Caltech's space solar power demonstrator wirelessly transmits power in space

https://www.caltech.edu/about/news/in-a-first-caltechs-space-solar-power-demonstrator-wirelessly-transmits-power-in-space

"Microwave Array for Power-transfer Low-orbit Experiment (MAPLE)... constructive destructive interference between transmitters, power transmitter bank shift focus/ direction energy, no moving parts... timing-control elements dynamically focus power using coherent electromagnetic waves.... 2 receiver arrays foot away from transmitter receive and convert energy  DC to light up LED pair... not sealed, not subject to harsh space environment... transmission antennas clustered groups of 16... fold up into packages 1 m3"

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