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Lunar Wireless Power Transfer Feasibility Study


Prof. Zoya Popovic, University of Colorado, Boulder
David R. Beckett, Scott R. Anderson, Diana Mann, Stuart Walker, Independent Consultants
Sheldon Fried, Ph.D., National Security Technologies, LLC

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Abstract –


This study examines the feasibility of a multi-kilowatt wireless radio frequency (RF)
power system to transfer power between lunar base facilities. Initial analyses, show that wireless
power transfer (WPT) systems can be more efficient and less expensive than traditional wired
approaches for certain lunar and terrestrial applications. The study includes evaluations of the
fundamental limitations of lunar WPT systems, the interrelationships of possible operational
parameters, and a baseline design approach for a notionial system that could be used in the near
future to power remote facilities at a lunar base. Our notional system includes state-of-the-art
photovoltaics (PVs), high-efficiency microwave transmitters, low-mass large-aperture high-power
transmit antennas, high-efficiency large-area rectenna receiving arrays, and reconfigurable DC
combining circuitry.