrier-to-interference ratio. In order to save costs for assembly and integration, an entire feed cluster including waveguide routing was manufactured by additive manufacturing technology. The determined performance for a multiple spot beam Ku-band scenario, based on measured pattern of the manufactured feed cluster, demonstrates the efficiency of the approach.