OverviewElementary overviewHistoryField regionsNear-field (nonradiative) techniquesFar-field (radiative) techniquesEnergy harvestingUses
Wireless power transfer (WPT; also wireless energy transmission or WET) is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, an electrically powered transmitter device generates a time-varying electromagnetic field that transmits power across space to a receiver device; the receiver device extracts power from the field and supplies it to an electrical load.
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