Flexible payload architecture for multiple shaped-beam coverage from a S-DMB geostationary satellite system

The paper presents the proposed architecture and the optimization results of a flexible payload for S-band mobile broadcasting to multiple shaped-beams. A key element in the payload is constituted by the high power section which provides RF power generation and distribution to feeds with appropriate amplitude and/or phase beamforming constraints to realize different shaped coverages. The outcome of the design and optimization activity is a promising architectural solution showing a high degree of coverage reconfigurability as well as an almost full freedom in power-to-beam allocation.