LEO Sun-Synchronous/GEO Relay Space Solar Power Concept Summary • Multiple-segment system designed to provide continuous global coverage with most high-mass assets in LEO • Sun-synchronous spacecraft in LEO transmit power via laser to GEO spacecraft • GEO spacecraft then transmit power via laser to high-altitude Airstat(s) • Airstat(s) then transmit at 2.45 GHz to rectennas on the ground • Early capability for flexible rectenna site location at limited oower levels • LEO Sun-Synchronous spacecraft - PV arrays, electricity converted to laser energy • GEO Spacecraft - Passive mirror system for reflecting laser from LEO • Airstat system (lighter than air, aircraft or helicopter) - High altitude, collect laser, convert to RF at 2.45 GHz and transmit • Rectenna - Small diameter rectennas
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