Back to results
US 11,502,552 B2Granted
Smart RF lensing: efficient, dynamic and mobile wireless power transfer
AssigneeCalifornia Institute of Technology
InventorsKaushik Sengupta, Seyed Ali Hajimiri
Life of this patent
Estimating the term…
Abstract
An RF lens includes a multitude of radiators adapted to transmit radio frequency electromagnetic EM waves whose phases are modulated so as to concentrate the radiated power in a small volume of space in order to power an electronic device positioned in that space. Accordingly, the waves emitted by the radiators are caused to interfere constructively at that space. The multitude of radiators are optionally formed in a one-dimensional or two-dimensional array. The electromagnetic waves radiated by the radiators have the same frequency but variable amplitudes.
Claims26
A wireless charger comprising:
- a first tile comprising a first plurality of radiators configured to radiate radio frequency (RF) electromagnetic waves;
- and
- a second tile comprising a second plurality of radiators configured to radiate RF electromagnetic waves, wherein said first and second tiles are adapted to be positioned directly next to one another so as to operate in concert and wirelessly power a first device positioned away from the wireless charger, said wireless charger forming an RF lens.
Dependencies are inferred from the claim text.