Bicycle Wheel Integrated PV/RF SPS Concept: GEO-based low mass design for microwave transmission of tens to hundreds of MW of power. Key Features: Integrated PV/RF construction Rotation to provide tension of planar array Gossamer (ultra light) construction Suggestor/Source: Landis and Cull, NASA/ LeRC Discussion Landis and Cull suggested innovative manufacturing techniques to provide integrated PV and RF on a single substrate. For example, both the PV and RF could be on the same side of a surface (such as the centrifugal force tensioned disc mentioned here, or on the surface of an inflatable sphere.) Advantages Disadvantages Very low mass in space Easy deployment possible Small spot size due to large RF aperture High teclinical risk Simultaneous Sun and Earth pointing requirement poses a challenge
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